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AnaptysBio
ANAB

Overview Fund Activity

153 hedge funds and large institutions have $743M invested in AnaptysBio in 2025 Q1 according to their latest regulatory filings, with 45 funds opening new positions, 44 increasing their positions, 43 reducing their positions, and 26 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
153
Holders Change
+18
Holders Change %
+13.33%
% of All Funds
2.08%
Holding in Top 10
5
Holding in Top 10 Change
+3
Holding in Top 10 Change %
+150%
% of All Funds
0.07%
New
45
Increased
44
Reduced
43
Closed
26
Calls
$5.68M
Puts
$5.12M
Net Calls
+$558K
Net Calls Change
+$13.9M

Top Buyers

1
FLAM
First Light Asset Management
Minnesota
+$70M
2
Point72 Asset Management
Point72 Asset Management
Connecticut
+$44M
3
Bank of America
Bank of America
North Carolina
+$20.9M
4
SI
Sofinnova Investments
California
+$19.1M
5
Citigroup
Citigroup
New York
+$18.9M

Top Sellers

1
FFM
Fairmount Funds Management
Pennsylvania
-$24.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$20.9M
3
FLSM
Frazier Life Sciences Management
California
-$20.8M
4
CCM
Camber Capital Management
Massachusetts
-$9.3M
5
State Street
State Street
Massachusetts
-$7.9M
Name Holding Trade Value Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$146M +$124K +6,646 +0.1%
FLAM
2
First Light Asset Management
Minnesota
$86.1M +$70M +3,764,720 +433%
Point72 Asset Management
3
Point72 Asset Management
Connecticut
$44M +$44M +2,368,370 New
BlackRock
4
BlackRock
New York
$40.5M -$6.91M -371,870 -15%
Fidelity Investments
5
Fidelity Investments
Massachusetts
$35.4M -$20.9M -1,125,082 -37%
TCM
6
Tang Capital Management
California
$28.7M +$3.98M +214,274 +16%
Vanguard Group
7
Vanguard Group
Pennsylvania
$28.2M -$6.07M -326,415 -18%
BCM
8
Boxer Capital Management
California
$24.2M – – –
SI
9
Sofinnova Investments
California
$21.6M +$19.1M +1,027,106 +773%
Bank of America
10
Bank of America
North Carolina
$21.3M +$20.9M +1,126,010 +6,273%
Citigroup
11
Citigroup
New York
$19.9M +$18.9M +1,017,470 +1,892%
PAI
12
Palo Alto Investors
California
$19M +$3.29M +176,742 +21%
T. Rowe Price Associates
13
T. Rowe Price Associates
Maryland
$17M -$185K -9,926 -1%
State Street
14
State Street
Massachusetts
$16M -$7.9M -425,032 -33%
S
15
Sanofi
France
$15.3M – – –
WP
16
Woodline Partners
California
$14.7M +$5.69M +305,950 +63%
CCM
17
Camber Capital Management
Massachusetts
$13.9M -$9.3M -500,000 -40%
Morgan Stanley
18
Morgan Stanley
New York
$9.38M +$5.37M +288,719 +134%
Geode Capital Management
19
Geode Capital Management
Massachusetts
$9.13M +$85K +4,570 +0.9%
UBS Group
20
UBS Group
Switzerland
$9.11M +$8.43M +453,667 +1,239%
Victory Capital Management
21
Victory Capital Management
Texas
$7.56M +$1.34M +71,980 +22%
Citadel Advisors
22
Citadel Advisors
Florida
$6.93M +$3.7M +198,842 +114%
5VM
23
5AM Venture Management
California
$6.65M – – –
Franklin Resources
24
Franklin Resources
California
$6.59M +$390 +21 +0%
Renaissance Technologies
25
Renaissance Technologies
New York
$6.3M +$2.7M +145,500 +75%
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