Scott Biller
CIK 1581956 · Chief Scientific Officer · last filed 2026-06-25
Scott Biller is a Chief Scientific Officer who has filed 84 SEC Form 4 insider transactions across 2 companies since 2014. The most recent filing, for FHTX, was dated Jun 25, 2026. Across all open-market trades the lifetime net is −$23.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $3.2M 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.
AGIO 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
38 SIDNEY STREET, 2ND FLOOR
CAMBRIDGE, MA 02139
Holdings By Company
Recent Filings
84 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-06-25 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2025-06-17 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2024-06-28 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2023-06-22 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2022-06-22 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2021-07-14 | FHTX | Grant (A) | — | $0 | EDGAR |
| 2019-06-13 | AGIO | Exer (M) | +7,218 | $16.9K | EDGAR |
| 2019-04-09 | AGIO | Mixed | — | -$83.9K | EDGAR |
| 2019-03-07 | AGIO | Mixed | — | -$87.2K | EDGAR |
| 2019-03-01 | AGIO | Mixed | — | -$449.1K | 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.