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Casdin Capital’s GeneDx Holdings WGS Stock Holding History

Casdin Capital’s Portfolio WGS Stock Details WGS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$193M Hold
3,007,164
– – 14.62% 2
2025
Q4 		$391M Hold
3,007,164
– – 24.29% 1
2025
Q3 		$324M Sell
3,007,164
-500,000
-14% -$54.5M 27.01% 1
2025
Q2 		$324M Hold
3,507,164
– – 29.48% 1
2025
Q1 		$311M Hold
3,507,164
– – 25.38% 1
2024
Q4 		$270M Hold
3,507,164
– – 17.94% 1
2024
Q3 		$149M Sell
3,507,164
-19,247
-0.5% -$650K 9.92% 3
2024
Q2 		$92.2M Buy
3,526,411
+390,000
+12% +$7.39M 7.04% 5
2024
Q1 		$28.6M Buy
3,136,411
+40,900
+1% +$246K 2.13% 15
2023
Q4 		$8.51M Hold
3,095,511
– – 0.84% 24
2023
Q3 		$11.3M Hold
3,095,511
– – 1.25% 20
2023
Q2 		$18.4M Buy
3,095,511
+2
+0% +$16 1.61% 21
2023
Q1 		$37.3M Buy
3,095,509
+2,597,403
+521% +$34.6M 3.07% 11
2022
Q4 		$4.34M Hold
498,106
– – 0.34% 38
2022
Q3 		$14.4M Hold
498,106
– – 0.95% 22
2022
Q2 		$20.7M Buy
498,106
+346,591
+229% +$23.5M 1.75% 16
2022
Q1 		$15.3M Hold
151,515
– – 0.69% 29
2021
Q4 		$22.3M Hold
151,515
– – 0.63% 34
2021
Q3 		$38M Buy
+151,515
New +$52M 0.94% 30

Other funds holding WGS

CM
Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
AIM
ARK Investment Management St. Petersburg, Florida $12.9B AUM 64.92% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $30.3B AUM 33.75% 1-Year Est. Return
ZDA
Zweig-DiMenna Associates New York $722M AUM 97.69% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
NAMA
Nikko Asset Management Americas New York $7.07B AUM 50.91% 1-Year Est. Return

Casdin Capital's WGS Position: Q1 2026 in Review

Casdin Capital held its GeneDx Holdings (WGS) position steady in Q1 2026 at 3,007,164 shares worth $193M. The position accounts for 14.62% of the portfolio, ranked #2.

Casdin Capital first reported a position in WGS in Q3 2021 and has held it in 19 quarters since. The position peaked at $391M in Q4 2025. 240 funds tracked by Wall St. Rank hold WGS as of Q1 2026.

  • Casdin Capital held 3,007,164 shares of GeneDx Holdings worth $193M as of Q1 2026.
  • Casdin Capital left its GeneDx Holdings share count unchanged in Q1 2026.
  • GeneDx Holdings made up 14.62% of Casdin Capital's portfolio in Q1 2026, its #2 holding.
  • Casdin Capital first reported a position in GeneDx Holdings in Q3 2021 and has held it in 19 quarters since.
  • Casdin Capital's GeneDx Holdings position peaked at $391M in Q4 2025.
  • 240 funds tracked by Wall St. Rank held GeneDx Holdings as of Q1 2026.

Based on Casdin Capital's 13F filing for Q1 2026, filed 15 May 2026.