Ticker · CUSIP 00288U106
Holders (tracked)
10
Combined shares
15,232,040
Combined value
$52.09M
Last close
$4.01
Quarter
2025Q4
Price · 1Y$4.01+1.59 (+65.70%)H $6.17 · L $1.97 · Avg Vol 4.8M
Position opened
Tracked holders · last 8 quarters
+2 vs previous quarter over the last 8.
Price is +17.3% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) added2026-02-17+825,893 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+635,843 shares · 2025Q4Position
- D.E. Shaw & Co. added2026-02-17+1,293 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−656,197 shares · 2025Q4Position
- Steve Cohen (Point72) opened position2026-02-17+976,507 shares · 2025Q4Position
- +1,796,010 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−971,500 shares · 2025Q4Position
- Norges Bank (Norway SWF) opened position2026-02-10+176,386 shares · 2025Q4Position
- Baillie Gifford & Co exited2026-01-23−10,422,966 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−967,853 shares · 2025Q3Position
- D.E. Shaw & Co. added2025-11-14+25,409 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+1,064,290 shares · 2025Q3Position
- Renaissance Technologies added2025-11-13+53,300 shares · 2025Q3Position
- Norges Bank (Norway SWF) exited2025-11-13−630,938 shares · 2025Q3Position
- Baillie Gifford & Co added2025-10-31+62,962 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of ABCL…
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 |
|---|---|---|---|---|
| Steve Cohen (Point72) | 2020Q4 | $3.50 | +14.4% | $3.9M |
| Izzy Englander (Millennium Mgmt) | 2020Q4 | $3.51 | +14.1% | $7.1M |
| Paul Tudor Jones (Tudor Investment) | 2021Q2 | $3.54 | +13.3% | $7.2M |
| Ken Griffin (Citadel Advisors) | 2020Q4 | $3.61 | +11.2% | $702K |
| Ken Griffin (Citadel Advisors) | 2020Q4 | $3.61 | +11.2% | $702K |
| Ken Griffin (Citadel Advisors) | 2020Q4 | $3.61 | +11.2% | $702K |
| Two Sigma Investments | 2021Q1 | $4.82 | -16.8% | $23.3M |
| Renaissance Technologies | 2021Q2 | $5.45 | -26.5% | $9.6M |
| Norges Bank (Norway SWF) | 2021Q2 | $7.88 | -49.1% | $707K |
| D.E. Shaw & Co. | 2021Q3 | $8.10 | -50.5% | $312K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions3
- Paul Tudor Jones (Tudor Investment)+1,796,010$6.1M
- Steve Cohen (Point72)+976,507$3.3M
- Norges Bank (Norway SWF)+176,386$603K
Added to3
- Ken Griffin (Citadel Advisors)+825,893$2.8M
- Two Sigma Investments+635,843$2.2M
- D.E. Shaw & Co.+1,293$4K
Trimmed2
- Renaissance Technologies−971,500$3.3M
- Izzy Englander (Millennium Mgmt)−656,197$2.2M
Exited1
- Baillie Gifford & Co−10,422,966$52.4M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 12 | $2.97B |
| 2022Q2 | 14 | $3.42B |
| 2022Q3 | 15 | $360.2M |
| 2022Q4 | 16 | $436.7M |
| 2023Q1 | 16 | $333.9M |
| 2023Q2 | 15 | $271.7M |
| 2023Q3 | 13 | $172.5M |
| 2023Q4 | 10 | $196.1M |
| 2024Q1 | 10 | $150.4M |
| 2024Q2 | 11 | $98.1M |
| 2024Q3 | 9 | $57.6M |
| 2024Q4 | 8 | $63.4M |
| 2025Q1 | 7 | $44.8M |
| 2025Q2 | 9 | $85.8M |
| 2025Q3 | 8 | $115.4M |
| 2025Q4 | 10 | $52.1M |
Who owns ABCL
10 super-investors · 2025Q4
Tracked stake
15.23M
shares
Combined value
$52M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New3Added5Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Two Sigma Investments | 5.81M | $20M |
| 2 | Renaissance Technologies | 2.39M | $8M |
| 3 | Ken Griffin Citadel Advisors | 1.83M | $6M |
| 4 | Paul Tudor Jones Tudor Investment | 1.80M | $6M |
| 5 | Izzy Englander Millennium Mgmt | 1.77M | $6M |
| 6 | Steve Cohen Point72 | 976.5K | $3M |
| 7 | Ken Griffin Citadel Advisors | 222.0K | $759K |
| 8 | Norges Bank Norway SWF | 176.4K | $603K |
| 9 | Ken Griffin Citadel Advisors | 175.1K | $599K |
| 10 | D.E. Shaw & Co. | 77.8K | $266K |
Recent moves
20 transactions
- +976,507 · 2025Q4
- +825,893 · 2025Q4
- −656,197 · 2025Q4
- +1,293 · 2025Q4
- +1,796,010 · 2025Q4
- +635,843 · 2025Q4
- −971,500 · 2025Q4
- +176,386 · 2025Q4
- −10,422,966 · 2025Q4
- +1,064,290 · 2025Q3
- +25,409 · 2025Q3
- −967,853 · 2025Q3
- +53,300 · 2025Q3
- −630,938 · 2025Q3
- +62,962 · 2025Q3
- +984,063 · 2025Q2
- +2,527,880 · 2025Q2
- +51,074 · 2025Q2
- +630,938 · 2025Q2
- +413,400 · 2025Q2
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