Skip to main content

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.

Insider roster for GeneDx Holdings Corp.
NameTitleLast reported holdingLast filingFilings, past year
Stueland KatherineCHIEF EXECUTIVE OFFICER115,476Sep 18, 202615
Feeley KevinCHIEF FINANCIAL OFFICER44,945Sep 18, 202619
Fuchs ThomasDirector1,146Sep 18, 20262
Gardner Mark APresident–Jul 1, 20261
Ruch JoshuaDirector33,299Jun 23, 20262
Pfenniger Richard C JrDirector45,082Jun 23, 20261
Meister Keith A.Director, 10% Owner23,705Jun 23, 20265
Casdin EliDirector, 10% Owner24,093Jun 23, 20264
Ryan JasonDirector15,480Jun 23, 20261
Leproust Emily M.Director24,852Jun 23, 20261
Casdin Partners GP, LLCDirector, 10% Owner3,707,164IndirectJun 8, 20263
Casdin Capital, LLCDirector, 10% Owner3,707,164IndirectJun 8, 20263
Casdin Partners Master Fund, L.P.Director, 10% Owner3,707,164IndirectJun 8, 20263
Corvex Management LPDirector, 10% Owner4,784,570IndirectMay 15, 20264
Dechairo BryanChief Operating Officer0Mar 5, 20263
Mount Sinai Health System, Inc.10% Owner2,719,692Nov 19, 20240
Icahn School Of Medicine At Mount Sinai10% Owner2,719,692Nov 19, 20240
Opko Health, Inc.10% Owner2,646,972Aug 19, 20240
Casdin Partners FO1-MSV, LPDirector3,093,509Jun 5, 20240
Saad KareemCHIEF TRANSFORMATION OFFICER29,517Mar 19, 20240
White Karen AnnChief People Officer4,761Jul 27, 20230
Ro IsaacFormer CFO206,886May 31, 20230
Assad ShawnOther: Former CAO43,040May 31, 20230
Prentice AnthonyOther: Former Chief Product Officer12,608May 22, 20230
Sherman Rachel E.Director58,290May 4, 20230
Clark Daniel EmmettOther: Former Secretary and GC312,345May 4, 20230
Miao RichardOther: Former Interim CFO23,291Apr 28, 20230
Pellini Michael JDirector17,114Oct 18, 20220
Schadt EricPresident & Chief R&D Officer243,380May 24, 20220
Turner NatDirector37,836May 12, 20220
Schwarzman Stephen A10% Owner162,309IndirectMay 3, 20220
Blackstone Inc.10% Owner162,309IndirectMay 3, 20220
Blackstone Group Management L.L.C.10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings I L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings I/II GP L.L.C.10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings II L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Alternative Solutions L.L.C.10% Owner162,309IndirectMay 3, 20220
Bto De GP - NQ L.L.C.10% Owner162,309IndirectMay 3, 20220
Blackstone Tactical Opportunities Associates III - NQ L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Aqua Master Sub-Fund, a sub-fund of Blackstone Global Master Fund ICAV10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings III L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings III GP L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Holdings III GP Management L.L.C.10% Owner162,309IndirectMay 3, 20220
Btoa L.L.C.10% Owner162,309IndirectMay 3, 20220
Blackstone Tactical Opportunities Associates L.L.C.10% Owner162,309IndirectMay 3, 20220
BTO Holdings Manager L.L.C.10% Owner162,309IndirectMay 3, 20220
BTO Side-by-Side GP L.L.C.10% Owner162,309IndirectMay 3, 20220
Blackstone Family Tactical Opportunities Investment Partnership III ESC L.P.10% Owner162,309IndirectMay 3, 20220
Blackstone Tactical Opportunities Fund - FD L.P.10% Owner162,309IndirectMay 3, 20220
BTO Sema4 Holdings L.P.10% Owner162,309IndirectMay 3, 20220

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.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 31, 2024 (view filing)Jul 292 daysStueland KatherineChief Executive OfficerSSaleClass A Common Stock−2.15K$33.54−$72.2K−2.3%92.5K after
Jul 31, 2024 (view filing)Jul 292 daysFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−274$33.54−$9.19K−0.7%37.9K after
Jul 31, 2024 (view filing)Jul 292 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−50.0K$33.86−$1.69M−1.6%3.07M after
Jul 26, 2024 (view filing)Jul 24-262 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−135.0K$33.78−$4.56M−4.1%3.12M after2 lots
Jul 23, 2024 (view filing)Jul 19-234 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−150.0K$32.98−$4.95M−4.4%3.26M after3 lots
Jul 19, 2024 (view filing)Jul 172 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−25.0K$32.93−$823.3K−0.7%3.41M after
Jul 9, 2024 (view filing)Jul 54 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−36.1K$28.24−$1.02M−1.0%3.43M after
Jul 3, 2024 (view filing)Jul 1-32 daysOpko Health, Inc.10% OwnerSSaleClass A Common Stock−89.1K$27.58−$2.46M−2.5%3.47M after3 lots10b5-1
Jun 18, 2024 (view filing)Jun 171 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−2.65K$28.31−$74.9K−6.6%37.4K after
Jun 18, 2024 (view filing)Jun 171 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−7.68K$28.31−$217.5K−7.8%90.8K after
Jun 11, 2024 (view filing)Jun 101 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−895$24.92−$22.3K−2.7%32.9K after
Jun 11, 2024 (view filing)Jun 101 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−2.65K$24.92−$66.1K−3.2%79.8K after
Jun 5, 2024 (view filing)8:45 PM ETJun 3-42 daysCasdin Partners GP, LLC and 4 othersDirector, 10% OwnerPPurchaseClass A Common Stock+130.0K$21.21+$2.76M+4.4%3.09M after2 lots
Jun 4, 2024 (view filing)Jun 31 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−262$20.55−$5.38K−0.8%31.3K after
May 31, 2024 (view filing)5:37 PM ETMay 292 daysCasdin Partners GP, LLC and 4 othersDirector, 10% OwnerPPurchaseClass A Common Stock+40.0K$21.07+$842.6K+1.4%2.96M after
May 28, 2024 (view filing)8:40 PM ETMay 23-285 daysCasdin Partners GP, LLC and 4 othersDirector, 10% OwnerPPurchaseClass A Common Stock+170.0K$20.15+$3.42M+6.2%2.92M after3 lots
May 15, 2024 (view filing)6:16 PM ETMay 132 daysCasdin Partners GP, LLC and 4 othersDirector, 10% OwnerPPurchaseClass A Common Stock+50.0K$23.31+$1.17M+1.8%2.75M after
Apr 30, 2024 (view filing)Apr 291 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−6.33K$11.04−$69.8K−7.7%75.9K after
Apr 30, 2024 (view filing)Apr 291 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−1.10K$11.04−$12.2K−3.5%30.8K after
Mar 19, 2024 (view filing)Mar 181 dayStueland KatherineCHIEF EXECUTIVE OFFICERSSaleClass A Common Stock−8.56K$10.59−$90.6K−11.4%66.7K after
Mar 19, 2024 (view filing)Mar 181 daySaad KareemCHIEF TRANSFORMATION OFFICERSSaleClass A Common Stock−2.01K$10.59−$21.3K−6.4%29.5K after
Mar 19, 2024 (view filing)Mar 181 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−3.25K$10.59−$34.4K−10.1%28.9K after
Mar 13, 2024 (view filing)Mar 121 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−931$9.21−$8.57K−3.6%25.0K after
Mar 13, 2024 (view filing)Mar 121 dayStueland KatherineCHIEF EXECUTIVE OFFICERSSaleClass A Common Stock−2.62K$9.21−$24.1K−4.4%56.5K after
Mar 13, 2024 (view filing)Mar 121 daySaad KareemCHIEF TRANSFORMATION OFFICERSSaleClass A Common Stock−897$9.21−$8.26K−3.3%26.4K after
Mar 6, 2024 (view filing)7:32 PM ETMar 4-52 daysCasdin Partners GP, LLC and 4 othersDirector, 10% OwnerPPurchaseClass A Common Stock+40.9K$8.74+$357.7K+1.5%2.70M after2 lots
Mar 5, 2024 (view filing)Mar 41 dayFeeley KevinCHIEF FINANCIAL OFFICERSSaleClass A Common Stock−301$8.57−$2.58K−1.3%23.5K after
Jan 23, 2024 (view filing)Jan 221 daySaad KareemCHIEF TRANSFORMATION OFFICERSSaleClass A Common Stock−193$3.24−$625.32−0.8%24.5K after
Jan 4, 2024 (view filing)Jan 31 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−105$2.58−$270.9−0.4%24.1K after
Dec 19, 2023 (view filing)Dec 181 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−11.7K$2.16−$25.3K−18.2%52.6K after
Dec 19, 2023 (view filing)Dec 181 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−1.70K$2.16−$3.67K−6.6%23.9K after
Dec 19, 2023 (view filing)Dec 181 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−2.95K$2.16−$6.37K−11.3%23.0K after
Dec 12, 2023 (view filing)Dec 111 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−3.67K$1.61−$5.91K−7.5%45.6K after
Dec 12, 2023 (view filing)Dec 111 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−850$1.61−$1.37K−4.0%20.5K after
Dec 12, 2023 (view filing)Dec 111 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−908$1.61−$1.46K−4.6%18.8K after
Dec 5, 2023 (view filing)Dec 41 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−270$1.77−$477.9−1.5%17.2K after
Nov 20, 2023 (view filing)Nov 16-174 daysRyan JasonExecutive ChairmanPPurchaseClass A Common Stock+114.7K$1.41+$161.4KNew position114.7K after2 lots
Nov 17, 2023 (view filing)4:18 PM ETNov 152 daysMeister Keith A. and 1 otherDirector, 10% OwnerSSaleClass A Common Stock−883.7K$1.29−$1.14M−22.7%3.01M afterFrom original
Nov 8, 2023 (view filing)Nov 8Same dayPfenniger Richard C JrDirectorPPurchaseClass A Common Stock+10.0K$1.49+$14.9K+91.6%20.9K after
Oct 23, 2023 (view filing)Oct 203 daysSaad KareemChief Transformation OfficerSSaleClass A Common Stock−164$3.44−$564.16−0.9%18.5K after
Oct 18, 2023 (view filing)Oct 171 dayRyan JasonExecutive ChairmanSSaleClass A Common Stock−42$3.19−$133.98−0.7%5.83K after
Oct 3, 2023 (view filing)Oct 3Same daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−85$3.56−$302.6−0.5%18.2K after
Sep 19, 2023 (view filing)Sep 181 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−10.8K$4.16−$44.7K−20.1%42.7K after
Sep 19, 2023 (view filing)Sep 181 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−1.58K$4.16−$6.57K−8.1%18.0K after
Sep 19, 2023 (view filing)Sep 181 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−2.74K$4.16−$11.4K−14.0%16.8K after
Sep 12, 2023 (view filing)Sep 111 dayStueland KatherineChief Executive OfficerSSaleClass A Common Stock−2.67K$4.62−$12.4K−7.2%34.7K after
Sep 12, 2023 (view filing)Sep 111 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−846$4.62−$3.91K−5.5%14.4K after
Sep 12, 2023 (view filing)Sep 111 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−904$4.62−$4.18K−6.8%12.3K after
Sep 6, 2023 (view filing)Sep 51 dayFeeley KevinChief Financial OfficerSSaleClass A Common Stock−269$4.38−$1.18K−2.4%10.8K after
Aug 18, 2023 (view filing)Aug 171 dayPfenniger Richard C JrDirectorPPurchaseClass A Common Stock+5.00K$5.10+$25.5K+84.5%10.9K after