Blackford Quentin S.
SEC CIK 1612451 · EDGAR
BoughtSold
Companies
| Ticker | Company | Title | Holding | Bought | Sold | Trades | First | Last |
|---|---|---|---|---|---|---|---|---|
| IRTC | iRhythm Holdings, Inc. | Pres, CEO, Dir | 226.0K | $997.6K | $25.64M | 24 | 2021-10-05 | 2026-08-10 |
| ATEC | Alphatec Holdings, Inc. | Dir | 600.4K | $256.6K | — | 8 | 2022-06-15 | 2026-06-10 |
| AXGN | Axogen, Inc. | Dir | 27.3K | — | — | 1 | 2022-03-30 | 2022-03-30 |
| DXCM | Dexcom | COO | 19.3K | — | $10.22M | 1 | 2021-09-08 | 2021-09-08 |
Most active insiders at IRTC, 12 months
| # | Insider | Title | Bought | Sold |
|---|---|---|---|---|
| 1 | Blackford Quentin S. | Pres, CEO, Dir | — | $11.15M |
| 2 | Patterson Chad | CHIEF COMM, PRODUCT Off | — | $3.05M |
| 3 | Murphy Patrick Michael | CLO, CBO | — | $2.96M |
| 4 | Wilson Daniel G. | CFO | — | $2.89M |
| 5 | Turakhia Minang | CHIEF MED, SCI OFCR EVP ADVTECH | — | $2.64M |
| 6 | TALWALKAR ABHIJIT Y | Dir | $56.9K | $2.33M |
| 7 | Shrishrimal Sumi | EVP, CRO | — | $2.06M |
| 8 | Smith Mervin | EVP Strategic Business Ops | — | $1.19M |
| 9 | Rosenbaum Marc Wade | CAO | — | $872.7K |
| 10 | Rodda Julianne | EVP, CHRO | — | $257.9K |
Transactions 34
| X | Filed | Traded | Ticker | Company | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-11 16:02 | 2026-08-07 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +48.5K | 252.9K | +24% | $0 | |
| 2026-08-11 16:02 | 2026-08-10 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $124.65 | -26.9K | 226.0K | -11% | -$3.35M | |
| 2026-06-12 17:34 | 2026-06-10 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | A - Grant | $0.00 | +32.0K | 600.4K | +6% | $0 | |
| 2026-06-01 16:26 | 2026-05-29 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $96.81 | +178 | 204.3K | +0.1% | +$17.2K | |
| M | 2026-03-03 | 2026-03-02 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $128.44 | -13.8K | 213.6K | -6% | -$1.77M |
| 2026-02-27 | 2026-02-25 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +31.8K | 218.0K | +17% | $0 | |
| 2026-02-26 | 2026-02-24 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +46.7K | 211.7K | +28% | $0 | |
| 2026-02-26 | 2026-02-25 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $135.42 | -25.5K | 186.1K | -12% | -$3.46M | |
| 2025-11-04 | 2025-11-03 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $182.94 | -14.1K | 165.0K | -8% | -$2.57M | |
| M | 2025-08-06 | 2025-08-05 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $160.54 | -30.0K | 185.6K | -14% | -$4.82M |
| 2025-06-13 | 2025-06-11 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | A - Grant | $0.00 | +15.1K | 568.4K | +3% | $0 | |
| 2025-06-03 | 2025-05-30 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $71.46 | +297 | 209.0K | +0.1% | +$21.2K | |
| 2025-05-06 | 2025-05-05 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | G - Gift | $0.00 | -21.0K | 553.2K | -4% | $0 | |
| 2025-03-04 | 2025-03-03 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $108.77 | -8,145 | 208.7K | -4% | -$885.9K | |
| M | 2025-02-27 | 2025-02-25+ | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +79.2K | 239.1K | +50% | $0 |
| 2025-02-27 | 2025-02-26 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $112.13 | -22.3K | 216.9K | -9% | -$2.50M | |
| 2024-12-05 | 2024-11-21 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | G - Gift | $0.00 | -15.1K | 574.2K | -3% | $0 | |
| 2024-11-05 | 2024-11-04 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $77.41 | -16.1K | 159.9K | -9% | -$1.25M | |
| 2024-11-05 | 2024-05-31 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $74.98 | +280 | 176.1K | +0.2% | +$21.0K | |
| 2024-06-14 | 2024-06-12 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | A - Grant | $0.00 | +16.7K | 589.4K | +3% | $0 | |
| 2024-03-08 | 2024-03-07 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | P - Purchase | $12.83 | +20.0K | 572.6K | +4% | +$256.6K | |
| 2024-03-05 | 2024-03-04 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $111.14 | -4,221 | 175.8K | -2% | -$469.1K | |
| 2024-03-01 | 2024-02-28 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +30.9K | 204.7K | +18% | $0 | |
| 2024-03-01 | 2024-02-29 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $121.96 | -24.7K | 180.0K | -12% | -$3.01M | |
| 2024-02-29 | 2024-02-27 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +45.3K | 173.8K | +35% | $0 | |
| A | 2023-12-06 | 2023-06-06 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | P - Purchase | $102.27 | +9,755 | 128.5K | +8% | +$997.6K |
| 2023-06-21 | 2023-06-20 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | A - Grant | $0.00 | +9,908 | 552.6K | +2% | $0 | |
| 2023-06-06 | 2023-06-06 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $102.27 | +9,755 | 128.5K | +8% | +$997.6K | |
| 2023-03-01 | 2023-02-27 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +28.8K | 118.5K | +32% | $0 | |
| M | 2022-11-04 | 2022-11-02 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | S - Sale | $122.40 | -12.7K | 89.3K | -12% | -$1.55M |
| 2022-06-17 | 2022-06-15 | ATEC | Alphatec Holdings, Inc. | Blackford Quentin S. | Dir | A - Grant | $0.00 | +18.5K | 542.7K | +4% | $0 | |
| D | 2022-04-01 | 2022-03-30 | AXGN | Axogen, Inc. | Blackford Quentin S. | Dir | M - OptEx | $0.00 | +3,036 | 27.3K | +12% | $0 |
| 2021-10-07 | 2021-10-05 | IRTC | iRhythm Holdings, Inc. | Blackford Quentin S. | Pres, CEO, Dir | A - Grant | $0.00 | +102.0K | 102.0K | New | $0 | |
| M | 2021-09-10 | 2021-09-08+ | DXCM | Dexcom | Blackford Quentin S. | COO | S - Sale | $547.62 | -18.7K | 19.3K | -49% | -$10.22M |
Purchase Sale Sale after option exercise All abbreviations