Ticker · CUSIP 004468500
Holders (tracked)
6
Combined shares
2,446,261
Combined value
$12.16M
Last close
$5.10
Quarter
2025Q4
Price · 1Y$5.10+3.11 (+156.28%)H $5.83 · L $1.99 · Avg Vol 981K
Position opened
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
Price is +2.6% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
9 events
- Ken Griffin (Citadel Advisors) added2026-02-17+55,600 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+309,552 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+1,121,614 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+75,169 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−158,304 shares · 2025Q4Position
- AQR Capital Management exited2025-11-14−25,300 shares · 2025Q3Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−148,698 shares · 2025Q3Position
- Two Sigma Investments opened position2025-11-14+439,064 shares · 2025Q3Position
- Renaissance Technologies opened position2025-11-13+310,764 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ACHV…
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 | 2021Q1 | $3.42 | +49.0% | $778K |
| Two Sigma Investments | 2021Q2 | $4.05 | +26.0% | $3.8M |
| Izzy Englander (Millennium Mgmt) | 2020Q4 | $4.52 | +12.8% | $6.9M |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $4.53 | +12.6% | $479K |
| Ken Griffin (Citadel Advisors) | 2021Q4 | $4.53 | +12.6% | $479K |
| Steve Cohen (Point72) | 2025Q4 | $4.97 | +2.6% | $383K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Steve Cohen (Point72)+75,169$374K
Added to3
- Izzy Englander (Millennium Mgmt)+1,121,614$5.6M
- Two Sigma Investments+309,552$1.5M
- Ken Griffin (Citadel Advisors)+55,600$276K
Trimmed1
- Renaissance Technologies−158,304$787K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 3 | $686K |
| 2022Q2 | 4 | $391K |
| 2022Q3 | 3 | $291K |
| 2022Q4 | 6 | $353K |
| 2023Q1 | 5 | $659K |
| 2023Q2 | 5 | $772K |
| 2023Q3 | 6 | $561K |
| 2023Q4 | 2 | $261K |
| 2024Q1 | 5 | $1.3M |
| 2024Q2 | 6 | $9.7M |
| 2024Q3 | 5 | $348K |
| 2024Q4 | 5 | $392K |
| 2025Q1 | 7 | $414K |
| 2025Q2 | 4 | $1.0M |
| 2025Q3 | 5 | $3.3M |
| 2025Q4 | 6 | $12.2M |
Who owns ACHV
6 super-investors · 2025Q4
Tracked stake
2.45M
shares
Combined value
$12M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added4Trim1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 1.36M | $7M |
| 2 | Two Sigma Investments | 748.6K | $4M |
| 3 | Renaissance Technologies | 152.5K | $758K |
| 4 | Ken Griffin Citadel Advisors | 93.9K | $467K |
| 5 | Steve Cohen Point72 | 75.2K | $374K |
| 6 | Ken Griffin Citadel Advisors | 17.0K | $84K |
Recent moves
20 transactions
- +309,552 · 2025Q4
- +75,169 · 2025Q4
- +55,600 · 2025Q4
- +1,121,614 · 2025Q4
- −158,304 · 2025Q4
- −148,698 · 2025Q3
- −25,300 · 2025Q3
- +439,064 · 2025Q3
- +310,764 · 2025Q3
- +13,498 · 2025Q2
- SOLDT. Rowe Price−13,474 · 2025Q2
- +364,098 · 2025Q2
- −87,886 · 2025Q2
- +11,802 · 2025Q1
- +22,102 · 2025Q1
- +26,726 · 2025Q1
- +2,389 · 2024Q4
- +25,300 · 2024Q4
- −18,295 · 2024Q3
- +10,800 · 2024Q3
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