22 transactions on file (4 open-market purchases and 4 open-market sales).
4 open-market sales by PRPO insiders, between Jul 8, 2025 and May 21, 2026.
Discretionary.
Planned (10b5-1).
Not stated.
The 4 open-market purchases on file carry no plan label.
| Date | Insider | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-07-15 | Valauri Christina Rizopoulos Director Grant / award | Grant / award | +108 | $25.24 | +2.73K | 5,628 |
| 2026-07-15 | Cossman Jeffrey Director Grant / award | Grant / award | +416 | $25.24 | +10.5K | 16,549 |
| 2026-07-15 | Cohen David Seth Director Grant / award | Grant / award | +520 | $25.24 | +13.12K | 55,199 |
| 2026-05-21 | SANDBERG RICHARD A Director Open-market sale Discretionary | Open-market sale Discretionary | −900 | $25.02 | −22.52K | 3,000 |
| 2026-05-20 | SANDBERG RICHARD A Director Open-market sale Discretionary | Open-market sale Discretionary | −500 | $25.00 | −12.5K | 3,900 |
17 more transactions are on Measure
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| Insider | Role | On Sep 23, 2025 | Now | Change | Sold | Shape |
|---|---|---|---|---|---|---|
| SANDBERG RICHARD ADirector | Director | 5,000 | 3,000 | −40.00% | $100K$100K no plan | |
| Sabet Ahmed ZakiChief Operating Officer | Chief Operating Officer | 690 | 1,034 | +49.86% | - |
What each insider held after every open-market trade, over the last twelve months.
The assistant answers from what PRPO has actually filed: 17 annual reports filed with the SEC, 21 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.
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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.
Be told the next time a PRPO insider trades
Watch PRPO 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 PRPO 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: 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 PRPO's own history of insider activity.
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The table above says who traded. This says what PRPO 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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