13F Pro

SEC Form 4 reporting owner

Robins Chad M

Robins Chad M has filed 20 Form 4 transactions reported between November 26, 2025 and August 18, 2026, as CEO and Chairman of Adaptive Biotechnologies Corp.

Name as filed: ROBINS CHAD M

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$38.5M
16 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 18, 2026
transaction date

Roles and reported holdings

  • ADPTAdaptive Biotechnologies Corp
    Nov 26, 2025 – Aug 18, 2026

    CEO and Chairman

    Held directly2,180,518 sh as of Aug 18, 2026 · Form 4

    24 months: $38.5M sold

Transaction history

All 20 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 18, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct204$5K@ $25.14Form 4
Aug 18, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct278,472$6.8M@ $24.48Form 4
Aug 18, 2026ADPTCEO and ChairmanOption exerciseCode M · direct278,676$1.8M@ $6.55Form 4
Aug 17, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct2,525$65K@ $25.57Form 4
Aug 17, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct318,799$8.0M@ $25.08Form 4
Aug 17, 2026ADPTCEO and ChairmanOption exerciseCode M · direct321,324$2.1M@ $6.55Form 4
Apr 8, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct37,263$566K@ $15.19Form 4
Apr 6, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct83,332$1.2M@ $14.41Form 4
Mar 11, 2026ADPTCEO and ChairmanOpen-market saleCode S · directAlso reported by ROBINS HARLAN S329,600$4.3M@ $13.17Form 4
Mar 11, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct140,567$1.9M@ $13.17Form 4
Mar 6, 2026ADPTCEO and ChairmanGrant or awardCode A · direct709,220—Form 4
Mar 4, 2026ADPTCEO and ChairmanGrant or awardCode A · direct127,813—Form 4
Mar 3, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct2,380$38K@ $16.15Form 4
Mar 3, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct50,703$785K@ $15.49Form 4
Mar 2, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct289,024$4.6M@ $15.82Form 4
Feb 27, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct182,891$2.9M@ $15.99Form 4
Feb 2, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct124,998$2.3M@ $18.44Form 4
Jan 5, 2026ADPTCEO and ChairmanOpen-market saleCode S · direct124,998$1.9M@ $15.59Form 4
Dec 1, 2025ADPTCEO and ChairmanOpen-market saleCode S · direct124,998$2.4M@ $18.94Form 4
Nov 26, 2025ADPTCEO and ChairmanOpen-market saleCode S · direct35,736$703K@ $19.68Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.