SEI Investments
ZBIO

SEI Investments’s Zenas BioPharma ZBIO Stock Holding History

SEI 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
Q1 		$242K Buy
+12,386
New +$278K ﹤0.01% 2901
2025
Q3 		– Sell
-12,142
Closed -$118K – 2921
2025
Q2 		$118K Buy
12,142
+186
+2% +$1.81K ﹤0.01% 2665
2025
Q1 		$94.5K Buy
+11,956
New +$93.6K ﹤0.01% 2605

Other funds holding ZBIO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
SOCM
SR One Capital Management Wayne, Pennsylvania $915M AUM 209.71% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
ES
Enavate Sciences Menlo Park, California $352M AUM 220.14% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $28.2B AUM 115.26% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.38B AUM 407.79% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
NA
NVP Associates Menlo Park, California $176M AUM 208.78% 1-Year Est. Return

SEI Investments's ZBIO Position: Q1 2026 in Review

SEI Investments opened a new position in Zenas BioPharma (ZBIO) in Q1 2026: 12,386 shares worth $242K. The stake represents ﹤0.01% of the portfolio and ranks #2901 among its holdings. This is a return to the name: SEI Investments previously reported a position in ZBIO as recently as Q2 2025.

SEI Investments first reported a position in ZBIO in Q1 2025 and has held it in 3 quarters since. 139 funds tracked by Wall St. Rank hold ZBIO as of Q1 2026.

  • SEI Investments held 12,386 shares of Zenas BioPharma worth $242K as of Q1 2026.
  • Zenas BioPharma was a new SEI Investments position in Q1 2026.
  • Zenas BioPharma made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #2901 holding.
  • SEI Investments first reported a position in Zenas BioPharma in Q1 2025 and has held it in 3 quarters since.
  • 139 funds tracked by Wall St. Rank held Zenas BioPharma as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.