Quentin S. Blackford
CIK 1612451 · President and CEO · last filed 2026-06-01
Quentin S. Blackford is a President and CEO who has filed 72 SEC Form 4 insider transactions across 6 companies since 2014. The most recent filing shows the insider was granted $17.2K of IRTC on Jun 1, 2026. Across all open-market trades the lifetime net is −$57.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $31.4M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$31.39M
6
72
-$57.84M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| IRTC | President and CEO | 204,333 | $113.65 | $23.22M | -$21.29M | 18 | 2026-06-01 |
| ATEC | Director | 568,369 | $8.28 | $4.71M | $256.6K | 12 | 2025-06-13 |
| Paragon 28, Inc. (FNA) Delisted | Director | 0 | $13.09 | $0 | $0 | 4 | 2025-04-21 |
| AXGN | Director | 27,335 | $43.00 | $1.18M | $435.3K | 9 | 2022-04-01 |
| DXCM | Chief Operating Officer | 30,303 | $75.37 | $2.28M | -$35.96M | 16 | 2021-09-10 |
| NUVASIVE INC (NUVA) Delisted | CFO | 24,270 | $39.75 | $964.7K | -$1.28M | 13 | 2017-02-10 |
Recent Filings
72 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-01 | IRTC | Grant (A) | +178 | $17.2K | EDGAR |
| 2026-03-03 | IRTC | Sell (S) | −13,813 | -$1.77M | EDGAR |
| 2026-02-27 | IRTC | Grant (A) | +31,842 | $0 | EDGAR |
| 2026-02-26 | IRTC | Mixed | +21,147 | -$3.46M | EDGAR |
| 2025-11-04 | IRTC | Sell (S) | −14,059 | -$2.57M | EDGAR |
| 2025-08-06 | IRTC | Sell (S) | −30,000 | -$4.82M | EDGAR |
| 2025-06-13 | ATEC | Grant (A) | +15,131 | $0 | EDGAR |
| 2025-06-03 | IRTC | Grant (A) | +297 | $21.2K | EDGAR |
| 2025-05-06 | ATEC | Gift (G) | −21,000 | $0 | EDGAR |
| 2025-04-21 | Paragon 28, Inc. (FNA) Delisted | Disp (D) | −50,554 | $0 | EDGAR |