Lawrence M Alleva
CIK 1553053 · last filed 2026-06-05
Lawrence M Alleva is a corporate insider who has filed 86 SEC Form 4 insider transactions across 7 companies since 2012. The most recent filing, for BFAM, was dated Jun 5, 2026. Across all open-market trades the lifetime net is −$590.7K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $31.1M 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.
$31.07M
7
86
-$590.7K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| BFAM | Director | 13,336 | $80.66 | $1.08M | -$807.4K | 21 | 2026-06-05 |
| Mersana Therapeutics, Inc. (MRSN) Delisted | Director | 0 | $29.08 | $0 | $39.8K | 25 | 2026-01-06 |
| Adaptimmune Therapeutics PLC (ADAP) Delisted | Director | 130,764 | $0.06 | $7.6K | $34.3K | 7 | 2024-07-01 |
| GRTX | Director | 52 | $17.60 | $915 | $97.7K | 10 | 2023-07-05 |
| ASND | Director | 117,864 | $254.44 | $29.99M | $39.7K | 5 | 2019-07-03 |
| TESARO, Inc. (TSRO) Delisted | Director | 0 | — | — | $5.2K | 13 | 2019-01-22 |
| SYNLOGIC, INC. (MIRN) Delisted | Director | 4,025 | — | — | $0 | 2 | 2016-09-06 |
Recent Filings
86 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-05 | BFAM | Grant (A) | +2,096 | $0 | EDGAR |
| 2026-01-06 | Mersana Therapeutics, Inc. (MRSN) Delisted | Mixed | −662 | $0 | EDGAR |
| 2025-06-13 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2025-06-05 | BFAM | Grant (A) | +976 | $0 | EDGAR |
| 2025-02-26 | — | Grant (A) | — | $0 | |
| 2025-01-03 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-10-03 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-07-02 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-07-01 | Adaptimmune Therapeutics PLC (ADAP) Delisted | Grant (A) | — | $0 | EDGAR |
| 2024-06-12 | Mersana Therapeutics, Inc. (MRSN) Delisted | Grant (A) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.