How many institutions own AMS 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 AMS shares is 21, representing 15% of the company's common stock.

Who are the major shareholders selling American Shared Hospital Services stock?

GEODE CAPITAL MANAGEMENT, LLC, in the last quarter, reduced its stake in AMS by -18.69% restricting it's holding to 26.5 thousand shares of worth nearly $41.89K. BRIDGEWAY CAPITAL MANAGEMENT, LLC also lessened -67.93% of the AMS shares from its portfolio, reducing its holding to 29.12 thousand shares of worth $46.02K. CITADEL ADVISORS LLC also shunned AMS shares holding by -100% last quarter which brought its holding to 0 shares worth -.

Investors who are buying AMS stock?

As per its latest 13F filing, MERCER GLOBAL ADVISORS INC /ADV increased its stake in AMS by 100% in the last quarter. The institutional holder raised its holding to 1.17 thousand shares having worth more than $1.84K. CITIGROUP INC also added 100% more shares of AMS to its portfolio, raising its holding to 454 shares of worth $717.00. CAITONG INTERNATIONAL ASSET MANAGEMENT CO., LTD also increased its AMS shares holding by 100% which brought its holding to 107 shares worth $169.00.

AMS's major insiders: who are they?

The insider with the most stakes in AMS is BATES ERNEST A , Chairman and CEO at the company. Additionally, AMS stock is highly held by Executive Chairman Stachowiak Raymond C and director RUFFLE JOHN F among others.

Did an insider recently sell AMS stock?

Company executives, directors, and other insiders own 34.85% percent of American Shared Hospital Services's stock. Within the last six months, there have been 0 transaction(s) in which AMS insiders have sold stock, totaling 0 shares. Insiders that have sold shares include TROTMAN STANLEY S JR, TAGAWA CRAIG KENJI, and BATES ERNEST A.

Which insider recently purchased AMS stock?

There have been 1 transaction(s) during the past 6-months in which American Shared Hospital Services insiders have bought stock, totalling 586468 shares

How much of AMS does insiders own?

Around 586.47K American Shared Hospital Services shares are held by insiders, which represents about 34.85% of AMS stock.

Who is the insider with the largest stake?

AMS Chairman and CEO, BATES ERNEST A holds the largest portfolio of the company's shares. AMS shares owned by BATES total nearly 645.15 thousand.

Which institution holds the most shares in AMS?

GEODE CAPITAL MANAGEMENT, LLC is the largest institutional owner in AMS which holds 26.5 thousand shares worth $41.89K or 0.39% of the total AMS shares outstanding followed by BRIDGEWAY CAPITAL MANAGEMENT, LLC with ownership of 29.12 thousand shares representing 0.42% of the AMS ownership. STATE STREET CORP is the third largest stakeholder with 12.1 thousand shares or 0.18% of the ownership worth more than $19.12K.

Is American Shared Hospital Services 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 AMS is concerned, it is a stock which is not optionable.

Is there a short position on AMS's shares?

Number of AMS shares short is 11.62K. 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 AMS shares are there?

As of today, 6.65M shares of AMS are outstanding.

Is there many float in AMS 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, AMS has 3.86M shares in float.

AMS 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 AMS is 0.78.

American Shared Hospital Services (AMS) 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

OptionableNo

Short Percent Of Outstanding Shares0.17

Short Percent Of Float0.23

Shares Outstanding6.65M

Shares Float3.86M

Shares Short11.62K

Short Ratio0.78

0.23%

Short % of Float

0.17%

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

34.85% Percentage of Shares held by All Insiders

15% Percentage of Shares held by All Institutions

23.03% Percentage of Float held by Institutions

Number of Institutions Holding Shares

Institutional Ownership

About 15% of AMS shares are held by financial institutions. GEODE CAPITAL MANAGEMENT, LLC is the top corporate investor, holding 26.5K shares valued at $41.89K. A 0.39% stake in American Shared Hospital Services is owned by the company. BRIDGEWAY CAPITAL MANAGEMENT, LLC owns 29.12K shares valued at $46.02K, which translates its holding of 0.42% of the stake in the company.

Date	Holder	% Stake	Shares Held	Total Value ($)	Shares	% Change in Portfolio
Jun 30, 2026	GEODE CAPITAL MANAGEMENT, LLC	0.39%	26.5K	41.89K	-6.09K	-18.69%
Jun 30, 2026	BRIDGEWAY CAPITAL MANAGEMENT, LLC	0.42%	29.12K	46.02K	-61.7K	-67.93%
Jun 30, 2026	STATE STREET CORP	0.18%	12.1K	19.12K	0	0
Jun 30, 2026	EMPOWERED FUNDS, LLC	0.17%	11.92K	18.84K	0	0
Jun 30, 2026	MORGAN STANLEY	0.09%	5.86K	9.26K	0	0
Jun 30, 2026	MERCER GLOBAL ADVISORS INC /ADV	0.02%	1.17K	1.84K	1.17K	+100.00%
Jun 30, 2026	CITIGROUP INC	0.01%	454	717	454	+100.00%
Jun 30, 2026	CAITONG INTERNATIONAL ASSET MANAGEMENT CO., LTD	0%	107	169	107	+100.00%
Jun 30, 2026	JONES FINANCIAL COMPANIES LLLP	0%	100	161	0	0
Jun 30, 2026	BARCLAYS PLC	0%	82	130	82	+100.00%
Jun 30, 2026	CITADEL ADVISORS LLC	0%	0	-	-28.56K	-100.00%
Jun 30, 2026	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0%	0	-	-42.31K	-100.00%
Jun 30, 2026	DRW SECURITIES, LLC	0%	0	-	-32.89K	-100.00%
Jun 30, 2026	TOWER RESEARCH CAPITAL LLC (TRC)	0%	0	-	-2.81K	-100.00%
Jun 30, 2026	CI PRIVATE WEALTH, LLC	0%	0	-	-160.56K	-100.00%
Jun 30, 2026	NEWEDGE ADVISORS, LLC	0.43%	29.73K	46.97K	0	0
Jun 30, 2026	JAMES INVESTMENT RESEARCH INC	0.43%	29.73K	46.97K	0	0
Jun 30, 2026	VANGUARD CAPITAL MANAGEMENT LLC	0.81%	55.66K	87.95K	-98.08K	-63.79%
Jun 30, 2026	RENAISSANCE TECHNOLOGIES LLC	0.84%	57.7K	91.16K	8.5K	+17.27%
Jun 30, 2026	LPL FINANCIAL LLC	1.18%	81.39K	128.59K	5.02K	+6.57%
Jun 30, 2026	DIMENSIONAL FUND ADVISORS LP	1.49%	102.14K	161.38K	-102.98K	-50.20%
Jun 30, 2026	UBS GROUP AG	0.27%	18.4K	29.06K	18.2K	+9,097.50%
Jun 30, 2026	XTX TOPCO LTD	0.28%	19.11K	30.19K	19.11K	+100.00%
Jun 30, 2026	VANGUARD FIDUCIARY TRUST CO	0.37%	25.36K	40.07K	-2.04K	-7.45%
Mar 31, 2026		2.29%	153.74K	222.92K	153.74K	+100.00%
Mar 31, 2026	TOWER RESEARCH CAPITAL LLC (TRC)	0.04%	2.81K	4.08K	876	+45.20%
Mar 31, 2026	DRW SECURITIES, LLC	0.49%	32.89K	47.69K	-17.59K	-34.85%
Mar 31, 2026	STATE STREET CORP	0.18%	12.1K	17.55K	0	0
Mar 31, 2026	CITADEL ADVISORS LLC	0.42%	28.56K	41.41K	28.56K	+100.00%
Mar 31, 2026	GEODE CAPITAL MANAGEMENT, LLC	0.48%	32.59K	47.27K	-77	-0.24%
Mar 31, 2026	CITIGROUP INC	0%	0	-	-142	-100.00%
Mar 31, 2026	DIMENSIONAL FUND ADVISORS LP	3.05%	205.12K	297.42K	-1.29K	-0.63%
Mar 31, 2026	VANGUARD CAPITAL MANAGEMENT LLC	2.29%	153.74K	222.92K	153.74K	+100.00%
Mar 31, 2026	NEWEDGE ADVISORS, LLC	0.44%	29.73K	43.1K	0	0
Mar 31, 2026	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.63%	42.31K	61.36K	14.94K	+54.59%
Mar 31, 2026	BRIDGEWAY CAPITAL MANAGEMENT, LLC	1.35%	90.82K	131.69K	-3.3K	-3.51%
Mar 31, 2026	CI PRIVATE WEALTH, LLC	2.39%	160.56K	232.81K	0	0
Mar 31, 2026	UBS GROUP AG	0%	200	290	200	+100.00%
Mar 31, 2026	MORGAN STANLEY	0.09%	5.86K	8.49K	-450	-7.13%
Mar 31, 2026	EMPOWERED FUNDS, LLC	0.18%	11.92K	17.29K	0	0
Mar 31, 2026	RENAISSANCE TECHNOLOGIES LLC	0.73%	49.2K	71.34K	-200	-0.40%
Mar 31, 2026	LPL FINANCIAL LLC	1.14%	76.37K	110.73K	76.37K	+100.00%
Mar 31, 2026	JONES FINANCIAL COMPANIES LLLP	0%	100	181	0	0
Mar 31, 2026	BANK OF AMERICA CORP /DE/	0%	0	-	-60	-100.00%
Mar 31, 2026	VANGUARD FIDUCIARY TRUST CO	0.41%	27.41K	39.74K	27.41K	+100.00%
Mar 31, 2026	JAMES INVESTMENT RESEARCH INC	0.44%	29.73K	43.1K	0	0
Dec 31, 2025	ACADIAN ASSET MANAGEMENT LLC	0%	0	-	-6.2K	-100.00%
Dec 31, 2025	FARTHER FINANCE ADVISORS, LLC	0%	0	-	-502	-100.00%
Dec 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	0	-	-300	-100.00%
Dec 31, 2025	UBS GROUP AG	0%	0	-	-50	-100.00%
Dec 31, 2025	JPMORGAN CHASE & CO	0%	0	-	-7	-100.00%
Dec 31, 2025	BANK OF AMERICA CORP /DE/	0%	60	126	-5	-7.69%
Dec 31, 2025	JONES FINANCIAL COMPANIES LLLP	0%	100	211	0	0
Dec 31, 2025	CITIGROUP INC	0%	142	300	142	+100.00%
Dec 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	1.94K	4.09K	283	+17.10%
Dec 31, 2025	JAMES INVESTMENT RESEARCH INC	0.45%	29.73K	62.72K	0	0
Dec 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.5%	32.67K	68.95K	0	0
Dec 31, 2025	CI PRIVATE WEALTH, LLC	2.44%	160.56K	338.78K	0	0
Dec 31, 2025	STATE STREET CORP	0.18%	12.1K	25.53K	0	0
Dec 31, 2025	MORGAN STANLEY	0.1%	6.31K	13.31K	-502	-7.37%
Dec 31, 2025	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.42%	27.37K	57.75K	27.37K	+100.00%
Dec 31, 2025	NEWEDGE ADVISORS, LLC	0.45%	29.73K	62.72K	0	0
Dec 31, 2025	BARCLAYS PLC	0%	0	-	-20	-100.00%
Dec 31, 2025	EMPOWERED FUNDS, LLC	0.18%	11.92K	25.16K	0	0
Dec 31, 2025	RENAISSANCE TECHNOLOGIES LLC	0.75%	49.4K	104.23K	-400	-0.80%
Dec 31, 2025	DRW SECURITIES, LLC	0.77%	50.48K	106.51K	50.48K	+100.00%
Dec 31, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	1.43%	94.12K	198.59K	-2.57K	-2.66%
Dec 31, 2025	VANGUARD GROUP INC	2.75%	181.14K	382.21K	0	0
Dec 31, 2025	DIMENSIONAL FUND ADVISORS LP	3.14%	206.41K	435.53K	-3.55K	-1.69%
Sep 30, 2025	RAYMOND JAMES FINANCIAL INC	0%	0	-	-3.9K	-100.00%
Sep 30, 2025	DIMENSIONAL FUND ADVISORS LP	3.19%	209.96K	587.89K	0	0
Sep 30, 2025	EMPOWERED FUNDS, LLC	0.18%	11.92K	33.39K	0	0
Sep 30, 2025	STATE STREET CORP	0.18%	12.1K	33.88K	0	0
Sep 30, 2025	NEWEDGE ADVISORS, LLC	0.45%	29.73K	83.23K	0	0
Sep 30, 2025	BANK OF AMERICA CORP /DE/	0%	65	182	-7	-9.72%
Sep 30, 2025	UBS GROUP AG	0%	50	140	50	+100.00%
Sep 30, 2025	JONES FINANCIAL COMPANIES LLLP	0%	100	290	100	+100.00%
Sep 30, 2025	VANGUARD GROUP INC	2.75%	181.14K	507.2K	-100	-0.06%
Sep 30, 2025	FARTHER FINANCE ADVISORS, LLC	0.01%	502	1.41K	502	+100.00%
Sep 30, 2025	JAMES INVESTMENT RESEARCH INC	0.45%	29.73K	83.23K	0	0
Sep 30, 2025	JPMORGAN CHASE & CO	0%	7	20	0	0
Sep 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.5%	32.67K	91.5K	-427	-1.29%
Sep 30, 2025	RENAISSANCE TECHNOLOGIES LLC	0.76%	49.8K	139.44K	-16.9K	-25.34%
Sep 30, 2025	WELLS FARGO & COMPANY/MN	0%	0	-	-550	-100.00%
Sep 30, 2025	BARCLAYS PLC	0%	20	56	20	+100.00%
Sep 30, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	1.47%	96.69K	270.74K	0	0
Sep 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	300	840	0	0
Sep 30, 2025	MORGAN STANLEY	0.1%	6.81K	19.07K	454	+7.14%
Sep 30, 2025	CI PRIVATE WEALTH, LLC	2.44%	160.56K	449.57K	0	0
Sep 30, 2025	ACADIAN ASSET MANAGEMENT LLC	0.09%	6.2K	17K	-1.2K	-16.20%
Sep 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	1.66K	4.63K	-7	-0.42%
Jun 30, 2025	BANK OF AMERICA CORP /DE/	0%	72	174	38	+111.76%
Jun 30, 2025	MORGAN STANLEY	0.1%	6.36K	15.32K	0	0
Jun 30, 2025	CI PRIVATE WEALTH, LLC	2.44%	160.56K	386.95K	0	0
Jun 30, 2025	JAMES INVESTMENT RESEARCH INC	0.45%	29.73K	71.64K	0	0
Jun 30, 2025	EMPOWERED FUNDS, LLC	0.18%	11.92K	28.74K	0	0
Jun 30, 2025	ACADIAN ASSET MANAGEMENT LLC	0.11%	7.39K	17K	-8.09K	-52.25%
Jun 30, 2025	DIMENSIONAL FUND ADVISORS LP	3.19%	209.96K	506K	0	0
Jun 30, 2025	VANGUARD GROUP INC	2.75%	181.24K	436.8K	0	0
Jun 30, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	1.47%	96.69K	233.03K	0	0
Jun 30, 2025	NEWEDGE ADVISORS, LLC	0.45%	29.73K	71.64K	0	0
Jun 30, 2025	STATE STREET CORP	0.18%	12.1K	29.16K	0	0
Jun 30, 2025	RAYMOND JAMES FINANCIAL INC	0.06%	3.9K	9.39K	3.9K	+100.00%
Jun 30, 2025	WELLS FARGO & COMPANY/MN	0.01%	550	1.33K	0	0
Jun 30, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	300	723	0	0
Jun 30, 2025	FINANCIAL COUNSELORS INC	0%	0	-	-37.12K	-100.00%
Jun 30, 2025	RENAISSANCE TECHNOLOGIES LLC	1.01%	66.7K	160.75K	-3.2K	-4.58%
Jun 30, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.5%	33.09K	79.78K	364	+1.11%
Jun 30, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.03%	1.66K	4.01K	807	+94.39%
Jun 30, 2025	JPMORGAN CHASE & CO	0%	7	17	-1	-12.50%
Mar 31, 2025	FINANCIAL COUNSELORS INC	0.57%	37.12K	103.2K	0	0
Mar 31, 2025	MORGAN STANLEY	0.1%	6.36K	17.67K	0	0
Mar 31, 2025	EMPOWERED FUNDS, LLC	0.18%	11.92K	33.15K	0	0
Mar 31, 2025	ADVISOR GROUP HOLDINGS, INC.	0%	300	834	300	+100.00%
Mar 31, 2025	WELLS FARGO & COMPANY/MN	0.01%	550	1.53K	0	0
Mar 31, 2025	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	855	2.38K	-445	-34.23%
Mar 31, 2025	STATE STREET CORP	0.19%	12.1K	33.64K	0	0
Mar 31, 2025	ACADIAN ASSET MANAGEMENT LLC	0.24%	15.48K	43K	-2.1K	-11.94%
Mar 31, 2025	RENAISSANCE TECHNOLOGIES LLC	1.08%	69.9K	194.32K	-1.33K	-1.86%
Mar 31, 2025	BRIDGEWAY CAPITAL MANAGEMENT, LLC	1.49%	96.69K	268.8K	-166.5K	-63.26%
Mar 31, 2025	CI PRIVATE WEALTH, LLC	2.47%	160.56K	446.35K	0	0
Mar 31, 2025	VANGUARD GROUP INC	2.79%	181.24K	503.86K	0	0
Mar 31, 2025	JPMORGAN CHASE & CO	0%	8	22	-1	-11.11%
Mar 31, 2025	BANK OF AMERICA CORP /DE/	0%	34	95	0	0
Mar 31, 2025	NEWEDGE ADVISORS, LLC	0.46%	29.73K	82.64K	0	0
Mar 31, 2025	JAMES INVESTMENT RESEARCH INC	0.46%	29.73K	82.64K	0	0
Mar 31, 2025	DIMENSIONAL FUND ADVISORS LP	3.23%	209.96K	583.69K	0	0
Mar 31, 2025	GEODE CAPITAL MANAGEMENT, LLC	0.5%	32.73K	91.03K	3.95K	+13.71%
Mar 31, 2024	EMPOWERED FUNDS, LLC	0.16%	10.47K	30.88K	10.47K	+100.00%
Mar 31, 2024	JPMORGAN CHASE & CO	0%	9	27	-98	-91.59%
Mar 31, 2024	TWO SIGMA ADVISERS, LP	0%	0	-	-10.2K	-100.00%
Mar 31, 2024	CITADEL ADVISORS LLC	0%	0	-	-24.07K	-100.00%
Mar 31, 2024	WELLS FARGO & COMPANY/MN	0%	31	91	1	+3.33%
Mar 31, 2024	BANK OF AMERICA CORP /DE/	0%	297	876	-2	-0.67%
Mar 31, 2024	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	925	2.73K	381	+70.04%
Mar 31, 2024	UBS GROUP AG	0.06%	3.82K	11.25K	3.82K	+100.00%
Mar 31, 2024	MORGAN STANLEY	0.09%	5.91K	17.42K	0	0
Mar 31, 2024	TWO SIGMA INVESTMENTS, LP	0.16%	10.72K	31.63K	0	0
Mar 31, 2024	SUSQUEHANNA INTERNATIONAL GROUP, LLP	0.17%	10.86K	32.03K	10.86K	+100.00%
Mar 31, 2024	GEODE CAPITAL MANAGEMENT, LLC	0.27%	17.92K	52.89K	0	0
Mar 31, 2024	NEWEDGE ADVISORS, LLC	0.46%	29.73K	87.69K	0	0
Mar 31, 2024	JAMES INVESTMENT RESEARCH INC	0.46%	29.73K	87.69K	0	0
Mar 31, 2024	DIMENSIONAL FUND ADVISORS LP	2.63%	171.2K	505.04K	5.15K	+3.10%
Mar 31, 2024	VANGUARD GROUP INC	2.74%	178.67K	527.08K	60.79K	+51.57%
Mar 31, 2024	FINANCIAL COUNSELORS INC	0.58%	37.12K	109.51K	0	0
Mar 31, 2024	RENAISSANCE TECHNOLOGIES LLC	0.65%	42.3K	125K	6.8K	+19.15%
Mar 31, 2024	ACADIAN ASSET MANAGEMENT LLC	1.34%	86.4K	254K	-54.47K	-38.67%
Mar 31, 2024	CI PRIVATE WEALTH, LLC	2.49%	160.56K	473.65K	-360	-0.22%
Mar 31, 2024	BRIDGEWAY CAPITAL MANAGEMENT, LLC	4.02%	261.74K	772.12K	700	+0.27%
Dec 31, 2023	BRIDGEWAY CAPITAL MANAGEMENT, LLC	4.1%	261.04K	621.11K	768	+0.30%
Dec 31, 2023	CANTON HATHAWAY, LLC	0%	0	-	-20K	-100.00%
Dec 31, 2023	WELLS FARGO & COMPANY/MN	0%	30	71	1	+3.45%
Dec 31, 2023	JPMORGAN CHASE & CO	0%	107	255	103	+2,575.00%
Dec 31, 2023	BANK OF AMERICA CORP /DE/	0%	299	712	2	+0.67%
Dec 31, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	544	1.29K	32	+6.25%
Dec 31, 2023	MORGAN STANLEY	0.09%	5.91K	14.05K	0	0
Dec 31, 2023	TWO SIGMA ADVISERS, LP	0.16%	10.2K	24.27K	0	0
Dec 31, 2023	TWO SIGMA INVESTMENTS, LP	0.17%	10.72K	25.51K	0	0
Dec 31, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.28%	17.92K	42.66K	0	0
Dec 31, 2023	CITADEL ADVISORS LLC	0.38%	24.07K	57.28K	5.39K	+28.86%
Dec 31, 2023	JAMES INVESTMENT RESEARCH INC	0.47%	29.73K	70.73K	0	0
Dec 31, 2023	NEWEDGE ADVISORS, LLC	0.47%	29.73K	80.26K	0	0
Dec 31, 2023	RENAISSANCE TECHNOLOGIES LLC	0.56%	35.5K	84K	-24.49K	-40.82%
Dec 31, 2023	FINANCIAL COUNSELORS INC	0.58%	37.12K	88.33K	0	0
Dec 31, 2023	VANGUARD GROUP INC	1.85%	117.88K	280.49K	16.48K	+16.25%
Dec 31, 2023	ACADIAN ASSET MANAGEMENT LLC	2.21%	140.86K	334K	0	0
Dec 31, 2023	CI PRIVATE WEALTH, LLC	2.53%	160.92K	382.89K	360	+0.22%
Dec 31, 2023	DIMENSIONAL FUND ADVISORS LP	2.61%	166.06K	395.11K	0	0
Sep 30, 2023	ACADIAN ASSET MANAGEMENT LLC	2.22%	140.86K	-	0	0
Sep 30, 2023	UBS GROUP AG	0%	0	-	-466	-100.00%
Sep 30, 2023	WELLS FARGO & COMPANY/MN	0%	29	-	2	+7.41%
Sep 30, 2023	DIMENSIONAL FUND ADVISORS LP	2.62%	166.06K	-	0	0
Sep 30, 2023	TOWER RESEARCH CAPITAL LLC (TRC)	0.01%	512	-	-3.11K	-85.86%
Sep 30, 2023	STEWARD FINANCIAL GROUP LLC	0.02%	1.17K	-	1.17K	+100.00%
Sep 30, 2023	MORGAN STANLEY	0.09%	5.91K	-	0	0
Sep 30, 2023	TWO SIGMA ADVISERS, LP	0.16%	10.2K	-	-900	-8.11%
Sep 30, 2023	TWO SIGMA INVESTMENTS, LP	0.17%	10.72K	-	0	0
Sep 30, 2023	GEODE CAPITAL MANAGEMENT, LLC	0.28%	17.92K	-	17.92K	+100.00%
Sep 30, 2023	CANTON HATHAWAY, LLC	0.32%	20K	-	-10K	-33.33%
Sep 30, 2023	NEWEDGE ADVISORS, LLC	0.47%	29.73K	-	-609	-2.01%
Sep 30, 2023	JAMES INVESTMENT RESEARCH INC	0.47%	29.73K	-	0	0
Sep 30, 2023	FINANCIAL COUNSELORS INC	0.59%	37.12K	-	0	0
Sep 30, 2023	CI PRIVATE WEALTH, LLC	2.53%	160.56K	-	0	0

Insiders

Among the AMS insiders holding of 34.85% of the stake in company, BATES ERNEST A, Chairman and CEO, holds the largest shares of 645.15K. STACHOWIAK RAYMOND C, Executive Chairman, is the second largest AMS insider with ownership of 586.47K shares. RUFFLE JOHN F, director, stands third with possession of 480.27K shares of that stake.

Insiders	Designation	Shares Held
BATES ERNEST A	Chairman and CEO	645.15K
STACHOWIAK RAYMOND C	Executive Chairman	586.47K
RUFFLE JOHN F	director	480.27K
TROTMAN STANLEY S JR	director	79.85K
TAGAWA CRAIG KENJI	COO/CFO	64.39K
AMERICAN SHARED HOSPITAL SERVICES	director	55K
LARSON DAVID	director	49.06K

Buying/Selling by Insiders

Date	Insider	Type	Cost	Shares	Value ($)	Shares Total
Jun 22, 2026	STACHOWIAK RAYMOND C	PURCHASE	2.28	586.47K	1.34M	586.47K
May 15, 2019	STACHOWIAK RAYMOND C	PURCHASE	2.73	160.56K	438.33K	760.56K
May 15, 2019	TROTMAN STANLEY S JR	SALE	2.73	160.56K	438.33K	79.85K
Jun 18, 2018	TAGAWA CRAIG KENJI	SALE	2.77	1.4K	3.88K	64.39K
Jun 14, 2018	TAGAWA CRAIG KENJI	SALE	2.70	5	13.5	71.29K
Jun 07, 2018	TAGAWA CRAIG KENJI	SALE	2.66	2.97K	7.89K	68.3K
Jun 06, 2018	TAGAWA CRAIG KENJI	SALE	2.75	34	93.5	71.26K
Jun 05, 2018	TAGAWA CRAIG KENJI	SALE	2.75	5K	13.75K	71.3K
May 19, 2017	TAGAWA CRAIG KENJI	SALE	3.90	3.5K	13.65K	76.3K
May 18, 2017	TAGAWA CRAIG KENJI	SALE	3.83	100	382.5	79.8K
Mar 31, 2017	TAGAWA CRAIG KENJI	SALE	4.32	800	3.46K	82.5K
Mar 30, 2017	BATES ERNEST A	SALE	4.21	5K	21.07K	645.15K
Mar 29, 2017	BATES ERNEST A	SALE	4.24	5K	21.22K	650.15K
Jun 22, 2016	LARSON DAVID	SALE	2.22	500	1.11K	49.06K
Jun 08, 2016	BATES ERNEST A	PURCHASE	2.08	400	832	588.87K
Jun 07, 2016	BATES ERNEST A	PURCHASE	2.05	403	826.15	588.37K
Jun 06, 2016	BATES ERNEST A	PURCHASE	2.00	190	380	587.66K
Aug 27, 2015	LARSON DAVID	SALE	2.07	8.6K	17.82K	49.56K
Oct 22, 2014	STACHOWIAK RAYMOND C	PURCHASE	2.20	100K	220K	555.5K
Jun 12, 2014	TROTMAN STANLEY S JR	PURCHASE	2.43	50K	121.5K	325.83K
Jun 12, 2014	STACHOWIAK RAYMOND C	PURCHASE	2.43	400K	972K	455K
Jun 12, 2014	RUFFLE JOHN F	PURCHASE	2.43	200K	486K	480.27K
Sep 10, 2013	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	2.68	8K	21.44K	55K
Sep 04, 2013	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	2.70	5K	13.5K	47K
Jun 20, 2013	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	2.25	5K	11.24K	37K
May 29, 2013	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	1.90	5K	9.5K	32K
May 16, 2013	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	1.85	9	16.65	249.92K
May 15, 2013	TROTMAN STANLEY S JR	PURCHASE	1.75	50K	87.43K	245.49K
May 14, 2013	TROTMAN STANLEY S JR	PURCHASE	1.61	200	322	195.49K
Jun 21, 2012	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	3.10	1.9K	5.89K	7.6K
Jun 14, 2012	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	2.85	35K	99.75K	39K
May 30, 2012	AMERICAN SHARED HOSPITAL SERVICES	SALE	3.05	2.5K	7.63K	28.67K
Apr 04, 2012	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	3.27	3K	9.8K	3.5K
Jun 20, 2011	AMERICAN SHARED HOSPITAL SERVICES	SALE	3.00	50K	150K	644.17K
Apr 15, 2011	AMERICAN SHARED HOSPITAL SERVICES	SALE	3.12	24K	74.88K	695.17K
Apr 06, 2011	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	3.12	16K	49.92K	218.91K
Sep 10, 2010	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.80	10K	28.03K	748.37K
Aug 23, 2010	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.95	400	1.18K	36.83K
Jun 11, 2010	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.75	120	330	37.23K
Jun 08, 2010	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.80	480	1.34K	39.25K
May 28, 2010	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.75	2.5K	6.88K	39.73K
Apr 13, 2010	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	2.75	16K	44K	218.41K
Aug 28, 2009	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.65	10K	26.5K	43.63K
Aug 20, 2009	AMERICAN SHARED HOSPITAL SERVICES	SALE	2.39	50K	119.7K	799.37K
Nov 28, 2008	TROTMAN STANLEY S JR	PURCHASE	1.25	200	250	168.29K
Nov 26, 2008	TROTMAN STANLEY S JR	PURCHASE	1.25	4.08K	5.09K	168.09K
Nov 25, 2008	TROTMAN STANLEY S JR	PURCHASE	1.25	3.87K	4.83K	164.01K
Nov 24, 2008	TROTMAN STANLEY S JR	PURCHASE	1.25	7.03K	8.78K	160.15K
Nov 19, 2008	TROTMAN STANLEY S JR	PURCHASE	1.40	8.86K	12.4K	153.12K
Aug 14, 2006	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	5.40	2K	10.8K	16.73K
Aug 11, 2006	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	5.57	2K	11.14K	14.73K
Aug 10, 2006	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	5.65	600	3.39K	12.73K
Aug 08, 2006	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	5.75	1K	5.75K	12.13K
Aug 11, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	4.54	500	2.27K	897.68K
Aug 10, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	4.28	800	3.42K	846.18K
Aug 09, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	4.30	30K	129K	866.18K
Aug 06, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	4.25	170K	722.5K	527.28K
Jul 21, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	4.50	2.22K	10K	537.28K
Jun 29, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	5.57	5K	27.85K	539.5K
Jun 24, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	5.60	4.6K	25.76K	544.5K
Jun 17, 2004	AMERICAN SHARED HOSPITAL SERVICES	PURCHASE	5.39	100	539	10.23K
Jun 16, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	5.40	800	4.32K	474.5K
Mar 05, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.30	5.9K	37.17K	477.3K
Mar 01, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.20	5K	31K	483.2K
Feb 23, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	2.7K	16.61K	498.8K
Feb 20, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	1.1K	6.77K	501.5K
Feb 17, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	600	3.69K	502.6K
Feb 10, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	400	2.46K	503.2K
Feb 09, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	3.8K	23.37K	503.6K
Feb 06, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.15	1.4K	8.61K	507.4K
Feb 05, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.10	1.6K	9.76K	513.8K
Feb 03, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.10	600	3.66K	518.4K
Feb 02, 2004	AMERICAN SHARED HOSPITAL SERVICES	SALE	6.08	1.5K	9.12K	519.8K

Insider Transaction Summary (6 Months)

SHARESTRANS

PURCHASE586.47K1

SALES00

NET SHARES586.47K1

SHARES HELD586.47K1

% NET SHARES0%0%

Frequently Asked Questions