36 transactions on file (0 open-market purchases and 1 open-market sale).
1 open-market sale by ACRS insiders, between Apr 23, 2026 and Apr 23, 2026.
Discretionary.
Planned (10b5-1).
Not stated.
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-01 | Kolbeck Roland Wilhelm Chief Scientific Officer Option exercise | Option exercise | +36,375 | - | - | 36,375 |
| 2026-08-01 | Kolbeck Roland Wilhelm Chief Scientific Officer Tax withholding | Tax withholding | −12,385 | $5.20 | −64.4K | 23,990 |
| 2026-06-05 | Mehra Anand Director Option exercise | Option exercise | +11,580 | - | - | 726,403 |
| 2026-06-05 | SCHIFF ANDREW N Director Option exercise | Option exercise | +11,580 | - | - | 25,540 |
| 2026-06-05 | Humphries William D. Director Option exercise | Option exercise | +11,580 | - | - | 45,105 |
31 more transactions are on Measure
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| Insider | Role | On Sep 23, 2025 | Now | Change | Sold | Shape |
|---|---|---|---|---|---|---|
| Leonard Braden Michael10% owner | 10% owner | 14,250,000 | 13,950,000 | −2.11% | $1.36M$1.36M no plan |
What each insider held after every open-market trade, over the last twelve months.
The assistant answers from what ACRS has actually filed: 13 annual reports filed with the SEC, 35 Form 4 filings from the last year and 3 funds that hold it. Every figure in a reply links to the filing it came from, so an answer can be checked rather than believed.
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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.
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Watch ACRS and every open-market Form 4 worth a row (a purchase, a senior officer's sale, anything at a million dollars) lands in the bell and a daily email, with the 10b5-1 word on it when the filing says so. Free.
See who bought, not who was handed shares
Every Form 4 ACRS insiders file, not just the latest handful, with vesting and tax withholding struck out so what's left reads as a decision.
Every filingMeasure
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Each stake priced at the quarter it was filed, and diffed against the quarter before: how big a bet it is for them, and by how much it moved.
Every position, sizedMeasure
Ask what a run of filings adds up to
Whether this is one decision or a pattern, and how it compares with ACRS's own history of insider activity.
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The table above says who traded. This says what ACRS did over the following 30, 90 and 180 days after each open-market purchase and sale, from this company’s own record rather than a study about companies in general, and with the number of transactions shown beside every average.
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