ANAB

Anaptysbio INC

+$96.7M

Net Activity

Institutions Holding

207

Popularity Rank

#2799

Avg Weight

0.27%

Total Value

$1.5B

Ownership Trend

207 institutions currently hold ANAB, with 102 net buyers and 94 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

94

Net Buying Institutions

102

Key Holders

Key Holders

Top 5 by Value

EC
EcoR1 Capital, LLC
$437.0M
BI
BlackRock, Inc.
$93.2M
TC
Tang Capital Management LLC
$73.8M
MS
Morgan Stanley
$55.1M
SS
State Street CORP
$55.0M

Top 5 by Conviction

EC
EcoR1 Capital, LLC
18.55%
SA
Sanofi
9.04%
PA
Palo Alto Investors LP
5.41%
TC
Tang Capital Management LLC
3.75%
FL
First Light Asset Management, LLC
2.81%
View all 207 holding institutions

Quarterly Activity

Recent Activity

+$356.6M

Total Buy Value

$806.2M

Total Sell Value

New buy44
Trim72
Add58
Sold out22

102

Net Buyers

94

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

15

Filings (90d)

$12.97M

Total Est. Value

238K shares

Planned Shares

Last Filed 2026-07-13
FilerFiling DateEst. Value
JOE ANTHONY WARE2026-07-13$718K
Ware J. Anthony2026-06-30$409K
MULROY DENNIS2026-06-29$601K
MULROY DENNIS2026-06-26$608K
MULROY DENNIS2026-06-17$51K
MULROY DENNIS2026-06-16$76K
MULROY DENNIS2026-06-15$1.15M
MULROY DENNIS2026-06-12$1.11M
MULROY DENNIS2026-06-11$1.85M
MULROY DENNIS2026-06-10$1.05M

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding ANAPTYSBIO INC (ANAB)?
Major stakeholders currently include EcoR1 Capital, LLC ($437.0M), BlackRock, Inc. ($93.2M), Tang Capital Management LLC ($73.8M). Based on the latest 13F filings, there are a total of 207 tracked investment funds and institutions maintaining positions in ANAB.
What is the overall institutional sentiment toward ANAB recently?
Institutional sentiment appears Bullish (Net Buying). During the most recent reporting quarter, the stock experienced a net inflow of $96.7M, driven by 102 managers accumulating shares while 94 reduced their exposure.
Which institutions have been selling or reducing their ANAB positions?
In the latest period, 72 funds trimmed their holdings, and 22 managers completely exited their positions. The aggregate reported sell value was $806.2M.
Are there any notable investors adding ANAB to their portfolios?
Yes, buying activity remains notable. 44 institutions opened new positions in {ticker}, and 58 existing holders added to their shares. The total reported buy value for the quarter amounted to $356.6M.

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