ZBIO

Zenas Biopharma Inc

Latest period2026 - Q1Total superinvestors140

Top 10 Superinvestors by Shares Owned

This chart shows the top 10 superinvestors based on the number of shares they owned in 2025-Q4 and 2026-Q1. According to the most recent SEC 13F filing, 140 superinvestors own shares of Zenas Biopharma Inc (ZBIO), although recent data may remain incomplete due to pending filings.

Quarter-over-Quarter Change (%)

This chart highlights the quarter-over-quarter change (%) in the number of superinvestors holding Zenas Biopharma Inc (ZBIO), the total shares they held, and the total reported dollar value. It gives a clear view of whether there is ongoing momentum. The dotted lines at the top and bottom adjust longer bars to keep smaller data points visible for better comparison.

Superinvestors' Activity (%) Over the Last 4 Quarters

This chart shows superinvestors' activity with Zenas Biopharma Inc (ZBIO) over the last four quarters, highlighting the percentage of investors who added, increased, decreased, held, or exited their positions, revealing shifts in sentiment over time.

Superinvestors' Past Actions

This chart displays superinvestors' past actions with Zenas Biopharma Inc (ZBIO) over the last 10 years (40 quarters), helping to visualize the collective momentum and investment trends over time.

Superinvestors ownership

SuperinvestorPortfolio %Reported Value
Stephanie J. Brown@Fmr Llc
Recent Activity
Increased 17.89%
0.01%
$177.553M
9.082M shares@ 19.56 avg price
Sasha Keough@Sr One Capital Management, Lp
Recent Activity
10.76%
$98.49M
5.038M shares@ 19.56 avg price
Stephanie Brecher@Nea Management Company, Llc
Recent Activity
Increased 14.2%
4.48%
$78.654M
4.023M shares@ 19.55 avg price
James P. Boylan@Enavate Sciences Gp, Llc
Recent Activity
21.8%
$76.62M
3.919M shares@ 19.55 avg price
Megan Dolan@Federated Hermes, Inc.
Recent Activity
Increased 15.16%
0.1%
$61.133M
3.127M shares@ 19.55 avg price
Samir Ayub@Polar Capital Holdings Plc
Recent Activity
Increased 140.97%
0.18%
$49.822M
2.548M shares@ 19.55 avg price
Robert W. Lovelace@Capital International Investors
Recent Activity
New Position
0.02%
$47.585M
2.434M shares@ 19.55 avg price
Erin O'Connor@Fairmount Funds Management Llc
Recent Activity
Increased 6.8%
3.34%
$46.119M
2.359M shares@ 19.56 avg price
Spencer Fleming@Blackrock, Inc.
Recent Activity
Increased 15.28%
0.01%
$39.834M
2.038M shares@ 19.55 avg price
Matthew De Dominicis@Nvp Associates, Llc
Recent Activity
20.41%
$35.942M
1.838M shares@ 19.55 avg price

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