Ticker · CUSIP 029595105
Holders (tracked)
1
Combined shares
49,400
Combined value
$104.2K
Last close
$1.58
Quarter
2025Q4
Price · 1Y$1.58-1.12 (-41.48%)H $3.04 · L $1.29 · Avg Vol 30K
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -25.1% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
2 events
- Renaissance Technologies trimmed2026-02-12−400 shares · 2025Q4Position
- Renaissance Technologies trimmed2025-11-13−16,900 shares · 2025Q3Position
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 03-26 | Stachowiak Raymond C Executive Chairman · Officer, Director, 10%+ | A | 100,000 | — | $0 |
Follow-the-investor returns
If you'd copied each holder of AMS…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| Renaissance Technologies | 2017Q1 | $2.89 | -45.3% | $78K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 3 | $57K |
| 2022Q2 | 3 | $60K |
| 2022Q3 | 3 | $80K |
| 2022Q4 | 3 | $109K |
| 2023Q1 | 3 | $196K |
| 2023Q2 | 3 | $303K |
| 2023Q3 | 3 | $221K |
| 2023Q4 | 3 | $167K |
| 2024Q1 | 2 | $157K |
| 2024Q2 | 2 | $212K |
| 2024Q3 | 2 | $238K |
| 2024Q4 | 1 | $227K |
| 2025Q1 | 1 | $194K |
| 2025Q2 | 1 | $161K |
| 2025Q3 | 1 | $139K |
| 2025Q4 | 1 | $104K |
Who owns AMS
1 super-investors · 2025Q4
Tracked stake
49.4K
shares
Combined value
$104K
% of shares outstanding
—
shares-out unknown
Quarter action mix
Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 49.4K | $104K |
Recent moves
20 transactions
- −400 · 2025Q4
- −16,900 · 2025Q3
- −3,200 · 2025Q2
- −1,325 · 2025Q1
- −10,515 · 2024Q4
- +3,776 · 2024Q4
- −208 · 2024Q3
- +11,948 · 2024Q3
- +13,201 · 2024Q2
- +6,800 · 2024Q1
- −24,488 · 2023Q4
- −14,807 · 2023Q3
- +29,595 · 2023Q2
- SOLDBlackRock−709 · 2023Q1
- +19,200 · 2023Q1
- +6,679 · 2022Q4
- +4,021 · 2022Q3
- −400 · 2022Q2
- +3,000 · 2022Q2
- −4,007 · 2022Q1
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- AMS insider tradingEvery Form 4 filing by AMS officers, directors, and 10%+ holders.
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