Blackford Quentin S.

iRhythm Technologies, Inc. · President and CEO

Blackford Quentin S. is listed in public filings as director, officer: President and CEO. This Blackford Quentin S. insider trading page organizes Form 4 disclosures, reported purchases and sales, transaction dates, share amounts, related issuers, and historical insider activity so readers can review the person's public trading record in one place. Companies and tickers connected to this insider trading profile include iRhythm Technologies, Inc. (IRTC), Alphatec Holdings, Inc. (ATEC), and Paragon 28, Inc. Common Stock (FNA). Investors use Blackford Quentin S.'s insider trading disclosures to study buying and selling patterns, position changes, company-specific activity, and the source evidence behind each reported transaction.

Latest Actions

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
iRhythm Technologies, Inc.IRTC$20M204.3k sharesGrant / ExerciseMay 29, 2026$17.2K178 shares$96.82--

Insider Trades History

CompanyHolding ValueLast TransactionAmountTransaction PriceCurrent Price
iRhythm Technologies, Inc.IRTC$26M204.2k sharesSellMar 2, 2026$696.6K5.4k shares$128.44--
iRhythm Technologies, Inc.IRTC$27M213.6k sharesSellMar 2, 2026$558.3K4.3k shares$128.44--
iRhythm Technologies, Inc.IRTC$27M209.6k sharesSellMar 2, 2026$519.3K4k shares$128.44--
iRhythm Technologies, Inc.IRTC$25M186.1k sharesSellFeb 25, 2026$3.5M25.5k shares$135.42--
iRhythm Technologies, Inc.IRTC--218k sharesGrant / ExerciseFeb 25, 2026Disclosure amount unavailable31.8k shares----
iRhythm Technologies, Inc.IRTC--211.7k sharesGrant / ExerciseFeb 24, 2026Disclosure amount unavailable46.7k shares----
iRhythm Technologies, Inc.IRTC$30M165k sharesSellNov 3, 2025$2.6M14.1k shares$182.94--
iRhythm Technologies, Inc.IRTC$30M190.5k sharesSellAug 5, 2025$1.6M9.8k shares$160.06--
iRhythm Technologies, Inc.IRTC$32M200.3k sharesSellAug 5, 2025$1.4M8.7k shares$158.85--
iRhythm Technologies, Inc.IRTC$30M185.6k sharesSellAug 5, 2025$788.4K4.9k shares$160.73--
iRhythm Technologies, Inc.IRTC$29M179.3k sharesSellAug 5, 2025$520.3K3.2k shares$163.93--
iRhythm Technologies, Inc.IRTC$30M184k sharesSellAug 5, 2025$259.1K1.6k shares$161.92--
iRhythm Technologies, Inc.IRTC$30M182.5k sharesSellAug 5, 2025$247.2K1.5k shares$163.30--
iRhythm Technologies, Inc.IRTC$30M179k sharesSellAug 5, 2025$50.5K306 shares$165.00--
Alphatec Holdings, Inc.ATEC--568.4k sharesGrant / ExerciseJun 11, 2025Disclosure amount unavailable15.1k shares----
iRhythm Technologies, Inc.IRTC$15M209k sharesGrant / ExerciseMay 30, 2025$21.2K297 shares$71.46--
Alphatec Holdings, Inc.ATEC--553.2k sharesGrant / ExerciseMay 5, 2025Disclosure amount unavailable21k shares----
Paragon 28, Inc. Common StockFNA$050.6k sharesOtherApr 21, 2025$657.2K50.6k shares$13.00--
iRhythm Technologies, Inc.IRTC$23M208.7k sharesSellMar 3, 2025$885.9K8.1k shares$108.77--
iRhythm Technologies, Inc.IRTC$24M216.9k sharesSellFeb 26, 2025$2.5M22.3k shares$112.13--
iRhythm Technologies, Inc.IRTC--239.1k sharesGrant / ExerciseFeb 26, 2025Disclosure amount unavailable38.6k shares----
iRhythm Technologies, Inc.IRTC--200.5k sharesGrant / ExerciseFeb 25, 2025Disclosure amount unavailable40.6k shares----
Alphatec Holdings, Inc.ATEC--574.2k sharesGrant / ExerciseNov 21, 2024Disclosure amount unavailable15.1k shares----
iRhythm Technologies, Inc.IRTC$12M159.9k sharesSellNov 4, 2024$1.2M16.1k shares$77.41--
Alphatec Holdings, Inc.ATEC--589.4k sharesGrant / ExerciseJun 12, 2024Disclosure amount unavailable16.7k shares----