Mary B Cranston
CIK 1104268 · last filed 2026-08-11
Mary B Cranston is a corporate insider who has filed 122 SEC Form 4 insider transactions across 10 companies since 2007. The most recent filing shows the insider bought $95.0K of CC on Aug 11, 2026. Across all open-market trades the lifetime net is −$9.5M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.9M 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.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
MYOK 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
1007 MARKET ST
WILMINGTON, DE 19801
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CC | Director | 113,140 | $13.80 | $1.56M | $145.0K | 15 | 2026-08-11 |
| TPG | Director | 34,958 | $49.22 | $1.72M | $0 | 6 | 2026-07-17 |
| V | Director | 11,206 | $420.80 | $4.72M | -$3.31M | 28 | 2023-01-26 |
| McAfee Corp. (MCFE) Delisted | Director | 69,003 | $25.99 | $1.79M | $0 | 4 | 2021-08-31 |
| MyoKardia, Inc. (MYOK) Delisted | Director | 23,629 | — | — | -$4.25M | 10 | 2020-10-30 |
| Mellanox Technologies, Ltd. (MLNX) Delisted | 10%+ Owner | 223 | — | — | $15.1K | 1 | 2018-01-24 |
| JUNIPER NETWORKS INC (JNPR) Delisted | Director | 41,197 | $39.95 | $1.65M | -$54.6K | 10 | 2015-05-20 |
| INTERNATIONAL RECTIFIER CORP /DE/ (IRF) Delisted | Director | 0 | — | — | -$1.06M | 18 | 2015-01-13 |
| GRAFTECH INTERNATIONAL LTD (GTI) Delisted | Director | 949 | $2.70 | $2.6K | -$922.4K | 22 | 2014-01-17 |
| EXPO | Director | 10,844 | $85.37 | $925.8K | -$99.5K | 6 | 2013-06-17 |
Recent Filings
122 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-11 | CC | Buy (P) | +6,000 | $95.0K | EDGAR |
| 2026-07-17 | TPG | Grant (A) | +4,181 | $0 | EDGAR |
| 2026-05-08 | CC | Grant (A) | +7,182 | $0 | EDGAR |
| 2025-07-17 | TPG | Grant (A) | +2,762 | $0 | EDGAR |
| 2025-04-24 | CC | Grant (A) | +14,096 | $0 | EDGAR |
| 2024-08-07 | CC | Grant (A) | +8,547 | $0 | EDGAR |
| 2024-07-17 | TPG | Grant (A) | +3,592 | $0 | EDGAR |
| 2023-07-18 | TPG | Grant (A) | +5,111 | $0 | EDGAR |
| 2023-04-28 | CC | Grant (A) | +5,858 | $0 | EDGAR |
| 2023-01-26 | V | Grant (A) | +1,050 | $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.