Susanna Gatti High
CIK 1691005 · Chief Operating Officer · last filed 2024-09-19
Susanna Gatti High is a Chief Operating Officer who has filed 48 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing, for DYN, was dated Dec 11, 2024. Across all open-market trades the lifetime net is −$13.6M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.2M across reported positions. 10 SEC filings were submitted jointly with bluebird bio, 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.
DYN 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
BELMONT, MA 02141
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| DYN | Chief Operating Officer | 136,272 | $16.07 | $2.19M | -$8.47M | 26 | 2024-09-19 |
| bluebird bio, Inc. (BLUE) Delisted | Chief Operating Officer | 688 | $4.97 | $3.4K | -$5.12M | 9 | 2018-12-21 |
Recent Filings
48 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2024-12-11 | DYN | Notice (144) | −5,270 | -$149.3K | EDGAR |
| 2024-11-18 | DYN | Notice (144) | −2,892 | -$82.1K | EDGAR |
| 2024-09-19 | DYN | Sell (S) | −8,976 | -$308.9K | EDGAR |
| 2024-09-18 | DYN | Notice (144) | −8,967 | -$308.5K | EDGAR |
| 2024-09-11 | DYN | Notice (144) | −5,270 | -$170.9K | EDGAR |
| 2024-09-11 | DYN | Sell (S) | −5,270 | -$168.1K | EDGAR |
| 2024-08-20 | DYN | Sell (S) | −2,910 | -$131.3K | EDGAR |
| 2024-08-19 | DYN | Notice (144) | −2,910 | -$131.3K | EDGAR |
| 2024-07-03 | DYN | Mixed | — | -$1.18M | EDGAR |
| 2024-06-24 | DYN | Mixed | — | -$1.18M | 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.