How many institutions own AMTM stock?

A company's 13F filings with the Securities and Exchange Commission (SEC) provides investors with comprehensive information about institutional ownership in a listed company, a sign of strength in terms of how many institutions have confidence in that company. The number of institutional investors who currently own AMTM shares is 628, representing 103.06% of the company's common stock.

Who are the major shareholders selling Amentum Holdings, Inc. stock?

MOORE CAPITAL MANAGEMENT, LP, in the last quarter, reduced its stake in AMTM by -33.33% restricting it's holding to 407.42 thousand shares of worth nearly $9.76M. ARISTOTLE CAPITAL BOSTON, LLC also lessened -3.27% of the AMTM shares from its portfolio, reducing its holding to 409.14 thousand shares of worth $9.80M. MILLENNIUM MANAGEMENT LLC also shunned AMTM shares holding by -86.27% last quarter which brought its holding to 640.8 thousand shares worth $15.35M.

Investors who are buying AMTM stock?

As per its latest 13F filing, SEGRA CAPITAL MANAGEMENT, LLC increased its stake in AMTM by 100% in the last quarter. The institutional holder raised its holding to 417.03 thousand shares having worth more than $9.99M. HYPERION CAPITAL ADVISORS LP also added 715.76% more shares of AMTM to its portfolio, raising its holding to 420.01 thousand shares of worth $10.06M. LOOMIS SAYLES & CO L P also increased its AMTM shares holding by 0.46% which brought its holding to 1.06 million shares worth $25.48M.

AMTM's major insiders: who are they?

The insider with the most stakes in AMTM is DEMETRIOU STEVEN J. , Executive Chair at the company. Additionally, AMTM stock is highly held by director Loughran Barbara and N/A N/A among others.

Did an insider recently sell AMTM stock?

Company executives, directors, and other insiders own 1.58% percent of Amentum Holdings, Inc.'s stock. Within the last six months, there have been 0 transaction(s) in which AMTM insiders have sold stock, totaling 0 shares. Insiders that have sold shares include .

Which insider recently purchased AMTM stock?

There have been 0 transaction(s) during the past 6-months in which Amentum Holdings, Inc. insiders have bought stock, totalling 0 shares

How much of AMTM does insiders own?

Around 0 Amentum Holdings, Inc. shares are held by insiders, which represents about 1.58% of AMTM stock.

Who is the insider with the largest stake?

AMTM Executive Chair, DEMETRIOU STEVEN J. holds the largest portfolio of the company's shares. AMTM shares owned by DEMETRIOU total nearly 620.89 thousand.

Which institution holds the most shares in AMTM?

MOORE CAPITAL MANAGEMENT, LP is the largest institutional owner in AMTM which holds 407.42 thousand shares worth $9.76M or 0.17% of the total AMTM shares outstanding followed by ARISTOTLE CAPITAL BOSTON, LLC with ownership of 409.14 thousand shares representing 0.17% of the AMTM ownership. SEGRA CAPITAL MANAGEMENT, LLC is the third largest stakeholder with 417.03 thousand shares or 0.17% of the ownership worth more than $9.99M.

Is Amentum Holdings, Inc. stock optionable?

Stock options give the owner the ability but not the obligation to buy or sell a security at a predetermined price and date. Stock options can be classified into two types: puts and calls. A put is a bet on falling stock, and a call is a bet on rising stock. As far as the AMTM is concerned, it is a stock which is optionable.

Is there a short position on AMTM's shares?

Number of AMTM shares short is 9.56M. Shares short is a market sentiment in which investors have sold their shares short in a given stock but have not yet covered them or closed them out.

About how many outstanding AMTM shares are there?

As of today, 243.60M shares of AMTM are outstanding.

Is there many float in AMTM stock?

Float represents the number of tradeable shares in a specific stock. By subtracting restricted and closely-held shares from a firm's total outstanding shares, we can calculate its floating stock. The term "closely-held shares" refers to shares held by employees, major shareholders, and company insiders. At present, AMTM has 152.01M shares in float.

AMTM short ratio: what is it?

Short ratio is calculated by dividing the number of short shares, short interest or bets that shareholders will sell short from the average daily volume. A higher ratio indicates longer times needed to repurchase borrowed shares (sold). The short ratio for AMTM is 3.76.

Amentum (AMTM) insider trading activity: Get Latest News Today

Stock Outstanding Shares

Making an investment decision in the stock market involves a certain amount of risk, so it's important to thoroughly review a company's stock before making any decisions. Stock float, number of short positions and outstanding shares are among the many factors an investor should take into account.

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares3.92

Short Percent Of Float8.66

Shares Outstanding243.60M

Shares Float152.01M

Shares Short9.56M

Short Ratio3.76

8.66%

Short % of Float

3.92%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

1.58% Percentage of Shares held by All Insiders

103.06% Percentage of Shares held by All Institutions

104.72% Percentage of Float held by Institutions

628

Number of Institutions Holding Shares

Institutional Ownership

About 103.06% of AMTM shares are held by financial institutions. MOORE CAPITAL MANAGEMENT, LP is the top corporate investor, holding 407.42K shares valued at $9.76M. A 0.17% stake in Amentum Holdings, Inc. is owned by the company. ARISTOTLE CAPITAL BOSTON, LLC owns 409.14K shares valued at $9.80M, which translates its holding of 0.17% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Sep 30, 2025	MOORE CAPITAL MANAGEMENT, LP	0.17%	407.42K	9.76M	-203.71K	-33.33%
Sep 30, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.17%	409.14K	9.8M	-13.83K	-3.27%
Sep 30, 2025	SEGRA CAPITAL MANAGEMENT, LLC	0.17%	417.03K	9.99M	417.03K	+100.00%
Sep 30, 2025	HYPERION CAPITAL ADVISORS LP	0.17%	420.01K	10.06M	368.52K	+715.76%
Sep 30, 2025	MILLENNIUM MANAGEMENT LLC	0.26%	640.8K	15.35M	-4.03M	-86.27%
Sep 30, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.27%	659.08K	15.78M	-34.7K	-5.00%
Sep 30, 2025	PRINCIPAL FINANCIAL GROUP INC	0.3%	735.76K	17.62M	-8.76K	-1.18%
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0.33%	798.44K	19.12M	-69.83K	-8.04%
Sep 30, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.4%	960.61K	23.06M	-42.87K	-4.27%
Sep 30, 2025	LOOMIS SAYLES & CO L P	0.44%	1.06M	25.48M	4.87K	+0.46%
Sep 30, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.45%	1.08M	25.99M	433.4K	+66.52%
Sep 30, 2025	BLACKROCK, INC.	7.4%	17.99M	430.87M	-1M	-5.29%
Sep 30, 2025	INVESCO LTD.	9.1%	22.12M	529.7M	2.54M	+12.97%
Sep 30, 2025	AMERICAN SECURITIES LLC	18.53%	45.03M	1.08B	0	0
Sep 30, 2025	TWO SIGMA INVESTMENTS, LP	0.16%	399.12K	9.56M	385.39K	+2,807.15%
Sep 30, 2025	VIDENT ADVISORY, LLC	0.19%	454.7K	10.89M	22.54K	+5.22%
Sep 30, 2025	NUVEEN, LLC	0.31%	751.3K	17.99M	234.73K	+45.44%
Sep 30, 2025	VOSS CAPITAL, LLC	0.26%	625K	14.97M	-775K	-55.36%
Sep 30, 2025	GOLDMAN SACHS GROUP INC	0.33%	811.93K	19.45M	573.68K	+240.79%
Sep 30, 2025	CACTI ASSET MANAGEMENT LLC	0.35%	857.09K	19.34M	8.15K	+0.96%
Sep 30, 2025	AVENIR CORP	0.35%	862.45K	20.66M	-32.9K	-3.67%
Sep 30, 2025	NORTHERN TRUST CORP	0.39%	942.95K	22.58M	1.91K	+0.20%
Sep 30, 2025	VERITION FUND MANAGEMENT LLC	0.47%	1.14M	27.2M	1.04M	+1,127.96%
Sep 30, 2025	DISCOVERY CAPITAL MANAGEMENT, LLC / CT	0.47%	1.14M	27.28M	-1.16M	-50.45%
Sep 30, 2025	683 CAPITAL MANAGEMENT, LLC	0.52%	1.28M	30.54M	-355K	-21.78%
Sep 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.54%	1.31M	31.27M	-28.7K	-2.15%
Sep 30, 2025	POINT72 ASSET MANAGEMENT, L.P.	0.57%	1.38M	33.07M	1.03M	+293.86%
Sep 30, 2025	LEGAL & GENERAL GROUP PLC	0.16%	388.29K	9.3M	-16.38K	-4.05%
Sep 30, 2025	BW GESTAO DE INVESTIMENTOS LTDA.	0.21%	511.48K	12.25M	-203.59K	-28.47%
Sep 30, 2025	VANGUARD GROUP INC	6.4%	15.55M	372.53M	-979.13K	-5.92%
Sep 30, 2025	MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.	0.86%	2.08M	49.85M	701.86K	+50.87%
Sep 30, 2025	ROYCE & ASSOCIATES LP	0.19%	454.5K	10.89M	119.5K	+35.67%
Sep 30, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.25%	597.98K	14.32M	83.8K	+16.30%
Sep 30, 2025	VAN ECK ASSOCIATES CORP	0.32%	765.68K	18.34M	-2.3M	-75.04%
Sep 30, 2025	CI INVESTMENTS INC.	0.18%	428.27K	10.26M	-26.15K	-5.75%
Sep 30, 2025	ARVIN CAPITAL MANAGEMENT LP	0.67%	1.64M	39.19M	-502.94K	-23.51%
Sep 30, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	1%	2.42M	58.05M	-18K	-0.74%
Sep 30, 2025	BRIGHTLINE CAPITAL MANAGEMENT, LLC	0.49%	1.2M	28.74M	200K	+20.00%
Sep 30, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.74%	1.81M	43.24M	118.31K	+7.01%
Sep 30, 2025	MORGAN STANLEY	0.74%	1.81M	43.26M	-370.81K	-17.03%
Sep 30, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.76%	1.84M	44.12M	97.16K	+5.57%
Sep 30, 2025	FMR LLC	2.57%	6.24M	149.33M	1.66M	+36.32%
Sep 30, 2025	CENTERBOOK PARTNERS LP	0.13%	308.08K	7.38M	182.74K	+145.80%
Sep 30, 2025	SWISS NATIONAL BANK	0.13%	306.49K	7.34M	4.3K	+1.42%
Sep 30, 2025	RHUMBLINE ADVISERS	0.12%	289.82K	6.94M	2.57K	+0.90%
Sep 30, 2025	RUSSELL INVESTMENTS GROUP, LTD.	0.12%	289.55K	6.93M	-38.63K	-11.77%
Sep 30, 2025	EXCHANGE TRADED CONCEPTS, LLC	0.11%	267.49K	6.41M	264.16K	+7,928.03%
Sep 30, 2025	UBS GROUP AG	0.1%	231.19K	5.54M	-535.11K	-69.83%
Sep 30, 2025	SEI INVESTMENTS CO	0.08%	200.52K	4.8M	-18.6K	-8.49%
Sep 30, 2025	TELOS CAPITAL MANAGEMENT, INC.	0.08%	189.86K	4.55M	-30.86K	-13.98%
Sep 30, 2025	HUDSON VALUE PARTNERS, LLC	0.08%	185.83K	4.45M	124	+0.07%
Sep 30, 2025	LINGOHR & PARTNER ASSET MANAGEMENT GMBH	0.07%	175K	4.19M	165K	+1,650.00%
Sep 30, 2025	COUNTRY CLUB BANK /GFN	0.07%	172.46K	3.94M	144	+0.08%
Sep 30, 2025	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	0.06%	150.35K	3.8M	-4.76K	-3.07%
Sep 30, 2025	PRUDENTIAL FINANCIAL INC	0.06%	147.2K	3.53M	-2.81K	-1.87%
Sep 30, 2025	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	0.06%	140.92K	3.38M	3.48K	+2.53%
Sep 30, 2025	JPMORGAN CHASE & CO	0.04%	104.77K	2.51M	13.45K	+14.73%
Sep 30, 2025	GAMCO INVESTORS, INC. ET AL	0.04%	99.64K	2.39M	-9.03K	-8.31%
Sep 30, 2025	NORTH GROWTH MANAGEMENT LTD.	0.04%	97K	2.31M	0	0
Sep 30, 2025	LPL FINANCIAL LLC	0.04%	90.73K	2.17M	-5	-0.01%
Sep 30, 2025	ENVESTNET ASSET MANAGEMENT INC	0.04%	89.59K	2.15M	-7.2K	-7.43%
Sep 30, 2025	STATE OF NEW JERSEY COMMON PENSION FUND D	0.04%	87.64K	2.1M	-12.46K	-12.45%
Sep 30, 2025	ILLINOIS MUNICIPAL RETIREMENT FUND	0.03%	82.63K	1.98M	7.18K	+9.51%
Sep 30, 2025	PRIMECAP MANAGEMENT CO/CA/	4.9%	11.92M	285.45M	-112.07K	-0.93%
Sep 30, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.24%	3.01M	72.04M	7.08K	+0.24%
Sep 30, 2025	FIL LTD	0.64%	1.56M	37.34M	-508.18K	-24.58%
Sep 30, 2025	FREESTONE GROVE PARTNERS LP	0.84%	2.05M	49.14M	0	0
Sep 30, 2025	COMERICA BANK	0.13%	312.64K	7.49M	-49.22K	-13.60%
Sep 30, 2025	AMERIPRISE FINANCIAL INC	0.15%	355.95K	8.52B	13.08K	+3.82%
Sep 30, 2025	BANK OF NEW YORK MELLON CORP	0.36%	866.26K	20.75M	-1.94K	-0.22%
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.09%	2.65M	63.59M	141.02K	+5.61%
Sep 30, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.12%	2.73M	65.39M	-56.62K	-2.03%
Sep 30, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	2.14%	5.2M	124.6M	-258.06K	-4.73%
Sep 30, 2025	STATE STREET CORP	2.81%	6.83M	163.66M	-244.87K	-3.46%
Jun 30, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.23%	3M	70.85M	-74.64K	-2.43%
Jun 30, 2025	INVESCO LTD.	8.06%	19.58M	462.22M	2.39M	+13.88%
Jun 30, 2025	STATE STREET CORP	2.91%	7.08M	167.12M	501.9K	+7.63%
Jun 30, 2025	MILLENNIUM MANAGEMENT LLC	1.92%	4.67M	110.17M	2.65M	+131.94%
Jun 30, 2025	NORTHERN TRUST CORP	0.39%	941.03K	22.22M	86.61K	+10.14%
Jun 30, 2025	UBS ASSET MANAGEMENT AMERICAS INC	0.18%	430.54K	10.17M	157.26K	+57.54%
Jun 30, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	1%	2.44M	57.65M	48.7K	+2.04%
Jun 30, 2025	DISCOVERY CAPITAL MANAGEMENT, LLC / CT	0.95%	2.3M	54.28M	-331.8K	-12.61%
Jun 30, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.17%	422.98K	9.99M	-23.64K	-5.29%
Jun 30, 2025	POINT72 ASSET MANAGEMENT, L.P.	0.14%	350.63K	8.28M	350.63K	+100.00%
Jun 30, 2025	ROYCE & ASSOCIATES LP	0.14%	335K	7.91M	335K	+100.00%
Jun 30, 2025	AWH CAPITAL, L.P.	0.07%	165.25K	3.9M	122.75K	+288.82%
Jun 30, 2025	ANCORA ADVISORS, LLC	0.05%	132.2K	3.12M	63.43K	+92.24%
Jun 30, 2025	WINTON GROUP LTD	0.05%	112.42K	2.65M	-4.26K	-3.65%
Jun 30, 2025	SOVIERO ASSET MANAGEMENT, LP	0.05%	110K	2.6M	110K	+100.00%
Jun 30, 2025	GAMCO INVESTORS, INC. ET AL	0.04%	108.67K	2.57M	108.67K	+100.00%
Jun 30, 2025	STATE OF NEW JERSEY COMMON PENSION FUND D	0.04%	100.1K	2.36M	2.45K	+2.51%
Jun 30, 2025	NORTH GROWTH MANAGEMENT LTD.	0.04%	97K	2.3M	5K	+5.43%
Jun 30, 2025	VERITION FUND MANAGEMENT LLC	0.04%	92.48K	2.18M	-198.23K	-68.19%
Jun 30, 2025	STATE OF WISCONSIN INVESTMENT BOARD	0.04%	91.86K	2.17M	-3.86K	-4.03%
Jun 30, 2025	STATE OF ALASKA, DEPARTMENT OF REVENUE	0.04%	89.83K	2.12M	10.49K	+13.22%
Jun 30, 2025	ARVIN CAPITAL MANAGEMENT LP	0.88%	2.14M	50.51M	452.29K	+26.81%
Jun 30, 2025	683 CAPITAL MANAGEMENT, LLC	0.67%	1.63M	38.48M	617K	+60.91%
Jun 30, 2025	CACTI ASSET MANAGEMENT LLC	0.35%	848.95K	19.91M	14.5K	+1.74%
Jun 30, 2025	LOEWS CORP	0.19%	470K	11.1M	-102.68K	-17.93%
Jun 30, 2025	CRESTWOOD ADVISORS GROUP LLC	0.03%	81.77K	1.93M	1.22K	+1.51%
Jun 30, 2025	ILLINOIS MUNICIPAL RETIREMENT FUND	0.03%	75.45K	1.78M	8.95K	+13.45%
Jun 30, 2025	ALPINE GLOBAL MANAGEMENT, LLC	0.03%	75.06K	1.77M	-24.94K	-24.94%
Jun 30, 2025	MARSHALL WACE, LLP	0.03%	74.83K	1.77M	-72.52K	-49.22%
Jun 30, 2025	TREASURER OF THE STATE OF NORTH CAROLINA	0.03%	74.37K	1.76M	6.59K	+9.71%
Jun 30, 2025	LOUISIANA STATE EMPLOYEES RETIREMENT SYSTEM	0.03%	70.5K	1.66M	12.1K	+20.72%
Jun 30, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	2.25%	5.46M	128.93M	1.88M	+52.59%
Jun 30, 2025	FMR LLC	1.88%	4.57M	107.99M	164.98K	+3.74%
Jun 30, 2025	PRIMECAP MANAGEMENT CO/CA/	4.95%	12.03M	284.04M	1.97M	+19.57%
Jun 30, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.15%	2.79M	65.8M	-539.47K	-16.22%
Jun 30, 2025	MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.	0.57%	1.38M	32.58M	1.38M	+100.00%
Jun 30, 2025	RFG ADVISORY, LLC	0.04%	102.17K	2.41M	102.17K	+100.00%
Jun 30, 2025	MORGAN STANLEY	0.9%	2.18M	51.4M	84.37K	+4.03%
Jun 30, 2025	FIL LTD	0.85%	2.07M	48.81M	-142.11K	-6.43%
Jun 30, 2025	CENTERBOOK PARTNERS LP	0.05%	125.34K	2.96M	-289.23K	-69.77%
Jun 30, 2025	AQR CAPITAL MANAGEMENT LLC	0.14%	350.2K	8.27B	350.2K	+100.00%
Jun 30, 2025	ALLIANCEBERNSTEIN L.P.	0.14%	348.68K	8.23B	293.51K	+531.91%
Jun 30, 2025	GRIZZLYROCK CAPITAL, LLC	0.1%	253.36K	5.98M	89.14K	+54.28%
Jun 30, 2025	AROSA CAPITAL MANAGEMENT LP	0.1%	252.5K	5.96M	-154.4K	-37.95%
Jun 30, 2025	TELOS CAPITAL MANAGEMENT, INC.	0.09%	220.72K	5.21M	-35.46K	-13.84%
Jun 30, 2025	Y-INTERCEPT (HONG KONG) LTD	0.08%	198.73K	4.69M	198.73K	+100.00%
Jun 30, 2025	RAYMOND JAMES FINANCIAL INC	0.08%	189.81K	4.48M	9.24K	+5.12%
Jun 30, 2025	HUDSON VALUE PARTNERS, LLC	0.08%	185.7K	4.38M	-2.58K	-1.37%
Jun 30, 2025	COUNTRY CLUB BANK /GFN	0.07%	172.32K	4.04M	78.57K	+83.80%
Jun 30, 2025	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	0.07%	162.3K	3.83B	31.12K	+23.73%
Jun 30, 2025	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	0.06%	155.1K	3.76M	3.3K	+2.18%
Jun 30, 2025	AMERICAN SECURITIES LLC	18.53%	45.03M	1.06B	1.13M	+2.58%
Jun 30, 2025	BLACKROCK, INC.	7.82%	19M	448.47M	746.09K	+4.09%
Jun 30, 2025	VAN ECK ASSOCIATES CORP	1.26%	3.07M	72.44M	464.59K	+17.84%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.03%	2.51M	59.35M	213.16K	+9.27%
Jun 30, 2025	FREESTONE GROVE PARTNERS LP	0.84%	2.05M	48.44M	887.02K	+76.15%
Jun 30, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.72%	1.75M	41.2M	195.86K	+12.64%
Jun 30, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.69%	1.69M	39.83M	65.78K	+4.06%
Jun 30, 2025	VOSS CAPITAL, LLC	0.58%	1.4M	33.05M	-820.71K	-36.96%
Jun 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.55%	1.33M	31.51M	221.1K	+19.85%
Jun 30, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.21%	514.17K	12.14M	59.04K	+12.97%
Jun 30, 2025	CI INVESTMENTS INC.	0.19%	454.42K	10.73M	10.84K	+2.44%
Jun 30, 2025	ROYAL BANK OF CANADA	0.18%	443.2K	10.46M	-139K	-23.87%
Jun 30, 2025	NUVEEN, LLC	0.21%	516.57K	12.2M	228.77K	+79.49%
Jun 30, 2025	VIDENT ADVISORY, LLC	0.18%	432.17K	10.2M	139.31K	+47.57%
Jun 30, 2025	NORGES BANK	0.89%	2.16M	51.01M	2.16M	+100.00%
Jun 30, 2025	LOOMIS SAYLES & CO L P	0.44%	1.06M	25.01M	623.54K	+143.12%
Jun 30, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.41%	1M	23.76M	114.04K	+12.82%
Jun 30, 2025	BRIGHTLINE CAPITAL MANAGEMENT, LLC	0.41%	1M	23.61M	1M	+100.00%
Jun 30, 2025	AVENIR CORP	0.37%	895.35K	21.14M	-8.81K	-0.97%
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0.36%	868.27K	20.5M	-100.27K	-10.35%
Jun 30, 2025	BANK OF NEW YORK MELLON CORP	0.36%	868.21K	20.5M	107.7K	+14.16%
Jun 30, 2025	UBS GROUP AG	0.32%	766.3K	18.09M	-763.83K	-49.92%
Jun 30, 2025	PRINCIPAL FINANCIAL GROUP INC	0.31%	744.52K	17.58M	32.35K	+4.54%
Jun 30, 2025		0.21%	516.57K	12.2M	228.77K	+79.49%
Jun 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.21%	516.4K	12.19M	243.8K	+89.44%
Jun 30, 2025	VANGUARD GROUP INC	6.8%	16.53M	390.36M	191.27K	+1.17%
Jun 30, 2025	BW GESTAO DE INVESTIMENTOS LTDA.	0.29%	715.07K	16.88M	320.67K	+81.30%
Jun 30, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.29%	693.78K	16.38M	81.99K	+13.40%
Jun 30, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.27%	651.57K	15.38M	23.42K	+3.73%
Jun 30, 2025	KOPERNIK GLOBAL INVESTORS, LLC	0.26%	636.23K	15.02M	-441.27K	-40.95%
Jun 30, 2025	ENGINE CAPITAL MANAGEMENT, LP	0.26%	635.26K	15M	0	0
Jun 30, 2025	CSM ADVISORS, LLC	0.26%	633.05K	14.95M	-5.01K	-0.79%
Jun 30, 2025	MOORE CAPITAL MANAGEMENT, LP	0.25%	611.12K	14.43M	112.86K	+22.65%
Jun 30, 2025	CAPTION MANAGEMENT, LLC	0.24%	572.7K	13.52M	450.7K	+369.43%
Mar 31, 2025	INVESCO LTD.	7.07%	17.19M	312.88M	3.33M	+24.07%
Mar 31, 2025	MORGAN STANLEY	0.86%	2.09M	38.09M	610.33K	+41.17%
Mar 31, 2025	BLACKROCK, INC.	7.51%	18.25M	332.13M	1.47M	+8.79%
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	0.46%	1.11M	20.27M	-40.48K	-3.51%
Mar 31, 2025	ARVIN CAPITAL MANAGEMENT LP	0.3%	731.4K	13.31M	531.4K	+265.70%
Mar 31, 2025	KOPERNIK GLOBAL INVESTORS, LLC	0.44%	1.08M	19.61M	311.51K	+40.67%
Mar 31, 2025	FREESTONE GROVE PARTNERS LP	0.48%	1.16M	21.2M	1.16M	+100.00%
Mar 31, 2025	COOPER CREEK PARTNERS MANAGEMENT LLC	0.5%	1.22M	22.28M	-2.93M	-70.56%
Mar 31, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.54%	1.31M	23.82M	-303.17K	-18.81%
Mar 31, 2025	UBS GROUP AG	0.63%	1.53M	27.85M	398.39K	+35.20%
Mar 31, 2025	VOSS CAPITAL, LLC	0.91%	2.22M	40.42M	1.77M	+393.69%
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.95%	2.3M	41.87M	336.75K	+17.15%
Mar 31, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.18%	446.61K	8.13M	-30.37K	-6.37%
Mar 31, 2025	DAVIDSON KEMPNER CAPITAL MANAGEMENT LP	0.19%	450K	8.19M	450K	+100.00%
Mar 31, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	0.98%	2.39M	43.55M	-43.26K	-1.78%
Mar 31, 2025	AMERICAN SECURITIES LLC	18.06%	43.89M	798.87B	0	0
Mar 31, 2025	PRINCIPAL FINANCIAL GROUP INC	0.29%	712.17K	12.96M	110.12K	+18.29%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0.4%	968.54K	17.63M	359.69K	+59.08%
Mar 31, 2025	GOLDMAN SACHS GROUP INC	0.18%	447.58K	8.15M	175.35K	+64.41%
Mar 31, 2025	MOORE CAPITAL MANAGEMENT, LP	0.2%	498.26K	9.07M	-93.93K	-15.86%
Mar 31, 2025	LOEWS CORP	0.24%	572.68K	10.42M	572.68K	+100.00%
Mar 31, 2025	ROYAL BANK OF CANADA	0.24%	582.2K	10.6M	-36.71K	-5.93%
Mar 31, 2025	BANK OF NEW YORK MELLON CORP	0.31%	760.51K	13.84M	109.2K	+16.77%
Mar 31, 2025	CACTI ASSET MANAGEMENT LLC	0.34%	834.44K	15.08M	9.98K	+1.21%
Mar 31, 2025	NORTHERN TRUST CORP	0.35%	854.42K	15.55M	12.2K	+1.45%
Mar 31, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.37%	889.43K	16.23M	443.13K	+99.29%
Mar 31, 2025	AVENIR CORP	0.37%	904.16K	16.46M	710.69K	+367.34%
Mar 31, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.64%	1.55M	28.19M	284.9K	+22.54%
Mar 31, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.19%	455.13K	8.28M	145.94K	+47.20%
Mar 31, 2025	ENGINE CAPITAL MANAGEMENT, LP	0.26%	635.26K	11.56M	13.86K	+2.23%
Mar 31, 2025	CSM ADVISORS, LLC	0.26%	638.06K	11.61M	-1K	-0.16%
Mar 31, 2025	BALYASNY ASSET MANAGEMENT L.P.	0.77%	1.88M	34.23M	1.88M	+100.00%
Mar 31, 2025	MILLENNIUM MANAGEMENT LLC	0.83%	2.01M	36.61M	815.22K	+68.13%
Mar 31, 2025	FIL LTD	0.91%	2.21M	40.21M	415.76K	+23.18%
Mar 31, 2025	VAN ECK ASSOCIATES CORP	1.07%	2.6M	47.39M	1.47M	+129.94%
Mar 31, 2025	CITADEL ADVISORS LLC	1.2%	2.93M	53.26M	2.53M	+641.22%
Mar 31, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.27%	3.08M	55.97M	-11.71M	-79.20%
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.22%	533.57K	9.71M	-342.79K	-39.12%
Mar 31, 2025	JANE STREET GROUP, LLC	0.25%	601.76K	10.95M	574.27K	+2,089.01%
Mar 31, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.25%	611.79K	11.14M	232.84K	+61.44%
Mar 31, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.26%	628.15K	11.43M	224.04K	+55.44%
Mar 31, 2025	683 CAPITAL MANAGEMENT, LLC	0.42%	1.01M	18.44M	588K	+138.35%
Mar 31, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.37%	3.33M	60.54M	1.38M	+70.70%
Mar 31, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	1.47%	3.58M	65.13M	3.58M	+100.00%
Mar 31, 2025	FMR LLC	1.81%	4.41M	80.24M	2.01M	+84.09%
Mar 31, 2025	STATE STREET CORP	2.71%	6.58M	119.69M	122.1K	+1.89%
Mar 31, 2025	PRIMECAP MANAGEMENT CO/CA/	4.14%	10.06M	183.12M	3.65M	+56.86%
Mar 31, 2025	VANGUARD GROUP INC	6.73%	16.34M	297.43M	-199.89K	-1.21%

Insiders

Among the AMTM insiders holding of 1.58% of the stake in company, DEMETRIOU STEVEN J., Executive Chair, holds the largest shares of 620.89K. LOUGHRAN BARBARA, director, is the second largest AMTM insider with ownership of 4.6K shares. , , stands third with possession of - shares of that stake.

Insiders	Designation	Shares Held
DEMETRIOU STEVEN J.	Executive Chair	620.89K
LOUGHRAN BARBARA	director	4.6K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Feb 18, 2025	LOUGHRAN BARBARA	PURCHASE	21.23	4.6K	97.64K	4.6K
Feb 12, 2025	DEMETRIOU STEVEN J.	PURCHASE	20.81	100K	2.08M	620.89K

Frequently Asked Questions

Stock Outstanding Shares

ShortableYes

OptionableYes

Short Percent Of Outstanding Shares3.92

Short Percent Of Float8.66

Shares Outstanding243.60M

Shares Float152.01M

Shares Short9.56M

Short Ratio3.76

8.66%

Short % of Float

3.92%

Short % of Shares Outstanding

Market Insider

Investors cannot turn a blind eye to insiders as well as institutional ownership. They need to follow insider trades to determine the direction the stock is likely to take.

Major Holders Summary

1.58% Percentage of Shares held by All Insiders

103.06% Percentage of Shares held by All Institutions

104.72% Percentage of Float held by Institutions

628

Number of Institutions Holding Shares

Institutional Ownership

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Sep 30, 2025	MOORE CAPITAL MANAGEMENT, LP	0.17%	407.42K	9.76M	-203.71K	-33.33%
Sep 30, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.17%	409.14K	9.8M	-13.83K	-3.27%
Sep 30, 2025	SEGRA CAPITAL MANAGEMENT, LLC	0.17%	417.03K	9.99M	417.03K	+100.00%
Sep 30, 2025	HYPERION CAPITAL ADVISORS LP	0.17%	420.01K	10.06M	368.52K	+715.76%
Sep 30, 2025	MILLENNIUM MANAGEMENT LLC	0.26%	640.8K	15.35M	-4.03M	-86.27%
Sep 30, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.27%	659.08K	15.78M	-34.7K	-5.00%
Sep 30, 2025	PRINCIPAL FINANCIAL GROUP INC	0.3%	735.76K	17.62M	-8.76K	-1.18%
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0.33%	798.44K	19.12M	-69.83K	-8.04%
Sep 30, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.4%	960.61K	23.06M	-42.87K	-4.27%
Sep 30, 2025	LOOMIS SAYLES & CO L P	0.44%	1.06M	25.48M	4.87K	+0.46%
Sep 30, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.45%	1.08M	25.99M	433.4K	+66.52%
Sep 30, 2025	BLACKROCK, INC.	7.4%	17.99M	430.87M	-1M	-5.29%
Sep 30, 2025	INVESCO LTD.	9.1%	22.12M	529.7M	2.54M	+12.97%
Sep 30, 2025	AMERICAN SECURITIES LLC	18.53%	45.03M	1.08B	0	0
Sep 30, 2025	TWO SIGMA INVESTMENTS, LP	0.16%	399.12K	9.56M	385.39K	+2,807.15%
Sep 30, 2025	VIDENT ADVISORY, LLC	0.19%	454.7K	10.89M	22.54K	+5.22%
Sep 30, 2025	NUVEEN, LLC	0.31%	751.3K	17.99M	234.73K	+45.44%
Sep 30, 2025	VOSS CAPITAL, LLC	0.26%	625K	14.97M	-775K	-55.36%
Sep 30, 2025	GOLDMAN SACHS GROUP INC	0.33%	811.93K	19.45M	573.68K	+240.79%
Sep 30, 2025	CACTI ASSET MANAGEMENT LLC	0.35%	857.09K	19.34M	8.15K	+0.96%
Sep 30, 2025	AVENIR CORP	0.35%	862.45K	20.66M	-32.9K	-3.67%
Sep 30, 2025	NORTHERN TRUST CORP	0.39%	942.95K	22.58M	1.91K	+0.20%
Sep 30, 2025	VERITION FUND MANAGEMENT LLC	0.47%	1.14M	27.2M	1.04M	+1,127.96%
Sep 30, 2025	DISCOVERY CAPITAL MANAGEMENT, LLC / CT	0.47%	1.14M	27.28M	-1.16M	-50.45%
Sep 30, 2025	683 CAPITAL MANAGEMENT, LLC	0.52%	1.28M	30.54M	-355K	-21.78%
Sep 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.54%	1.31M	31.27M	-28.7K	-2.15%
Sep 30, 2025	POINT72 ASSET MANAGEMENT, L.P.	0.57%	1.38M	33.07M	1.03M	+293.86%
Sep 30, 2025	LEGAL & GENERAL GROUP PLC	0.16%	388.29K	9.3M	-16.38K	-4.05%
Sep 30, 2025	BW GESTAO DE INVESTIMENTOS LTDA.	0.21%	511.48K	12.25M	-203.59K	-28.47%
Sep 30, 2025	VANGUARD GROUP INC	6.4%	15.55M	372.53M	-979.13K	-5.92%
Sep 30, 2025	MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.	0.86%	2.08M	49.85M	701.86K	+50.87%
Sep 30, 2025	ROYCE & ASSOCIATES LP	0.19%	454.5K	10.89M	119.5K	+35.67%
Sep 30, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.25%	597.98K	14.32M	83.8K	+16.30%
Sep 30, 2025	VAN ECK ASSOCIATES CORP	0.32%	765.68K	18.34M	-2.3M	-75.04%
Sep 30, 2025	CI INVESTMENTS INC.	0.18%	428.27K	10.26M	-26.15K	-5.75%
Sep 30, 2025	ARVIN CAPITAL MANAGEMENT LP	0.67%	1.64M	39.19M	-502.94K	-23.51%
Sep 30, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	1%	2.42M	58.05M	-18K	-0.74%
Sep 30, 2025	BRIGHTLINE CAPITAL MANAGEMENT, LLC	0.49%	1.2M	28.74M	200K	+20.00%
Sep 30, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.74%	1.81M	43.24M	118.31K	+7.01%
Sep 30, 2025	MORGAN STANLEY	0.74%	1.81M	43.26M	-370.81K	-17.03%
Sep 30, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.76%	1.84M	44.12M	97.16K	+5.57%
Sep 30, 2025	FMR LLC	2.57%	6.24M	149.33M	1.66M	+36.32%
Sep 30, 2025	CENTERBOOK PARTNERS LP	0.13%	308.08K	7.38M	182.74K	+145.80%
Sep 30, 2025	SWISS NATIONAL BANK	0.13%	306.49K	7.34M	4.3K	+1.42%
Sep 30, 2025	RHUMBLINE ADVISERS	0.12%	289.82K	6.94M	2.57K	+0.90%
Sep 30, 2025	RUSSELL INVESTMENTS GROUP, LTD.	0.12%	289.55K	6.93M	-38.63K	-11.77%
Sep 30, 2025	EXCHANGE TRADED CONCEPTS, LLC	0.11%	267.49K	6.41M	264.16K	+7,928.03%
Sep 30, 2025	UBS GROUP AG	0.1%	231.19K	5.54M	-535.11K	-69.83%
Sep 30, 2025	SEI INVESTMENTS CO	0.08%	200.52K	4.8M	-18.6K	-8.49%
Sep 30, 2025	TELOS CAPITAL MANAGEMENT, INC.	0.08%	189.86K	4.55M	-30.86K	-13.98%
Sep 30, 2025	HUDSON VALUE PARTNERS, LLC	0.08%	185.83K	4.45M	124	+0.07%
Sep 30, 2025	LINGOHR & PARTNER ASSET MANAGEMENT GMBH	0.07%	175K	4.19M	165K	+1,650.00%
Sep 30, 2025	COUNTRY CLUB BANK /GFN	0.07%	172.46K	3.94M	144	+0.08%
Sep 30, 2025	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	0.06%	150.35K	3.8M	-4.76K	-3.07%
Sep 30, 2025	PRUDENTIAL FINANCIAL INC	0.06%	147.2K	3.53M	-2.81K	-1.87%
Sep 30, 2025	NEW YORK STATE TEACHERS RETIREMENT SYSTEM	0.06%	140.92K	3.38M	3.48K	+2.53%
Sep 30, 2025	JPMORGAN CHASE & CO	0.04%	104.77K	2.51M	13.45K	+14.73%
Sep 30, 2025	GAMCO INVESTORS, INC. ET AL	0.04%	99.64K	2.39M	-9.03K	-8.31%
Sep 30, 2025	NORTH GROWTH MANAGEMENT LTD.	0.04%	97K	2.31M	0	0
Sep 30, 2025	LPL FINANCIAL LLC	0.04%	90.73K	2.17M	-5	-0.01%
Sep 30, 2025	ENVESTNET ASSET MANAGEMENT INC	0.04%	89.59K	2.15M	-7.2K	-7.43%
Sep 30, 2025	STATE OF NEW JERSEY COMMON PENSION FUND D	0.04%	87.64K	2.1M	-12.46K	-12.45%
Sep 30, 2025	ILLINOIS MUNICIPAL RETIREMENT FUND	0.03%	82.63K	1.98M	7.18K	+9.51%
Sep 30, 2025	PRIMECAP MANAGEMENT CO/CA/	4.9%	11.92M	285.45M	-112.07K	-0.93%
Sep 30, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.24%	3.01M	72.04M	7.08K	+0.24%
Sep 30, 2025	FIL LTD	0.64%	1.56M	37.34M	-508.18K	-24.58%
Sep 30, 2025	FREESTONE GROVE PARTNERS LP	0.84%	2.05M	49.14M	0	0
Sep 30, 2025	COMERICA BANK	0.13%	312.64K	7.49M	-49.22K	-13.60%
Sep 30, 2025	AMERIPRISE FINANCIAL INC	0.15%	355.95K	8.52B	13.08K	+3.82%
Sep 30, 2025	BANK OF NEW YORK MELLON CORP	0.36%	866.26K	20.75M	-1.94K	-0.22%
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.09%	2.65M	63.59M	141.02K	+5.61%
Sep 30, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.12%	2.73M	65.39M	-56.62K	-2.03%
Sep 30, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	2.14%	5.2M	124.6M	-258.06K	-4.73%
Sep 30, 2025	STATE STREET CORP	2.81%	6.83M	163.66M	-244.87K	-3.46%
Jun 30, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.23%	3M	70.85M	-74.64K	-2.43%
Jun 30, 2025	INVESCO LTD.	8.06%	19.58M	462.22M	2.39M	+13.88%
Jun 30, 2025	STATE STREET CORP	2.91%	7.08M	167.12M	501.9K	+7.63%
Jun 30, 2025	MILLENNIUM MANAGEMENT LLC	1.92%	4.67M	110.17M	2.65M	+131.94%
Jun 30, 2025	NORTHERN TRUST CORP	0.39%	941.03K	22.22M	86.61K	+10.14%
Jun 30, 2025	UBS ASSET MANAGEMENT AMERICAS INC	0.18%	430.54K	10.17M	157.26K	+57.54%
Jun 30, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	1%	2.44M	57.65M	48.7K	+2.04%
Jun 30, 2025	DISCOVERY CAPITAL MANAGEMENT, LLC / CT	0.95%	2.3M	54.28M	-331.8K	-12.61%
Jun 30, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.17%	422.98K	9.99M	-23.64K	-5.29%
Jun 30, 2025	POINT72 ASSET MANAGEMENT, L.P.	0.14%	350.63K	8.28M	350.63K	+100.00%
Jun 30, 2025	ROYCE & ASSOCIATES LP	0.14%	335K	7.91M	335K	+100.00%
Jun 30, 2025	AWH CAPITAL, L.P.	0.07%	165.25K	3.9M	122.75K	+288.82%
Jun 30, 2025	ANCORA ADVISORS, LLC	0.05%	132.2K	3.12M	63.43K	+92.24%
Jun 30, 2025	WINTON GROUP LTD	0.05%	112.42K	2.65M	-4.26K	-3.65%
Jun 30, 2025	SOVIERO ASSET MANAGEMENT, LP	0.05%	110K	2.6M	110K	+100.00%
Jun 30, 2025	GAMCO INVESTORS, INC. ET AL	0.04%	108.67K	2.57M	108.67K	+100.00%
Jun 30, 2025	STATE OF NEW JERSEY COMMON PENSION FUND D	0.04%	100.1K	2.36M	2.45K	+2.51%
Jun 30, 2025	NORTH GROWTH MANAGEMENT LTD.	0.04%	97K	2.3M	5K	+5.43%
Jun 30, 2025	VERITION FUND MANAGEMENT LLC	0.04%	92.48K	2.18M	-198.23K	-68.19%
Jun 30, 2025	STATE OF WISCONSIN INVESTMENT BOARD	0.04%	91.86K	2.17M	-3.86K	-4.03%
Jun 30, 2025	STATE OF ALASKA, DEPARTMENT OF REVENUE	0.04%	89.83K	2.12M	10.49K	+13.22%
Jun 30, 2025	ARVIN CAPITAL MANAGEMENT LP	0.88%	2.14M	50.51M	452.29K	+26.81%
Jun 30, 2025	683 CAPITAL MANAGEMENT, LLC	0.67%	1.63M	38.48M	617K	+60.91%
Jun 30, 2025	CACTI ASSET MANAGEMENT LLC	0.35%	848.95K	19.91M	14.5K	+1.74%
Jun 30, 2025	LOEWS CORP	0.19%	470K	11.1M	-102.68K	-17.93%
Jun 30, 2025	CRESTWOOD ADVISORS GROUP LLC	0.03%	81.77K	1.93M	1.22K	+1.51%
Jun 30, 2025	ILLINOIS MUNICIPAL RETIREMENT FUND	0.03%	75.45K	1.78M	8.95K	+13.45%
Jun 30, 2025	ALPINE GLOBAL MANAGEMENT, LLC	0.03%	75.06K	1.77M	-24.94K	-24.94%
Jun 30, 2025	MARSHALL WACE, LLP	0.03%	74.83K	1.77M	-72.52K	-49.22%
Jun 30, 2025	TREASURER OF THE STATE OF NORTH CAROLINA	0.03%	74.37K	1.76M	6.59K	+9.71%
Jun 30, 2025	LOUISIANA STATE EMPLOYEES RETIREMENT SYSTEM	0.03%	70.5K	1.66M	12.1K	+20.72%
Jun 30, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	2.25%	5.46M	128.93M	1.88M	+52.59%
Jun 30, 2025	FMR LLC	1.88%	4.57M	107.99M	164.98K	+3.74%
Jun 30, 2025	PRIMECAP MANAGEMENT CO/CA/	4.95%	12.03M	284.04M	1.97M	+19.57%
Jun 30, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.15%	2.79M	65.8M	-539.47K	-16.22%
Jun 30, 2025	MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.	0.57%	1.38M	32.58M	1.38M	+100.00%
Jun 30, 2025	RFG ADVISORY, LLC	0.04%	102.17K	2.41M	102.17K	+100.00%
Jun 30, 2025	MORGAN STANLEY	0.9%	2.18M	51.4M	84.37K	+4.03%
Jun 30, 2025	FIL LTD	0.85%	2.07M	48.81M	-142.11K	-6.43%
Jun 30, 2025	CENTERBOOK PARTNERS LP	0.05%	125.34K	2.96M	-289.23K	-69.77%
Jun 30, 2025	AQR CAPITAL MANAGEMENT LLC	0.14%	350.2K	8.27B	350.2K	+100.00%
Jun 30, 2025	ALLIANCEBERNSTEIN L.P.	0.14%	348.68K	8.23B	293.51K	+531.91%
Jun 30, 2025	GRIZZLYROCK CAPITAL, LLC	0.1%	253.36K	5.98M	89.14K	+54.28%
Jun 30, 2025	AROSA CAPITAL MANAGEMENT LP	0.1%	252.5K	5.96M	-154.4K	-37.95%
Jun 30, 2025	TELOS CAPITAL MANAGEMENT, INC.	0.09%	220.72K	5.21M	-35.46K	-13.84%
Jun 30, 2025	Y-INTERCEPT (HONG KONG) LTD	0.08%	198.73K	4.69M	198.73K	+100.00%
Jun 30, 2025	RAYMOND JAMES FINANCIAL INC	0.08%	189.81K	4.48M	9.24K	+5.12%
Jun 30, 2025	HUDSON VALUE PARTNERS, LLC	0.08%	185.7K	4.38M	-2.58K	-1.37%
Jun 30, 2025	COUNTRY CLUB BANK /GFN	0.07%	172.32K	4.04M	78.57K	+83.80%
Jun 30, 2025	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	0.07%	162.3K	3.83B	31.12K	+23.73%
Jun 30, 2025	WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	0.06%	155.1K	3.76M	3.3K	+2.18%
Jun 30, 2025	AMERICAN SECURITIES LLC	18.53%	45.03M	1.06B	1.13M	+2.58%
Jun 30, 2025	BLACKROCK, INC.	7.82%	19M	448.47M	746.09K	+4.09%
Jun 30, 2025	VAN ECK ASSOCIATES CORP	1.26%	3.07M	72.44M	464.59K	+17.84%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	1.03%	2.51M	59.35M	213.16K	+9.27%
Jun 30, 2025	FREESTONE GROVE PARTNERS LP	0.84%	2.05M	48.44M	887.02K	+76.15%
Jun 30, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.72%	1.75M	41.2M	195.86K	+12.64%
Jun 30, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.69%	1.69M	39.83M	65.78K	+4.06%
Jun 30, 2025	VOSS CAPITAL, LLC	0.58%	1.4M	33.05M	-820.71K	-36.96%
Jun 30, 2025	DIMENSIONAL FUND ADVISORS LP	0.55%	1.33M	31.51M	221.1K	+19.85%
Jun 30, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.21%	514.17K	12.14M	59.04K	+12.97%
Jun 30, 2025	CI INVESTMENTS INC.	0.19%	454.42K	10.73M	10.84K	+2.44%
Jun 30, 2025	ROYAL BANK OF CANADA	0.18%	443.2K	10.46M	-139K	-23.87%
Jun 30, 2025	NUVEEN, LLC	0.21%	516.57K	12.2M	228.77K	+79.49%
Jun 30, 2025	VIDENT ADVISORY, LLC	0.18%	432.17K	10.2M	139.31K	+47.57%
Jun 30, 2025	NORGES BANK	0.89%	2.16M	51.01M	2.16M	+100.00%
Jun 30, 2025	LOOMIS SAYLES & CO L P	0.44%	1.06M	25.01M	623.54K	+143.12%
Jun 30, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.41%	1M	23.76M	114.04K	+12.82%
Jun 30, 2025	BRIGHTLINE CAPITAL MANAGEMENT, LLC	0.41%	1M	23.61M	1M	+100.00%
Jun 30, 2025	AVENIR CORP	0.37%	895.35K	21.14M	-8.81K	-0.97%
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0.36%	868.27K	20.5M	-100.27K	-10.35%
Jun 30, 2025	BANK OF NEW YORK MELLON CORP	0.36%	868.21K	20.5M	107.7K	+14.16%
Jun 30, 2025	UBS GROUP AG	0.32%	766.3K	18.09M	-763.83K	-49.92%
Jun 30, 2025	PRINCIPAL FINANCIAL GROUP INC	0.31%	744.52K	17.58M	32.35K	+4.54%
Jun 30, 2025		0.21%	516.57K	12.2M	228.77K	+79.49%
Jun 30, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.21%	516.4K	12.19M	243.8K	+89.44%
Jun 30, 2025	VANGUARD GROUP INC	6.8%	16.53M	390.36M	191.27K	+1.17%
Jun 30, 2025	BW GESTAO DE INVESTIMENTOS LTDA.	0.29%	715.07K	16.88M	320.67K	+81.30%
Jun 30, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.29%	693.78K	16.38M	81.99K	+13.40%
Jun 30, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.27%	651.57K	15.38M	23.42K	+3.73%
Jun 30, 2025	KOPERNIK GLOBAL INVESTORS, LLC	0.26%	636.23K	15.02M	-441.27K	-40.95%
Jun 30, 2025	ENGINE CAPITAL MANAGEMENT, LP	0.26%	635.26K	15M	0	0
Jun 30, 2025	CSM ADVISORS, LLC	0.26%	633.05K	14.95M	-5.01K	-0.79%
Jun 30, 2025	MOORE CAPITAL MANAGEMENT, LP	0.25%	611.12K	14.43M	112.86K	+22.65%
Jun 30, 2025	CAPTION MANAGEMENT, LLC	0.24%	572.7K	13.52M	450.7K	+369.43%
Mar 31, 2025	INVESCO LTD.	7.07%	17.19M	312.88M	3.33M	+24.07%
Mar 31, 2025	MORGAN STANLEY	0.86%	2.09M	38.09M	610.33K	+41.17%
Mar 31, 2025	BLACKROCK, INC.	7.51%	18.25M	332.13M	1.47M	+8.79%
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	0.46%	1.11M	20.27M	-40.48K	-3.51%
Mar 31, 2025	ARVIN CAPITAL MANAGEMENT LP	0.3%	731.4K	13.31M	531.4K	+265.70%
Mar 31, 2025	KOPERNIK GLOBAL INVESTORS, LLC	0.44%	1.08M	19.61M	311.51K	+40.67%
Mar 31, 2025	FREESTONE GROVE PARTNERS LP	0.48%	1.16M	21.2M	1.16M	+100.00%
Mar 31, 2025	COOPER CREEK PARTNERS MANAGEMENT LLC	0.5%	1.22M	22.28M	-2.93M	-70.56%
Mar 31, 2025	THRIVENT FINANCIAL FOR LUTHERANS	0.54%	1.31M	23.82M	-303.17K	-18.81%
Mar 31, 2025	UBS GROUP AG	0.63%	1.53M	27.85M	398.39K	+35.20%
Mar 31, 2025	VOSS CAPITAL, LLC	0.91%	2.22M	40.42M	1.77M	+393.69%
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.95%	2.3M	41.87M	336.75K	+17.15%
Mar 31, 2025	ARISTOTLE CAPITAL BOSTON, LLC	0.18%	446.61K	8.13M	-30.37K	-6.37%
Mar 31, 2025	DAVIDSON KEMPNER CAPITAL MANAGEMENT LP	0.19%	450K	8.19M	450K	+100.00%
Mar 31, 2025	RUANE, CUNNIFF & GOLDFARB L.P.	0.98%	2.39M	43.55M	-43.26K	-1.78%
Mar 31, 2025	AMERICAN SECURITIES LLC	18.06%	43.89M	798.87B	0	0
Mar 31, 2025	PRINCIPAL FINANCIAL GROUP INC	0.29%	712.17K	12.96M	110.12K	+18.29%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0.4%	968.54K	17.63M	359.69K	+59.08%
Mar 31, 2025	GOLDMAN SACHS GROUP INC	0.18%	447.58K	8.15M	175.35K	+64.41%
Mar 31, 2025	MOORE CAPITAL MANAGEMENT, LP	0.2%	498.26K	9.07M	-93.93K	-15.86%
Mar 31, 2025	LOEWS CORP	0.24%	572.68K	10.42M	572.68K	+100.00%
Mar 31, 2025	ROYAL BANK OF CANADA	0.24%	582.2K	10.6M	-36.71K	-5.93%
Mar 31, 2025	BANK OF NEW YORK MELLON CORP	0.31%	760.51K	13.84M	109.2K	+16.77%
Mar 31, 2025	CACTI ASSET MANAGEMENT LLC	0.34%	834.44K	15.08M	9.98K	+1.21%
Mar 31, 2025	NORTHERN TRUST CORP	0.35%	854.42K	15.55M	12.2K	+1.45%
Mar 31, 2025	PENN CAPITAL MANAGEMENT COMPANY, LLC	0.37%	889.43K	16.23M	443.13K	+99.29%
Mar 31, 2025	AVENIR CORP	0.37%	904.16K	16.46M	710.69K	+367.34%
Mar 31, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.64%	1.55M	28.19M	284.9K	+22.54%
Mar 31, 2025	PUBLIC SECTOR PENSION INVESTMENT BOARD	0.19%	455.13K	8.28M	145.94K	+47.20%
Mar 31, 2025	ENGINE CAPITAL MANAGEMENT, LP	0.26%	635.26K	11.56M	13.86K	+2.23%
Mar 31, 2025	CSM ADVISORS, LLC	0.26%	638.06K	11.61M	-1K	-0.16%
Mar 31, 2025	BALYASNY ASSET MANAGEMENT L.P.	0.77%	1.88M	34.23M	1.88M	+100.00%
Mar 31, 2025	MILLENNIUM MANAGEMENT LLC	0.83%	2.01M	36.61M	815.22K	+68.13%
Mar 31, 2025	FIL LTD	0.91%	2.21M	40.21M	415.76K	+23.18%
Mar 31, 2025	VAN ECK ASSOCIATES CORP	1.07%	2.6M	47.39M	1.47M	+129.94%
Mar 31, 2025	CITADEL ADVISORS LLC	1.2%	2.93M	53.26M	2.53M	+641.22%
Mar 31, 2025	KOVITZ INVESTMENT GROUP PARTNERS, LLC	1.27%	3.08M	55.97M	-11.71M	-79.20%
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.22%	533.57K	9.71M	-342.79K	-39.12%
Mar 31, 2025	JANE STREET GROUP, LLC	0.25%	601.76K	10.95M	574.27K	+2,089.01%
Mar 31, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.25%	611.79K	11.14M	232.84K	+61.44%
Mar 31, 2025	VOYA INVESTMENT MANAGEMENT LLC	0.26%	628.15K	11.43M	224.04K	+55.44%
Mar 31, 2025	683 CAPITAL MANAGEMENT, LLC	0.42%	1.01M	18.44M	588K	+138.35%
Mar 31, 2025	THOMPSON SIEGEL & WALMSLEY LLC	1.37%	3.33M	60.54M	1.38M	+70.70%
Mar 31, 2025	FRONTIER CAPITAL MANAGEMENT CO LLC	1.47%	3.58M	65.13M	3.58M	+100.00%
Mar 31, 2025	FMR LLC	1.81%	4.41M	80.24M	2.01M	+84.09%
Mar 31, 2025	STATE STREET CORP	2.71%	6.58M	119.69M	122.1K	+1.89%
Mar 31, 2025	PRIMECAP MANAGEMENT CO/CA/	4.14%	10.06M	183.12M	3.65M	+56.86%
Mar 31, 2025	VANGUARD GROUP INC	6.73%	16.34M	297.43M	-199.89K	-1.21%

Insiders

Insiders	Designation	Shares Held
DEMETRIOU STEVEN J.	Executive Chair	620.89K
LOUGHRAN BARBARA	director	4.6K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Feb 18, 2025	LOUGHRAN BARBARA	PURCHASE	21.23	4.6K	97.64K	4.6K
Feb 12, 2025	DEMETRIOU STEVEN J.	PURCHASE	20.81	100K	2.08M	620.89K

AMTM Stock Ownership Breakdown

Amentum

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions

Stock Outstanding Shares

Market Insider

Institutional Ownership

Insiders

Buying/Selling by Insiders

Frequently Asked Questions