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American Shared Hospital Services

AMS
Exchange
NYSE
Industry
Services-Medical Laboratories
SEC CIK
0000744825

No open-market purchases or sales by American Shared Hospital Services insiders were filed in the last 90 days; 19 institutions reported holding it in 13F filings for Q2 2026, worth $798.6K in total; no superinvestor holds it.

13F holders, Q2 2026

Institutional positions in American Shared Hospital Services as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
19
−1 vs. Q1 2026
Shares held
505.5K
−486.6K (−49.0%) vs. Q1 2026
Total value
$798.6K
−$639.8K (−44.5%) vs. Q1 2026
New holders
4
3 more added
Sold out
5
5 more reduced

Compare with Q1 2026: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting AMS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2026: 19 institutions
Q1 2021: 18 institutionsQ2 2021: 16 institutionsQ3 2021: 18 institutionsQ4 2021: 18 institutionsQ1 2022: 16 institutionsQ2 2022: 16 institutionsQ3 2022: 16 institutionsQ4 2022: 18 institutionsQ1 2023: 20 institutionsQ2 2023: 18 institutionsQ3 2023: 21 institutionsQ4 2023: 18 institutionsQ1 2024: 19 institutionsQ2 2024: 19 institutionsQ3 2024: 18 institutionsQ4 2024: 17 institutionsQ1 2025: 18 institutionsQ2 2025: 18 institutionsQ3 2025: 23 institutionsQ4 2025: 18 institutionsQ1 2026: 20 institutionsQ2 2026: 19 institutions
Value heldQ2 2026: $798.6K
Q1 2021: $1.86MQ2 2021: $2.50MQ3 2021: $2.42MQ4 2021: $1.91MQ1 2022: $1.83MQ2 2022: $1.80MQ3 2022: $2.20MQ4 2022: $3.06MQ1 2023: $3.09MQ2 2023: $2.79MQ3 2023: $2.70MQ4 2023: $2.50MQ1 2024: $3.12MQ2 2024: $3.47MQ3 2024: $3.29MQ4 2024: $3.39MQ1 2025: $2.49MQ2 2025: $2.05MQ3 2025: $3.47MQ4 2025: $1.86MQ1 2026: $1.44MQ2 2026: $798.6K
Institutions holding AMS and their total value by quarter
QuarterHoldersValue
Q2 202619$798.6K
Q1 202620$1.44M
Q4 202518$1.86M
Q3 202523$3.47M
Q2 202518$2.05M
Q1 202518$2.49M
Q4 202417$3.39M
Q3 202418$3.29M
Q2 202419$3.47M
Q1 202419$3.12M
Q4 202318$2.50M
Q3 202321$2.70M
Q2 202318$2.79M
Q1 202320$3.09M
Q4 202218$3.06M
Q3 202216$2.20M
Q2 202216$1.80M
Q1 202216$1.83M
Q4 202118$1.91M
Q3 202118$2.42M
Q2 202116$2.50M
Q1 202118$1.86M

Institutions, Q2 2026

Shares, value and share of portfolio for each institution holding American Shared Hospital Services; share changes are against Q1 2026.

Institutions holding AMS in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Royal Bank of Canada69$00.00%00.0%Unchanged
Barclays PLC82$1300.00%+82New
Jones Financial Companies LLLP100$1610.00%00.0%Unchanged
Caitong International Asset Management Co., Ltd107$1690.00%+107New
Citigroup Inc454$7170.00%+454New
Morgan Stanley5,858$9.26K0.00%00.0%Unchanged
Empowered Funds, LLC11,924$18.8K0.00%00.0%Unchanged
State Street Corp12,101$19.1K0.00%00.0%Unchanged
UBS Group AG18,395$29.1K0.00%+18,195+9,097.5%Added
XTX Topco Ltd19,107$30.2K0.00%+19,107New
Vanguard Fiduciary Trust Co25,363$40.1K0.00%−2,043−7.5%Reduced
Geode Capital Management, LLC26,497$41.9K0.00%−6,091−18.7%Reduced
Bridgeway Capital Management, LLC29,124$46.0K0.00%−61,696−67.9%Reduced
James Investment Research Inc29,725$47.0K0.00%00.0%Unchanged
GWM Advisors LLC29,725$47.0K0.00%00.0%Unchanged
Vanguard Capital Management LLC55,662$87.9K0.00%−98,075−63.8%Reduced
Renaissance Technologies LLC57,695$91.2K0.00%+8,495+17.3%Added
LPL Financial LLC81,386$128.6K0.00%+5,020+6.6%Added
Dimensional Fund Advisors LP102,140$161.4K0.00%−102,980−50.2%Reduced
CI Private Wealth, LLC0$00.00%−160,559−100.0%Sold out
Susquehanna International Group, LLP0$00.00%−42,314−100.0%Sold out
DRW Securities, LLC0$00.00%−32,889−100.0%Sold out
Citadel Advisors LLC0$00.00%−28,558−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−2,814−100.0%Sold out