ZBIO

Zenas BioPharma, Inc. Common Stock
ZBIO

Overview Fund Activity

70 hedge funds and large institutions have $328M invested in Zenas BioPharma, Inc. Common Stock in 2025 Q2 according to their latest regulatory filings, with 10 funds opening new positions, 33 increasing their positions, 11 reducing their positions, and 5 closing their positions.

Holders
70
Holders Change
+3
Holders Change %
+4.48%
% of All Funds
0.94%
Holding in Top 10
4
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
10
Increased
33
Reduced
11
Closed
5
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Federated Hermes
1
Federated Hermes
Pennsylvania
$18M
2
Fidelity Investments
2
Fidelity Investments
Massachusetts
$32.2M
3
Citadel Advisors
3
Citadel Advisors
Florida
$2.85M
4
SAM
4
Sectoral Asset Management
Quebec, Canada
$2.04M
5
NMC
5
NEA Management Company
Maryland
$26.5M

Top Sellers

1
RSCM
1
Rock Springs Capital Management
Maryland
$6.21M
2
EP
2
Eversept Partners
New York
$3.15M
3
CCM
3
Catalio Capital Management
New York
$2.09M
4
JFG
4
Jefferies Financial Group
New York
$0
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$4.7M
Name Market Value Shares Shares
Change 		Shares
Change %
SOCM
1
SR One Capital Management
Pennsylvania
$47.6M 4,911,539 – –
ES
2
Enavate Sciences
California
$36.4M 3,761,359 – –
Fidelity Investments
3
Fidelity Investments
Massachusetts
$32.2M 3,323,534 +471,163 +17%
NMC
4
NEA Management Company
Maryland
$26.5M 2,733,719 +119,771 +5%
NHAS
5
Novo Holdings A/S
Denmark
$21.8M 2,250,000 +35,033 +2%
FFM
6
Fairmount Funds Management
Pennsylvania
$18.3M 1,892,806 – –
Federated Hermes
7
Federated Hermes
Pennsylvania
$18M 1,861,838 +703,838 +61%
NA
8
NVP Associates
California
$17.8M 1,838,482 – –
DM
9
Deerfield Management
New York
$15.1M 1,562,942 – –
VC
10
Vivo Capital
California
$11.5M 1,183,260 – –
BlackRock
11
BlackRock
New York
$10.6M 1,095,609 +81,499 +8%
ACH
12
ArrowMark Colorado Holdings
Colorado
$10.6M 1,094,338 -3,031 -0.3%
Vanguard Group
13
Vanguard Group
Pennsylvania
$9.61M 992,212 +16,306 +2%
Wellington Management Group
14
Wellington Management Group
Massachusetts
$8.52M 878,918 +5,295 +0.6%
PBPIA
15
Pivotal bioVenture Partners Investment Advisor
California
$7.55M 779,045 +42,400 +6%
RSCM
16
Rock Springs Capital Management
Maryland
$6.21M 640,467 -238,200 -27%
T. Rowe Price Associates
17
T. Rowe Price Associates
Maryland
$4.7M 485,202 -32,404 -6%
Geode Capital Management
18
Geode Capital Management
Massachusetts
$3.62M 373,617 +16,461 +5%
EP
19
Eversept Partners
New York
$3.15M 325,479 -120,109 -27%
State Street
20
State Street
Massachusetts
$3.01M 310,236 +44,036 +17%
Citadel Advisors
21
Citadel Advisors
Florida
$2.85M 293,785 +293,785 New
CCM
22
Catalio Capital Management
New York
$2.09M 215,314 -79,834 -27%
SAM
23
Sectoral Asset Management
Quebec, Canada
$2.04M 210,625 +210,625 New
Schroder Investment Management Group
24
Schroder Investment Management Group
United Kingdom
$1.48M 154,916 -9,119 -6%
Morgan Stanley
25
Morgan Stanley
New York
$1.2M 124,301 +46,391 +60%
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