GeneDx Holdings Corp.
Total Trades
224
Buys
13
Sells
118
Largest Trade
N/A
Insiders
18
Institutional Funds
229
Inst. Value
$1M+
Activist Filings
22
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI | 10% Owner | SELL | $1M+ | 866K | $75.00 | Nov 4, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $15K–$50K | 274 | $66.60 | Oct 31, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 753 | — | Oct 31, 2024 |
| Stueland Katherine | CEO | SELL | $100K–$500K | 2K | $66.60 | Oct 31, 2024 |
| Stueland Katherine | CEO | EXERCISE | N/A | 4K | — | Oct 31, 2024 |
| OPKO HEALTH, INC. | 10% Owner | SELL | $1M+ | 140K | $34.02 | Aug 19, 2024 |
| OPKO HEALTH, INC. | 10% Owner | SELL | $1M+ | 89K | $33.50 | Aug 2, 2024 |
| OPKO HEALTH, INC. | 10% Owner | SELL | $1M+ | 50K | $33.86 | Jul 31, 2024 |
| Stueland Katherine | CEO | SELL | $50K–$100K | 2K | $33.54 | Jul 31, 2024 |
| Stueland Katherine | CEO | EXERCISE | N/A | 4K | — | Jul 31, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $1K–$15K | 274 | $33.54 | Jul 31, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 753 | — | Jul 31, 2024 |
| OPKO HEALTH, INC. | 10% Owner | SELL | $1M+ | 89K | $27.58 | Jul 3, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 7K | — | Jun 18, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $50K–$100K | 3K | $28.31 | Jun 18, 2024 |
| Stueland Katherine | CEO | SELL | $100K–$500K | 8K | $28.31 | Jun 18, 2024 |
| Stueland Katherine | CEO | EXERCISE | N/A | 19K | — | Jun 18, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $15K–$50K | 895 | $24.92 | Jun 11, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 2K | — | Jun 11, 2024 |
| Stueland Katherine | CEO | SELL | $50K–$100K | 3K | $24.92 | Jun 11, 2024 |
| Stueland Katherine | CEO | EXERCISE | N/A | 7K | — | Jun 11, 2024 |
| Casdin Capital, LLC | Director | BUY | $1M+ | 130K | $21.21 | Jun 6, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $1K–$15K | 262 | $20.55 | Jun 4, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 717 | — | Jun 4, 2024 |
| Casdin Capital, LLC | Director | BUY | $500K+ | 40K | $21.07 | May 31, 2024 |
| Casdin Capital, LLC | Director | BUY | $1M+ | 170K | $20.15 | May 29, 2024 |
| Stueland Katherine | CEO | SELL | $50K–$100K | 6K | $11.04 | Apr 30, 2024 |
| Stueland Katherine | CEO | EXERCISE | N/A | 15K | — | Apr 30, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | EXERCISE | N/A | 3K | — | Apr 30, 2024 |
| Feeley Kevin | CHIEF FINANCIAL OF… | SELL | $1K–$15K | 1K | $11.04 | Apr 30, 2024 |
| Saad Kareem | CHIEF TRANSFORMATI… | EXERCISE | N/A | 546 | — | Jan 23, 2024 |
| Saad Kareem | CHIEF TRANSFORMATI… | SELL | <$1K | 193 | $3.24 | Jan 23, 2024 |
| Saad Kareem | Chief Transformati… | SELL | <$1K | 105 | $2.58 | Jan 4, 2024 |
| Ryan Jason | Executive Chairman | BUY | $100K–$500K | 115K | $1.41 | Nov 20, 2023 |
| Meister Keith A. | Director | SELL | $1M+ | 884K | $1.29 | Nov 17, 2023 |
| PFENNIGER RICHARD C JR | Director | BUY | $1K–$15K | 10K | $1.49 | Nov 9, 2023 |
| Saad Kareem | Chief Transformati… | SELL | <$1K | 164 | $3.44 | Oct 23, 2023 |
| Saad Kareem | Chief Transformati… | EXERCISE | N/A | 546 | — | Oct 23, 2023 |
| Ryan Jason | Executive Chairman | SELL | <$1K | 42 | $3.19 | Oct 18, 2023 |
| Saad Kareem | Chief Transformati… | EXERCISE | N/A | 273 | — | Oct 3, 2023 |
| Saad Kareem | Chief Transformati… | SELL | <$1K | 85 | $3.56 | Oct 3, 2023 |
| Stueland Katherine | CEO | SELL | $15K–$50K | 11K | $4.16 | Sep 19, 2023 |
| Stueland Katherine | CEO | EXERCISE | N/A | 19K | — | Sep 19, 2023 |
| Saad Kareem | Chief Transformati… | SELL | $1K–$15K | 2K | $4.16 | Sep 19, 2023 |
| Saad Kareem | Chief Transformati… | EXERCISE | N/A | 5K | — | Sep 19, 2023 |
| Feeley Kevin | CFO | EXERCISE | N/A | 7K | — | Sep 19, 2023 |
| Feeley Kevin | CFO | SELL | $1K–$15K | 3K | $4.16 | Sep 19, 2023 |
| Stueland Katherine | CEO | SELL | $1K–$15K | 3K | $4.62 | Sep 12, 2023 |
| Stueland Katherine | CEO | EXERCISE | N/A | 7K | — | Sep 12, 2023 |
| Saad Kareem | Chief Transformati… | EXERCISE | N/A | 3K | — | Sep 12, 2023 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 229 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.0M | $1M+ | SH |
| VANGUARD GROUP INC | 1.0M | $1M+ | SH |
| ORACLE INVESTMENT MANAGEMENT INC | 885K | $1M+ | SH |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 809K | $1M+ | SH |
| ARK Investment Management LLC | 605K | $1M+ | SH |
| Zweig-DiMenna Associates LLC | 598K | $1M+ | SH |
| LORD, ABBETT & CO. LLC | 505K | $1M+ | SH |
| STATE STREET CORP | 456K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 438K | $1M+ | SH |
| Amova Asset Management Americas, Inc. | 382K | $1M+ | SH |
| Sumitomo Mitsui Trust Group, Inc. | 382K | $1M+ | SH |
| RAYMOND JAMES FINANCIAL INC | 352K | $1M+ | SH |
| Capital International Investors | 283K | $1M+ | SH |
| JENNISON ASSOCIATES LLC | 258K | $1M+ | SH |
| GAGNON SECURITIES LLC | 254K | $1M+ | SH |
| ALLIANCEBERNSTEIN L.P. | 253K | $1M+ | SH |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 227K | $1M+ | SH |
| Assenagon Asset Management S.A. | 206K | $1M+ | SH |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 193K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 177K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
SC 13G/A · Nov 12, 2025
4.3%
1.2M shares
SC 13D/A · Aug 26, 2025
1.9%
537K shares
Summit Partners Public Asset Management, LLC
SC 13G/A · Aug 14, 2025
3.0%
867K shares
SC 13G/A · Aug 6, 2025
0.6%
163K shares
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
SC 13G · Jul 30, 2025
5.7%
1.6M shares
SC 13G · May 12, 2025
10.0%
2.8M shares
SC 13G/A · May 9, 2025
3.9%
1.1M shares
SC 13D/A · May 7, 2025
1.9%
537K shares
Summit Partners Public Asset Management, LLC
SC 13G · Feb 12, 2025
5.2%
1.4M shares
SC 13G · Feb 5, 2025
5.2%
1.4M shares
SC 13D/A · Nov 21, 2024
5.0%
1.4M shares
SC 13D/A · Nov 8, 2024
6.4%
1.7M shares
SC 13G/A · Nov 8, 2024
5.0%
1.3M shares
SC 13D/A · Sep 18, 2024
8.1%
2.2M shares
SC 13D/A · Aug 23, 2024
9.3%
2.5M shares
SC 13D/A · Aug 12, 2024
10.4%
2.8M shares
SC 13D/A · Jul 26, 2024
11.9%
3.1M shares
SC 13D/A · Jul 5, 2024
13.3%
3.5M shares
SC 13D/A · May 31, 2024
2.1%
537K shares
SC 13G · Feb 10, 2024
7.0%
1.8M shares
SC 13D/A · Nov 17, 2023
2.1%
537K shares
SC 13G/A · Jun 9, 2023
2.4%
611K shares