Caroline Dorsa
CIK 1181174 · Executive VP & CFO · last filed 2026-05-22
"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.
BIIB 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
225 BINNEY ST.
CAMBRIDGE, MA 02142
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ILMN | Director | 15,754 | $221.64 | $3.49M | -$450.0K | 15 | 2026-05-22 |
| DUK | Director | 12,723 | $128.96 | $1.64M | $0 | 6 | 2026-05-11 |
| BIIB | Director | 31,002 | $257.76 | $7.99M | -$11.91M | 27 | 2025-06-18 |
| NTLA | Director | 12,701 | $12.04 | $152.9K | -$616.4K | 10 | 2022-06-16 |
| PEG | Executive VP & CFO | 157,385 | $75.29 | $11.85M | -$5.03M | 23 | 2015-08-06 |
| GILD | SVP, Chief Financial Officer | — | $169.80 | — | $0 | 1 | 2007-12-17 |
| AV | SVP & Chief Financial Officer | 0 | $26.06 | $0 | $0 | 3 | 2007-10-29 |
| MRK | V.P. & Treasurer | 12,744 | $148.04 | $1.89M | $0 | 1 | 2007-01-17 |
Recent Filings · Page 4 of 9
89 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2019-06-20 | BIIB | Grant (A) | +1,155 | $0 | EDGAR |
| 2019-05-30 | ILMN | Grant (A) | +1,298 | $0 | EDGAR |
| 2019-05-28 | ILMN | Tax (F) | −589 | -$182.0K | EDGAR |
| 2019-05-22 | NTLA | Grant (A) | — | $0 | EDGAR |
| 2018-06-14 | BIIB | Grant (A) | +880 | $0 | EDGAR |
| 2018-05-24 | ILMN | Mixed | +551 | -$249.7K | EDGAR |
| 2018-05-21 | NTLA | Grant (A) | — | $0 | EDGAR |
| 2018-03-26 | NTLA | Grant (A) | +410 | $9.9K | EDGAR |
| 2017-06-09 | BIIB | Grant (A) | +1,055 | $0 | EDGAR |
| 2017-06-05 | NTLA | Grant (A) | +5,000 | $62.1K | 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.