WGS GeneDx Holdings Corp.
GeneDx Holdings Corp. (WGS) Institutional Ownership
What the institutions did with WGS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Corvex Management LP | 4.8M | 13.6% |
| Casdin Capital, LLC | 3.7M | 10.5% |
| LMR Partners LLP | 2.1M | 6.1% |
| BlackRock, Inc. | 1.7M | 4.8% |
| GOLDMAN SACHS GROUP INC | 1.7M | 4.7% |
| ARK Investment Management LLC | 1.6M | 4.6% |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 1.4M | 4.0% |
| MORGAN STANLEY | 988.3K | 2.8% |
| VANGUARD CAPITAL MANAGEMENT LLC | 879.0K | 2.5% |
| CITADEL ADVISORS LLC | 865.5K | 2.5% |
| First Light Asset Management, LLC | 783.9K | 2.2% |
| Deep Track Capital, LP | 700.0K | 2.0% |
| Sumitomo Mitsui Trust Group, Inc. | 666.6K | 1.9% |
| Amova Asset Management Americas, Inc. | 666.6K | 1.9% |
| Assenagon Asset Management S.A. | 606.9K | 1.7% |
| Zweig-DiMenna Associates LLC | 572.0K | 1.6% |
| GEODE CAPITAL MANAGEMENT, LLC | 552.1K | 1.6% |
| STATE STREET CORP | 527.8K | 1.5% |
| GAGNON SECURITIES LLC | 524.9K | 1.5% |
| D. E. Shaw & Co., Inc. | 506.1K | 1.4% |
| Aberdeen Group plc | 457.2K | 1.3% |
| WELLINGTON MANAGEMENT GROUP LLP | 347.9K | 1.0% |
| BANK OF AMERICA CORP /DE/ | 346.2K | 1.0% |
| FRANKLIN RESOURCES INC | 280.9K | 0.8% |
| DIMENSIONAL FUND ADVISORS LP | 280.6K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| LMR Partners LLP | Increased | 279 | 2.1M | +2.1M |
| Corvex Management LP | Increased | 3.2M | 4.8M | +1.6M |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Sold Out | 1.4M | 0 | -1.4M |
| Casdin Capital, LLC | Increased | 3.0M | 3.7M | +700.0K |
| Deep Track Capital, LP | New | 0 | 700.0K | +700.0K |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Increased | 775.3K | 1.4M | +625.4K |
| First Light Asset Management, LLC | Increased | 242.9K | 783.9K | +541.0K |
| Invesco Ltd. | Reduced | 540.2K | 20.0K | -520.2K |
| Assenagon Asset Management S.A. | Increased | 95.1K | 606.9K | +511.7K |
| D. E. Shaw & Co., Inc. | Increased | 18.9K | 506.1K | +487.2K |
| RAYMOND JAMES FINANCIAL INC | Reduced | 610.1K | 123.4K | -486.7K |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | Sold Out | 479.4K | 0 | -479.4K |
| MORGAN STANLEY | Increased | 532.2K | 988.3K | +456.1K |
| Prosight Management, LP | Reduced | 523.5K | 85.5K | -438.0K |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | Reduced | 359.0K | 9.1K | -349.9K |
| GOLDMAN SACHS GROUP INC | Increased | 1.3M | 1.7M | +334.5K |
| FRANKLIN RESOURCES INC | Reduced | 607.2K | 280.9K | -326.3K |
| Capital International Investors | Sold Out | 324.6K | 0 | -324.6K |
| FMR LLC | Reduced | 295.6K | 7.1K | -288.5K |
| ARK Investment Management LLC | Increased | 1.3M | 1.6M | +285.6K |
| OBERWEIS ASSET MANAGEMENT INC/ | Sold Out | 261.4K | 0 | -261.4K |
| Bank of New York Mellon Corp | Reduced | 315.5K | 62.0K | -253.5K |
| Vestal Point Capital, LP | Sold Out | 250.0K | 0 | -250.0K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 23.0K | 272.7K | +249.6K |
| Aberdeen Group plc | Increased | 230.1K | 457.2K | +227.1K |
| GAGNON SECURITIES LLC | Increased | 303.1K | 524.9K | +221.7K |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | Sold Out | 221.2K | 0 | -221.2K |
| CITADEL ADVISORS LLC | Increased | 647.4K | 865.5K | +218.1K |
| RA CAPITAL MANAGEMENT, L.P. | Sold Out | 209.9K | 0 | -209.9K |
| JANE STREET GROUP, LLC | New | 0 | 204.6K | +204.6K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 249.4K | 54.3K | -195.1K |
| TORONTO DOMINION BANK | New | 0 | 193.2K | +193.2K |
| EVENTIDE ASSET MANAGEMENT, LLC | Reduced | 459.0K | 269.5K | -189.5K |
| Qube Research & Technologies Ltd | Sold Out | 184.5K | 0 | -184.5K |
| UBS Group AG | Increased | 50.8K | 208.7K | +157.8K |
| BlackRock, Inc. | Increased | 1.6M | 1.7M | +155.5K |
| RENAISSANCE TECHNOLOGIES LLC | Sold Out | 153.7K | 0 | -153.7K |
| Capital Research Global Investors | Sold Out | 151.1K | 0 | -151.1K |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | New | 0 | 141.5K | +141.5K |
| Science & Technology Partners, L.P. | Reduced | 241.2K | 106.4K | -134.8K |
| Engineers Gate Manager LP | Sold Out | 133.0K | 0 | -133.0K |
| SILVERARC CAPITAL MANAGEMENT, LLC | New | 0 | 122.3K | +122.3K |
| Zweig-DiMenna Associates LLC | Reduced | 689.3K | 572.0K | -117.3K |
| BNP PARIBAS FINANCIAL MARKETS | Increased | 7.7K | 123.7K | +116.0K |
| Q Global Advisors, LLC | New | 0 | 111.7K | +111.7K |
| BANK OF AMERICA CORP /DE/ | Increased | 234.6K | 346.2K | +111.6K |
| Portolan Capital Management, LLC | Increased | 102.6K | 200.3K | +97.7K |
| StoneX Group Inc. | New | 0 | 97.2K | +97.2K |
| Granahan Investment Management, LLC | Sold Out | 96.6K | 0 | -96.6K |
| FRED ALGER MANAGEMENT, LLC | Reduced | 202.8K | 108.5K | -94.2K |
| HRT FINANCIAL LP | New | 0 | 92.4K | +92.4K |
| Palisades Investment Partners, LLC | Sold Out | 92.0K | 0 | -92.0K |
| BARCLAYS PLC | Increased | 7.9K | 97.2K | +89.4K |
| T. Rowe Price Investment Management, Inc. | Sold Out | 86.1K | 0 | -86.1K |
| Pentwater Capital Management LP | New | 0 | 82.5K | +82.5K |
| POLEN CAPITAL MANAGEMENT LLC | Sold Out | 77.4K | 0 | -77.4K |
| Trexquant Investment LP | Sold Out | 77.4K | 0 | -77.4K |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | Sold Out | 76.4K | 0 | -76.4K |
| TUDOR INVESTMENT CORP ET AL | Increased | 33.5K | 108.8K | +75.3K |
| FIRST TRUST ADVISORS LP | Sold Out | 74.6K | 0 | -74.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.