19 transactions on file (0 open-market purchases and 7 open-market sales).
7 open-market sales by SEER insiders, between Nov 19, 2025 and Aug 18, 2026.
Discretionary. The box was on the form and was not ticked.
Planned (10b5-1). The filer ticked the Form 4's 10b5-1 box.
Not stated. The filing does not say.
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-18 | Horn David R. PRESIDENT & CFO Open-market saleDiscretionary | Open-market sale Discretionary | −7,309 | $2.03 | −14.81K | 486,650 |
| 2026-07-28 | Roelofs Nicolas H PHD Director Grant / award | Grant / award | +16,500 | $0.00 | +0 | 91,496 |
| 2026-07-28 | Ro Isaac Director Grant / award | Grant / award | +12,375 | $0.00 | +0 | 53,375 |
| 2026-07-28 | Nishar Dipchand Director Grant / award | Grant / award | +16,500 | $0.00 | +0 | 75,544 |
| 2026-07-28 | MCGUIRE TERRANCE Director Grant / award | Grant / award | +16,500 | $0.00 | +0 | 128,566 |
14 more transactions are on Measure
| Insider | Role | On Sep 13, 2025 | Now | Change | Sold | Shape |
|---|---|---|---|---|---|---|
| Nishar DipchandDirector | Director | 69,704 | 59,044 | −15.29% | $23.27K$23.27K on a plan | |
| Horn David R.PRESIDENT & CFO | PRESIDENT & CFO | 443,599 | 486,650 | +9.70% | $56.01K$56.01K no plan | |
| Farokhzad OmidCEO AND CHAIR, Director | CEO AND CHAIR, Director | 1,272,068 | 3,349,064 | +163.28% | $115.35K$115.35K no plan |
What each insider held after every open-market trade, over the last twelve months.
The assistant answers from what SEER has actually filed: 6 annual reports filed with the SEC, 19 Form 4 filings from the last year and 1 fund that holds it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.
Pressing one answers it here, from SEER's filings and figures. One a day without an account; a free account has its own, and no card.
See every Form 4 SEER insiders have filed, not the latest few.
Ten seconds, no card, and nothing to cancel.
Source
From SEC Form 4 filings, filed within two business days of a transaction.
Past transactions say nothing about future ones, and none of this is investment advice.
See who bought, not who was handed shares
Every Form 4 SEER insiders file, not just the latest handful, with vesting and tax withholding struck out so what's left reads as a decision.
Every filingMeasure
Follow the investors who hold it
Each stake priced at the quarter it was filed, and diffed against the quarter before: who added, who trimmed, who left.
Every position they holdMeasure
Ask what a run of filings adds up to
Whether this is one decision or a pattern, and how it compares with SEER's own history of insider activity.
Free, no card, and it does not expire.