JOHN MARAGANORE
CIK 1180432 · Chief Executive Officer · last filed 2026-06-10
JOHN MARAGANORE is a Chief Executive Officer who has filed 120 SEC Form 4 insider transactions across 9 companies since 2007. The most recent filing, for RAPP, was dated Jun 10, 2026. Across all open-market trades the lifetime net is −$121.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $66.3M 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.
$66.26M
9
120
-$121.06M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| RAPP | Director | — | $38.40 | — | $0 | 2 | 2026-06-10 |
| BEAM | Director | — | $29.03 | — | $0 | 6 | 2026-06-05 |
| COAG | Director | 35,948 | — | — | $0 | 1 | 2026-05-04 |
| KYMR | Director | — | $86.20 | — | $0 | 4 | 2025-06-26 |
| PROK | Director | — | $1.64 | — | $0 | 1 | 2023-07-03 |
| AGIO | Director | 30,028 | $29.46 | $884.6K | -$1.80M | 18 | 2022-06-23 |
| ALNY | Chief Executive Officer | 231,115 | $282.85 | $65.37M | -$114.58M | 77 | 2021-12-23 |
| bluebird bio, Inc. (BLUE) Delisted | Director | 24,711 | $4.97 | $122.8K | -$4.68M | 9 | 2017-09-18 |
| Regulus Therapeutics Inc. (RGLS) Delisted | Director | 6,150,500 | $8.16 | $50.19M | $0 | 1 | 2012-10-11 |
Recent Filings
120 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-10 | RAPP | Grant (A) | — | $0 | EDGAR |
| 2026-06-05 | BEAM | Grant (A) | — | $0 | EDGAR |
| 2026-05-04 | COAG | Mixed | +35,948 | $0 | EDGAR |
| 2025-06-26 | KYMR | Grant (A) | — | $0 | EDGAR |
| 2025-06-18 | RAPP | Grant (A) | — | $0 | EDGAR |
| 2025-06-06 | BEAM | Grant (A) | — | $0 | EDGAR |
| 2024-06-20 | KYMR | Grant (A) | — | $0 | EDGAR |
| 2024-06-07 | BEAM | Grant (A) | — | $0 | EDGAR |
| 2023-07-03 | PROK | Grant (A) | — | $0 | EDGAR |
| 2023-06-20 | KYMR | Grant (A) | — | $0 | EDGAR |