ROBINS HARLAN S
Officer · ADPT
As of 2026-09-17, ROBINS HARLAN S has 30 Form 4 transactions on record across 1 company — 21 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-21 | ADPT | Sale | 278,698 @ $21.72 | $6.1M | −21.4% of holding | 1,025,760 | Form 4 |
| 2026-07-21 | ADPT | Sale | 213,702 @ $22.12 | $4.7M | −20.8% of holding | 812,058 | Form 4 |
| 2026-07-02 | ADPT | Sale | 239,351 @ $21.74 | $5.2M | −17.0% of holding | 1,166,547 | Form 4 |
| 2026-07-02 | ADPT | Sale | 146,889 @ $22.45 | $3.3M | −12.6% of holding | 1,019,658 | Form 4 |
| 2026-06-16 | ADPT | Sale | 6,160 @ $18.01 | $111K | −0.4% of holding | 1,405,898 | Form 4 |
| 2026-06-15 | ADPT | Sale | 100,000 @ $17.37 | $1.7M | −6.6% of holding | 1,412,058 | Form 4 |
| 2026-04-08 | ADPT | Sale | 10,000 @ $14.85 | $149K | −0.7% of holding | 1,512,058 | Form 4 |
| 2026-03-11 | ADPT | Sale | 329,600 @ $13.17 | $4.3M | −17.8% of holding | 1,522,058 | Form 4 |
| 2026-03-11 | ADPT | Sale | 140,666 @ $13.17 | $1.9M | −7.1% of holding | 1,851,658 | Form 4 |
| 2026-03-03 | ADPT | Sale | 14,233 @ $16.52 | $235K | −1.2% of holding | 1,155,291 | Form 4 |
| 2026-03-02 | ADPT | Sale | 10,000 @ $15.72 | $157K | −0.8% of holding | 1,169,524 | Form 4 |
| 2026-02-03 | ADPT | Sale | 8,120 @ $19.00 | $154K | −0.7% of holding | 1,179,524 | Form 4 |
| 2026-02-02 | ADPT | Sale | 34,668 @ $18.60 | $645K | −2.8% of holding | 1,187,644 | Form 4 |
| 2026-01-06 | ADPT | Sale | 10,000 @ $16.44 | $164K | −0.8% of holding | 1,222,312 | Form 4 |
| 2025-12-04 | ADPT | Sale | 10,000 @ $16.61 | $166K | −0.8% of holding | 1,232,312 | Form 4 |
| 2025-12-03 | ADPT | Sale | 27,212 @ $18.61 | $506K | −2.1% of holding | 1,242,312 | Form 4 |
| 2025-11-10 | ADPT | Sale | 10,000 @ $14.82 | $148K | −0.8% of holding | 1,269,524 | Form 4 |
| 2025-05-01 | ADPT | Sale | 68,412 @ $7.35 | $503K | −5.1% of holding | 1,279,524 | Form 4 |
| 2025-03-24 | ADPT | Sale | 1,698 @ $9.00 | $15K | −0.1% of holding | 1,279,524 | Form 4 |
| 2025-03-05 | ADPT | Sale | 56,053 @ $6.99 | $392K | −4.2% of holding | 1,279,524 | Form 4 |
| 2025-03-05 | ADPT | Sale | 40,603 @ $6.98 | $283K | −3.0% of holding | 1,335,577 | Form 4 |
9 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-07-21 | ADPT | Option exercise | 284,800 | 1,304,458 | Form 4 |
| 2026-07-21 | ADPT | Option exercise | 284,800 | 0 | Form 4 |
| 2026-03-06 | ADPT | Award / grant | 709,220 | 1,992,324 | Form 4 |
| 2026-03-04 | ADPT | Award / grant | 127,813 | 1,283,104 | Form 4 |
| 2025-05-01 | ADPT | Option exercise | 68,412 | 1,347,936 | Form 4 |
| 2025-05-01 | ADPT | Option exercise | 68,412 | 0 | Form 4 |
| 2025-03-24 | ADPT | Option exercise | 1,698 | 1,281,222 | Form 4 |
| 2025-03-24 | ADPT | Option exercise | 1,698 | 68,412 | Form 4 |
| 2025-03-04 | ADPT | Award / grant | 355,000 | 1,376,180 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.