Latest Period
Q1 2026
Security Snapshot
GeneDx Holdings Corp. - Common Stock (WGS) Institutional Ownership
CUSIP: 81663L200
13F Institutional Holders and Ownership History from Q1 2023 to Q1 2026
Institutions Reporting
238
Shares (Excl. Options)
31,232,277
Price
$64.22
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- Security type / class
- Equity / Common Stock
- Symbol
- WGS on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 31,232,277
- Total 13F value
- $2,005,171,623
- Portfolio coverage rank
- 0.01%
- Share change
- +1,355,506
- Value change
- -$27,660,991
- Number of holders
- 238
- Shares outstanding
- 28,736,767
- SEC-reported price per share
- $38.94
- Insider filing price
- $38.94
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- WGS - GeneDx Holdings Corp. - Common Stock is tracked under CUSIP 81663L200.
- 238 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 286 to 238 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $4,027,985,373 to $2,005,171,623.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 238 institutions filings for Q1 2026.
Security key
81663L200
Latest holder period
Q1 2026
13F holders
238
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
WGS full holder history
GeneDx Holdings Corp. SEC filings
GeneDx Holdings Corp. company facts
GeneDx Holdings Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 81663L200:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
WGS
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| CMLS Holdings LLC | 12% | -12% | $375,826,799 | -$48,159,994 | 3,630,826 | -11% | Keith A. Meister | 22 Aug 2025 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 4.3% | -23% | $133,132,271 | -$42,634,981 | 1,235,681 | -24% | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 30 Sep 2025 |
| GOLDMAN SACHS GROUP INC | 3.9% | -26% | $122,860,496 | -$34,984,913 | 1,106,752 | -22% | THE GOLDMAN SACHS GROUP, INC. | 31 Mar 2025 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 3% | -43% | $75,374,001 | -$48,643,788 | 867,265 | -39% | Summit Partners Public Asset Management, LLC | 30 Jun 2025 |
| FMR LLC | 0.6% | -94% | $14,194,477 | -$228,627,966 | 163,324 | -94% | FMR LLC | 30 Jun 2025 |
As of 31 Mar 2026, 238 institutional investors reported holding 31,232,277 shares of GeneDx Holdings Corp. - Common Stock (WGS). This represents 109% of the company’s total 28,736,767 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
77%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Corvex Management LP | 11% | 3,228,149 | +5.5% | 8.2% | $207,311,729 |
| Casdin Capital, LLC | 10% | 3,007,164 | 0% | 15% | $193,120,072 |
| BlackRock, Inc. | 5.4% | 1,550,708 | -0.6% | 0% | $99,586,463 |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 4.8% | 1,369,108 | +34% | 0.37% | $87,924,116 |
| GOLDMAN SACHS GROUP INC | 4.6% | 1,334,980 | +9.4% | 0.01% | $85,732,415 |
| ARK Investment Management LLC | 4.6% | 1,324,583 | +119% | 0.66% | $85,064,722 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3% | 858,583 | 0% | 0% | $55,138,200 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2.7% | 775,269 | -4.2% | 0.16% | $49,787,775 |
| Zweig-DiMenna Associates LLC | 2.4% | 689,290 | +15% | 6.2% | $44,266,204 |
| CITADEL ADVISORS LLC | 2.3% | 647,401 | +255% | 0.03% | $41,576,093 |
| Amova Asset Management Americas, Inc. | 2.2% | 638,800 | +67% | 0.58% | $41,023,736 |
| Sumitomo Mitsui Trust Group, Inc. | 2.2% | 633,457 | +66% | 0.03% | $40,680,609 |
| RAYMOND JAMES FINANCIAL INC | 2.1% | 610,073 | +21% | 0.01% | $38,768,639 |
| FRANKLIN RESOURCES INC | 2.1% | 607,221 | -44% | 0.01% | $38,995,712 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 549,147 | +8.8% | 0% | $35,272,985 |
| Invesco Ltd. | 1.9% | 540,229 | -31% | 0.01% | $34,693,507 |
| MORGAN STANLEY | 1.9% | 532,235 | +5.2% | 0% | $34,180,141 |
| Prosight Management, LP | 1.8% | 523,463 | +852% | 5.5% | $33,616,794 |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | 1.7% | 479,418 | -48% | 1.4% | $30,788,224 |
| STATE STREET CORP | 1.6% | 472,445 | +3.5% | 0% | $30,340,418 |
| EVENTIDE ASSET MANAGEMENT, LLC | 1.6% | 459,015 | 0.49% | $29,468,146 | |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.2% | 358,978 | +80% | 0.01% | $23,053,567 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.2% | 341,005 | -11% | 0% | $21,899,341 |
| Capital International Investors | 1.1% | 324,588 | +15% | 0% | $20,845,041 |
| Bank of New York Mellon Corp | 1.1% | 315,508 | +39% | 0% | $20,261,884 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
13
Latest
Q1 2026
Rows shown
1-13 of 13
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 31,232,277 | $2,005,171,623 | -$27,660,991 | $64.22 | 238 |
| 2025 Q4 | 30,995,113 | $4,027,985,373 | +$108,145,320 | $130.06 | 286 |
| 2025 Q3 | 30,101,297 | $3,243,312,025 | -$145,765,886 | $107.74 | 265 |
| 2025 Q2 | 31,497,581 | $2,907,518,951 | +$295,483,780 | $92.31 | 227 |
| 2025 Q1 | 28,348,693 | $2,510,002,958 | +$418,104,940 | $88.56 | 223 |
| 2024 Q4 | 23,530,792 | $1,808,818,954 | +$346,627,584 | $76.86 | 197 |
| 2024 Q3 | 18,827,893 | $799,061,927 | +$96,660,873 | $42.44 | 133 |
| 2024 Q2 | 16,284,875 | $425,689,987 | +$75,857,439 | $26.14 | 85 |
| 2024 Q1 | 13,907,881 | $126,979,303 | +$14,714,242 | $9.13 | 56 |
| 2023 Q4 | 12,439,878 | $34,209,188 | -$4,757,540 | $2.75 | 45 |
| 2023 Q3 | 13,944,728 | $50,758,465 | -$946,527 | $3.64 | 52 |
| 2023 Q2 | 13,953,489 | $83,162,048 | -$76,091,712 | $5.96 | 56 |
| 2023 Q1 | 26,718,966 | $9,627,559 | +$9,627,559 | $0.36 | 2 |