| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
President and CEO | EVP, Chief Commercial Officer | SVP, Chief Commercial Officer
2 companies
Alexander Cumbo is President and CEO at SLDB and has filed Form 4s across 2 companies. From July 2017 to February 2026, the filings on record show 0 open-market purchases and 11 sales. Alexander Cumbo's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $1.6M at current prices.
Historically, Alexander Cumbo's trades have earned a below-average insider score of 34/100 across 7 rated trades. Over a 12-month horizon, none of those trades were profitable, with an average 12-month return of -34.8%.
The biggest single holding is SLDB (~$1.5M) as President and CEO. The SLDB filings lean toward selling, a net 190,859 shares.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|
| Jul 20, 2017 | SRPT Sarepta Therapeutics, Inc. | SVP, Chief Commercial Officer | Sale+OE | 5,918 | $41.00 | $242,638.00 | -26.0% |