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 | $222.54 | $3.51M | -$450.0K | 15 | 2026-05-22 |
| DUK | Director | 12,723 | $128.56 | $1.64M | $0 | 6 | 2026-05-11 |
| BIIB | Director | 31,002 | $257.89 | $8.00M | -$11.91M | 27 | 2025-06-18 |
| NTLA | Director | 12,701 | $12.11 | $153.8K | -$616.4K | 10 | 2022-06-16 |
| PEG | Executive VP & CFO | 157,385 | $75.13 | $11.82M | -$5.03M | 23 | 2015-08-06 |
| GILD | SVP, Chief Financial Officer | — | $169.94 | — | $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 | $148.43 | $1.89M | $0 | 1 | 2007-01-17 |
Recent Filings · Page 7 of 9
89 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2013-02-21 | PEG | Grant (A) | +15,300 | $480.6K | EDGAR |
| 2012-06-11 | BIIB | Grant (A) | +2,020 | $0 | EDGAR |
| 2012-05-23 | PEG | Buy (P) | +1,700 | $52.6K | EDGAR |
| 2012-02-22 | PEG | Grant (A) | +3,827 | $118.8K | EDGAR |
| 2012-02-22 | PEG | Grant (A) | +14,250 | $440.6K | EDGAR |
| 2011-08-10 | PEG | Buy (P) | +2,000 | $58.3K | EDGAR |
| 2011-06-02 | BIIB | Grant (A) | +2,900 | $0 | EDGAR |
| 2010-12-23 | PEG | Grant (A) | +13,100 | $409.2K | EDGAR |
| 2010-08-17 | BIIB | Buy (P) | +177 | $10.0K | EDGAR |
| 2010-08-03 | BIIB | Buy (P) | +183 | $10.0K | 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.