Skip to main content

STATE OF WISCONSIN INVESTMENT BOARD

Position in ZBIO — Zenas BioPharma, Inc.

CIK 854157 MADISON, WI

Position in ZBIO

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$406,913
+$35,789 QoQ
Shares Held
20,814
+103.6% QoQ
Ownership
0.033%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in ZBIO Over Time

Shares Held

Position Value (USD)

Position in Biotechnology

Healthcare · as of Mar 31, 2026

STATE OF WISCONSIN INVESTMENT BOARD holds $473,382,633 across 164 Biotechnology names. ZBIO ranks #133 (0.1% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in ZBIO

Export CSV
2 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $406,913 20,814
2025-12-31 $371,124 10,221