Vanguard Portfolio Management
ZBIO

Vanguard Portfolio Management’s Zenas BioPharma ZBIO Stock Holding History

Vanguard Portfolio Management’s Portfolio ZBIO Stock Details ZBIO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$7.74M Buy
304,870
+53,460
+21% +$1.06M ﹤0.01% 2285
2026
Q1 		$4.92M Buy
+251,410
New +$5.64M ﹤0.01% 2328

Other funds holding ZBIO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
SOCM
SR One Capital Management Wayne, Pennsylvania $1.04B AUM 262.99% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $345M AUM 134.64% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $69.6B AUM 42.52% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.51B AUM 546.08% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Vanguard Portfolio Management's ZBIO Position: Q2 2026 in Review

Vanguard Portfolio Management increased its Zenas BioPharma (ZBIO) stake by 21% in Q2 2026, buying an estimated $1.06M and bringing the position to 304,870 shares worth $7.74M. The position accounts for ﹤0.01% of the portfolio, ranked #2285.

Vanguard Portfolio Management first reported a position in ZBIO in Q1 2026 and has held it in 2 quarters since. 143 funds tracked by Wall St. Rank hold ZBIO as of Q2 2026.

  • Vanguard Portfolio Management held 304,870 shares of Zenas BioPharma worth $7.74M as of Q2 2026.
  • Vanguard Portfolio Management bought 53,460 Zenas BioPharma shares in Q2 2026, an estimated $1.06M.
  • Zenas BioPharma made up ﹤0.01% of Vanguard Portfolio Management's portfolio in Q2 2026, its #2285 holding.
  • Vanguard Portfolio Management first reported a position in Zenas BioPharma in Q1 2026 and has held it in 2 quarters since.
  • 143 funds tracked by Wall St. Rank held Zenas BioPharma as of Q2 2026.

Based on Vanguard Portfolio Management's 13F filing for Q2 2026, filed 13 Aug 2026.