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HARLAN S ROBINS

CIK 1780851 · Chief Scientific Officer · last filed 2026-07-23

HARLAN S ROBINS is a Chief Scientific Officer who has filed 66 SEC Form 4 insider transactions across 1 company since 2019. The most recent filing, for ADPT, was dated Jul 23, 2026. Across all open-market trades the lifetime net is −$70.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $33.4M 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.

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Disclosed Exposure

$33.39M

Companies

1

Total Filings

66

Lifetime Open-Market Net

-$70.21M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
ADPT Chief Scientific Officer 1,312,058 $25.45 $33.39M -$70.21M 50 2026-07-23

Recent Filings

66 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-07-23 ADPT Mixed −207,600 -$8.91M EDGAR
2026-07-21 ADPT Notice (144) −492,400 -$11.12M EDGAR
2026-07-07 ADPT Sell (S) −386,240 -$8.50M EDGAR
2026-07-02 ADPT Notice (144) −386,240 -$8.18M EDGAR
2026-06-17 ADPT Sell (S) −106,160 -$1.85M EDGAR
2026-06-16 ADPT Notice (144) −6,160 -$106.1K EDGAR
2026-06-15 ADPT Notice (144) −100,000 -$1.75M EDGAR
2026-04-10 ADPT Sell (S) −10,000 -$148.5K EDGAR
2026-04-08 ADPT Notice (144) −10,000 -$148.4K EDGAR
2026-03-16 ADPT Notice (144) −470,266 -$6.83M EDGAR
Showing 1–10 of 66
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Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.