GeneDx Holdings Corp. (WGS)
Nasdaq: WGS · Services-Health Services · Stamford, CT · filing with the SEC since 2020
Who owns GeneDx Holdings Corp.
As filed with the SECHolders of 5% or more
4
Keith A. Meister holds 17.9% of Class A common stock, par value $0.0001 per share, as its SCHEDULE 13D/A filed May 22, 2026 says.
Directors and officers
15
report now, of 33 people on the record since 2020. Their holdings as a group are not read here.
Institutions as a whole
n/a
The record does not read the share held by managers that file Form 13F, so none is printed and no split of the rest is estimated. What it holds is the 4 named at left.
Holders of 5% or moreshare of the class, as filed
Keith A. Meister
SCHEDULE 13D/A · filed May 22, 2026 · Class A common stock, par value $0.0001 per share · 17.9% in May 15, 2026
Goldman Sachs Group Inc.
SCHEDULE 13G · filed Aug 11, 2026 · Class A common stock, par value $0.0001 per share · 3.9% in May 9, 2025
Blackrock, Inc.
SCHEDULE 13G · filed Jul 28, 2026 · Class A Stock
ARK Investment Management LLC
SCHEDULE 13G/A · filed Aug 7, 2026 · Common Stock
Icahn School Of Medicine At Mount Sinai
SCHEDULE 13D/A · filed Feb 21, 2025 · Class A Common Stock · reported falling below 5%, from 6.1% in Feb 18, 2025
William Blair Investment Management, LLC
SCHEDULE 13G/A · filed Nov 12, 2025 · Common Stock · reported falling below 5%, from 5.7% in Jul 30, 2025
Summit Partners Public Asset Management, LLC
SCHEDULE 13G/A · filed Aug 14, 2025 · Class A common stock, par value $0.0001 per share · reported falling below 5%, from 5.19% in Feb 12, 2025
Fmr LLC
SCHEDULE 13G/A · filed Aug 6, 2025 · CLASS A COMMON STOCK · reported falling below 5%, from 10% in May 12, 2025
What WGS reports owning in othersstakes of 5% or more, and other ties
Other ties the annual report names
Fabric Genomics, Inc.
A company bought · acquisition · Apr 2025 · owns, named in the 10-K filed Feb 23, 2026
Gene Dx
A company bought · acquisition · owns, named in the 10-K filed Feb 23, 2026
2 subsidiaries in 1 country, from the list filed with the 10-K filed Feb 23, 2026.
Insider tradesForm 4
108sales
34purchases
8sales on a scheduled plan
4people selling
$21.8Msold, in dollars
$107Mbought, in dollars
Open-market trades on Form 4 from Sep 30, 2025 to Sep 30, 2026. A scheduled plan is a selling program set in advance under SEC rule 10b5-1. The trades are listed as filed and do not feed the grade.
By calendar yearSoldBought
2026 runs to Sep 30, 2026. Dollars as filed, summed by the transaction date.
People who traded in the window7 of 53 on the roster
| Person | Role as filed | Sales | Sold | On a plan | Buys | Bought |
|---|---|---|---|---|---|---|
| Stueland Katherine | CHIEF EXECUTIVE OFFICER | 47 | $12.9M | 8 | 0 | $0 |
| Ruch Joshua | director | 15 | $6.1M | 0 | 0 | $0 |
| Feeley Kevin | CHIEF FINANCIAL OFFICER | 49 | $4.1M | 7 | 0 | $0 |
| Dechairo Bryan | Chief Operating Officer | 12 | $900,000 | 8 | 0 | $0 |
| Meister Keith A. | director | 0 | $0 | 0 | 29 | $74.0M |
| Casdin Partners Master Fund, L.P. | director | 0 | $0 | 0 | 3 | $21.5M |
| Casdin Eli | Chief Executive Officer | 0 | $0 | 0 | 2 | $11.1M |