Casdin fund buys GeneDx shares in open market
GeneDx Holdings Corp. reported an insider-related increase in holdings by entities associated with Casdin Capital.
Rhea-AI Filing Summary
GeneDx Holdings Corp. reported an insider-related increase in holdings by entities associated with Casdin Capital. Casdin Partners Master Fund, L.P. made open-market purchases of 150,000 Class A common shares at $56.4449 per share on June 4, 2026 and 50,000 shares at $52.8566 per share on June 5, 2026, totaling 200,000 shares. After these trades, the Master Fund held 3,707,164 shares indirectly. Additional positions as of June 4, 2026 included 333,144 shares owned by the Master Fund, 19,247 shares owned by the GP entity, and 20,517 shares owned directly by Eli Casdin, each as separate holdings.
Positive
- None.
Negative
- None.
Insider Trade Summary
Net Buyer: 200,000 shares
Net Buy
5 txns
Insider
Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P., Casdin Partners GP, LLC
Role
Director, 10% Owner | Director, 10% Owner | Director, 10% Owner | Director, 10% Owner
Bought
200,000 shs ($11.11M)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Purchase | Class A Common Stock, par value $0.0001 per share | 50,000 | $52.8566 | $2.64M |
| Purchase | Class A Common Stock, par value $0.0001 per share | 150,000 | $56.4449 | $8.47M |
| holding | Class A Common Stock, par value $0.0001 per share | -- | -- | -- |
| holding | Class A Common Stock, par value $0.0001 per share | -- | -- | -- |
| holding | Class A Common Stock, par value $0.0001 per share | -- | -- | -- |
Holdings After Transaction:
Class A Common Stock, par value $0.0001 per share — 4,059,555 shares (Indirect, See footnote);
Class A Common Stock, par value $0.0001 per share — 20,517 shares (Direct)
Footnotes (4)
- F1. The securities are owned directly by the Casdin Partners Master Fund, L.P. (the "Master Fund") and may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC, the investment adviser to the Master Fund ("Casdin"), (ii) Casdin Partners GP, LLC, the general partner of the Master Fund (the "GP"), and (iii) Eli Casdin, the managing member of Casdin and the GP.
- F2. The securities are owned directly by Eli Casdin.
- F3. The securities are owned directly by the GP and may be deemed to be indirectly beneficially owned by Eli Casdin, the managing member of the GP.
- F4. The securities are owned directly by CMLS Holdings LLC ("CMLS Holdings"). The Board of Managers of CMLS Holdings includes Eli Casdin, who, as a member of the Board of Managers of CMLS Holdings, shares voting and investment discretion with respect to the common stock held by CMLS Holdings.
Key Figures
Open-market purchase (June 4, 2026): 150,000 shares at $56.4449/share
Open-market purchase (June 5, 2026): 50,000 shares at $52.8566/share
Master Fund holding after trades: 3,707,164 shares
+3 more
6 metrics
Open-market purchase (June 4, 2026)
150,000 shares at $56.4449/share
Non-derivative Class A common stock buy by Master Fund
Open-market purchase (June 5, 2026)
50,000 shares at $52.8566/share
Additional non-derivative Class A common stock buy
Master Fund holding after trades
3,707,164 shares
Total Class A common shares indirectly held post-purchases
GP entity holding
19,247 shares
Class A common shares owned directly by Casdin Partners GP, LLC
Direct holding by Eli Casdin
20,517 shares
Class A common shares owned directly as of June 4, 2026
Additional Master Fund position
333,144 shares
Separate Class A common stock holding as of June 4, 2026
Key Terms
open-market purchase, indirect ownership, beneficially owned, ten percent owner, +1 more
5 terms
open-market purchase financial
"transaction_action: "open-market purchase" for non-derivative common stock"
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
indirect ownership financial
"direct_or_indirect: "I" and nature_of_ownership: "See footnote""
beneficially owned financial
"may be deemed to be indirectly beneficially owned by (i) Casdin Capital, LLC"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
ten percent owner financial
"reporting person flags include is_ten_percent_owner: 1 for each entity"
Class A Common Stock financial
"security_title: "Class A Common Stock, par value $0.0001 per share""
Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
Which entities are associated with the GeneDx (WGS) insider holdings in this Form 4?
Holdings are reported for Casdin Partners Master Fund, L.P., Casdin Capital, LLC, Casdin Partners GP, LLC, and Eli Casdin. Footnotes state the Master Fund owns certain shares directly, with other entities and Eli Casdin deemed to have indirect beneficial ownership relationships.
Are the GeneDx (WGS) insider trades classified as derivative or non-derivative?
The reported insider trades are non-derivative transactions in GeneDx Class A common stock. Both purchases are labeled as open-market or private transaction purchases, with no associated options, warrants, or other derivative securities listed in the transaction data.
AI-generated analysis. How Rhea-AI works. Not financial advice.
