Fidelity Investments
ZBIO

Fidelity Investments’s Zenas BioPharma ZBIO Stock Holding History

Fidelity Investments’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 		$241M Buy
9,506,701
+424,701
+5% +$8.44M 0.01% 849
2026
Q1 		$178M Buy
9,082,000
+1,377,745
+18% +$30.9M 0.01% 919
2025
Q4 		$280M Buy
7,704,255
+2,883,885
+60% +$94.8M 0.01% 730
2025
Q3 		$107M Buy
4,820,370
+1,496,836
+45% +$24.4M 0.01% 1152
2025
Q2 		$32.2M Buy
3,323,534
+471,163
+17% +$4.59M ﹤0.01% 1547
2025
Q1 		$22.5M Buy
2,852,371
+1,070,656
+60% +$8.38M ﹤0.01% 1636
2024
Q4 		$14.6M Sell
1,781,715
-218,285
-11% -$3.4M ﹤0.01% 1828
2024
Q3 		$33.8M Buy
+2,000,000
New +$36M ﹤0.01% 1529

Other funds holding ZBIO

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
RPSM
Royalty Pharma Sub-Manager New York $242M AUM
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

Fidelity Investments's ZBIO Position: Q2 2026 in Review

Fidelity Investments increased its Zenas BioPharma (ZBIO) stake by 4.7% in Q2 2026, buying an estimated $8.44M and bringing the position to 9,506,701 shares worth $241M. The position accounts for 0.01% of the portfolio, ranked #849.

Fidelity Investments first reported a position in ZBIO in Q3 2024 and has held it in 8 quarters since. The position peaked at $280M in Q4 2025. 144 funds tracked by Wall St. Rank hold ZBIO as of Q2 2026.

  • Fidelity Investments held 9,506,701 shares of Zenas BioPharma worth $241M as of Q2 2026.
  • Fidelity Investments bought 424,701 Zenas BioPharma shares in Q2 2026, an estimated $8.44M.
  • Zenas BioPharma made up 0.01% of Fidelity Investments's portfolio in Q2 2026, its #849 holding.
  • Fidelity Investments first reported a position in Zenas BioPharma in Q3 2024 and has held it in 8 quarters since.
  • Fidelity Investments's Zenas BioPharma position peaked at $280M in Q4 2025.
  • 144 funds tracked by Wall St. Rank held Zenas BioPharma as of Q2 2026.

Based on Fidelity Investments's 13F filing for Q2 2026, filed 13 Aug 2026.