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Castleark Management’s GeneDx Holdings WGS Stock Holding History

Castleark Management’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 		– Sell
-74,016
Closed -$9.63M – 344
2025
Q4 		$9.63M Buy
74,016
+2,230
+3% +$306K 0.28% 68
2025
Q3 		$7.73M Buy
+71,786
New +$7.82M 0.22% 97
2025
Q2 		– Sell
-47,810
Closed -$4.23M – 340
2025
Q1 		$4.23M Sell
47,810
-13,900
-23% -$1.21M 0.15% 135
2024
Q4 		$4.74M Buy
+61,710
New +$4.31M 0.17% 141

Other funds holding WGS

CM
Corvex Management New York $2.52B AUM 25.53% 1-Year Est. Return
CC
Casdin Capital New York $1.32B AUM 76.62% 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

Castleark Management's WGS Position: Q1 2026 in Review

Castleark Management sold out of GeneDx Holdings (WGS) in Q1 2026, closing a stake of 74,016 shares — an estimated $9.63M sold.

Castleark Management first reported a position in WGS in Q4 2024 and held it in 4 quarters. The position peaked at $9.63M in Q4 2025. 240 funds tracked by Wall St. Rank hold WGS as of Q1 2026.

  • Castleark Management reported no remaining GeneDx Holdings position as of Q1 2026 after selling out during the quarter.
  • Castleark Management sold 74,016 GeneDx Holdings shares in Q1 2026, an estimated $9.63M.
  • Castleark Management first reported a position in GeneDx Holdings in Q4 2024 and held it in 4 quarters.
  • Castleark Management's GeneDx Holdings position peaked at $9.63M in Q4 2025.
  • 240 funds tracked by Wall St. Rank held GeneDx Holdings as of Q1 2026.

Based on Castleark Management's 13F filing for Q1 2026, filed 15 May 2026.