Jonathan Biller
CIK 1744749 · EVP and Chief Legal Officer · last filed 2026-02-26
Jonathan Biller is an EVP and Chief Legal Officer who has filed 45 SEC Form 4 insider transactions across 3 companies since 2018. The most recent filing, for VRTX, was dated May 6, 2026. Across all open-market trades the lifetime net is −$7.8M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.2M across reported positions. 31 SEC filings were submitted jointly with VERTEX PHARMACEUTICALS INC / MA.
"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.
VRTX 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
50 NORTHERN AVENUE
BOSTON, MA 02210
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| VRTX | EVP and Chief Legal Officer | 14,604 | $510.08 | $7.45M | -$7.81M | 17 | 2026-02-26 |
| AGIO | Chief Financial Officer | 22,953 | $31.81 | $730.1K | $0 | 8 | 2022-03-03 |
| CELGENE CORP /DE/ (CELGZ) Delisted | EVP AND GENERAL COUNSEL | 26,652 | — | — | $0 | 7 | 2019-11-22 |
Recent Filings
45 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-06 | VRTX | Notice (144) | −5,193 | -$2.20M | EDGAR |
| 2026-02-26 | VRTX | Mixed | −2,089 | -$1.01M | EDGAR |
| 2026-02-25 | VRTX | Notice (144) | −945 | -$459.6K | EDGAR |
| 2026-02-19 | VRTX | Mixed | −1,090 | -$2.53M | EDGAR |
| 2026-02-18 | VRTX | Notice (144) | −1,244 | -$589.3K | EDGAR |
| 2026-02-18 | VRTX | Mixed | −3,981 | -$1.95M | EDGAR |
| 2026-02-17 | VRTX | Notice (144) | −2,476 | -$1.21M | EDGAR |
| 2026-02-13 | VRTX | Notice (144) | −988 | -$493.0K | EDGAR |
| 2026-02-12 | VRTX | Mixed | −3,555 | -$1.65M | EDGAR |
| 2026-02-11 | VRTX | Notice (144) | −1,925 | -$886.3K | 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.