GeneDx Holdings Corp.

Historical 13F Holders

Symbol: WGS
CUSIP: 81663L200
All holders as of: Q2 2026
Type: Equity
Class: COM CL A

Reported Value, Excluding Options

Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Every filing for 81663L200 since 12/18/2024, newest first.

Filer	% of Class	Shares	Form	Filed
Goldman Sachs Group Inc 13G	5.8%	1,733,592.38	13G	8/11/2026 Event 6/30/2026
The Goldman Sachs Group, Inc.	5.8%	1,733,592.38
Goldman Sachs & Co. LLC	5.8%	1,733,592.38
ARK Investment Management LLC 13G/A Amendment 1	5.3%	1,581,810	13G/A Amendment 1	8/7/2026 Event 7/31/2026
ARK Investment Management LLC	5.3%	1,581,810
Catherine D. Wood	5.3%	1,581,810
BlackRock, Inc. 13G	5.5%	1,622,518	13G	7/28/2026 Event 6/30/2026
CMLS Holdings LLC 13D/A Amendment 12	17.9%	5,356,767	13D/A Amendment 12	5/22/2026 Event 5/20/2026
CMLS Holdings LLC	1.8%	537,285
C-LSH LLC	1.8%	537,285
M-LSH LLC	1.8%	537,285
Casdin Capital, LLC	11.8%	3,507,164
Casdin Partners Master Fund, L.P.	11.8%	3,507,164
Casdin Partners GP, LLC	11.9%	3,526,411
Eli Casdin	13.7%	4,099,671
Keith A. Meister	17.9%	5,356,767
Corvex Management LP	16.1%	4,784,570
CMLS Holdings LLC 13D/A Amendment 11	17.9%	5,356,767	13D/A Amendment 11	5/15/2026 Event 5/14/2026
CMLS Holdings LLC	1.8%	537,285
C-LSH LLC	1.8%	537,285
M-LSH LLC	1.8%	537,285
Casdin Capital, LLC	10.1%	3,007,164
Casdin Partners Master Fund, L.P.	10.1%	3,007,164
Casdin Partners GP, LLC	10.2%	3,026,411
Eli Casdin	12.0%	3,599,671
Meister, Keith A.	17.9%	5,356,767
Corvex Management LP	16.1%	4,784,570
CMLS Holdings LLC 13D/A Amendment 10	16.7%	5,005,494	13D/A Amendment 10	5/11/2026 Event 5/7/2026
CMLS Holdings LLC	1.8%	537,285
C-LSH LLC	1.8%	537,285
M-LSH LLC	1.8%	537,285
Casdin Capital, LLC	10.1%	3,007,164
Casdin Partners Master Fund, L.P.	10.1%	3,007,164
Casdin Partners GP, LLC	10.2%	3,026,411
Eli Casdin	12.0%	3,599,671
Meister, Keith A.	16.7%	5,005,494
Corvex Management LP	14.9%	4,433,297
William Blair Investment Management, LLC 13G/A Amendment 1	4.3%	1,235,681	13G/A Amendment 1	11/12/2025 Event 9/30/2025
CMLS Holdings LLC 13D/A Amendment 9	12.5%	3,630,826	13D/A Amendment 9	8/26/2025 Event 8/22/2025
CMLS Holdings LLC	1.9%	537,285
C-LSH LLC	1.9%	537,285
M-LSH LLC	1.9%	537,285
Casdin Capital, LLC	10.5%	3,007,164
Casdin Partners Master Fund, L.P.	10.5%	3,007,164
Casdin Partners GP, LLC	10.5%	3,026,411
Eli Casdin	12.4%	3,599,671
Keith A. Meister	12.5%	3,630,826
Corvex Management LP	10.6%	3,058,629
Summit Partners Public Asset Management, LLC 13G/A Amendment 1	3.0%	867,265	13G/A Amendment 1	8/14/2025 Event 6/30/2025
Summit Partners Public Asset Management, LLC	3.0%	867,265
Summit Partners, L.P.	2.7%	771,333
Summit Partners Concentrated Growth L/S Master Fund, L.P.	0.4%	103,992
Summit Partners Technology L/S Master Fund, L.P.	0.2%	67,546
Summit Partners Sustainable Opportunities L/S Fund Limited	0.8%	235,761
Summit Partners Sustainable Opportunities L/S QP Fund, L.P.	1.2%	353,762
Summit Partners Sustainable Opportunities L/S Fund, L.P.	<0.1%	10,272
Summit Partners Alydar GP, L.P.	1.9%	535,572
Summit Partners Alydar GP, LLC	1.9%	535,572
Philip Furse	3.0%	867,265
Timothy Albright	3.0%	867,265
Robert MacAulay	3.0%	867,265
Matthew Curtis	3.0%	867,265
FMR LLC 13G/A Amendment 1	0.6%	163,323.86	13G/A Amendment 1	8/6/2025 Event 6/30/2025
FMR LLC	0.6%	163,323.86
Abigail P. Johnson	0.6%	163,323.86
William Blair Investment Management, LLC 13G	5.7%	1,631,402	13G	7/30/2025 Event 6/30/2025
FMR LLC 13G	10.0%	2,793,952.77	13G	5/12/2025 Event 3/31/2025
FMR LLC	10.0%	2,793,952.77
Abigail P. Johnson	10.0%	2,793,952.77
Goldman Sachs Group Inc 13G/A Amendment 1	3.9%	1,106,751.61	13G/A Amendment 1	5/9/2025 Event 3/31/2025
The Goldman Sachs Group, Inc.	3.9%	1,106,751.61
Goldman Sachs & Co. LLC	3.9%	1,106,751.61
CMLS Holdings LLC 13D/A Amendment 8	14.2%	4,096,095	13D/A Amendment 8	5/7/2025 Event 5/5/2025
CMLS Holdings LLC	1.9%	537,285
C-LSH LLC	1.9%	537,285
M-LSH LLC	1.9%	537,285
Casdin Capital, LLC	12.3%	3,507,164
Casdin Partners FO1-MSV, LP	0%	0
Casdin Partners Master Fund, L.P.	12.3%	3,507,164
Casdin Partners GP, LLC	12.4%	3,526,411
Casdin Eli	14.2%	4,096,095
Keith A. Meister	12.1%	3,477,250
Corvex Management LP	10.2%	2,908,629
Summit Partners Public Asset Management, LLC 13G	5.2%	1,426,968	13G	2/12/2025 Event 2/5/2025
Summit Partners Public Asset Management, LLC	5.2%	1,426,968
Summit Partners, L.P.	4.1%	1,135,901
Summit Partners Concentrated Growth L/S Master Fund, L.P.	1.3%	350,060
Summit Partners Technology L/S Master Fund, L.P.	0.7%	186,046
Summit Partners Sustainable Opportunities L/S Fund Limited	1.0%	269,101
Summit Partners Sustainable Opportunities L/S QP Fund, L.P.	1.2%	321,675
Summit Partners Sustainable Opportunities L/S Fund, L.P.	<0.1%	9,019
Summit Partners Alydar GP, L.P.	3.2%	866,800
Summit Partners Alydar GP, LLC	3.2%	866,800
Philip Furse	5.2%	1,426,968
Timothy Albright	5.2%	1,426,968
Robert MacAulay	5.2%	1,426,968
Matthew Curtis	5.2%	1,426,968
Goldman Sachs Group Inc 13G	5.2%	1,421,903	13G	2/5/2025 Event 12/31/2024
The Goldman Sachs Group, Inc.	5.2%	1,421,903
Goldman Sachs & Co. LLC	5.2%	1,421,903

13F Holders by Quarter

Period	Filings	Shares, Excl. Options	Value, Excl. Options	Options Value
2026 Q3	13	746 k	$53.9 M	$0
2026 Q2	242	33.4 M	$2.21 B	$77.9 M
2026 Q1	258	31.3 M	$2.01 B	$39.3 M
2025 Q4	316	31.2 M	$4.05 B	$184 M
2025 Q3	297	30.1 M	$3.25 B	$256 M
2025 Q2	263	31.5 M	$2.91 B	$403 M
2025 Q1	250	28.4 M	$2.52 B	$78.0 M
2024 Q4	214	23.5 M	$1.81 B	$25.8 M
2024 Q3	149	18.9 M	$802 M	$10.9 M
2024 Q2	96	16.5 M	$432 M	$4.84 M
2024 Q1	65	15.5 M	$141 M	$637 k
2023 Q4	55	14.9 M	$41.0 M	$643 k
2023 Q3	60	13.9 M	$50.8 M	$1.03 M
2023 Q2	66	14.0 M	$83.2 M	$2.19 M
2023 Q1	2	26.7 M	$9.63 M	$0