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Adaptive Biotechnologies Corp

ADPT
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001478320

In the last 90 days, Adaptive Biotechnologies Corp insiders filed 0 open-market purchases and 14 sales; 301 institutions reported holding it in 13F filings for Q2 2026, worth $3.34B in total; superinvestors Viking Global Investors and ARK Invest hold it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Adaptive Biotechnologies Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
0 filings
Open-market sells
14 filings
7 insiders, $46.3M in total
Insiders trading
7
Net value
−$46.3M
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Adaptive Biotechnologies Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Adaptive Biotechnologies Corp
NameTitleLast reported holdingLast filingFilings, past year
Lo FrancisChief People Officer220,867Sep 18, 202612
Bobulsky SusanChief Commercial Officer, MRD395,794Sep 17, 202610
Owen Katey EinterzDirector66,100Sep 2, 20263
Hershberg RobertDirector46,683Aug 20, 20263
Robins Chad MCEO and Chairman2,180,518Aug 19, 20269
Neupert Peter MDirector130,625Aug 19, 20262
Robins Harlan SChief Scientific Officer812,058Jul 23, 202611
Benzeno SharonChief Commercial Ofc Imm Med221,278Jun 30, 20265
Griffin Michelle ReneeDirector15,625Jun 29, 20264
Piskel KyleChief Financial Officer256,725May 20, 20267
Rubinstein JuliePresident and COO377,802Apr 29, 202615
Pellini Michael JDirector69,690Mar 6, 20250
Taylor Stacy LSVP and General Counsel139,365Aug 23, 20240
Peterson TychoChief Financial Officer531,553Mar 6, 20240
Sood NitinChief Commercial Officer, MRD214,808Aug 8, 20230
Adams R MarkChief Operating Officer175,361Apr 12, 20230
Trigg LeslieDirector25,907Mar 8, 20230
Conroy Kevin TDirector22,968Mar 8, 20230
Baldo LanceChief Medical Officer17,171Mar 10, 20220
Cohen Chad MChief Financial Officer21,604Dec 23, 20210
Palaniappan JyotiSVP, Diagnostics, T-Detect9,158Jul 19, 20210

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Jul 1, 2021 (view filing)Jun 301 dayTaylor Stacy LSVP and General CounselSSale−4.17K$41.42−$172.6K−21.7%15.0K after2 lots
Jul 8, 2021 (view filing)Jul 6-72 daysCohen Chad MChief Financial OfficerSSale−20.0K$38.68−$773.6K−48.1%21.6K after3 lots
Jul 8, 2021 (view filing)Jul 7-81 dayAdams R MarkChief Operating OfficerSSale−3.13K$37.17−$116.2K−5.4%55.0K after2 lots
Jul 14, 2021 (view filing)Jul 122 daysRobins Chad MCEO and ChairmanSSale−1.50K$38.24−$57.4K−0.1%1.72M after
Jul 19, 2021 (view filing)Jul 145 daysLateGriffin Michelle ReneeDirectorSSale−2.50K$36.80−$92.0K−62.4%1.50K after
Jul 19, 2021 (view filing)Jul 19Same dayPalaniappan JyotiSVP, Diagnostics, T-DetectSSale−651$36.12−$23.5K−6.6%9.16K after
Jul 21, 2021 (view filing)Jul 19-212 daysRobins Harlan SChief Scientific OfficerSSale−11.7K$37.47−$437.9K−14.4%69.4K after6 lots
Aug 12, 2021 (view filing)Aug 10-112 daysCohen Chad MChief Financial OfficerSSale−15.0K$34.07−$511.0K−41.0%21.6K after3 lots
Aug 27, 2021 (view filing)Aug 25-272 daysRobins Harlan SChief Scientific OfficerSSale−11.7K$34.25−$400.2K−14.4%69.4K after4 lots
Aug 30, 2021 (view filing)Aug 273 daysGriffin Michelle ReneeDirectorSSale−14.9K$35.00−$522.1K−90.8%1.50K after
Sep 9, 2021 (view filing)Sep 72 daysTaylor Stacy LSVP and General CounselSSale−495$40.00−$19.8K−3.2%15.0K after
Sep 9, 2021 (view filing)Sep 7-82 daysCohen Chad MChief Financial OfficerSSale−14.4K$39.47−$567.3K−40.0%21.6K after2 lots
Sep 10, 2021 (view filing)Sep 8-102 daysRobins Chad MCEO and ChairmanSSale−43.5K$38.43−$1.67M−2.5%1.67M after5 lots
Sep 15, 2021 (view filing)Sep 13-152 daysRobins Harlan SChief Scientific OfficerSSale−11.7K$36.98−$432.1K−14.4%69.4K after6 lots
Oct 7, 2021 (view filing)Oct 5-62 daysCohen Chad MChief Financial OfficerSSale−10.0K$32.41−$324.1K−31.6%21.6K after2 lots
Oct 8, 2021 (view filing)Oct 6-82 daysRobins Harlan SChief Scientific OfficerSSale−11.7K$32.95−$385.0K−14.4%69.4K after4 lots
Oct 8, 2021 (view filing)Oct 7-81 dayAdams R MarkChief Operating OfficerSSale−3.13K$33.16−$103.6K−5.7%51.9K after2 lots
Oct 21, 2021 (view filing)Oct 19-212 daysRobins Harlan SChief Scientific OfficerSSale−11.2K$33.71−$377.6K−13.9%69.4K after4 lots
Nov 12, 2021 (view filing)Nov 9-103 daysCohen Chad MChief Financial OfficerSSale−10.0K$34.98−$349.8K−31.6%21.6K after2 lots
Nov 19, 2021 (view filing)Nov 17-182 daysRobins Harlan SChief Scientific OfficerSSale−4.00K$32.00−$128.0K−5.5%69.4K after2 lots
Dec 23, 2021 (view filing)Dec 221 dayCohen Chad MChief Financial OfficerSSale−10.0K$30.00−$300.0K−31.6%21.6K after
Dec 23, 2021 (view filing)Dec 221 dayTaylor Stacy LSVP and General CounselSSale−15.3K$30.00−$460.1K−50.5%15.0K after
Jan 10, 2022 (view filing)Jan 73 daysAdams R MarkChief Operating OfficerSSale−1.02K$23.32−$23.8K−2.0%50.8K after
Mar 8, 2022 (view filing)Mar 71 dayAdams R MarkChief Operating OfficerSSale−1.24K$12.01−$14.9K−1.0%123.7K after
Mar 8, 2022 (view filing)Mar 71 dayRobins Chad MCEO and ChairmanSSale−4.42K$12.01−$53.1K−0.2%1.92M after
Mar 8, 2022 (view filing)Mar 71 dayRobins Harlan SChief Scientific OfficerSSale−4.52K$12.01−$54.2K−1.4%312.0K after
Mar 8, 2022 (view filing)Mar 71 dayLo FrancisChief People OfficerSSale−1.57K$12.01−$18.8K−1.7%93.2K after
Mar 8, 2022 (view filing)Mar 71 dayPiskel KylePrincipal Accounting OfficerSSale−220$12.01−$2.64K−0.5%47.7K after
Mar 8, 2022 (view filing)Mar 71 dayTaylor Stacy LSVP and General CounselSSale−1.57K$12.01−$18.8K−2.0%75.2K after
Mar 8, 2022 (view filing)Mar 71 dayBenzeno SharonChief Business Development OffSSale−2.67K$12.01−$32.1K−2.5%102.6K after
Mar 8, 2022 (view filing)Mar 71 dayRubinstein JuliePresidentSSale−4.61K$12.01−$55.4K−2.0%226.5K after
Mar 8, 2022 (view filing)Mar 71 dayBaldo LanceChief Medical OfficerSSale−2.37K$12.01−$28.5K−10.4%20.5K after
Mar 9, 2022 (view filing)Mar 7-92 daysRobins Chad MCEO and ChairmanSSale−44.4K$11.80−$524.4K−2.3%1.92M after4 lots
Mar 10, 2022 (view filing)Mar 82 daysLo FrancisChief People OfficerSSale−3.58K$11.44−$41.0K−3.8%89.6K after
Mar 10, 2022 (view filing)Mar 82 daysBaldo LanceChief Medical OfficerSSale−3.35K$11.43−$38.3K−16.3%17.2K after
Mar 10, 2022 (view filing)Mar 82 daysTaylor Stacy LSVP and General CounselSSale−2.39K$11.44−$27.3K−3.2%72.9K after
Apr 8, 2022 (view filing)Apr 71 dayAdams R MarkChief Operating OfficerSSale−831$13.17−$10.9K−0.7%122.9K after
Jul 8, 2022 (view filing)Jul 7-81 dayAdams R MarkChief Operating OfficerSSale−3.13K$10.22−$31.9K−2.5%119.8K after2 lots
Aug 5, 2022 (view filing)Aug 5Same daySood NitinChief Commercial Officer, MRDSSale−17.5K$10.98−$192.6K−10.8%145.6K after
Oct 11, 2022 (view filing)Oct 7-104 daysAdams R MarkChief Operating OfficerSSale−3.13K$7.26−$22.7K−2.6%116.6K after2 lots
Nov 1, 2022 (view filing)Nov 1Same daySood NitinChief Commercial Officer, MRDSSale−31.1K$8.00−$248.5K−21.3%114.5K after
Nov 17, 2022 (view filing)Nov 161 dayPiskel KylePrincipal Accounting OfficerSSale−307$8.87−$2.72K−0.6%47.4K afterAmended
Jan 11, 2023 (view filing)Jan 9-102 daysAdams R MarkChief Operating OfficerSSale−3.13K$8.55−$26.7K−2.7%113.5K after2 lots
Mar 8, 2023 (view filing)Mar 62 daysRubinstein JuliePresidentSSale−22.7K$8.57−$194.3K−6.3%336.8K after
Mar 8, 2023 (view filing)Mar 6-72 daysSood NitinChief Commercial Officer, MRDSSale−16.5K$8.59−$141.5K−6.7%231.0K after2 lots
Mar 8, 2023 (view filing)Mar 62 daysBenzeno SharonChief Commercial Ofc Imm MedSSale−11.7K$8.57−$100.7K−5.0%223.8K after
Mar 8, 2023 (view filing)Mar 6-72 daysAdams R MarkChief Operating OfficerSSale−23.7K$8.59−$203.5K−11.7%178.5K after2 lots
Mar 8, 2023 (view filing)Mar 6-72 daysTaylor Stacy LSVP and General CounselSSale−18.9K$8.59−$162.2K−11.9%139.7K after2 lots
Mar 8, 2023 (view filing)Mar 62 daysLo FrancisChief People OfficerSSale−6.82K$8.57−$58.4K−3.9%168.5K after
Mar 8, 2023 (view filing)Mar 62 daysPiskel KylePrincipal Accounting OfficerSSale−3.53K$8.57−$30.2K−3.9%87.6K after2 lots