John C Martin
CIK 1190578 · Executive Chairman · last filed 2021-03-05
John C Martin is an Executive Chairman who has filed 190 SEC Form 4 insider transactions across 4 companies since 2007. The most recent filing, for SRPT, was dated Mar 5, 2021. Across all open-market trades the lifetime net is −$1.00B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $564.9M across reported positions. 194 SEC filings were submitted jointly with GILEAD SCIENCES, INC.
"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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
GILD price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
FOSTER CITY, X1 94404
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SRPT | Director | 7,913 | $17.73 | $140.3K | $0 | 2 | 2021-03-05 |
| Kronos Bio, Inc. (KRON) Delisted | Director | 914,333 | $0.88 | $804.6K | $1.44M | 1 | 2020-10-16 |
| GILD | Director | 3,619,142 | $156.04 | $564.73M | -$1.00B | 163 | 2019-02-08 |
| GPRO | Director | 0 | $1.01 | $0 | $0 | 24 | 2012-08-02 |
Recent Filings
190 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2021-03-05 | SRPT | Grant (A) | +2,726 | $0 | EDGAR |
| 2020-10-16 | Kronos Bio, Inc. (KRON) Delisted | Mixed | +1,952,364 | $4.76M | EDGAR |
| 2020-02-28 | SRPT | Grant (A) | +5,187 | $0 | EDGAR |
| 2019-02-08 | GILD | Mixed | +9,463 | -$947.9K | EDGAR |
| 2018-12-04 | GILD | Mixed | −140,000 | -$2.38M | EDGAR |
| 2018-11-05 | GILD | Mixed | — | -$2.30M | EDGAR |
| 2018-10-03 | GILD | Mixed | — | -$2.72M | EDGAR |
| 2018-09-06 | GILD | Mixed | — | -$2.53M | EDGAR |
| 2018-08-03 | GILD | Mixed | — | -$2.71M | EDGAR |
| 2018-07-05 | GILD | Mixed | — | -$2.36M | 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.