Casdin Capital, LLC Insider Trading Activity

Institutional FilerDirector ยท CIK 1534261

4

Total trades

$81.9M

Total volume

May 20, 2026

Last activity

WGS

GeneDx Holdings Corp.

Casdin Capital, LLC, an institutional filer, recorded 3 transactions over the last 12 months across 1 company totaling $21.5M.

Activity concentrated in WGS with 3 filings. The largest single transaction was a purchase of WGS for $7.9M on May 19, 2026.

Performance Scorecard

Forward stock performance after each transaction by Casdin Capital, LLC. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.

PERIODAVG BUY RETURNAVG SELL AVOIDEDSUCCESS RATETRADES
30 days+32.5%-7.3%75%4
90 days+79.3%-10.9%75%4
120 daysโ€”-15.9%0%1

Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.

Price & Trades

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WGS ยท GeneDx Holdings Corp.

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Recent Trades

DATETICKERTYPESHARESPRICEVALUEฮ” OWNEDROLEFILING
May 20, 2026
WGSBuy140,000$43.81$6.1M+4.2%Director
May 19, 2026
WGSBuy185,000$42.60$7.9M+5.8%Director
May 18, 2026
WGSBuy175,000$42.55$7.4M+5.8%Director
Aug 22, 2025
WGSSell500,000$120.90$60.5Mโˆ’14.3%Director

Top Companies Traded

TICKERCOMPANYTRADESTOTAL VOLUME
WGSGeneDx Holdings Corp.4$81.9M

Other insiders at GeneDx Holdings Corp.

6 other tracked filers at WGS.