GeneDx Holdings Corp.
Ownership
Ownership Structure
Who owns GeneDx Holdings Corp. (WGS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 68.6% of the shares are freely tradable; institutional investors hold 114.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Casdin Capital, LLC | 12.43 | 3,707,164 | +23.3 | 06/30/2026 |
| Corvex Management LP | 10.82 | 3,228,149 | +5.5 | 03/31/2026 |
| BlackRock Inc | 5.20 | 1,550,708 | -0.6 | 03/31/2026 |
| William Blair Investment Management, LLC | 4.70 | 1,400,653 | +80.7 | 06/30/2026 |
| The Goldman Sachs Group Inc | 4.48 | 1,334,980 | +9.4 | 03/31/2026 |
| ARK Investment Management LLC | 4.44 | 1,324,583 | +119.1 | 03/31/2026 |
| Citadel Advisors Llc | 2.90 | 865,462 | +33.7 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.88 | 858,583 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| ARK Innovation ETF | 3.18 | 948,103 | -0.9 | 08/31/2026 |
| ARK Disruptive Innovation Full Composite | 3.04 | 907,967 | +10.4 | 06/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Stueland Katherine | CHIEF EXECUTIVE OFFICER | 115,476 | 11,674,624 $ | Sep 16, 2026 | direct |
| Feeley Kevin | CHIEF FINANCIAL OFFICER | 44,945 | 4,543,940 $ | Sep 16, 2026 | direct |
| Fuchs Thomas | Director | 1,146 | 115,861 $ | Sep 17, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 17, 2026 | Fuchs Thomas | Director | Other | 1,146 | 0.00 | – |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 1,079 | 99.00 | 106,816 |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 1,470 | 98.27 | 144,457 |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 541 | 96.90 | 52,423 |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 52 | 95.41 | 4,961 |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 586 | 94.26 | 55,235 |
| Sep 16, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Other | 7,197 | 0.00 | – |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 3,039 | 99.00 | 300,846 |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 4,141 | 98.27 | 406,936 |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 1,525 | 96.90 | 147,774 |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 148 | 95.41 | 14,120 |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 1,648 | 94.26 | 155,337 |
| Sep 16, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Other | 18,750 | 0.00 | – |
| Sep 9, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 1,285 | 84.22 | 108,220 |
| Sep 9, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Other | 2,462 | 0.00 | – |
| Sep 9, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Sell | 3,692 | 84.22 | 310,932 |
| Sep 9, 2026 | Stueland Katherine | CHIEF EXECUTIVE OFFICER | Other | 6,547 | 0.00 | – |
| Sep 1, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Sell | 372 | 83.84 | 31,188 |
| Sep 1, 2026 | Feeley Kevin | CHIEF FINANCIAL OFFICER | Other | 717 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 18, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.