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AMS — AMERICAN SHARED HOSPITAL SVC

Reported value held$629.25K
Funds holding (latest)11
SectorHealth Care
Funds holding (Q2 2026)5
Institutional value$172.08K · 108.90K sh
New / Add / Cut / Exit1 / 2 / 1 / 1
Top-5 / Top-10 concentration100.0% / 100.0%
Institutional holdings change Reducing -6.4% (-7.50K sh)
Institutional value change Up +1.9%

As of Q2 2026, 5 SEC-registered investment managers reported holding AMS (AMERICAN SHARED HOSPITAL SVC) in their latest 13F filings, with a combined reported value of $172.08K across 108.90K shares. That is -6.4% by share count (-7.50K shares) versus the previous quarter, while reported value moved +1.9%. Ownership is concentrated: the five largest holders account for 100.0% of reported value and the top ten for 100.0%.

Compared with the prior quarter, 1 opened new positions, 2 added to existing stakes, 1 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

AMS is classified in the Health Care sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
Vanguard Group history Q4 2025 181.14K $382.21K 0.00% Hold
Renaissance Technologies history Q2 2026 57.70K $91.16K 0.00% Add
Geode Capital Management history Q2 2026 26.50K $41.89K 0.00% Reduce
Citadel Advisors history Q1 2026 28.56K $41.41K 0.00% New
Two Sigma Investments history Q3 2024 10.52K $32.07K 0.00% Reduce
UBS Group AG history Q2 2026 18.39K $29.06K 0.00% Add
Morgan Stanley history Q2 2026 5.86K $9.26K 0.00% Hold
Wells Fargo & Co history Q2 2025 550 $1.33K 0.00% Hold
Citigroup Inc history Q2 2026 454 $717 0.00% New
Bank of America Corp history Q4 2025 60 $126 0.00% Reduce
JPMorgan Chase & Co history Q3 2025 7 $20 0.00% Hold

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 11 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
Renaissance Technologies 11.50K 13.70K 12.30K 15.30K 19.32K 26.00K 45.20K 74.80K 59.99K 35.50K 42.30K 55.50K 67.45K 71.22K 69.90K 66.70K 49.80K 49.40K 49.20K 57.70K
Geode Capital Management — — — — — — — — 17.92K 17.92K 17.92K 25.90K 28.78K 28.78K 32.73K 33.09K 32.66K 32.66K 32.59K 26.50K
UBS Group AG — 5.58K 2.20K 2.20K 6.45K 4.61K 1.99K 466 — — 3.81K — 896 — — — 50 — 200 18.39K
Morgan Stanley 5.91K 5.91K 7.03K 5.91K 5.91K 5.91K 5.91K 5.91K 5.91K 5.91K 5.91K 6.36K 6.36K 6.36K 6.36K 6.36K 6.81K 6.31K 5.86K 5.86K
Citigroup Inc — — — — — — — — — — — 134 — — — — — 142 — 454
Citadel Advisors — — — — — — 13.84K 33.22K 18.68K 24.07K — — — — — — — — 28.56K —
JPMorgan Chase & Co — — — — — — — — 4 107 9 9 9 9 8 7 7 — — —
Bank of America Corp 297 298 297 297 297 301 297 297 297 299 297 329 41 34 34 72 65 60 — —
Vanguard Group 104.64K 104.64K 104.64K 104.64K 104.54K 104.54K 99.85K 99.85K 101.41K 117.88K 178.67K 181.24K 181.24K 181.24K 181.24K 181.24K 181.14K 181.14K — —
Two Sigma Investments 26.40K 15.13K 11.12K 10.72K 10.72K 10.72K 10.72K 10.72K 10.72K 10.72K 10.72K 10.72K 10.52K — — — — — — —
Wells Fargo & Co 21 21 21 24 24 25 26 27 29 30 31 — 550 550 550 550 — — — —

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