Ticker · CUSIP 03879J100
Holders (tracked)
6
Combined shares
961,466
Combined value
$4.20M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-2 vs previous quarter over the last 8.
SEC event timeline
12 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−88,848 shares · 2025Q413F
- D.E. Shaw & Co. added2026-02-17+41,811 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) exited2026-02-17−528,340 shares · 2025Q413F
- T. Rowe Price added2026-02-17+6,208 shares · 2025Q413F
- Wellington Management trimmed2026-02-17−39,722 shares · 2025Q413F
- AQR Capital Management added2026-02-17+1,550 shares · 2025Q413F
- AQR Capital Management trimmed2025-11-14−22,469 shares · 2025Q313F
- Two Sigma Investments exited2025-11-14−11,299 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) added2025-11-14+28,857 shares · 2025Q313F
- D.E. Shaw & Co. added2025-11-14+149,252 shares · 2025Q313F
- T. Rowe Price added2025-11-14+6,485 shares · 2025Q313F
- Wellington Management trimmed2025-11-14−17,468 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions0
—
Added to3
- D.E. Shaw & Co.+41,811$201K
- AQR Capital Management+1,550$7K
- T. Rowe Price+6,208$30
Trimmed2
- Ken Griffin (Citadel Advisors)−88,848$427K
- Wellington Management−39,722$191K
Exited1
- Izzy Englander (Millennium Mgmt)−528,340$2.4M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 8 | $30.7M |
| 2022Q2 | 8 | $34.1M |
| 2022Q3 | 10 | $23K |
| 2022Q4 | 9 | $22.8M |
| 2023Q1 | 10 | $28.9M |
| 2023Q2 | 9 | $32.6M |
| 2023Q3 | 8 | $28.5M |
| 2023Q4 | 8 | $35.8M |
| 2024Q1 | 8 | $34.6M |
| 2024Q2 | 8 | $38.5M |
| 2024Q3 | 8 | $5.8M |
| 2024Q4 | 7 | $2.6M |
| 2025Q1 | 8 | $4.0M |
| 2025Q2 | 9 | $4.2M |
| 2025Q3 | 8 | $6.9M |
| 2025Q4 | 6 | $4.2M |
Who owns ABUS
6 super-investors · 2025Q4
Tracked stake
961.5K
shares
Combined value
$4M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added3Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Wellington Management | 474.4K | $2M |
| 2 | D.E. Shaw & Co. | 231.8K | $1M |
| 3 | Ken Griffin Citadel Advisors | 104.8K | $504K |
| 4 | Ken Griffin Citadel Advisors | 44.5K | $214K |
| 5 | AQR Capital Management | 16.8K | $81K |
| 6 | T. Rowe Price | 89.2K | $430 |
Recent moves
20 transactions
- −528,340 · 2025Q4
- +1,550 · 2025Q4
- +6,208 · 2025Q4
- +41,811 · 2025Q4
- −39,722 · 2025Q4
- −88,848 · 2025Q4
- +6,485 · 2025Q3
- −11,299 · 2025Q3
- −22,469 · 2025Q3
- −17,468 · 2025Q3
- +28,857 · 2025Q3
- +149,252 · 2025Q3
- −6,987 · 2025Q2
- +21,042 · 2025Q2
- +11,002 · 2025Q2
- −10,468 · 2025Q2
- +151,263 · 2025Q2
- +40,700 · 2025Q2
- −11,200 · 2025Q1
- +5,192 · 2025Q1
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