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 |
|---|---|---|---|---|---|---|---|---|---|
| Jul 31, 2025 (view filing) | Jul 29 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −2.15K | $105.31 | −$226.8K | −38.5%3.44K after | |
| Jul 11, 2025 (view filing) | Jul 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −5.28K | $93.00 | −$490.9K | −60.9%3.39K after | 10b5-1 |
| Jul 11, 2025 (view filing) | Jul 9 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −3.22K | $93.00 | −$299.5K | −65.2%1.72K after | 10b5-1 |
| Jul 3, 2025 (view filing) | Jul 1 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −9.66K | $90.94 | −$878.2K | −66.2%4.94K after | 3 lots10b5-1 |
| Jul 3, 2025 (view filing) | Jul 1 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.34K | $91.12 | −$122.5K | −15.3%7.42K after | 2 lots10b5-1 |
| Jun 18, 2025 (view filing) | Jun 16 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −10.5K | $64.77 | −$680.1K | −41.8%14.6K after | |
| Jun 18, 2025 (view filing) | Jun 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.73K | $64.77 | −$241.5K | −29.8%8.77K after | |
| Jun 11, 2025 (view filing) | Jun 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.27K | $72.55 | −$91.8K | −19.3%5.30K after | |
| Jun 11, 2025 (view filing) | Jun 9 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −3.64K | $72.55 | −$264.0K | −36.4%6.35K after | |
| Jun 3, 2025 (view filing) | Jun 2 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −370 | $71.26 | −$26.4K | −8.3%4.11K after | |
| May 16, 2025 (view filing)4:00 PM ET | May 14 | 2 days | Meister Keith A. and 1 otherDirector, 10% Owner | PPurchaseClass A Common Stock | +50.0K | $60.16 | +$3.01M | +1.7%3.06M after | 2 lots |
| May 12, 2025 (view filing)7:46 PM ET | May 8 | 4 days | Meister Keith A. and 1 otherDirector, 10% Owner | PPurchaseClass A Common Stock | +100.0K | $56.01 | +$5.60M | +3.4%3.01M after | 3 lots |
| May 9, 2025 (view filing) | Apr 9 | 30 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −14.3K | $92.06 | −$1.31M | −82.8%2.97K after | Amended9 lots10b5-1 |
| May 1, 2025 (view filing) | Apr 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −388 | $113.09 | −$43.9K | −10.4%3.34K after | |
| May 1, 2025 (view filing) | Apr 29 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −2.15K | $113.09 | −$243.6K | −38.5%3.44K after | |
| Apr 10, 2025 (view filing) | Apr 9 | 1 day | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −46.6K | $89.62 | −$4.18M | −96.4%1.72K after | 16 lots10b5-1 |
| Mar 28, 2025 (view filing) | Mar 26 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −8.75K | $95.61 | −$836.2K | −35.3%16.0K after | 2 lots |
| Mar 28, 2025 (view filing) | Mar 26 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −46.6K | $95.62 | −$4.45M | −49.1%48.3K after | 2 lots |
| Mar 17, 2025 (view filing) | Mar 13-17 | 4 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −11.6K | $96.04 | −$1.12M | −43.9%14.9K after | 2 lots |
| Mar 17, 2025 (view filing) | Mar 13-17 | 4 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −4.15K | $96.07 | −$398.8K | −32.8%8.49K after | 2 lots |
| Mar 11, 2025 (view filing) | Mar 10 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −922 | $94.72 | −$87.3K | −14.5%5.45K after | |
| Mar 11, 2025 (view filing) | Mar 10 | 1 day | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −2.73K | $94.73 | −$258.7K | −26.1%7.75K after | |
| Mar 4, 2025 (view filing) | Mar 3 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −261 | $103.94 | −$27.1K | −6.3%3.91K after | |
| Jan 31, 2025 (view filing) | Jan 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −275 | $78.48 | −$21.6K | −8.5%2.95K after | |
| Jan 31, 2025 (view filing) | Jan 29 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −1.66K | $78.48 | −$130.0K | −29.6%3.94K after | |
| Jan 10, 2025 (view filing) | Jan 7 | 3 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −35.5K | $93.82 | −$3.33M | −93.5%2.47K after | 4 lots |
| Jan 10, 2025 (view filing) | Jan 7 | 3 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −51.4K | $94.48 | −$4.86M | −96.8%1.72K after | 4 lots10b5-1 |
| Jan 6, 2025 (view filing) | Jan 2 | 4 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −18.0K | $78.18 | −$1.41M | −25.3%53.1K after | 6 lots10b5-1 |
| Jan 6, 2025 (view filing) | Jan 2 | 4 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.43K | $76.04 | −$108.7K | −5.1%26.8K after | 3 lots |
| Dec 18, 2024 (view filing) | Dec 16 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −10.5K | $76.75 | −$806.0K | −12.9%71.1K after | |
| Dec 18, 2024 (view filing) | Dec 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −3.73K | $76.75 | −$286.1K | −11.7%28.2K after | |
| Dec 11, 2024 (view filing) | Dec 9 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −3.66K | $76.37 | −$279.6K | −5.5%62.9K after | |
| Dec 11, 2024 (view filing) | Dec 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −1.14K | $76.37 | −$86.8K | −4.4%24.7K after | |
| Dec 3, 2024 (view filing) | Dec 2 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −263 | $78.39 | −$20.6K | −1.1%23.4K after | |
| Nov 25, 2024 (view filing) | Nov 21-22 | 4 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −22.0K | $74.81 | −$1.65M | −48.9%23.0K after | 9 lots |
| Nov 21, 2024 (view filing) | Nov 19-20 | 2 days | Ryan JasonDirector | SSaleClass A Common Stock | −47.0K | $70.57 | −$3.32M | −100.0%0 after | 6 lots |
| Nov 19, 2024 (view filing)8:00 PM ET | Nov 15-18 | 4 days | Mount Sinai Health System, Inc. and 1 other10% Owner | SSaleClass A Common Stock | −147.1K | $70.64 | −$10.4M | −5.1%2.72M after | 2 lots |
| Nov 19, 2024 (view filing) | Nov 15-18 | 4 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −45.4K | $70.41 | −$3.20M | −43.1%60.0K after | 13 lots10b5-1 |
| Nov 4, 2024 (view filing)5:01 PM ET | Oct 31 | 4 days | Mount Sinai Health System, Inc. and 1 other10% Owner | SSaleClass A Common Stock | −865.8K | $75.00 | −$64.9M | −23.2%2.87M after | |
| Oct 31, 2024 (view filing) | Oct 29 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −274 | $66.60 | −$18.2K | −0.6%45.0K after | |
| Oct 31, 2024 (view filing) | Oct 29 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −2.15K | $66.60 | −$143.5K | −2.0%105.4K after | |
| Sep 18, 2024 (view filing) | Sep 16 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −10.5K | $37.59 | −$394.7K | −9.2%103.7K after | |
| Sep 18, 2024 (view filing) | Sep 16 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −2.63K | $37.59 | −$99.0K | −5.6%44.5K after | |
| Sep 11, 2024 (view filing) | Sep 9 | 2 days | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −895 | $33.33 | −$29.8K | −2.2%39.9K after | |
| Sep 11, 2024 (view filing) | Sep 9 | 2 days | Stueland KatherineChief Executive Officer | SSaleClass A Common Stock | −3.64K | $33.33 | −$121.3K | −3.7%95.5K after | |
| Sep 4, 2024 (view filing) | Sep 3 | 1 day | Feeley KevinCHIEF FINANCIAL OFFICER | SSaleClass A Common Stock | −262 | $31.71 | −$8.31K | −0.7%38.3K after | |
| Aug 19, 2024 (view filing) | Aug 15-19 | 4 days | Opko Health, Inc.10% Owner | SSaleClass A Common Stock | −139.8K | $34.02 | −$4.76M | −5.0%2.65M after | 3 lots |
| Aug 14, 2024 (view filing) | Aug 12-13 | 2 days | Opko Health, Inc.10% Owner | SSaleClass A Common Stock | −84.8K | $34.19 | −$2.90M | −3.0%2.79M after | 2 lots |
| Aug 8, 2024 (view filing) | Aug 6-8 | 2 days | Opko Health, Inc.10% Owner | SSaleClass A Common Stock | −113.0K | $31.54 | −$3.56M | −3.8%2.87M after | 2 lots |
| Aug 2, 2024 (view filing) | Jul 31 | 2 days | Opko Health, Inc.10% Owner | SSaleClass A Common Stock | −88.8K | $33.50 | −$2.98M | −2.9%2.98M after |