| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
President and CEO | Director | Chief Operating Officer +3 more
4 companies
Blackford Quentin S. is a Director at ATEC, with reported holdings spanning 4 companies. Recent filings cover 4 purchases and 82 sales. Those positions are worth an estimated $38.9M at current prices.
Our model assigns Blackford Quentin S. a middling insider score of 60/100, based on 15 past trades. Over a 12-month horizon, 61.5% of those trades were profitable, with an average 12-month return of +1.3%.
Blackford Quentin S.'s largest disclosed position is in IRTC as President and CEO, worth about $28.2M. The recent filings there lean toward selling, a net 198,434 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 26,859 | $124.65 | $3,348,011.95 | -10.6% | - | - | |
| Mar 2, 2026 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 13,813 | $128.44 | $1,774,173.93 | -6.3% | -15.0% | - | |
| Feb 25, 2026 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 25,540 | $135.42 | $3,458,598.71 | -12.1% | -15.8% | - | |
| Nov 3, 2025 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 14,059 | $182.94 | $2,571,907.07 | -7.9% | -15.8% | - | |
| Aug 5, 2025 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell10b5-1 | 30,000 | $160.54 | $4,816,191.45 | -14.4% | +15.4% | -22.4% | |
| Mar 3, 2025 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 8,145 | $108.77 | $885,931.65 | -3.8% | +28.9% | +15.4% | |
| Feb 26, 2025 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 22,252 | $112.13 | $2,495,116.76 | -9.3% | +33.8% | +28.1% | |
| Nov 4, 2024 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 16,145 | $77.41 | $1,249,784.45 | -9.2% | +33.7% | +122.4% | |
| Mar 7, 2024 | ATEC Alphatec Holdings, Inc. | Director | Buy | 20,000 | $12.83 | $256,600.00 | +3.6% | -22.9% | -18.9% | |
| Mar 4, 2024 | IRTC Irhythm Holdings, Inc. | President and CEO | Sell | 4,221 | $111.14 | $469,121.94 | -2.3% | -22.9% | -1.6% |