XT
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XTX Topco’s Zai Lab ZLAB Stock Holding History

XTX Topco’s Portfolio ZLAB Stock Details ZLAB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$885K Buy
+47,072
New +$872K 0.02% 1516
2025
Q1 		– Sell
-13,487
Closed -$353K – 3216
2024
Q4 		$353K Sell
13,487
-18,131
-57% -$503K 0.03% 1073
2024
Q3 		$763K Buy
31,618
+2,335
+8% +$44.1K 0.06% 555
2024
Q2 		$507K Buy
29,283
+4,710
+19% +$82.8K 0.04% 654
2024
Q1 		$394K Buy
24,573
+15,047
+158% +$317K 0.05% 628
2023
Q4 		$260K Buy
+9,526
New +$251K 0.06% 743
2023
Q3 		– Sell
-14,104
Closed -$391K – 2076
2023
Q2 		$391K Buy
+14,104
New +$461K 0.07% 534
2021
Q4 		– Sell
-4,999
Closed -$527K – 1047
2021
Q3 		$527K Buy
+4,999
New +$718K 0.18% 176

Other funds holding ZLAB

RI
RTW Investments New York $10B AUM 135.35% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
BAMCO Inc
BAMCO Inc New York $33.1B AUM 11.16% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RSCM
Rock Springs Capital Management Baltimore, Maryland $1.7B AUM 93.03% 1-Year Est. Return
CWG
C WorldWide Group Copenhagen, Denmark $4.66B AUM 11.67% 1-Year Est. Return

XTX Topco's ZLAB Position: Q1 2026 in Review

XTX Topco opened a new position in Zai Lab (ZLAB) in Q1 2026: 47,072 shares worth $885K. The stake represents 0.02% of the portfolio and ranks #1516 among its holdings. This is a return to the name: XTX Topco previously reported a position in ZLAB as recently as Q4 2024.

XTX Topco first reported a position in ZLAB in Q3 2021 and has held it in 8 quarters since. 99 funds tracked by Wall St. Rank hold ZLAB as of Q1 2026.

  • XTX Topco held 47,072 shares of Zai Lab worth $885K as of Q1 2026.
  • Zai Lab was a new XTX Topco position in Q1 2026.
  • Zai Lab made up 0.02% of XTX Topco's portfolio in Q1 2026, its #1516 holding.
  • XTX Topco first reported a position in Zai Lab in Q3 2021 and has held it in 8 quarters since.
  • 99 funds tracked by Wall St. Rank held Zai Lab as of Q1 2026.

Based on XTX Topco's 13F filing for Q1 2026, filed 15 May 2026.