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AnaptysBio, Inc. (ANAB) institutional ownership

Latest close $54.15 Jul 24, 2026
Market cap$725M 52-week range SectorHealthcare
Funds holding · Q1 2026
190
reported ANAB position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Activity unavailable N/A
101 buyers · 89 sellers

AnaptysBio, Inc. (ANAB) price and institutional activity

Dates

Q1 2026

$0 bought by 101 investors
Affinity Asset Advisors, LLCFMR LLC +99 more
$0 sold by 89 investors
Point72 Asset Management, L.P.Two Sigma Advisers, LP +87 more
Bought Sold Totals per quarter; hover a bar for the names.

AnaptysBio, Inc. (ANAB) institutional activity · 190

Investor Type Est. change Change Δ Own Date
Point72 Asset Management, L.P. · Reduced
Change −1.9M Δ Own −97.1% Date Q1 2026
Point72 Asset Management, L.P. Reduced· Q1 2026 −1.9M −97.1% Q1 2026
Affinity Asset Advisors, LLC · Added
Change +495K Date Q1 2026
Affinity Asset Advisors, LLC Added· Q1 2026 +495K Q1 2026
FMR LLC · Added
Change +446K Δ Own +1643.8% Date Q1 2026
FMR LLC Added· Q1 2026 +446K +1643.8% Q1 2026
Bank of America Corp · Added
Change +370K Date Q1 2026
Bank of America Corp Added· Q1 2026 +370K Q1 2026
Two Sigma Advisers, LP · Exited
Change −357K Δ Own −100.0% Date Q1 2026
Two Sigma Advisers, LP Exited· Q1 2026 −357K −100.0% Q1 2026
Millennium Management LLC · Reduced
Change −338K Date Q1 2026
Millennium Management LLC Reduced· Q1 2026 −338K Q1 2026
Synergy Asset Management, LLC · New
Change +317K Date Q1 2026
Synergy Asset Management, LLC New· Q1 2026 +317K Q1 2026
Apis Capital Advisors, LLC · New
Change +238K Date Q1 2026
Apis Capital Advisors, LLC New· Q1 2026 +238K Q1 2026
Two Sigma Investments, LP · Added
Change +208K Δ Own +81.2% Date Q1 2026
Two Sigma Investments, LP Added· Q1 2026 +208K +81.2% Q1 2026
Woodline Partners LP · Reduced
Change −157K Date Q1 2026
Woodline Partners LP Reduced· Q1 2026 −157K Q1 2026
Voloridge Investment Management, LLC · Reduced
Change −150K Date Q1 2026
Voloridge Investment Management, LLC Reduced· Q1 2026 −150K Q1 2026
Qube Research & Technologies Ltd · Added
Change +146K Date Q1 2026
Qube Research & Technologies Ltd Added· Q1 2026 +146K Q1 2026
Soleus Capital Management, L.P. · Reduced
Change −129K Date Q1 2026
Soleus Capital Management, L.P. Reduced· Q1 2026 −129K Q1 2026
HSBC Holdings PLC · New
Change +126K Date Q1 2026
HSBC Holdings PLC New· Q1 2026 +126K Q1 2026
Citadel Advisors LLC Added· Q1 2026 +124K +113.2% Q1 2026
Data through Q1 2026 · filed Jun 2, 2026
15 of 190

Famous investor activity in AnaptysBio, Inc. (ANAB)

AnaptysBio, Inc. (ANAB) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Schmid John P. · Director 2 operations 0
Owned 0 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Schmid John P. Director 2 operations 0 0 Jun 15, 2026 Jun 17, 2026
Renton Hollings · Director 2 operations 0
Owned 0 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Renton Hollings Director 2 operations 0 0 Jun 15, 2026 Jun 17, 2026
Orwin John A. · Director 2 operations 0
Owned 0 Trade date Jun 15, 2026 Filed date Jun 17, 2026
Orwin John A. Director 2 operations 0 0 Jun 15, 2026 Jun 17, 2026
Hughes Owen · Director Grant (A) 11K
Owned 11K Trade date May 11, 2026 Filed date May 13, 2026
Hughes Owen Director Grant (A) 11K 11K May 11, 2026 May 13, 2026
Murphy Christopher M. · CFO Grant (A) 26K
Owned 26K Trade date May 11, 2026 Filed date May 13, 2026
Murphy Christopher M. CFO Grant (A) 26K 26K May 11, 2026 May 13, 2026
Gray Susannah · Director Grant (A) 11K
Owned 11K Trade date Apr 27, 2026 Filed date Apr 29, 2026
Gray Susannah Director Grant (A) 11K 11K Apr 27, 2026 Apr 29, 2026
Orwin John A. · Director 5 operations -55K
Owned 8K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Orwin John A. Director 5 operations -55K 8K Apr 20, 2026 Apr 22, 2026
Orwin John A. · Director 5 operations 55K
Owned 8K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Orwin John A. Director 5 operations 55K 8K Apr 20, 2026 Apr 22, 2026
Schmid John P. · Director 10 operations -107K
Owned 6K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Schmid John P. Director 10 operations -107K 6K Apr 20, 2026 Apr 22, 2026
Schmid John P. · Director 10 operations 107K
Owned 6K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Schmid John P. Director 10 operations 107K 6K Apr 20, 2026 Apr 22, 2026
Renton Hollings · Director 10 operations -107K
Owned 6K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Renton Hollings Director 10 operations -107K 6K Apr 20, 2026 Apr 22, 2026
Renton Hollings · Director 10 operations 107K
Owned 6K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Renton Hollings Director 10 operations 107K 6K Apr 20, 2026 Apr 22, 2026
Faga Daniel · Director 7 operations -1.0M
Owned 133K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Faga Daniel Director 7 operations -1.0M 133K Apr 20, 2026 Apr 22, 2026
Faga Daniel · Director 7 operations 1.0M
Owned 133K Trade date Apr 20, 2026 Filed date Apr 22, 2026
Faga Daniel Director 7 operations 1.0M 133K Apr 20, 2026 Apr 22, 2026
Schmid John P. · Director 3 operations −$1.2M
Price $55.71–$57.40 Qty −21K Owned 32K Trade date Mar 30, 2026 Filed date Apr 1, 2026
Schmid John P. Director 3 operations $55.71–$57.40 −21K −$1.2M 32K Mar 30, 2026 Apr 1, 2026
15 of 76
15 of 76 Sign in to continue to older insider transactions.

AnaptysBio, Inc. (ANAB) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
Ecor1 Capital, LLC 7.8M
% of shares outstanding 25.8% Filing date Aug 16, 2024
Ecor1 Capital, LLC 7.8M 25.8% Aug 16, 2024
FMR LLC 2.9M
% of shares outstanding 10.5% Filing date Jul 10, 2024
FMR LLC 2.9M 10.5% Jul 10, 2024
Tang Capital Partners LP 2.0M
% of shares outstanding 7.3% Filing date Feb 14, 2024
Tang Capital Partners LP 2.0M 7.3% Feb 14, 2024
BlackRock Inc. 1.8M
% of shares outstanding 6.8% Filing date Jan 26, 2024
BlackRock Inc. 1.8M 6.8% Jan 26, 2024
Sirenia Capital Management LP 1.9M
% of shares outstanding 6.7% Filing date May 15, 2026
Sirenia Capital Management LP 1.9M 6.7% May 15, 2026
Vanguard Group Inc 1.4M
% of shares outstanding 5.2% Filing date Feb 13, 2024
Vanguard Group Inc 1.4M 5.2% Feb 13, 2024
Federated Hermes, Inc. 1.4M
% of shares outstanding 4.9% Filing date Feb 9, 2023
Federated Hermes, Inc. 1.4M 4.9% Feb 9, 2023
Tang Capital Management LLC 1.3M
% of shares outstanding 4.4% Filing date Nov 14, 2024
Tang Capital Management LLC 1.3M 4.4% Nov 14, 2024
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AnaptysBio, Inc. (ANAB) ownership FAQ

Who owns ANAB?

190 reporting institutions disclosed ANAB position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.