GeneDx Holdings Corp.
GeneDx Holdings Corp. (WGS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WGS · as of Sep 30, 2025
Ownership Breakdown
293
Institutional Holders
▲ 37 vs Q2
$3.24B
Total Inst. Value
▲ $335.41M vs Q2
29.69M
Shares Outstanding
freeFloat 87.69%
30.10M
13F Shares Held
▼ 1.40M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WGS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
CORVEX MANAGEMENT LP services-health services | 3.06M | 10.70% | 10.70% | $329.54B | Nov 14, 2025 | — held |
CASDIN CAPITAL, LLC services-health services | 3.01M | 10.52% | 10.52% | $323.99B | Nov 14, 2025 | ▼ 500.0K |
BLACKROCK, INC. services-health services | 1.53M | 5.35% | 5.35% | $164.74B | Nov 12, 2025 | ▲ 94.4K |
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC services-health services | 1.22M | 4.27% | 4.27% | $131.46B | Nov 12, 2025 | ▼ 411.3K |
VANGUARD GROUP INC services-health services | 1.17M | 4.10% | 4.10% | $126.10B | Nov 7, 2025 | ▼ 10.5K |
GOLDMAN SACHS GROUP INC services-health services | 1.17M | 4.09% | 4.09% | $125.86B | Nov 14, 2025 | ▲ 118.7K |
ORACLE INVESTMENT MANAGEMENT INC services-health services | 890.0K | 3.11% | 3.11% | $95.88B | Nov 19, 2025 | ▼ 32.5K |
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC services-health services | 823.6K | 2.88% | 2.88% | $88.73B | Nov 14, 2025 | ▲ 56.3K |
T. ROWE PRICE INVESTMENT MANAGEMENT, INC. services-health services | 718.0K | 2.51% | 2.51% | $77.36B | Nov 14, 2025 | ▼ 319.1K |
FRANKLIN RESOURCES INC services-health services | 681.4K | 2.38% | 2.38% | $73.41B | Nov 13, 2025 | ▲ 344.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
19
Increased
+2.00M shares4
New Positions
first time holders26
Decreased
−5.43M shares0
Sold Out
fully exitedNet shares change (top 50)
3.44M
+2.00M / −5.43M
Net new holders
-3
4 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WGS insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
27
Buy transactions
5
Sell transactions
5.40
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Casdin Capital, LLC
| Jun 5, 2026 | Purchase | 50,000 | $52.86 | $2.64M | 3.71M | Form 4 ↗ |
Casdin Capital, LLC
| Jun 4, 2026 | Purchase | 150,000 | $56.44 | $8.47M | 3.66M | Form 4 ↗ |
Casdin Capital, LLC
| May 20, 2026 | Purchase | 140,000 | $43.81 | $6.13M | 3.51M | Form 4 ↗ |
Casdin Capital, LLC
| May 19, 2026 | Purchase | 185,000 | $42.60 | $7.88M | 3.37M | Form 4 ↗ |
Casdin Capital, LLC
| May 18, 2026 | Purchase | 175,000 | $42.55 | $7.45M | 3.18M | Form 4 ↗ |
Meister Keith A.
| May 15, 2026 | Purchase | 18,865 | $39.83 | $751.4K | 4.78M | Form 4 ↗ |
Meister Keith A.
| May 15, 2026 | Purchase | 27,408 | $38.28 | $1.05M | 4.77M | Form 4 ↗ |
Meister Keith A.
| May 14, 2026 | Purchase | 51,893 | $39.92 | $2.07M | 4.74M | Form 4 ↗ |
Meister Keith A.
| May 14, 2026 | Purchase | 88,107 | $39.08 | $3.44M | 4.69M | Form 4 ↗ |
Meister Keith A.
| May 13, 2026 | Purchase | 70,926 | $39.45 | $2.80M | 4.60M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
GeneDx Holdings Corp. (WGS) is primarily owned by institutional investors, who hold approximately 100.0% of total shares outstanding. Company insiders own approximately 12.31%, while retail and public investors account for the remaining 0.00%.
The largest institutional shareholder of GeneDx Holdings Corp. is CORVEX MANAGEMENT LP, holding approximately 3.06 million shares — equal to 10.70% of outstanding shares — as of September 30, 2025.
A total of 293 institutional investors currently hold WGS stock, with a combined institutional value of approximately $3.24 billion as of the most recent 13F filing period.
Frequently asked questions
WGS ownershipGeneDx Holdings Corp. (WGS) is primarily owned by institutional investors, who hold approximately 100.0% of shares. The largest shareholder is CORVEX MANAGEMENT LP with a 10.70% stake. Company insiders hold 12.31%. Data sourced from SEC Form 13F as of September 30, 2025.