GeneDx Holdings Corp. 13F holders
223 funds reported a position in GeneDx Holdings Corp. in their 13F for the quarter ended 30 June 2026, together 31.9 million shares worth $2.19 billion. Against the quarter before, 50 opened a position, 84 added, 57 trimmed and 71 sold out; together they sold a net 159,755 shares. The largest holders: Corvex Management LP, Casdin Capital, LLC and BlackRock, Inc.
Funds holding223-18 on Q1 2026
Shares they held31.9Mworth $2.19 billion
Net sold on the quarter159,755 sharesabout $11.0 million at the funds' values
Funds buying to selling134 to 128opened or added, to cut or sold
Opened 50Added 84Held 30Trimmed 57Sold out 71
What each fund did in WGS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in WGS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
2,671 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 26 reported a position in GeneDx Holdings Corp.: 4 opened one, 9 added, 7 trimmed and 6 sold out, a net 4,828 shares bought.
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 8 reported a position in GeneDx Holdings Corp. in a 13F for the quarter ended 30 June 2026. The largest: ARK Investment Management, 1.6 million shares worth $110.5 million, 0.7% of its reported book. Sold out: Renaissance Technologies, Capital Research Global Investors. In the quarter, 6 funds added or opened a position and 3 trimmed or sold out; together they sold a net 59,204 shares, about $4.1 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| ARK Investment Management | 1,610,189 | $110.5 million | 0.7% | +285,606 | added | 30 June 2026 | 13F |
| Citadel Advisors | 865,462 | $59.4 million | 0.0% | +218,061 | added | 30 June 2026 | 13F |
| Geode Capital Management | 552,125 | $37.9 million | 0.0% | +2,978 | added | 30 June 2026 | 13F |
| Norges Bank | 273,100 | $18.7 million | 0.0% | held | 30 June 2026 | 13F | |
| Millennium Management | 155,575 | $10.7 million | 0.0% | +5,669 | added | 30 June 2026 | 13F |
| Point72 Asset Management | 97,300 | $6.7 million | 0.0% | +21,505 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 10,684 | $733,457 | 0.0% | +237 | added | 30 June 2026 | 13F |
| FMR LLC | 7,132 | $489,625 | 0.0% | -288,489 | trimmed | 30 June 2026 | 13F |
| Renaissance Technologies | 0 | $0 | 0.0% | -153,716 | exited | 30 June 2026 | 13F |
| Capital Research Global Investors | 0 | $0 | 0.0% | -151,055 | exited | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| Corvex Management LP | 4,784,570 | 15.01% | $328.5 million | 10.21% | +1,556,421 | 13F |
| Casdin Capital, LLC | 3,707,164 | 11.63% | $254.5 million | 12.74% | +700,000 | 13F |
| BlackRock, Inc. | 1,706,239 | 5.35% | $117.1 million | 0.00% | +155,531 | 13F |
| Goldman Sachs Group Inc. | 1,669,441 | 5.24% | $114.6 million | 0.01% | +334,461 | 13F |
| ARK Investment Management LLC | 1,610,189 | 5.05% | $110.5 million | 0.72% | +285,606 | 13F |
| William Blair Investment Management, LLC | 1,400,653 | 4.39% | $96.2 million | 0.29% | +625,384 | 13F |
| Morgan Stanley | 988,297 | 3.10% | $67.8 million | 0.00% | +456,062 | 13F |
| Vanguard Capital Management LLC | 879,003 | 2.76% | $60.3 million | 0.00% | +20,420 | 13F |
| Citadel Advisors LLC | 865,462 | 2.71% | $59.4 million | 0.04% | +218,061 | 13F |
| First Light Asset Management, LLC | 783,923 | 2.46% | $53.8 million | 3.27% | +540,996 | 13F |
| Deep Track Capital, LP | 700,000 | 2.20% | $48.1 million | 0.71% | new | 13F |
| Sumitomo Mitsui Trust Group, Inc. | 666,581 | 2.09% | $45.8 million | 0.03% | +33,124 | 13F |
| Amova Asset Management Americas, Inc. | 666,581 | 2.09% | $45.7 million | 0.59% | +27,781 | 13F |
| Assenagon Asset Management S.A. | 606,866 | 1.90% | $41.7 million | 0.03% | 13F | |
| Zweig-DiMenna Associates LLC | 571,950 | 1.79% | $39.3 million | 3.56% | -117,340 | 13F |
| Geode Capital Management, LLC | 552,125 | 1.73% | $37.9 million | 0.00% | +2,978 | 13F |
| State Street Corp. | 527,815 | 1.66% | $36.2 million | 0.00% | +55,370 | 13F |
| Gagnon Securities LLC | 524,865 | 1.65% | $36.0 million | 6.95% | +221,716 | 13F |
| Aberdeen Group plc | 457,201 | 1.43% | $31.4 million | 0.04% | +227,105 | 13F |
| Wellington Management Group LLP | 347,927 | 1.09% | $23.9 million | 0.00% | +6,922 | 13F |
| Bank of America Corp. | 346,211 | 1.09% | $23.8 million | 0.00% | +111,605 | 13F |
| Franklin Resources Inc. | 280,938 | 0.88% | $19.3 million | 0.00% | -326,283 | 13F |
| Dimensional Fund Advisors LP | 280,619 | 0.88% | $19.3 million | 0.00% | +14,828 | 13F |
| Norges Bank | 273,100 | 0.86% | $18.7 million | 0.00% | 13F | |
| Eventide Asset Management, LLC | 269,542 | 0.85% | $18.5 million | 0.25% | -189,473 | 13F |
| UBS Group AG | 208,663 | 0.65% | $14.3 million | 0.00% | +157,838 | 13F |
| Ameriprise Financial Inc. | 207,664 | 0.65% | $14.3 million | 0.00% | +11,775 | 13F |
| Jane Street Group, LLC | 204,592 | 0.64% | $14.0 million | 0.01% | new | 13F |
| Ashford Capital Management Inc. | 201,986 | 0.63% | $13.9 million | 1.49% | +27,474 | 13F |
| Portolan Capital Management, LLC | 200,315 | 0.63% | $13.8 million | 0.52% | +97,740 | 13F |
| Vanguard Portfolio Management LLC | 197,578 | 0.62% | $13.6 million | 0.00% | +24,192 | 13F |
| Alamea Verwaltungs GmbH | 185,989 | 0.58% | $12.8 million | 10.20% | no change | 13F |
| Northern Trust Corp. | 183,841 | 0.58% | $12.6 million | 0.00% | +8,074 | 13F |
| Charles Schwab Investment Management Inc. | 177,937 | 0.56% | $12.2 million | 0.00% | +7,322 | 13F |
| Gagnon Advisors, LLC | 177,870 | 0.56% | $12.2 million | 7.76% | +29,645 | 13F |
| Millennium Management LLC | 155,575 | 0.49% | $10.7 million | 0.01% | +5,669 | 13F |
| Vanguard Fiduciary Trust Co. | 152,865 | 0.48% | $10.5 million | 0.00% | +8,408 | 13F |
| Rockefeller Capital Management L.P. | 151,164 | 0.47% | $10.4 million | 0.02% | +54,574 | 13F |
| Susquehanna International Group, LLP | 142,315 | 0.45% | $9.8 million | 0.01% | +72,210 | 13F |
| Healthcare of Ontario Pension Plan Trust Fund | 141,500 | 0.44% | $9.7 million | 0.01% | new | 13F |
| BNP Paribas Financial Markets | 123,690 | 0.39% | $8.5 million | 0.00% | +115,972 | 13F |
| Raymond James Financial Inc. | 123,418 | 0.39% | $8.5 million | 0.00% | -486,655 | 13F |
| Silverarc Capital Management, LLC | 122,269 | 0.38% | $8.4 million | 0.93% | new | 13F |
| Royce & Associates LP | 112,136 | 0.35% | $7.7 million | 0.06% | -28,377 | 13F |
| Tudor Investment Corp. Et Al | 108,839 | 0.34% | $7.5 million | 0.03% | +75,299 | 13F |
| Fred Alger Management, LLC | 108,527 | 0.34% | $7.5 million | 0.03% | -94,244 | 13F |
| Science & Technology Partners, L.P. | 106,387 | 0.33% | $7.3 million | 1.23% | -134,813 | 13F |
| Thrivent Financial for Lutherans | 101,992 | 0.32% | $7.0 million | 0.01% | -51,729 | 13F |
| Point72 Asset Management, L.P. | 97,300 | 0.31% | $6.7 million | 0.01% | +21,505 | 13F |
| Barclays PLC | 97,234 | 0.30% | $6.7 million | 0.00% | +89,370 | 13F |
The 50 largest of the 223 funds that reported a position in WGS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on WGS
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 144,600 | $9.9 million | 30 June 2026 | 13F |
| Point72 Asset Management | Puts | 64,200 | $4.4 million | 30 June 2026 | 13F |
| Point72 Asset Management | Calls | 38,600 | $2.6 million | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 35,900 | $2.5 million | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 11 August 2026 | 13G | The Goldman Sachs Group, Inc. and 3 others | 1.7 million | 5.8% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 7 August 2026 | 13G/A | ARK Investment Management LLC and 3 others | 1.6 million | 5.3% | 31 July 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 28 July 2026 | 13G | BlackRock, Inc. and 1 other | 1.6 million | 5.5% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 22 May 2026 | 13D/A | CMLS Holdings LLC and 8 others | 5.4 million | 17.9% | 20 May 2026 | EDGAR | |
| 15 May 2026 | 13D/A | CMLS Holdings LLC and 8 others | 5.4 million | 17.9% | 14 May 2026 | EDGAR | |
| 11 May 2026 | 13D/A | CMLS Holdings LLC and 8 others | 5.0 million | 16.7% | 7 May 2026 | EDGAR | |
| 12 November 2025 | 13G/A | William Blair Investment Management, LLC and 1 other | 1.2 million | 4.3% | 30 September 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 21 September 2026 | 2,512 | $101.10 | SEC |
| 18 September 2026 | 20 | $104.95 | SEC |
| 17 September 2026 | 3 | $97.42 | SEC |
| 16 September 2026 | 118 | $94.64 | SEC |
| 11 September 2026 | 118 | $83.96 | SEC |
| 3 September 2026 | 218 | $86.72 | SEC |
| 31 August 2026 | 200 | $86.34 | SEC |
| 26 August 2026 | 1,578 | $87.41 | SEC |
| 24 August 2026 | 743 | $87.07 | SEC |
| 18 August 2026 | 68 | $77.39 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.