Anaptysbio, Inc (ANAB) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

29,018,000Shares Outstanding
29,114,490Shares held by institutions
$1,598,676,641Value of institutional holdings
100.33%Institutional ownership %
-1.56%Shares Changed QoQ
173No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

Anaptysbio, Inc (NASDAQ:ANAB) appears in 173 institutional 13F filings for the quarter ending December 2025.

203 Institutional Holders

29,114,490 Total Shares Held
Download Data
Owner Name Date Shares Held Change (QoQ) Change (%) Value (USD)
EcoR1 Capital, LLC 31 Mar, 2026 7,880,094 0 0.00% $437,030,013.00
BlackRock, Inc. 31 Mar, 2026 1,681,380 -53,050 -3.06% $93,249,334.00
TANG CAPITAL MANAGEMENT LLC 31 Mar, 2026 1,330,879 -1,208 -0.09% $73,810,549.00
Morgan Stanley 31 Mar, 2026 993,905 -40,657 -3.93% $55,121,984.00
State Street Corp 31 Mar, 2026 992,445 -61,029 -5.79% $55,041,000.00
Affinity Asset Advisors, LLC 31 Mar, 2026 940,000 495,308 111.38% $52,132,400.00
VANGUARD CAPITAL MANAGEMENT LLC 31 Mar, 2026 853,151 853,151 0.00% $47,315,754.00
Sanofi 31 Mar, 2026 821,917 0 0.00% $30,384,545.00
Palo Alto Investors LP 31 Mar, 2026 638,161 -51,871 -7.52% $35,392,409.00
683 Capital Management, LLC 31 Mar, 2026 625,000 -23,093 -3.56% $34,662,500.00
D. E. Shaw & Co., Inc. 31 Mar, 2026 579,296 -90,992 -13.58% $32,127,756.00
First Light Asset Management, LLC 31 Mar, 2026 565,431 -80,807 -12.50% $31,358,803.00
GEODE CAPITAL MANAGEMENT, LLC 31 Mar, 2026 520,241 50,747 10.81% $28,858,610.00
VANGUARD PORTFOLIO MANAGEMENT LLC 31 Mar, 2026 519,870 519,870 0.00% $28,831,990.00
Bank Of America Corp /De/ 31 Mar, 2026 501,086 370,319 283.19% $27,790,230.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 31 Mar, 2026 492,120 -67,624 -12.08% $27,292,975.00
MILLENNIUM MANAGEMENT LLC 31 Mar, 2026 475,572 -337,999 -41.55% $26,375,223.00
FMR LLC 31 Mar, 2026 472,704 445,596 1,643.78% $26,216,167.00
TWO SIGMA INVESTMENTS, LP 31 Mar, 2026 465,083 208,448 81.22% $25,793,503.00
Federated Hermes, Inc. 31 Mar, 2026 364,121 64,705 21.61% $20,194,150.00