Ticker · CUSIP 004816104
Holders (tracked)
1
Combined shares
116,107
Combined value
$4.68M
Last close
$46.03
Quarter
2025Q4
Price · 1Y$46.03+5.27 (+12.94%)H $46.03 · L $35.23 · Avg Vol 14K
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is +14.2% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
2 events
- Renaissance Technologies trimmed2026-02-12−5,830 shares · 2025Q4Position
- Renaissance Technologies added2025-11-13+530 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ACU…
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 | 2016Q1 | $23.03 | +99.9% | $5.3M |
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 | 2 | $5.7M |
| 2022Q2 | 2 | $5.3M |
| 2022Q3 | 2 | $3.4M |
| 2022Q4 | 2 | $3.1M |
| 2023Q1 | 2 | $3.1M |
| 2023Q2 | 2 | $3.3M |
| 2023Q3 | 2 | $4.2M |
| 2023Q4 | 2 | $5.8M |
| 2024Q1 | 3 | $7.8M |
| 2024Q2 | 4 | $5.7M |
| 2024Q3 | 2 | $6.0M |
| 2024Q4 | 3 | $5.8M |
| 2025Q1 | 3 | $6.2M |
| 2025Q2 | 1 | $5.0M |
| 2025Q3 | 1 | $5.0M |
| 2025Q4 | 1 | $4.7M |
Who owns ACU
1 super-investors · 2025Q4
Tracked stake
116.1K
shares
Combined value
$5M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 116.1K | $5M |
Recent moves
20 transactions
- −5,830 · 2025Q4
- +530 · 2025Q3
- −23,678 · 2025Q2
- −300 · 2025Q2
- +15,080 · 2025Q1
- −1,200 · 2025Q1
- +8,598 · 2024Q4
- −4,300 · 2024Q4
- −6,070 · 2024Q3
- −3,200 · 2024Q3
- −19,667 · 2024Q2
- ADDBlackRock+1,166 · 2024Q2
- +1,100 · 2024Q2
- +25,737 · 2024Q1
- +4,500 · 2024Q1
- TRIMBlackRock−169 · 2024Q1
- −4,095 · 2023Q4
- ADDBlackRock+341 · 2023Q4
- +3,295 · 2023Q3
- ADDBlackRock+4,810 · 2023Q3
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- ACU insider tradingEvery Form 4 filing by ACU officers, directors, and 10%+ holders.
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