WGS insider buying – GeneDx Holdings Corp.
19 insider purchases since 2016 worth $169.0M by 9 different insiders. Last 12 months: 5 purchases, $106.6M. Most recent filing: 2026-06-08.
Same time range as the chart above - each mark sits under the week of the trade. Circles = purchases (height = price paid, size = amount), red triangles = open-market sales of $50k+. Prices as reported, not adjusted for later stock splits.
Purchases are open-market buys (SEC Form 4, code "P") - insiders paying with their own money. Sales are open-market sales (code "S") of $50,000 or more; many sales are pre-planned (Rule 10b5-1) or made for taxes and diversification. Each row links to the original filing.
Bought, sold, still holding?
| Insider | Bought | First / last buy | Sold since 2016 | Holds now* | Status |
|---|---|---|---|---|---|
| Meister Keith A. Director | $79.6M 4× · 1,825,941 sh | 2025-05-08 2026-05-13 | 1× · $1.1M last 2023-11-15 | 356,849 shares as of 2026-06-23 | Holds (sold earlier) |
| Casdin Eli Director | $45.4M 4× · 86,124,285 sh | 2023-01-31 2026-06-04 | 1× · $60.5M last 2025-08-22 | 4,083,648 shares as of 2026-06-23 | Holds (sold earlier) |
| Casdin Partners Master Fund, L.P. Director | $21.8M 2× · 540,900 sh | 2024-03-04 2026-05-18 | – | 3,555,072 shares as of 2026-05-20 | Holds - never sold |
| MOUNT SINAI HEALTH SYSTEM, INC. 10% Owner | $10.0M 1× · 28,571,428 sh | 2023-01-31 2023-01-31 | – | 123,176,901 shares as of 2023-02-02 | Holds - never sold |
| OPKO HEALTH, INC. 10% Owner | $5.0M 1× · 14,285,714 sh | 2023-01-26 2023-01-26 | 10× · $29.7M last 2024-08-15 | 2,646,972 shares as of 2024-08-19 | Sold part |
| Casdin Capital, LLC Director | $3.9M 2× · 180,000 sh | 2024-05-13 2024-06-03 | – | 3,832,697 shares as of 2024-06-05 | Holds - never sold |
| Corvex Management LP Director | $3.0M 1× · 50,000 sh | 2025-05-14 2025-05-14 | – | 3,374,334 shares as of 2025-05-16 | Holds - never sold |
| Ryan Jason Officer | $161,382 1× · 114,742 sh | 2023-11-16 2023-11-16 | 2× · $8.3M last 2025-08-27 | 118,764 shares as of 2026-06-23 | Sold part |
| PFENNIGER RICHARD C JR Director | $69,900 3× · 20,000 sh | 2023-05-18 2023-11-08 | – | 45,082 shares as of 2026-06-23 | Holds - never sold |
* Shares held after the insider's most recent SEC filing for this company (all share classes, direct and indirect). If an insider stops filing, later changes are not known.
Insider buying and selling by year
| Year | Purchases | Bought | Buyers | Sales | Sold |
|---|---|---|---|---|---|
| 2026 | 5 | $106.6M | 3 | 20 | $12.3M |
| 2025 | 2 | $8.6M | 2 | 39 | $105.4M |
| 2024 | 5 | $8.5M | 3 | 29 | $116.0M |
| 2023 | 7 | $45.2M | 5 | 3 | $1.2M |
Insider purchases
| Filed | Insider | Role | Shares | Avg price | Value | Holdings | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-08 | Casdin Eli | Director | 200,000 | $55.55 | $11.1M | +5.7% | SEC |
| 2026-05-20 | Casdin Partners Master Fund, L.P. | Director | 500,000 | $42.92 | $21.5M | +16.6% | SEC |
| 2026-05-15 | Meister Keith A. | Director | 351,273 | $39.19 | $13.8M | +7.9% | SEC |
| 2026-05-11 | Meister Keith A. | Director | 1,205,147 | $38.84 | $46.8M | +37.3% | SEC |
| 2026-03-05 | Meister Keith A. | Director | 169,521 | $79.40 | $13.5M | +5.5% | SEC |
| 2025-05-16 | Corvex Management LP | Director | 50,000 | $60.16 | $3.0M | +1.7% | SEC |
| 2025-05-12 | Meister Keith A. | Director | 100,000 | $56.01 | $5.6M | +3.4% | SEC |
| 2024-06-05 | Casdin Capital, LLC | Director | 130,000 | $21.21 | $2.8M | +4.4% | SEC |
| 2024-05-31 | Casdin Eli | Director | 40,000 | $21.07 | $842,800 | +1.4% | SEC |
| 2024-05-28 | Casdin Eli | Director | 170,000 | $20.15 | $3.4M | +6.2% | SEC |
| 2024-05-15 | Casdin Capital, LLC | Director | 50,000 | $23.31 | $1.2M | +1.8% | SEC |
| 2024-03-06 | Casdin Partners Master Fund, L.P. | Director | 40,900 | $8.74 | $357,547 | +1.5% | SEC |
| 2023-11-20 | Ryan Jason | Officer | 114,742 | $1.41 | $161,382 | SEC | |
| 2023-11-08 | PFENNIGER RICHARD C JR | Director | 10,000 | $1.49 | $14,900 | +91.6% | SEC |
| 2023-08-18 | PFENNIGER RICHARD C JR | Director | 5,000 | $5.10 | $25,500 | +84.5% | SEC |
| 2023-05-22 | PFENNIGER RICHARD C JR | Director | 5,000 | $5.90 | $29,500 | +544.7% | SEC |
| 2023-02-02 | MOUNT SINAI HEALTH SYSTEM, INC. | 10% Owner | 28,571,428 | $0.35 | $10.0M | +30.2% | SEC |
| 2023-02-02 | Casdin Eli | Director | 85,714,285 | $0.35 | $30.0M | +3983.5% | SEC |
| 2023-01-31 | OPKO HEALTH, INC. | 10% Owner | 14,285,714 | $0.35 | $5.0M | +17.9% | SEC |
Insider sales
| Filed | Insider | Role | Shares | Avg price | Value | Type | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | Stueland Katherine | CEO | 10,501 | $97.61 | $1.0M | Sale | SEC |
| 2026-09-18 | Feeley Kevin | CFO | 3,728 | $97.61 | $363,898 | Sale | SEC |
| 2026-09-11 | Stueland Katherine | CEO | 3,692 | $84.22 | $310,940 | Sale | SEC |
| 2026-09-11 | Feeley Kevin | CFO | 1,285 | $84.22 | $108,223 | Sale | SEC |
| 2026-06-18 | Stueland Katherine | CEO | 10,501 | $60.76 | $638,092 | Sale | SEC |
| 2026-06-18 | Feeley Kevin | CFO | 3,729 | $60.76 | $226,592 | Sale | SEC |
| 2026-06-11 | Stueland Katherine | CEO | 3,639 | $53.77 | $195,669 | Sale | SEC |
| 2026-06-11 | Feeley Kevin | CFO | 1,266 | $53.77 | $68,073 | Sale | SEC |
| 2026-05-01 | Stueland Katherine | CEO | 2,172 | $65.19 | $141,595 | Sale | SEC |
| 2026-03-30 | Stueland Katherine | CEO | 46,933 | $63.17 | $3.0M | Sale | SEC |
| 2026-03-30 | Feeley Kevin | CFO | 8,818 | $63.17 | $557,042 | Sale | SEC |
| 2026-03-17 | Stueland Katherine | CEO | 17,179 | $76.80 | $1.3M | Sale | SEC |
| 2026-03-17 | Feeley Kevin | CFO | 5,706 | $76.80 | $438,207 | Sale | SEC |
| 2026-03-11 | Stueland Katherine | CEO | 3,678 | $86.75 | $319,066 | Sale | SEC |
| 2026-03-11 | Feeley Kevin | CFO | 1,280 | $86.75 | $111,040 | Sale | SEC |
Showing the latest 15 of 91 sales of $50,000+ since 2016.
Compiled automatically from public SEC filings. Not investment advice. Get every new insider purchase in the daily report.
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