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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
Nov 2, 2021 (view filing)Oct 258 daysLateClark Daniel EmmettSecretary and General CounselSSaleClass A Common Stock−1.26K$7.54−$9.47K−31.9%2.68K after
Nov 2, 2021 (view filing)Oct 258 daysLateSchadt EricChief Executive OfficerSSaleClass A Common Stock−33.3K$7.54−$251.3K−42.3%45.5K after
Nov 2, 2021 (view filing)Oct 258 daysLateRo IsaacChief Financial OfficerSSaleClass A Common Stock−40.8K$7.54−$308.0K−32.7%84.2K after
Nov 2, 2021 (view filing)Oct 258 daysLateCoffin JamesPresident and COOSSaleClass A Common Stock−5.75K$7.54−$43.4K−25.5%16.8K after
Nov 2, 2021 (view filing)Oct 258 daysLateSaad KareemChief Business OfficerSSaleClass A Common Stock−16.6K$7.54−$125.2K−30.7%37.4K after
Nov 2, 2021 (view filing)Oct 258 daysLateWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.48K$7.54−$11.2K−32.9%3.02K after
Nov 2, 2021 (view filing)Oct 258 daysLatePrentice AnthonyChief Product OfficerSSaleClass A Common Stock−1.62K$8.09−$13.1K−41.1%2.32K after
Nov 10, 2021 (view filing)Nov 82 daysRo IsaacChief Financial OfficerSSaleClass A Common Stock−19.5K$8.49−$165.7K−13.3%127.1K after
Nov 15, 2021 (view filing)Nov 105 daysAssad ShawnChief Accounting OfficerSSaleClass A Common Stock−3.11K$7.87−$24.5K−14.9%17.8K after
Dec 1, 2021 (view filing)Nov 292 daysRo IsaacChief Financial OfficerSSaleClass A Common Stock−12.1K$6.63−$80.3K−9.5%115.0K after
Feb 2, 2022 (view filing)Jan 285 daysLateClark Daniel EmmettSecretary and General CounselSSaleClass A Common Stock−1.51K$2.84−$4.29K−0.5%306.8K after
Feb 2, 2022 (view filing)Jan 285 daysLateSchadt EricChief Executive OfficerSSaleClass A Common Stock−29.1K$2.84−$82.6K−22.5%100.5K after
Feb 2, 2022 (view filing)Jan 285 daysLateWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.78K$2.84−$5.04K−21.6%6.43K after
Feb 2, 2022 (view filing)Jan 285 daysLateSaad KareemChief Business OfficerSSaleClass A Common Stock−6.70K$2.84−$19.0K−11.3%52.5K after
Feb 2, 2022 (view filing)Jan 285 daysLatePrentice AnthonyChief Product OfficerSSaleClass A Common Stock−2.02K$2.84−$5.74K−21.0%7.61K after
Feb 10, 2022 (view filing)Feb 10Same dayRo IsaacChief Financial OfficerSSaleClass A Common Stock−21.7K$3.60−$78.2K−12.2%156.2K after
Feb 14, 2022 (view filing)Feb 113 daysAssad ShawnChief Accounting OfficerSSaleClass A Common Stock−3.65K$3.64−$13.3K−12.8%24.8K after
Apr 8, 2022 (view filing)Apr 62 daysRo IsaacChief Financial OfficerSSaleClass A Common Stock−1.28K$2.91−$3.74K−0.8%158.8K after
Apr 21, 2022 (view filing)Apr 201 daySaad KareemChief Business OfficerSSaleClass A Common Stock−6.27K$2.49−$15.6K−8.9%64.3K after
May 2, 2022 (view filing)Apr 284 daysClark Daniel EmmettSecretary and General CounselSSaleClass A Common Stock−1.21K$2.18−$2.64K−0.4%309.5K after
May 2, 2022 (view filing)Apr 284 daysSchadt EricPresident & Chief R&D OfficerSSaleClass A Common Stock−35.9K$2.18−$78.3K−20.0%143.4K after
May 2, 2022 (view filing)Apr 284 daysWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.43K$2.18−$3.12K−13.1%9.51K after
May 2, 2022 (view filing)Apr 284 daysPrentice AnthonyChief Product OfficerSSaleClass A Common Stock−1.69K$2.18−$3.69K−14.6%9.86K after
May 3, 2022 (view filing)Apr 294 daysCasdin EliDirectorPPurchaseClass A Common Stock+11.4M$4.00+$45.8M+228.8%16.4M after
May 3, 2022 (view filing)Apr 294 daysMeister Keith A.DirectorPPurchaseClass A Common Stock+11.4M$4.00+$45.8M+73.8%26.9M after
May 3, 2022 (view filing)8:26 PM ETApr 294 daysBlackstone Holdings III L.P. and 9 others10% OwnerPPurchaseClass A Common Stock+2.50M$4.00+$10.0MNew position162.3K after3 lots
May 3, 2022 (view filing)8:28 PM ETApr 294 daysSchwarzman Stephen A and 9 others10% OwnerPPurchaseClass A Common Stock+2.50M$4.00+$10.0MNew position162.3K after3 lotsDuplicate filing
May 5, 2022 (view filing)7:27 PM ETApr 296 daysLateMount Sinai Health System, Inc. and 1 other10% OwnerPPurchaseClass A Common Stock+6.25M$4.00+$25.0M+7.1%94.6M after
May 12, 2022 (view filing)May 102 daysRo IsaacChief Financial OfficerSSaleClass A Common Stock−19.5K$2.46−$48.0K−8.8%201.8K after
May 12, 2022 (view filing)May 111 dayAssad ShawnChief Accounting OfficerSSaleClass A Common Stock−3.13K$1.75−$5.47K−8.9%32.1K after
May 24, 2022 (view filing)May 204 daysSchadt EricPresident & Chief R&D OfficerPPurchaseClass A Common Stock+100.0K$1.92+$192.0K+69.7%243.4K after
Jul 21, 2022 (view filing)Jul 201 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−5.31K$1.60−$8.50K−6.5%77.0K after
Jul 27, 2022 (view filing)Jul 261 dayPrentice AnthonyChief Product OfficerSSaleClass A Common Stock−1.70K$1.47−$2.50K−12.3%12.1K after
Jul 27, 2022 (view filing)Jul 261 dayClark Daniel EmmettSecretary and General CounselSSaleClass A Common Stock−1.28K$1.47−$1.88K−0.4%312.2K after
Jul 27, 2022 (view filing)Jul 261 dayWhite Karen AnnChief People OfficerSSaleClass A Common Stock−2.07K$1.47−$3.04K−14.8%11.9K after
Aug 10, 2022 (view filing)Aug 91 dayRo IsaacOther: Former CFOSSaleClass A Common Stock−20.2K$1.99−$40.3K−7.7%244.0K after
Aug 26, 2022 (view filing)Aug 251 dayMiao RichardOther: Former Interim CFOSSaleClass A Common Stock−3.47K$1.20−$4.17K−12.3%24.9K after
Oct 4, 2022 (view filing)Oct 31 dayWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.43K$0.94−$1.34K−9.4%13.8K after
Oct 4, 2022 (view filing)Oct 31 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−2.67K$0.94−$2.51K−3.1%83.3K after
Oct 18, 2022 (view filing)Oct 171 dayRyan JasonExecutive ChairmanSSaleClass A Common Stock−1.28K$0.86−$1.10K−7.5%15.8K after
Oct 21, 2022 (view filing)Oct 201 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−5.41K$0.89−$4.82K−5.3%95.9K after
Oct 27, 2022 (view filing)Oct 261 dayWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.99K$1.02−$2.03K−10.9%16.3K after
Nov 28, 2022 (view filing)Nov 28Same dayStueland KatherineChief Executive OfficerPPurchaseClass A Common Stock+185.2K$0.54+$100.0KNew position185.2K after
Dec 5, 2022 (view filing)5:49 PM ETDec 14 daysMeister Keith A.DirectorSSaleClass A Common Stock−6.79M$0.399−$2.71M−25.2%20.1M after
Dec 5, 2022 (view filing)6:16 PM ETDec 23 daysFeeley KevinChief Financial OfficerSSaleClass A Common Stock−8.46K$0.397−$3.36K−35.8%15.2K after
Jan 4, 2023 (view filing)7:46 PM ETDec 31, 20224 daysRyan JasonExecutive ChairmanSSaleClass A Common Stock−73.7K$0.2619−$19.3K−28.0%189.6K after
Jan 5, 2023 (view filing)7:28 PM ETJan 41 daySaad KareemChief Transformation OfficerSSaleClass A Common Stock−3.17K$0.2625−$832.13−3.0%101.8K after
Jan 5, 2023 (view filing)7:29 PM ETJan 41 dayWhite Karen AnnChief People OfficerSSaleClass A Common Stock−1.63K$0.2625−$427.88−8.3%17.9K after
Jan 23, 2023 (view filing)5:50 PM ETJan 203 daysSaad KareemChief Transformation OfficerSSaleClass A Common Stock−6.29K$0.3841−$2.42K−5.3%113.5K after
Jan 27, 2023 (view filing)4:18 PM ETJan 261 dayWhite Karen AnnChief People OfficerSSaleClass A Common Stock−2.24K$0.3615−$810.12−10.0%20.2K after