GENEDX HOLDINGS CORP WGS
COM CL A · Common Stock · CUSIP 81663L200
- SectorHealth care
- IndustryServices-Health Services
- HeadquartersStamford, CT
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($36.8m this quarter). Holder counts are more reliable. Shares outstanding: 28.9m as of 2025-10-24, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $107.75. Options: 16 managers hold calls ($121.8m notional), 16 hold puts ($164.0m).
Trends to Q3 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2023 | 2 |
| Q2 2023 | 59 |
| Q3 2023 | 54 |
| Q4 2023 | 49 |
| Q1 2024 | 59 |
| Q2 2024 | 87 |
| Q3 2024 | 137 |
| Q4 2024 | 200 |
| Q1 2025 | 227 |
| Q2 2025 | 233 |
| Q3 2025 | 268 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2023 | 17 | 26 |
| Q1 2024 | 35 | 17 |
| Q2 2024 | 62 | 23 |
| Q3 2024 | 95 | 29 |
| Q4 2024 | 140 | 50 |
| Q1 2025 | 141 | 89 |
| Q2 2025 | 141 | 111 |
| Q3 2025 | 153 | 112 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q4 2024 | $18.7m | $9.6m | 0.51 |
| Q1 2025 | $62.7m | $25.3m | 0.40 |
| Q2 2025 | $210.5m | $251.6m | 1.20 |
| Q3 2025 | $121.8m | $164.0m | 1.35 |
Biggest buyers
| ARK Investment Management LLC | New | +447.0k |
| FRANKLIN RESOURCES INC | Added | +344.0k |
| FMR LLC | Added | +340.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +316.4k |
| Amova Asset Management Americas, Inc. | New | +292.3k |
| Sumitomo Mitsui Trust Group, Inc. | New | +292.3k |
| JENNISON ASSOCIATES LLC | Added | +200.5k |
| Telemark Asset Management, LLC | New | +120.0k |
| GOLDMAN SACHS GROUP INC | Added | +118.7k |
| Driehaus Capital Management LLC | Added | +106.6k |
Biggest sellers
| UBS Group AG | Reduced | -851.9k |
| Pentwater Capital Management LP | Reduced | -795.0k |
| Casdin Capital, LLC | Reduced | -500.0k |
| FRED ALGER MANAGEMENT, LLC | Reduced | -463.2k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Reduced | -411.3k |
| FARALLON CAPITAL MANAGEMENT, L.L.C. | Reduced | -321.7k |
| T. Rowe Price Investment Management, Inc. | Reduced | -319.1k |
| Schonfeld Strategic Advisors LLC | Reduced | -159.4k |
| Aberdeen Group plc | Sold out | -136.7k |
| Parkman Healthcare Partners LLC | Reduced | -129.8k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $38.7m359.5k shares |
| CITADEL ADVISORS LLC | Added | $14.5m134.3k shares |
| JANE STREET GROUP, LLC | Reduced | $14.4m133.4k shares |
| IMC-Chicago, LLC | Reduced | $10.3m95.9k shares |
| Walleye Trading LLC | Reduced | $10.1m93.8k shares |
| Caption Management, LLC | Reduced | $8.6m79.5k shares |
| WOLVERINE TRADING, LLC | Reduced | $7.5m66.1k shares |
| D. E. Shaw & Co., Inc. | Added | $3.6m33.2k shares |
| Cubist Systematic Strategies, LLC | Reduced | $2.7m24.6k shares |
| SIMPLEX TRADING, LLC | Reduced | $2.6m24.3k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $52.0m482.5k shares |
| Pentwater Capital Management LP | Reduced | $36.6m340.0k shares |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | $26.4m245.0k shares |
| JANE STREET GROUP, LLC | Reduced | $13.1m121.2k shares |
| CITADEL ADVISORS LLC | Reduced | $7.7m71.5k shares |
| IMC-Chicago, LLC | Reduced | $7.0m65.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $4.9m45.7k shares |
| Walleye Trading LLC | Reduced | $4.5m41.6k shares |
| WOLVERINE TRADING, LLC | Reduced | $4.2m37.1k shares |
| GROUP ONE TRADING LLC | Reduced | $2.4m22.0k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| CMLS Holdings LLC 13D · may seek influence no change · filed 2026-05-22 | 17.9% |
| GOLDMAN SACHS GROUP INC 13G · institution +1.9 pts · filed 2026-08-11 | 5.8% |
| BlackRock, Inc. 13G · institution new · filed 2026-07-28 | 5.5% |
| ARK Investment Management LLC 13G · institution filed 2026-08-07 | 5.3% |
Fell to 5% or below in the last year: WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC (4.3%, 2025-11-12)
Insider purchases and sales in Q3 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2023 | 2 | $176.3k | 5 | $1.2m | — |
| Q1 2024 | 1 | $357.5k | 3 | $190.8k | — |
| Q2 2024 | 1 | $8.2m | 2 | $468.2k | — |
| Q3 2024 | 0 | — | 2 | $734.6k | — |
| Q4 2024 | 0 | — | 3 | $9.8m | $3.2m |
| Q1 2025 | 0 | — | 2 | $17.0m | $6.3m |
| Q2 2025 | 1 | $8.6m | 2 | $7.1m | $5.5m |
| Q3 2025 | 0 | — | 4 | $71.6m | $3.9m |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2025-09-30 | Stueland Katherine CHIEF EXECUTIVE OFFICER, director | Sold plan | $1.4m12.9k shares |
| 2025-09-30 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold plan | $716.3k6.6k shares |
| 2025-09-16 | Stueland Katherine CHIEF EXECUTIVE OFFICER, director | Sold | $1.3m10.5k shares |
| 2025-09-09 | Stueland Katherine Chief Executive Officer, director | Sold | $468.3k3.7k shares |
| 2025-09-09 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold | $162.9k1.3k shares |
| 2025-09-02 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold | $47.6k378 shares |
| 2025-08-27 | Ryan Jason Director · By Jason Ryan 2024 GRAT | Sold | $4.8m38.1k shares |
| 2025-08-27 | Ryan Jason Director | Sold | $149.1k1.1k shares |
| 2025-08-22 | Casdin Partners GP, LLC +3 Director · See footnote | Sold | $60.5m500.0k shares |
| 2025-07-29 | Stueland Katherine Chief Executive Officer, director | Sold | $226.8k2.2k shares |
| 2025-07-29 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold | $40.9k388 shares |
| 2025-07-09 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold plan | $490.9k5.3k shares |
| 2025-07-09 | Stueland Katherine Chief Executive Officer, director | Sold plan | $299.5k3.2k shares |
| 2025-07-01 | Stueland Katherine Chief Executive Officer, director | Sold plan | $878.2k9.7k shares |
| 2025-07-01 | Feeley Kevin CHIEF FINANCIAL OFFICER | Sold plan | $122.5k1.3k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q3 2025
| Manager | Shares | Change |
|---|---|---|
| Corvex Management LP 11.80% of their portfolio | 3.1m $329.5m | Unchanged |
| Casdin Capital, LLC 27.01% of their portfolio | 3.0m $324.0m | Reduced -500.0k |
| BlackRock, Inc. 0.00% of their portfolio | 1.5m $164.7m | Added +94.4k |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC 0.34% of their portfolio | 1.2m $131.5m | Reduced -411.3k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.2m $126.1m | Reduced -10.5k |
| GOLDMAN SACHS GROUP INC 0.02% of their portfolio | 1.2m $125.9m | Added +118.7k |
| ORACLE INVESTMENT MANAGEMENT INC 66.91% of their portfolio | 890.0k $95.9m | Reduced -32.5k |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 2.89% of their portfolio | 823.6k $88.7m | Added +56.3k |
| T. Rowe Price Investment Management, Inc. 0.05% of their portfolio | 718.0k $77.4m | Reduced -319.1k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 681.4k $73.4m | Added +344.0k |
| Zweig-DiMenna Associates LLC 5.04% of their portfolio | 602.3k $64.9m | Added +16.2k |
| JENNISON ASSOCIATES LLC 0.04% of their portfolio | 598.4k $64.5m | Added +200.5k |
| WESTFIELD CAPITAL MANAGEMENT CO LP 0.25% of their portfolio | 544.1k $58.6m | Reduced -45.1k |
| LORD, ABBETT & CO. LLC 0.17% of their portfolio | 525.4k $56.6m | Added +90.9k |
| FMR LLC 0.00% of their portfolio | 503.3k $54.2m | Added +340.0k |
| Invesco Ltd. 0.01% of their portfolio | 494.1k $53.2m | Reduced -60.3k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 489.4k $52.7m | Added +4.7k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 475.5k $51.2m | Added +62.3k |
| MORGAN STANLEY 0.00% of their portfolio | 467.8k $50.4m | Reduced -19.3k |
| ARK Investment Management LLC 0.29% of their portfolio | 447.0k $48.2m | New |
| STATE STREET CORP 0.00% of their portfolio | 439.8k $47.4m | Added +23.8k |
| Pentwater Capital Management LP 0.41% of their portfolio | 425.0k $45.8m | Reduced -795.0k |
| Driehaus Capital Management LLC 0.32% of their portfolio | 410.0k $44.2m | Added +106.6k |
| WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio | 395.7k $42.6m | Reduced -10.8k |
| ALLIANCEBERNSTEIN L.P. 0.01% of their portfolio | 360.1k $38.8m | Reduced -26.7k |
| FRED ALGER MANAGEMENT, LLC 0.15% of their portfolio | 357.3k $38.5m | Reduced -463.2k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 331.4k $35.7m | Added +316.4k |
| Sumitomo Mitsui Trust Group, Inc. 0.02% of their portfolio | 292.3k $31.5m | New |
| Amova Asset Management Americas, Inc. 0.30% of their portfolio | 292.3k $31.4m | New |
| GAGNON SECURITIES LLC 5.82% of their portfolio | 269.1k $29.0m | Reduced -2.2k |
| MACQUARIE GROUP LTD 0.03% of their portfolio | 269.0k $29.0m | Reduced -48.8k |
| NEXT CENTURY GROWTH INVESTORS LLC 1.84% of their portfolio | 234.1k $25.2m | Added +12.5k |
| Science & Technology Partners, L.P. 6.85% of their portfolio | 224.1k $24.1m | Reduced -93.2k |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.01% of their portfolio | 209.3k $22.5m | Reduced -25.8k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 206.5k $22.2m | Reduced -8.5k |
| Alamea Verwaltungs GmbH 14.43% of their portfolio | 196.0k $21.1m | Reduced -28.0k |
| OBERWEIS ASSET MANAGEMENT INC/ 0.80% of their portfolio | 193.9k $20.9m | Added +31.0k |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 190.9k $20.6m | Reduced -81.3k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 183.1k $19.7m | Reduced -72.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 176.5k $19.0m | Added +8.9k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 164.5k $17.7m | Added +8.3k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 162.7k $17.5m | Added +96.4k |
| UBS Group AG 0.00% of their portfolio | 149.8k $16.1m | Reduced -851.9k |
| ASHFORD CAPITAL MANAGEMENT INC 1.59% of their portfolio | 132.5k $14.3m | Reduced -39.1k |
| TWO SIGMA INVESTMENTS, LP 0.02% of their portfolio | 130.4k $14.1m | Added +7.7k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 128.4k $13.8m | Added +3.6k |
| Gagnon Advisors, LLC 8.45% of their portfolio | 127.1k $13.7m | Unchanged |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.02% of their portfolio | 124.5k $13.4m | Added +99.6k |
| Telemark Asset Management, LLC 1.23% of their portfolio | 120.0k $12.9m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 117.7k $12.7m | Added +969 |
| ROYCE & ASSOCIATES LP 0.11% of their portfolio | 103.2k $11.1m | Added +9.6k |
| Capital International Investors 0.00% of their portfolio | 100.3k $10.8m | New |
| TANG CAPITAL MANAGEMENT LLC 0.41% of their portfolio | 100.0k $10.8m | Unchanged |
| Jump Financial, LLC 0.13% of their portfolio | 92.5k $10.0m | Added +82.6k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 92.3k $9.9m | New |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND 0.02% of their portfolio | 90.5k $9.8m | Reduced -15.9k |
| Palisades Investment Partners, LLC 3.58% of their portfolio | 84.7k $9.1m | Added +1.8k |
| Ensign Peak Advisors, Inc 0.01% of their portfolio | 79.0k $8.5m | Added +21.7k |
| Russell Investments Group, Ltd. 0.01% of their portfolio | 78.9k $8.5m | Reduced -2.0k |
| Squarepoint Ops LLC 0.02% of their portfolio | 77.8k $8.4m | Added +65.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 76.1k $8.2m | Added +51.3k |
| PEREGRINE CAPITAL MANAGEMENT LLC 0.24% of their portfolio | 74.2k $8.0m | Reduced -11.5k |
| Divisadero Street Capital Management, LP 0.37% of their portfolio | 73.1k $7.9m | Unchanged |
| CASTLEARK MANAGEMENT LLC 0.22% of their portfolio | 71.8k $7.7m | New |
| TUDOR INVESTMENT CORP ET AL 0.05% of their portfolio | 68.7k $7.4m | New |
| POLEN CAPITAL MANAGEMENT LLC 0.02% of their portfolio | 68.2k $7.3m | Reduced -12.8k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 64.1k $6.9m | Added +1.7k |
| SILVERCREST ASSET MANAGEMENT GROUP LLC 0.04% of their portfolio | 61.8k $6.7m | Reduced -31.6k |
| Legal Advantage Investments, Inc. 2.94% of their portfolio | 60.6k $6.5m | Added +50 |
| ARDSLEY ADVISORY PARTNERS LP 0.99% of their portfolio | 60.0k $6.5m | Reduced -20.0k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 59.6k $6.4m | Added +46.1k |
| AXA Investment Managers S.A. 0.02% of their portfolio | 58.2k $6.3m | First filing |
| RA CAPITAL MANAGEMENT, L.P. 0.08% of their portfolio | 58.0k $6.3m | Unchanged |
| Lisanti Capital Growth, LLC 1.49% of their portfolio | 56.6k $6.1m | Added +8 |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 55.6k $6.0m | Added +35.4k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 55.5k $6.0m | Added +72 |
| Nuveen, LLC 0.00% of their portfolio | 54.1k $5.8m | Added +11.6k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 51.7k $5.6m | New |
| Impax Asset Management Group plc 0.03% of their portfolio | 50.0k $5.4m | New |
| Calamos Advisors LLC 0.02% of their portfolio | 46.9k $5.1m | Added +2.4k |
| BARCLAYS PLC 0.00% of their portfolio | 46.0k $5.0m | Reduced -13.4k |
| Parkman Healthcare Partners LLC 0.54% of their portfolio | 45.2k $4.9m | Reduced -129.8k |
| Portolan Capital Management, LLC 0.26% of their portfolio | 44.0k $4.7m | Reduced -118.2k |
| Slow Capital, Inc. 0.49% of their portfolio | 39.0k $4.2m | Reduced -130 |
| RBF Capital, LLC 0.18% of their portfolio | 37.3k $4.0m | Unchanged |
| Universal- Beteiligungs- und Servicegesellschaft mbH 0.01% of their portfolio | 36.8k $4.0m | Added +17.9k |
| EFG Asset Management (North America) Corp. 0.51% of their portfolio | 36.5k $3.9m | Added +7.4k |
| Swiss National Bank 0.00% of their portfolio | 35.9k $3.9m | Reduced -1.6k |
| Trexquant Investment LP 0.04% of their portfolio | 34.5k $3.7m | New |
| TD Asset Management Inc 0.00% of their portfolio | 33.4k $3.6m | Reduced -1.8k |
| NIA IMPACT ADVISORS, LLC 1.12% of their portfolio | 31.9k $3.4m | Added +14.8k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 31.7k $3.4m | Reduced -16.5k |
| COMERICA BANK 0.01% of their portfolio | 30.5k $3.3m | Reduced -2.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 28.9k $3.1m | Added +14.7k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 28.7k $3.1m | Added +5.0k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 27.6k $3.0m | Reduced -32 |
| Morse Asset Management, Inc 0.59% of their portfolio | 27.4k $3.0m | Added +60 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 25.3k $2.7m | Reduced -2.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 24.4k $2.6m | Reduced -34.0k |
| Granahan Investment Management, LLC 0.10% of their portfolio | 23.7k $2.6m | Added +12.2k |