Ticker · CUSIP 045396207
Holders (tracked)
4
Combined shares
740,936
Combined value
$25.20M
Last close
$29.24
Quarter
2025Q4
Price · 1Y$29.24+19.21 (+191.53%)H $38.50 · L $9.94 · Avg Vol 99K
Position opened
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -14.0% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
7 events
- Steve Cohen (Point72) added2026-02-17+304,592 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+76,613 shares · 2025Q4Position
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−21,012 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−144,371 shares · 2025Q4Position
- +21,608 shares · 2025Q3Position
- Steve Cohen (Point72) opened position2025-11-14+296,017 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+46,090 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ASMB…
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 | 2024Q1 | $17.17 | +70.3% | $270K |
| Ken Griffin (Citadel Advisors) | 2024Q2 | $19.64 | +48.9% | $961K |
| Izzy Englander (Millennium Mgmt) | 2024Q1 | $29.45 | -0.7% | $2.9M |
| Steve Cohen (Point72) | 2025Q3 | $29.87 | -2.1% | $17.6M |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to2
- Steve Cohen (Point72)+304,592$10.4M
- Izzy Englander (Millennium Mgmt)+76,613$2.6M
Trimmed2
- Renaissance Technologies−144,371$4.9M
- Ken Griffin (Citadel Advisors)−21,012$715K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2024Q1 | 3 | $3.2M |
| 2024Q2 | 5 | $3.7M |
| 2024Q3 | 3 | $1.8M |
| 2024Q4 | 1 | $1.5M |
| 2025Q1 | 2 | $1.2M |
| 2025Q2 | 2 | $2.6M |
| 2025Q3 | 4 | $13.4M |
| 2025Q4 | 4 | $25.2M |
Who owns ASMB
4 super-investors · 2025Q4
Tracked stake
740.9K
shares
Combined value
$25M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added2Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Steve Cohen Point72 | 600.6K | $20M |
| 2 | Izzy Englander Millennium Mgmt | 98.2K | $3M |
| 3 | Ken Griffin Citadel Advisors | 32.9K | $1M |
| 4 | Renaissance Technologies | 9.2K | $314K |
Recent moves
19 transactions
- −21,012 · 2025Q4
- +76,613 · 2025Q4
- +304,592 · 2025Q4
- −144,371 · 2025Q4
- +296,017 · 2025Q3
- +21,608 · 2025Q3
- +46,090 · 2025Q3
- −5,790 · 2025Q2
- +18,600 · 2025Q1
- −37,553 · 2024Q4
- +29,087 · 2024Q4
- −85,905 · 2024Q3
- +10,713 · 2024Q3
- −1,464 · 2024Q2
- TRIMBlackRock−728 · 2024Q2
- +15,451 · 2024Q2
- +124,922 · 2024Q1
- +39,460 · 2024Q1
- NEWBlackRock+77,961 · 2024Q1
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