Citigroup
ZBIO

Citigroup’s Zenas BioPharma ZBIO Stock Holding History

Citigroup’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 		$193K Buy
9,888
+7,537
+321% +$169K ﹤0.01% 4019
2025
Q4 		$85.4K Buy
2,351
+2,163
+1,151% +$71.1K ﹤0.01% 4385
2025
Q3 		$4.17K Sell
188
-5,263
-97% -$85.7K ﹤0.01% 5278
2025
Q2 		$52.8K Sell
5,451
-5,359
-50% -$52.2K ﹤0.01% 4730
2025
Q1 		$85.4K Sell
10,810
-1,294
-11% -$10.1K ﹤0.01% 4683
2024
Q4 		$99.1K Buy
+12,104
New +$189K ﹤0.01% 4845

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

Citigroup's ZBIO Position: Q1 2026 in Review

Citigroup increased its Zenas BioPharma (ZBIO) stake by 321% in Q1 2026, buying an estimated $169K and bringing the position to 9,888 shares worth $193K. The position accounts for ﹤0.01% of the portfolio, ranked #4019.

Citigroup first reported a position in ZBIO in Q4 2024 and has held it in 6 quarters since. 139 funds tracked by Wall St. Rank hold ZBIO as of Q1 2026.

  • Citigroup held 9,888 shares of Zenas BioPharma worth $193K as of Q1 2026.
  • Citigroup bought 7,537 Zenas BioPharma shares in Q1 2026, an estimated $169K.
  • Zenas BioPharma made up ﹤0.01% of Citigroup's portfolio in Q1 2026, its #4019 holding.
  • Citigroup first reported a position in Zenas BioPharma in Q4 2024 and has held it in 6 quarters since.
  • 139 funds tracked by Wall St. Rank held Zenas BioPharma as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.