Anna Protopapas
CIK 1347582 · President & CEO · last filed 2026-01-06
Anna Protopapas is a President & CEO who has filed 61 SEC Form 4 insider transactions across 6 companies since 2007. The most recent filing, for MRSN, was dated Jan 6, 2026. Across all open-market trades the lifetime net is −$2.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $634.2K across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$634.2K
6
61
-$2.10M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| Mersana Therapeutics, Inc. (MRSN) Delisted | Director | 0 | $29.08 | $0 | -$708.9K | 18 | 2026-01-06 |
| NUVL | Director | 5,146 | $123.25 | $634.2K | -$378.4K | 6 | 2025-06-20 |
| Dicerna Pharmaceuticals Inc (DRNA) Delisted | Director | 3,333 | $38.22 | $127.4K | $0 | 4 | 2021-06-07 |
| Bioverativ Inc. (BIVV) Delisted | Director | 0 | — | — | $0 | 4 | 2018-03-08 |
| ARIAD PHARMACEUTICALS INC (ARIA) Delisted | Director | 0 | — | — | $0 | 4 | 2017-02-16 |
| MILLENNIUM PHARMACEUTICALS INC (MLNM) Delisted | Senior Vice President | 5,848 | — | — | -$1.01M | 25 | 2008-05-15 |
Recent Filings
61 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | −19,220 | $0 | EDGAR |
| 2025-06-20 | NUVL | Grant (A) | +2,647 | $0 | EDGAR |
| 2025-06-13 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2025-01-17 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +12,613 | -$5.0K | EDGAR |
| 2025-01-16 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +10,559 | -$3.9K | EDGAR |
| 2025-01-15 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +19,716 | -$7.6K | EDGAR |
| 2024-06-14 | NUVL | Grant (A) | +2,499 | $0 | EDGAR |
| 2024-06-12 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-01-17 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +57,559 | -$79.7K | EDGAR |
| 2023-12-20 | NUVL | Mixed | — | -$331.6K | EDGAR |