Timothy B Lowinger
CIK 1709775 · SVP, Chief Sci.&Tech. Officer · last filed 2026-01-06
Timothy B Lowinger is a SVP, Chief Sci.&Tech. Officer who has filed 37 SEC Form 4 insider transactions across 1 company since 2018. The most recent filing, for MRSN, was dated Jan 6, 2026. Across all open-market trades the lifetime net is −$2.0M, making them a net seller over the disclosed history.
"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.
$0
1
37
-$2.04M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| Mersana Therapeutics, Inc. (MRSN) Delisted | SVP, Chief Sci.&Tech. Officer | 0 | $29.08 | $0 | -$2.04M | 37 | 2026-01-06 |
Recent Filings
37 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | −10,466 | $0 | EDGAR |
| 2025-01-17 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +11,743 | -$4.7K | EDGAR |
| 2025-01-16 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +2,998 | -$1.1K | EDGAR |
| 2025-01-15 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +5,892 | -$2.3K | EDGAR |
| 2024-10-07 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +36,313 | -$27.2K | EDGAR |
| 2024-01-17 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +18,966 | -$28.2K | EDGAR |
| 2023-09-07 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2023-01-18 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +13,768 | -$35.8K | EDGAR |
| 2022-12-16 | Mersana Therapeutics, Inc. (MRSN) Delisted | Exer (M) | +35,361 | $52.7K | EDGAR |
| 2022-01-19 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | +10,468 | -$28.1K | EDGAR |