Horn Margaret A
Chief Operating Officer
Horn Margaret A has filed 8 SEC Form 4 filings (28 transaction rows) across 1 company, with disclosures dating back to 2025. 7 of those filings fall inside the rolling window. Most recent filing: Sep 18, 2026.
On the most recent filing, Horn Margaret A is listed as Chief Operating Officer at Revolution Medicines, Inc. Inside the rolling window, Horn Margaret A reported no open-market purchases and 8 open-market sales totaling $25.8M in RVMD. The largest disclosed transaction in the window is a sale of 60,400 RVMD shares on Jun 15, 2026, worth $9.7M.
Companies traded
Other insiders at RVMD
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$25.8M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| RVMD | Chief Operating Officer | Sale | 4,967 | $990K | Sep 18 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 60,400 | $9.7M | Jun 17 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 3,575 | $558K | Jun 17 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 29,600 | $4.7M | Jun 17 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 10,000 | $1.5M | Jun 15 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 4,583 | $456K | Mar 19 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 75,000 | $7.5M | Jan 9 | SEC ↗ | |
| RVMD | Chief Operating Officer | Sale | 4,847 | $372K | Dec 18 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Sep 16, 2025 | RVMD | Sale | $219K |
Frequently asked questions
How many SEC Form 4 filings has Horn Margaret A made?
Horn Margaret A has filed 8 SEC Form 4 filings (28 transaction rows) across 1 company since 2025.
Which companies does Horn Margaret A trade?
Horn Margaret A has filed SEC Form 4 disclosures for 1 company, including RVMD.
When was Horn Margaret A's most recent SEC Form 4 filing?
Horn Margaret A's most recent SEC Form 4 filing on Tracefour is dated Sep 18, 2026.
What is Horn Margaret A's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Horn Margaret A is listed as Chief Operating Officer.
What is Horn Margaret A's total buy and sell value in the current window?
Inside the rolling retention window, Horn Margaret A bought $0 and sold $25.8M based on SEC Form 4 filings.
What was Horn Margaret A's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 60,400 RVMD shares on 2026-06-15, worth $9.7M, per SEC Form 4 filings.