How many institutions own ATNM 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 ATNM shares is 98, representing 29.7% of the company's common stock.

Who are the major shareholders selling Actinium Pharmaceuticals, Inc. stock?

VANGUARD GROUP INC, in the last quarter, reduced its stake in ATNM by -2.82% restricting it's holding to 1.57 million shares of worth nearly $2.53M. COREBRIDGE FINANCIAL, INC. also lessened -1.46% of the ATNM shares from its portfolio, reducing its holding to 15.41 thousand shares of worth $24.80K. NORTHERN TRUST CORP also shunned ATNM shares holding by -9.39% last quarter which brought its holding to 228.27 thousand shares worth $367.52K.

Investors who are buying ATNM stock?

As per its latest 13F filing, GEODE CAPITAL MANAGEMENT, LLC increased its stake in ATNM by 3.48% in the last quarter. The institutional holder raised its holding to 711.8 thousand shares having worth more than $1.15M. STATE STREET CORP also added 3.89% more shares of ATNM to its portfolio, raising its holding to 645.22 thousand shares of worth $1.04M. UBS GROUP AG also increased its ATNM shares holding by 346.02% which brought its holding to 396.14 thousand shares worth $637.78K.

ATNM's major insiders: who are they?

The insider with the most stakes in ATNM is Memorial Sloan-Kettering Cancer Center , 10 percent owner at the company. Additionally, ATNM stock is highly held by Chairman & CEO SETH SANDESH and Principal Financial Officer O'Loughlin Steve among others.

Did an insider recently sell ATNM stock?

Company executives, directors, and other insiders own 1.79% percent of Actinium Pharmaceuticals, Inc.'s stock. Within the last six months, there have been 0 transaction(s) in which ATNM insiders have sold stock, totaling 0 shares. Insiders that have sold shares include MEMORIAL SLOAN-KETTERING CANCER CENTER.

Which insider recently purchased ATNM stock?

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

How much of ATNM does insiders own?

Around 0 Actinium Pharmaceuticals, Inc. shares are held by insiders, which represents about 1.79% of ATNM stock.

Who is the insider with the largest stake?

ATNM 10 percent owner, Memorial Sloan-Kettering Cancer Center holds the largest portfolio of the company's shares. ATNM shares owned by Memorial total nearly 4.71 million.

Which institution holds the most shares in ATNM?

SEI INVESTMENTS CO is the largest institutional owner in ATNM which holds 49.21 thousand shares worth $79.24K or 0.16% of the total ATNM shares outstanding followed by NORTH STAR ASSET MANAGEMENT INC with ownership of 10 thousand shares representing 0.03% of the ATNM ownership. VANGUARD GROUP INC is the third largest stakeholder with 1.57 million shares or 5.04% of the ownership worth more than $2.53M.

Is Actinium Pharmaceuticals, 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 ATNM is concerned, it is a stock which is optionable.

Is there a short position on ATNM's shares?

Number of ATNM shares short is 1.33M. 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 ATNM shares are there?

As of today, 31.20M shares of ATNM are outstanding.

Is there many float in ATNM 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, ATNM has 31.04M shares in float.

ATNM 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 ATNM is 2.78.

Actinium Pharmaceuticals (ATNM) 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 Shares4.25

Short Percent Of Float4.26

Shares Outstanding31.20M

Shares Float31.04M

Shares Short1.33M

Short Ratio2.78

4.26%

Short % of Float

4.25%

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

1.79% Percentage of Shares held by All Insiders

29.7% Percentage of Shares held by All Institutions

30.25% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 29.7% of ATNM shares are held by financial institutions. SEI INVESTMENTS CO is the top corporate investor, holding 49.21K shares valued at $79.24K. A 0.16% stake in Actinium Pharmaceuticals, Inc. is owned by the company. NORTH STAR ASSET MANAGEMENT INC owns 10K shares valued at $16.10K, which translates its holding of 0.03% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Mar 31, 2025	SEI INVESTMENTS CO	0.16%	49.21K	79.24K	0	0
Mar 31, 2025	NORTH STAR ASSET MANAGEMENT INC	0.03%	10K	16.1K	0	0
Mar 31, 2025	VANGUARD GROUP INC	5.04%	1.57M	2.53M	-45.61K	-2.82%
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	2.28%	711.8K	1.15M	23.95K	+3.48%
Mar 31, 2025	STATE STREET CORP	2.07%	645.22K	1.04M	24.14K	+3.89%
Mar 31, 2025	UBS GROUP AG	1.27%	396.14K	637.78K	307.32K	+346.02%
Mar 31, 2025	CREATIVE FINANCIAL DESIGNS INC /ADV	0.34%	105.63K	170.07K	14.62K	+16.07%
Mar 31, 2025	COREBRIDGE FINANCIAL, INC.	0.05%	15.41K	24.8K	-229	-1.46%
Mar 31, 2025	LOS ANGELES CAPITAL MANAGEMENT LLC	0.75%	233.25K	375.53K	19.3K	+9.02%
Mar 31, 2025	NORTHERN TRUST CORP	0.73%	228.27K	367.52K	-23.66K	-9.39%
Mar 31, 2025	GAGNON SECURITIES LLC	0.73%	226.62K	364.86K	226.62K	+100.00%
Mar 31, 2025	INVESCO LTD.	0.49%	153.56K	247.22K	141.13K	+1,135.86%
Mar 31, 2025	DEUTSCHE BANK AG\	0.39%	123.13K	198.25K	0	0
Mar 31, 2025		0.03%	7.92K	12.74K	0	0
Mar 31, 2025	INTREPID FINANCIAL PLANNING GROUP LLC	0.05%	14.5K	23.35K	500	+3.57%
Mar 31, 2025	AVANTAX ADVISORY SERVICES, INC.	0.05%	14.49K	23.33K	14.49K	+100.00%
Mar 31, 2025	ALLIANCEBERNSTEIN L.P.	0.04%	13.89K	22.36K	0	0
Mar 31, 2025	PICTON MAHONEY ASSET MANAGEMENT	0.04%	12.99K	21K	7.03K	+117.71%
Mar 31, 2025	NEW YORK STATE COMMON RETIREMENT FUND	0.02%	6.74K	11K	0	0
Mar 31, 2025	BLACKROCK, INC.	6.24%	1.95M	3.13M	-25.1K	-1.27%
Mar 31, 2025	ACADIAN ASSET MANAGEMENT LLC	1.62%	504.04K	810K	4.78K	+0.96%
Mar 31, 2025	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.31%	97.6K	157.14K	25.51K	+35.39%
Mar 31, 2025	GOLDMAN SACHS GROUP INC	0.25%	76.81K	123.67K	-58.49K	-43.23%
Mar 31, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.24%	75K	120.75K	-700	-0.92%
Mar 31, 2025	MORGAN STANLEY	0.21%	65.76K	105.87K	-150.38K	-69.58%
Mar 31, 2025	BANK OF NEW YORK MELLON CORP	0.21%	65.31K	105.15K	0	0
Mar 31, 2025	CALLAN FAMILY OFFICE, LLC	0.08%	23.6K	38K	23.6K	+100.00%
Mar 31, 2025	CITIGROUP INC	0.07%	22.69K	36.54K	-2.61K	-10.33%
Mar 31, 2025	JPMORGAN CHASE & CO	0.07%	21.12K	34.01K	-102.71K	-82.94%
Mar 31, 2025	WELLS FARGO & COMPANY/MN	0.07%	20.33K	32.73K	332	+1.66%
Mar 31, 2025	RUSSELL INVESTMENTS GROUP, LTD.	0.05%	14.61K	23.52K	10.44K	+250.00%
Mar 31, 2025	PRICE T ROWE ASSOCIATES INC /MD/	0.04%	12.79K	21K	12.79K	+100.00%
Mar 31, 2025	FMR LLC	0.04%	12.58K	20.25K	7.84K	+165.38%
Mar 31, 2025	MIRAE ASSET GLOBAL ETFS HOLDINGS LTD.	0.06%	17.85K	28.74K	780	+4.57%
Mar 31, 2025	AQR CAPITAL MANAGEMENT LLC	0.2%	63.25K	101.83K	46.55K	+278.65%
Mar 31, 2025	RENAISSANCE TECHNOLOGIES LLC	0.18%	57.6K	92.74K	-132.8K	-69.75%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0.17%	52.56K	84.63K	-26.2K	-33.27%
Mar 31, 2025	RHUMBLINE ADVISERS	0.14%	42.28K	68.07K	1.56K	+3.84%
Mar 31, 2025	CITADEL ADVISORS LLC	0.13%	41.2K	66.33K	-4K	-8.85%
Mar 31, 2025	BARCLAYS PLC	0.13%	39.87K	64K	-9.99K	-20.03%
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	0.11%	34.92K	56.23K	0	0
Mar 31, 2025	AM INVESTMENT STRATEGIES LLC	0.1%	30.87K	50K	16.45K	+114.06%
Mar 31, 2025	VONTOBEL HOLDING LTD.	0.1%	30K	48.3K	5K	+20.00%
Mar 31, 2025	INTECH INVESTMENT MANAGEMENT LLC	0.04%	12.34K	19.86K	-1.86K	-13.11%
Mar 31, 2025	PROSPECT FINANCIAL SERVICES LLC	0.04%	12K	19.32K	-400	-3.23%
Mar 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.03%	10.7K	17.23K	-3.7K	-25.69%
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	8.35K	13.44K	-1.2K	-12.55%
Mar 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0.03%	7.93K	12.76K	1.5K	+23.35%
Jun 30, 2020	TCI WEALTH ADVISORS, INC.	0%	3K	1K	3K	+100.00%
Jun 30, 2020	OPPENHEIMER & CO INC	0%	14K	5K	0	0
Jun 30, 2020	CETERA ADVISOR NETWORKS LLC	0%	5K	2K	5K	+100.00%
Jun 30, 2020	NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO	0%	3.23K	1K	0	0
Jun 30, 2020	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	15.3K	5K	15.3K	+100.00%
Jun 30, 2020	VALLEY NATIONAL ADVISERS INC	0%	2K	1K	2K	+100.00%
Jun 30, 2020	TRUST CO OF VERMONT	0%	1.5K	1K	1.5K	+100.00%
Jun 30, 2020	VANGUARD GROUP INC	4.34%	14.83M	5.21M	10.28M	+225.88%
Jun 30, 2020	BLACKROCK INC.	2.64%	9.02M	3.17M	7.01M	+349.37%
Jun 30, 2020	SIO CAPITAL MANAGEMENT, LLC	2.39%	8.15M	2.86M	8.15M	+100.00%
Jun 30, 2020	TWO SIGMA SECURITIES, LLC	0.01%	37.25K	13K	23.53K	+171.59%
Jun 30, 2020	ROCKEFELLER CAPITAL MANAGEMENT L.P.	0.01%	35.44K	12K	10.44K	+41.75%
Jun 30, 2020	BRYN MAWR TRUST CO	0%	10K	4K	0	0
Jun 30, 2020	PRIVATE ADVISOR GROUP, LLC	0%	10K	4K	10K	+100.00%
Jun 30, 2020	IFP ADVISORS, INC	0%	4K	1K	0	0
Jun 30, 2020	RENAISSANCE TECHNOLOGIES LLC	1.06%	3.61M	1.27M	2.42M	+203.97%
Jun 30, 2020	J. GOLDMAN & CO LP	0.63%	2.15M	756K	2.15M	+100.00%
Jun 30, 2020	NORTHERN TRUST CORP	0.25%	846.81K	298K	529.77K	+167.10%
Jun 30, 2020	RUSSELL INVESTMENTS GROUP, LTD.	0.22%	742.7K	261K	742.7K	+100.00%
Jun 30, 2020	VIRTU FINANCIAL LLC	0.2%	668.6K	235K	668.6K	+100.00%
Jun 30, 2020	PNC FINANCIAL SERVICES GROUP, INC.	0.06%	198.48K	70K	0	0
Jun 30, 2020	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0.02%	80.22K	29K	0	0
Jun 30, 2020	UBS GROUP AG	0.02%	73.11K	26K	-57.71K	-44.12%
Jun 30, 2020	INTRUST BANK NA	0.01%	40K	14K	0	0
Jun 30, 2020	HARTFORD FINANCIAL MANAGEMENT INC.	0.01%	18K	6K	0	0
Jun 30, 2020	WELLS FARGO & COMPANY/MN	0%	15.64K	5K	8	+0.05%
Jun 30, 2020	SUMMIT FINANCIAL WEALTH ADVISORS, LLC	0%	14K	5K	0	0
Jun 30, 2020	AMERIPRISE FINANCIAL INC	0%	13.08K	5K	13.08K	+100.00%
Jun 30, 2020	TRUVESTMENTS CAPITAL LLC	0%	6.32K	2K	6.32K	+100.00%
Jun 30, 2020	ALLWORTH FINANCIAL LP	0%	3.6K	1K	3.6K	+100.00%
Jun 30, 2020	CONSONANCE CAPITAL MANAGEMENT LP	10.84%	37M	13.01M	37M	+100.00%
Jun 30, 2020	GEODE CAPITAL MANAGEMENT, LLC	0.76%	2.61M	918K	2.01M	+333.12%
Jun 30, 2020	SABBY MANAGEMENT, LLC	0.28%	972.29K	342K	350.45K	+56.36%
Jun 30, 2020	CITADEL ADVISORS LLC	0.19%	642.96K	226K	574.13K	+834.09%
Jun 30, 2020	SQUAREPOINT OPS LLC	0.14%	485.65K	171K	485.65K	+100.00%
Jun 30, 2020	BANK JULIUS BAER & CO. LTD, ZURICH	0.1%	344.47K	120K	103.1K	+42.72%
Jun 30, 2020	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.08%	275K	97K	275K	+100.00%
Jun 30, 2020	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	0.04%	151.5K	53K	151.5K	+100.00%
Jun 30, 2020	ARDSLEY ADVISORY PARTNERS LP	0.04%	130K	46K	55K	+73.33%
Jun 30, 2020	OXFORD FINANCIAL GROUP LTD	0.03%	107.2K	38K	107.2K	+100.00%
Jun 30, 2020	ETRADE CAPITAL MANAGEMENT LLC	0.02%	80.2K	28K	80.2K	+100.00%
Jun 30, 2020	ADVISOR GROUP HOLDINGS, INC.	0.02%	70.03K	25K	5K	+7.69%
Jun 30, 2020	SUMMIT X, LLC	0.02%	68.2K	24K	15.7K	+29.90%
Jun 30, 2020	D.A. DAVIDSON & CO.	0.01%	49.5K	17K	9K	+22.22%
Jun 30, 2020	BARCLAYS PLC	0.01%	47.49K	18K	1.8K	+3.93%
Jun 30, 2020	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM	0.01%	40K	14K	0	0
Jun 30, 2020	FCG ADVISORS, LLC	0.01%	37.7K	13K	0	0
Jun 30, 2020	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	34.81K	12K	34.81K	+100.00%
Jun 30, 2020	MORGAN STANLEY	0.01%	32.68K	11K	17.06K	+109.18%
Jun 30, 2020	LAIDLAW WEALTH MANAGEMENT LLC	0.01%	28K	10K	28K	+100.00%
Jun 30, 2020	DOWLING & YAHNKE LLC	0.01%	22.87K	8K	0	0
Jun 30, 2020	HAP TRADING, LLC	0%	15.6K	-	15.6K	+100.00%

Insiders

Among the ATNM insiders holding of 1.79% of the stake in company, MEMORIAL SLOAN-KETTERING CANCER CENTER, 10 percent owner, holds the largest shares of 4.71M. SETH SANDESH, Chairman & CEO, is the second largest ATNM insider with ownership of 153.33K shares. O'LOUGHLIN STEVE, Principal Financial Officer, stands third with possession of 35.5K shares of that stake.

Insiders	Designation	Shares Held
MEMORIAL SLOAN-KETTERING CANCER CENTER	10 percent owner	4.71M
SETH SANDESH	Chairman & CEO	153.33K
O'LOUGHLIN STEVE	Principal Financial Officer	35.5K
SHETTY AJIT	director	22.73K
RAY NITYA G.	Executive Vice President	10K
LUDWIG DALE L.	Chief Scientific Officer	10K
BERGER MARK STANLEY	Chief Medical Officer	5K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Dec 10, 2018	SETH SANDESH	PURCHASE	0.44	10K	4.37K	153.33K
Dec 10, 2018	O'LOUGHLIN STEVE	PURCHASE	0.43	10K	4.35K	35.5K
Nov 19, 2018	LUDWIG DALE L.	PURCHASE	0.45	10K	4.5K	10K
Jul 17, 2018	SETH SANDESH	PURCHASE	0.79	10K	7.9K	143.33K
Jun 15, 2018	O'LOUGHLIN STEVE	PURCHASE	0.50	12K	6K	25.5K
Apr 19, 2018	SETH SANDESH	PURCHASE	0.38	5K	1.9K	133.33K
Feb 28, 2018	SHETTY AJIT	PURCHASE	0.43	22.73K	9.77K	22.73K
Aug 02, 2017	SETH SANDESH	PURCHASE	0.75	33.33K	25K	75.83K
Aug 02, 2017	RAY NITYA G.	PURCHASE	0.75	10K	7.5K	10K
Jun 15, 2017	O'LOUGHLIN STEVE	PURCHASE	1.17	3.5K	4.1K	3.5K
Jun 15, 2017	BERGER MARK STANLEY	PURCHASE	1.11	5K	5.55K	5K
Jun 15, 2017	SETH SANDESH	PURCHASE	1.17	2.5K	2.93K	37.5K
Dec 30, 2016	SETH SANDESH	PURCHASE	0.88	5K	4.4K	35K
Dec 12, 2016	SETH SANDESH	PURCHASE	0.98	5K	4.9K	30K
Aug 31, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.87	14.17K	26.49K	4.71M
Aug 30, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.82	100	182	4.85M
Aug 29, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.72	12.5K	21.5K	4.9M
Aug 26, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.71	12K	20.52K	4.93M
Aug 16, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.73	400	690	4.95M
Aug 15, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.72	4.44K	7.64K	4.96M
Jul 12, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.81	100	181	4.96M
Jul 11, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.80	800	1.44K	4.97M
Jul 08, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.80	21.19K	38.14K	4.97M
Jul 06, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.80	10.5K	18.9K	4.99M
Jul 05, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.83	4.34K	7.94K	5M
Jul 01, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.91	300	573	5.01M
Jun 30, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.82	3.35K	6.1K	5.14M
Jun 15, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.90	33.62K	63.88K	5.16M
Jun 02, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	2.02	6.79K	13.72K	5.19M
Jun 01, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	2.18	200	436	5.21M
May 31, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.95	6.76K	13.17K	5.25M
May 26, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.94	200	387	5.38M
May 25, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	1.92	100	192	5.42M
Apr 22, 2016	MEMORIAL SLOAN-KETTERING CANCER CENTER	SALE	2.08	1K	2.08K	5.48M

Frequently Asked Questions