Ticker · CUSIP 032724106

ANAB

ANAPTYSBIO INC
Healthcare·Biotechnology
···Share
Holders (tracked)
13
Combined shares
4,102,137
Combined value
$197.61M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
13122024Q12025Q4

SEC event timeline

21 events
  1. Wellington Management trimmed2026-02-17
    −5,544 shares · 2025Q4
    Position
  2. Ken Griffin (Citadel Advisors) added2026-02-17
    +83,003 shares · 2025Q4
    Position
  3. Two Sigma Investments added2026-02-17
    +215 shares · 2025Q4
    Position
  4. AQR Capital Management added2026-02-17
    +135 shares · 2025Q4
    Position
  5. D.E. Shaw & Co. added2026-02-17
    +320,928 shares · 2025Q4
    Position
  6. Izzy Englander (Millennium Mgmt) trimmed2026-02-17
    −705,659 shares · 2025Q4
    Position
  7. Steve Cohen (Point72) trimmed2026-02-17
    −332,638 shares · 2025Q4
    Position
  8. T. Rowe Price trimmed2026-02-17
    −273,306 shares · 2025Q4
    Position
  9. Paul Tudor Jones (Tudor Investment) opened position2026-02-17
    +17,305 shares · 2025Q4
    Position
  10. Renaissance Technologies trimmed2026-02-12
    −47,000 shares · 2025Q4
    Position
  11. Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
    −2,314 shares · 2025Q4
    Position
  12. Paul Tudor Jones (Tudor Investment) exited2025-12-09
    −9,419 shares · 2025Q3
    Position
  13. Steve Cohen (Point72) trimmed2025-11-14
    −209,346 shares · 2025Q3
    Position
  14. Two Sigma Investments added2025-11-14
    +25,051 shares · 2025Q3
    Position
  15. D.E. Shaw & Co. added2025-11-14
    +237,011 shares · 2025Q3
    Position
  16. T. Rowe Price trimmed2025-11-14
    −373,860 shares · 2025Q3
    Position
  17. Wellington Management trimmed2025-11-14
    −13,482 shares · 2025Q3
    Position
  18. AQR Capital Management trimmed2025-11-14
    −1,548 shares · 2025Q3
    Position
  19. Izzy Englander (Millennium Mgmt) added2025-11-14
    +1,315,688 shares · 2025Q3
    Position
  20. Renaissance Technologies trimmed2025-11-13
    −139,786 shares · 2025Q3
    Position
  21. Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12
    −21 shares · 2025Q3
    Position

Insider activity

No insider transactions in the last 30 days.
View full insider history for ANAB →

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.
New positions1
Added to4
Trimmed6
Exited0
—

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.
QuarterHoldersCombined value
2022Q1
11
$88.2M
2022Q2
11
$63.3M
2022Q3
9
$129K
2022Q4
11
$138.8M
2023Q1
11
$87.2M
2023Q2
10
$86.9M
2023Q3
11
$64.3M
2023Q4
12
$70.7M
2024Q1
12
$86.4M
2024Q2
12
$71.3M
2024Q3
13
$49.7M
2024Q4
11
$18.1M
2025Q1
13
$68.9M
2025Q2
13
$80.9M
2025Q3
13
$145.2M
2025Q4
13
$197.6M

Who owns ANAB

13 super-investors · 2025Q4
Tracked stake
4.10M
shares
Combined value
$198M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added6Trim6
#ManagerSharesValue
1Steve Cohen
Point72
1.93M$94M
2Izzy Englander
Millennium Mgmt
813.6K$39M
3D.E. Shaw & Co.670.3K$32M
4Two Sigma Investments256.6K$12M
5Ken Griffin
Citadel Advisors
109.5K$5M
6Renaissance Technologies76.3K$4M
7Wellington Management61.2K$3M
8Ken Fisher
Fisher Asset Mgmt
56.6K$3M
9Ken Griffin
Citadel Advisors
30.4K$1M
10AQR Capital Management26.3K$1M
11Ken Griffin
Citadel Advisors
25.2K$1M
12Paul Tudor Jones
Tudor Investment
17.3K$839K
13T. Rowe Price26.0K$1K

Recent moves

20 transactions
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