GeneDx Holdings Corp.
WGS- Exchange
- Nasdaq
- Industry
- Services-Health Services
- SEC CIK
- 0001818331
In the last 90 days, GeneDx Holdings Corp. insiders filed 0 open-market purchases and 5 sales; 223 institutions reported holding it in 13F filings for Q2 2026, worth $2.17B in total; ARK Invest is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by GeneDx Holdings Corp. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 5 filings
- 2 insiders, $1.84M in total
- Insiders trading
- 2
- Net value
- −$1.84M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for GeneDx Holdings Corp., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Stueland Katherine | CHIEF EXECUTIVE OFFICER | 115,476 | Sep 18, 2026 | 15 |
| Feeley Kevin | CHIEF FINANCIAL OFFICER | 44,945 | Sep 18, 2026 | 19 |
| Fuchs Thomas | Director | 1,146 | Sep 18, 2026 | 2 |
| Gardner Mark A | President | – | Jul 1, 2026 | 1 |
| Ruch Joshua | Director | 33,299 | Jun 23, 2026 | 2 |
| Pfenniger Richard C Jr | Director | 45,082 | Jun 23, 2026 | 1 |
| Meister Keith A. | Director, 10% Owner | 23,705 | Jun 23, 2026 | 5 |
| Casdin Eli | Director, 10% Owner | 24,093 | Jun 23, 2026 | 4 |
| Ryan Jason | Director | 15,480 | Jun 23, 2026 | 1 |
| Leproust Emily M. | Director | 24,852 | Jun 23, 2026 | 1 |
| Casdin Partners GP, LLC | Director, 10% Owner | 3,707,164Indirect | Jun 8, 2026 | 3 |
| Casdin Capital, LLC | Director, 10% Owner | 3,707,164Indirect | Jun 8, 2026 | 3 |
| Casdin Partners Master Fund, L.P. | Director, 10% Owner | 3,707,164Indirect | Jun 8, 2026 | 3 |
| Corvex Management LP | Director, 10% Owner | 4,784,570Indirect | May 15, 2026 | 4 |
| Dechairo Bryan | Chief Operating Officer | 0 | Mar 5, 2026 | 3 |
| Mount Sinai Health System, Inc. | 10% Owner | 2,719,692 | Nov 19, 2024 | 0 |
| Icahn School Of Medicine At Mount Sinai | 10% Owner | 2,719,692 | Nov 19, 2024 | 0 |
| Opko Health, Inc. | 10% Owner | 2,646,972 | Aug 19, 2024 | 0 |
| Casdin Partners FO1-MSV, LP | Director | 3,093,509 | Jun 5, 2024 | 0 |
| Saad Kareem | CHIEF TRANSFORMATION OFFICER | 29,517 | Mar 19, 2024 | 0 |
| White Karen Ann | Chief People Officer | 4,761 | Jul 27, 2023 | 0 |
| Ro Isaac | Former CFO | 206,886 | May 31, 2023 | 0 |
| Assad Shawn | Other: Former CAO | 43,040 | May 31, 2023 | 0 |
| Prentice Anthony | Other: Former Chief Product Officer | 12,608 | May 22, 2023 | 0 |
| Sherman Rachel E. | Director | 58,290 | May 4, 2023 | 0 |
| Clark Daniel Emmett | Other: Former Secretary and GC | 312,345 | May 4, 2023 | 0 |
| Miao Richard | Other: Former Interim CFO | 23,291 | Apr 28, 2023 | 0 |
| Pellini Michael J | Director | 17,114 | Oct 18, 2022 | 0 |
| Schadt Eric | President & Chief R&D Officer | 243,380 | May 24, 2022 | 0 |
| Turner Nat | Director | 37,836 | May 12, 2022 | 0 |
| Schwarzman Stephen A | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Inc. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Group Management L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings I L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings I/II GP L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings II L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Alternative Solutions L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Bto De GP - NQ L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Tactical Opportunities Associates III - NQ L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Aqua Master Sub-Fund, a sub-fund of Blackstone Global Master Fund ICAV | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings III L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings III GP L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Holdings III GP Management L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Btoa L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Tactical Opportunities Associates L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| BTO Holdings Manager L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| BTO Side-by-Side GP L.L.C. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Family Tactical Opportunities Investment Partnership III ESC L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| Blackstone Tactical Opportunities Fund - FD L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
| BTO Sema4 Holdings L.P. | 10% Owner | 162,309Indirect | May 3, 2022 | 0 |
Showing the 50 most recent filers.
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Sep 18, 2026 (view filing)4:43 PM ET | Sep 16 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −10.5K | $97.61 | −$1.03M | −8.3%115.5K after | 5 lots |
| Sep 18, 2026 (view filing)4:39 PM ET | Sep 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.73K | $97.61 | −$363.9K | −7.7%44.9K after | 5 lots |
| Sep 11, 2026 (view filing)4:13 PM ET | Sep 9 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −3.69K | $84.22 | −$310.9K | −3.3%107.2K after | |
| Sep 11, 2026 (view filing)4:10 PM ET | Sep 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.28K | $84.22 | −$108.2K | −3.0%41.5K after | |
| Sep 3, 2026 (view filing)4:09 PM ET | Sep 1 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −372 | $83.84 | −$31.2K | −0.9%40.3K after | |
| Jun 18, 2026 (view filing) | Jun 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.73K | $60.76 | −$226.6K | −8.5%40.0K after | 3 lots |
| Jun 18, 2026 (view filing) | Jun 16 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −10.5K | $60.76 | −$638.1K | −9.1%104.4K after | 3 lots |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.27K | $53.77 | −$68.1K | −3.4%36.5K after | |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −3.64K | $53.77 | −$195.7K | −3.6%96.1K after | |
| Jun 8, 2026 (view filing)5:25 PM ET | Jun 4-5 | 4 days | Casdin Partners GP, LLC and 3 othersDirector, 10% Owner | PPurchaseClass A Common Stock, par value $0.0001 per share | +200.0K | $55.55 | +$11.1M | +5.7%3.71M after | 2 lots |
| Jun 3, 2026 (view filing) | Jun 1 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −369 | $51.74 | −$19.1K | −1.0%35.3K after | |
| May 20, 2026 (view filing)7:45 PM ET | May 18-20 | 2 days | Casdin Partners GP, LLC and 3 othersDirector, 10% Owner | PPurchaseClass A Common Stock, par value $0.0001 per share | +500.0K | $42.92 | +$21.5M | +16.6%3.51M after | 3 lots |
| May 15, 2026 (view filing)7:07 PM ET | May 13-15 | 2 days | Meister Keith A. and 1 otherDirector, 10% Owner | PPurchaseClass A Common Stock | +351.3K | $39.19 | +$13.8M | +7.9%4.78M after | 6 lots |
| May 11, 2026 (view filing)9:21 PM ET | May 7-11 | 4 days | Meister Keith A. and 1 otherDirector, 10% Owner | PPurchaseClass A Common Stock | +1.21M | $38.84 | +$46.8M | +37.3%4.43M after | 13 lots |
| May 11, 2026 (view filing)8:43 PM ET | May 7-11 | 4 days | Casdin Partners GP, LLC and 3 othersDirector, 10% Owner | PPurchaseClass A Common Stock | +850.0K | – | – | –850.0K after | Derivative3 lots |
| May 1, 2026 (view filing) | Apr 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −392 | $65.19 | −$25.6K | −1.1%34.9K after | |
| May 1, 2026 (view filing) | Apr 29 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −2.17K | $65.19 | −$141.6K | −2.3%93.2K after | 2 lots |
| Mar 30, 2026 (view filing) | Mar 26 | 4 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −8.82K | $63.17 | −$557.0K | −20.3%34.6K after | 5 lots |
| Mar 30, 2026 (view filing) | Mar 26 | 4 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −46.9K | $63.17 | −$2.96M | −33.9%91.5K after | 5 lots |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −5.71K | $76.80 | −$438.2K | −17.4%27.1K after | 3 lots |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −17.2K | $76.80 | −$1.32M | −22.7%58.4K after | 3 lots |
| Mar 11, 2026 (view filing) | Mar 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.28K | $86.75 | −$111.0K | −5.5%21.8K after | |
| Mar 11, 2026 (view filing) | Mar 9 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −3.68K | $86.75 | −$319.1K | −7.6%45.0K after | |
| Mar 5, 2026 (view filing)7:19 PM ET | Mar 3-5 | 2 days | Meister Keith A. and 1 otherDirector, 10% Owner | PPurchaseClass A Common Stock | +169.5K | $79.40 | +$13.5M | +5.5%3.23M after | 10 lots |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −6.19K | $78.61 | −$486.4K | −24.9%18.7K after | 3 lots |
| Mar 5, 2026 (view filing) | Mar 4 | 1 day | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −25.5K | $78.61 | −$2.00M | −39.7%38.7K after | 3 lots |
| Mar 3, 2026 (view filing) | Mar 2 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −287 | $77.52 | −$22.2K | −2.9%9.60K after | |
| Feb 6, 2026 (view filing) | Feb 4 | 2 days | Dechairo BryanChief Operating Officer | SSaleClass A Common Stock | −5.96K | $85.70 | −$510.9K | −100.0%0 after | 8 lots10b5-1 |
| Feb 3, 2026 (view filing) | Feb 2 | 1 day | Dechairo BryanChief Operating Officer | SSaleClass A Common Stock | −3.41K | $99.53 | −$339.7K | −36.4%5.96K after | 4 lots |
| Feb 2, 2026 (view filing) | Jan 29 | 4 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −317 | $93.99 | −$29.8K | −3.3%9.17K after | 2 lots |
| Feb 2, 2026 (view filing) | Jan 29 | 4 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −1.65K | $94.00 | −$155.4K | −9.1%16.5K after | |
| Dec 18, 2025 (view filing) | Dec 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.85K | $143.87 | −$554.6K | −30.6%8.73K after | 11 lots |
| Dec 18, 2025 (view filing) | Dec 16 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −10.9K | $143.89 | −$1.56M | −43.3%14.2K after | 11 lots |
| Dec 11, 2025 (view filing) | Dec 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.27K | $159.28 | −$201.6K | −19.0%5.39K after | |
| Dec 11, 2025 (view filing) | Dec 9 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −3.64K | $159.28 | −$579.6K | −36.5%6.34K after | |
| Dec 3, 2025 (view filing) | Dec 1 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −377 | $162.54 | −$61.3K | −8.2%4.19K after | |
| Nov 26, 2025 (view filing) | Nov 24 | 2 days | Ruch JoshuaDirector | SSaleClass A Common Stock | −38.0K | $160.37 | −$6.09M | −24.0%120.1K after | 15 lots |
| Oct 31, 2025 (view filing) | Oct 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −388 | $136.54 | −$53.0K | −9.4%3.76K after | |
| Oct 31, 2025 (view filing) | Oct 29 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −2.16K | $136.54 | −$294.7K | −38.6%3.44K after | 2 lots |
| Oct 1, 2025 (view filing) | Sep 30 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −6.61K | $108.38 | −$716.3K | −66.1%3.39K after | 7 lots10b5-1 |
| Oct 1, 2025 (view filing) | Sep 30 | 1 day | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −12.9K | $108.17 | −$1.39M | −88.2%1.72K after | 8 lots10b5-1 |
| Sep 18, 2025 (view filing) | Sep 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.73K | $121.47 | −$452.8K | −29.9%8.76K after | From original |
| Sep 18, 2025 (view filing) | Sep 16 | 2 days | Stueland KatherineCHIEF EXECUTIVE OFFICER | SSaleClass A Common Stock | −10.5K | $121.47 | −$1.28M | −41.9%14.6K after | |
| Sep 11, 2025 (view filing) | Sep 9 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −3.66K | $128.06 | −$468.3K | −36.6%6.33K after | 2 lots |
| Sep 11, 2025 (view filing) | Sep 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.27K | $128.05 | −$162.9K | −19.4%5.29K after | 2 lots |
| Sep 3, 2025 (view filing) | Sep 2 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −378 | $125.81 | −$47.6K | −8.4%4.10K after | |
| Aug 27, 2025 (view filing) | Aug 27 | Same day | Ryan JasonDirector | SSaleClass A Common Stock | −38.1K | $127.30 | −$4.85M | −26.9%103.3K after | 6 lots |
| Aug 27, 2025 (view filing) | Aug 27 | Same day | Ryan JasonDirector | SSaleClass A Common Stock | −1.15K | $129.65 | −$149.1K | −8.8%11.9K after | |
| Aug 22, 2025 (view filing)6:55 PM ET | Aug 22 | Same day | Casdin Partners GP, LLC and 3 othersDirector, 10% Owner | SSaleClass A Common Stock | −500.0K | $120.90 | −$60.5M | −14.3%3.01M after | |
| Jul 31, 2025 (view filing) | Jul 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −388 | $105.31 | −$40.9K | −9.4%3.76K after |