ADPT · Insider Trading

Adaptive Biotechnologies Corporation Common Stock

Full ADPT quote
Iron condor setupsExpected moveIV rank historyFibonacci levelsInsider trading

Every open-market purchase and sale reported by ADPT officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
0
code P
Sales
19
code S
Reporting Insiders
12
current holders
ADPT — Recent Form 4 Transactions (latest 2026-11-06)
FiledInsiderRole TypeSharesValue
2026-11-06 Julie Rubinstein President and COO MIXED — −$521.74K
2026-11-03 Julie Rubinstein President and COO MIXED — −$496.19K
2026-10-29 Julie Rubinstein President and COO MIXED — −$565.39K
2026-10-26 Julie Rubinstein President and COO MIXED — −$464.75K
2026-10-21 Julie Rubinstein President and COO MIXED — −$446.38K
2026-10-16 Julie Rubinstein President and COO MIXED — −$464.65K
2026-10-13 Julie Rubinstein President and COO MIXED — −$487.16K
2026-10-08 Susan Bobulsky Chief Commercial Officer, MRD Sell −6,444 −$193.32K
2026-10-08 Julie Rubinstein President and COO MIXED — −$515.52K
2026-10-05 Julie Rubinstein President and COO MIXED — −$581.62K
2026-10-05 Francis Lo Chief People Officer MIXED — −$576.14K
2026-09-18 Francis Lo Chief People Officer MIXED −9,846 −$2.23M
2026-09-17 Susan Bobulsky Chief Commercial Officer, MRD Sell −1,195 −$32.27K
2026-09-02 Katey Einterz Owen Director G −12,539 —
2026-08-28 Katey Einterz Owen Director Sell −9,615 −$249.99K
2026-08-20 Robert Hershberg Director MIXED −15,664 −$653.41K
2026-08-19 Peter M Neupert Director MIXED −109,690 −$3.04M
2026-08-19 Chad M Robins CEO and Chairman MIXED — −$10.95M
2026-08-12 Susan Bobulsky Chief Commercial Officer, MRD Sell −3,000 −$75.00K
2026-08-03 Susan Bobulsky Chief Commercial Officer, MRD Sell −1,299 −$31.18K
2026-07-23 Harlan S Robins Chief Scientific Officer MIXED −207,600 −$8.91M
2026-07-20 Susan Bobulsky Chief Commercial Officer, MRD Sell −5,000 −$115.00K
2026-07-17 Francis Lo Chief People Officer MIXED — −$1.45M
2026-07-07 Harlan S Robins Chief Scientific Officer Sell −386,240 −$8.50M
2026-07-06 Susan Bobulsky Chief Commercial Officer, MRD Sell −487 −$10.71K
2026-07-06 Francis Lo Chief People Officer MIXED −20,221 −$1.50M
2026-06-29 Susan Bobulsky Chief Commercial Officer, MRD Sell −5,000 −$102.50K
2026-06-29 Michelle Renee Griffin Director MIXED — −$644.80K
2026-06-17 Harlan S Robins Chief Scientific Officer Sell −106,160 −$1.85M
2026-06-15 Susan Bobulsky Chief Commercial Officer, MRD Sell −5,000 −$95.00K
2026-06-08 Susan Bobulsky Chief Commercial Officer, MRD Sell −11,000 −$198.00K
2026-06-08 Francis Lo Chief People Officer MIXED −20,220 −$522.27K
2026-05-20 Kyle Piskel Chief Financial Officer Sell −3,115 −$40.62K
2026-04-29 Julie Rubinstein President and COO MIXED −4,330 −$146.48K
2026-04-24 Julie Rubinstein President and COO MIXED −13,014 −$424.78K
2026-04-21 Julie Rubinstein President and COO MIXED −13,014 −$490.74K
2026-04-16 Julie Rubinstein President and COO MIXED −13,014 −$452.61K
2026-04-13 Julie Rubinstein President and COO MIXED −13,014 −$429.15K
2026-04-10 Francis Lo Chief People Officer MIXED −20,220 −$330.69K
2026-04-10 Harlan S Robins Chief Scientific Officer Sell −10,000 −$148.50K
2026-04-08 Chad M Robins CEO and Chairman Sell −120,595 −$1.77M
2026-04-08 Julie Rubinstein President and COO MIXED −13,014 −$525.18K
2026-04-02 Julie Rubinstein President and COO MIXED −8,676 −$339.64K
2026-03-26 Julie Rubinstein President and COO MIXED −13,014 −$481.15K
2026-03-23 Julie Rubinstein President and COO MIXED −13,014 −$461.99K
2026-03-18 Julie Rubinstein President and COO MIXED −13,014 −$472.92K
2026-03-13 Susan Bobulsky Chief Commercial Officer, MRD Sell −41,338 −$544.42K
2026-03-13 Francis Lo Chief People Officer Sell −30,593 −$430.75K
2026-03-13 Michelle Renee Griffin Director Sell −15,394 −$214.13K
2026-03-13 Kyle Piskel Chief Financial Officer Sell −18,672 −$245.91K
ADPT — Current Insider Holders
InsiderRole Shares HeldValue
Chad M Robins CEO and Chairman 2,683,043 $81.19M
Harlan S Robins Chief Scientific Officer 1,312,058 $39.70M
Susan Bobulsky Chief Commercial Officer, MRD 389,350 $11.78M
Julie Rubinstein President and COO 377,802 $11.43M
Sharon Benzeno Chief Commercial Ofc Imm Med 272,751 $8.25M
Kyle Piskel Chief Financial Officer 256,725 $7.77M
Peter M Neupert Director 255,315 $7.73M
Francis Lo Chief People Officer 242,065 $7.32M
Robert Hershberg Director 77,347 $2.34M
Michael J Pellini Director 69,690 $2.11M
Katey Einterz Owen Director 66,100 $2.00M
Michelle Renee Griffin Director 15,625 $472.81K
ADPT Insider Trading FAQ
Who are the insiders at ADPT?
12 officers, directors and 10%+ beneficial owners currently report holdings in ADPT via SEC Form 4.
Are ADPT insiders buying or selling?
Across the 50 most recent Form 4 filings for ADPT, 0 were open-market purchases (code P) and 19 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is ADPT insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent ADPT filing is dated 2026-11-06.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the ADPT quote page; the site-wide leaderboard is on the insider transactions hub.

More on ADPT
ADPT full quote Insider Transactions Hub (all symbols) ADPT iron condor setups ADPT expected move ADPT IV rank history ADPT Fibonacci levels

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