Margaret A Horn

COO · Revolution Medicines, Inc.

Rank #2,861 SEC EDGAR (United States) ↗ Files from United States

Details

Officer and board memberPharmaceuticals & BiotechnologyRVMDSEC CIK 0001294192

Computed from SEC EDGAR filings and closing prices — not copied from any wealth ranking. Dataset . How we calculate this.

Disclosed holdings
$33.1M
1-day change
▼ 0.41%
Positions on file
2
issuers disclosed in Forms 3/4/5 and Schedules 13D/G

Disclosed holdings over time 53 weekly points

What the 2 currently disclosed positions would have been worth at each week’s closing price. A rising line means the shares got more valuable, not that this person bought more.

How the line is built

Share counts are as last reported to the SEC and held constant; only prices move.

2025-09-05$6.4M – $33.1M2026-09-04

Insider activity Jun 4, 2024 – Mar 17, 2026

Margaret A Horn is recorded in filings to the U.S. SEC via EDGAR as officer and board member, and reported 20 transactions between Jun 4, 2024 and Mar 17, 2026. The buy and sell totals below count only codes P, S.

Why the other codes are excluded

Share awards (A), shares withheld to pay tax (F), option exercises (M) and gifts (G) also appear in the table, but they are consequences of a pay package or a private transfer, not a decision to buy or sell on the open market. Counting them would turn this into a compensation ranking.

Open-market buys (code P)
None
0 purchases on file
Open-market sales (code S)
$11.92M
12 sales on file priced rows only
All reported transactions
20
every code, including awards and exercises
Pattern
Net seller in the final 12 months of the window
last 12 months of the window

Events from filings

Detected automatically in the filings linked below. Each headline is built from the numbers in those filings, not written by a model. Newest first; events older than 45 days stay listed and are marked as older.

Margaret A Horn sold 29,600 Revolution Medicines, Inc. (RVMD) shares for $4,739,552 on Jun 17, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Margaret A Horn sold 29,600 Revolution Medicines, Inc. (RVMD) shares for $4,739,552 on Jun 17, 2026
Date Insider Transaction Shares Price Value Filing
Jun 17, 2026 Margaret A Horn S Open-market sale 29,600 held after: 154,647 $160.12 $4,739,552 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Margaret A Horn sold 60,400 Revolution Medicines, Inc. (RVMD) shares for $9,674,268 on Jun 15, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Margaret A Horn sold 60,400 Revolution Medicines, Inc. (RVMD) shares for $9,674,268 on Jun 15, 2026
Date Insider Transaction Shares Price Value Filing
Jun 15, 2026 Margaret A Horn S Open-market sale 60,400 held after: 158,222 $160.17 $9,674,268 SEC filing ↗

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Margaret A Horn sold 73,300 Revolution Medicines, Inc. (RVMD) shares for $7,367,227 on Jan 7, 2026

Large trade for this person

Flagged because this trade was large compared with this person’s own earlier open-market trades in the same currency — not because it is large in absolute terms. A trade that is routine for one insider can be flagged for another.

Margaret A Horn sold 73,300 Revolution Medicines, Inc. (RVMD) shares for $7,367,227 on Jan 7, 2026
Date Insider Transaction Shares Price Value Filing
Jan 7, 2026 Margaret A Horn S Open-market sale 53,096 held after: 162,957 $100.02 $5,310,662 SEC filing ↗
Jan 7, 2026 Margaret A Horn S Open-market sale 20,204 held after: 142,753 $101.79 $2,056,565 SEC filing ↗

Total of the rows above: $7,367,227, in the currency the filings report.

Source: SEC EDGAR (United States); every row links to where it was published. Event computed Sep 14, 2026.

Reported transactions

Price 0.00 is a real reported figure on gifts (G) and share awards (A) — not a missing number. The 25 most recent rows are grouped into 12 lines by date, company and transaction type — open a line to see every lot with its own source link. We hold 37 on file in total. See the full history on EDGAR ↗

How to read this list

Every row is one line of one Form 4 or Form 5, with the filing it came from. Where the record carries no price at all we leave the cell empty instead of guessing one.

The shares and money on a grouped line add up only the lots listed inside that line, and only when every one of them carries the figure. Where a group mixes more than one reporting currency we leave the money blank rather than convert — no source publishes the rate that conversion would need.

  1. Revolution Medicines, Inc. RVMD S Open-market sale 29,600 shares $4.74M at $160.12 SEC filing ↗
  2. Revolution Medicines, Inc. RVMD M Option exercise or conversion × 3not a buy/sell decision 29,600 shares $803.5K
    The 3 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    25,725 $26.50 $681.7K SEC filing ↗
    3,302 $29.80 $98.4K SEC filing ↗
    573 $40.74 $23.3K SEC filing ↗
  3. Revolution Medicines, Inc. RVMD S Open-market sale 60,400 shares $9.67M at $160.17 SEC filing ↗
  4. Revolution Medicines, Inc. RVMD M Option exercise or conversion × 2not a buy/sell decision 60,400 shares $1.97M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    44,854 $29.80 $1.34M SEC filing ↗
    15,546 $40.74 $633.3K SEC filing ↗
  5. Revolution Medicines, Inc. RVMD S Open-market sale × 7 10,000 shares $1.48M
    The 7 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    200 $150.17 $30.0K SEC filing ↗
    4,600 $149.64 $688.3K SEC filing ↗
    1,800 $148.72 $267.7K SEC filing ↗
    500 $147.27 $73.6K SEC filing ↗
    700 $146.04 $102.2K SEC filing ↗
    885 $145.15 $128.5K SEC filing ↗
    1,315 $144.28 $189.7K SEC filing ↗
  6. Revolution Medicines, Inc. RVMD M Option exercise or conversion × 2not a buy/sell decision 10,000 shares $409.3K
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    8,906 $40.74 $362.8K SEC filing ↗
    1,094 $42.45 $46.4K SEC filing ↗
  7. Revolution Medicines, Inc. RVMD S Open-market sale 4,583 shares $455.9K at $99.48 SEC filing ↗
  8. Revolution Medicines, Inc. RVMD A Grant or awardnot a buy/sell decisionreported at zero 21,100 shares $0 at $0.00 SEC filing ↗
  9. Revolution Medicines, Inc. RVMD M Option exercise or conversion × 2not a buy/sell decision 75,000 shares $2.89M
    The 2 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    51,406 $42.45 $2.18M SEC filing ↗
    23,594 $29.80 $703.1K SEC filing ↗
  10. Revolution Medicines, Inc. RVMD S Open-market sale × 3 75,000 shares $7.54M
    The 3 lots that make up this line, each with the source behind it.
    Shares Price Value Filing
    1,700 $102.90 $174.9K SEC filing ↗
    53,096 $100.02 $5.31M SEC filing ↗
    20,204 $101.79 $2.06M SEC filing ↗
  11. Revolution Medicines, Inc. RVMD S Open-market sale 4,847 shares $372.3K at $76.82 SEC filing ↗
  12. Revolution Medicines, Inc. RVMD S Open-market sale 4,775 shares $218.8K at $45.82 SEC filing ↗

Disclosed holdings

Shares is the amount on the form; value is that amount times the closing price shown. Rows with no closing price are left blank, so they may add up to less than the headline figure.

What is not counted here

Each row is one filing you can open. Private companies, real estate, bonds and crypto are not in SEC insider filings and are therefore not counted here.

Equity positions disclosed to the SEC, with the source filing behind each row.
Issuer Ticker Security Shares Close Value Form Reported Filing
Revolution Medicines, Inc. RVMD Common Stock 157,570 $210.02 $33.1M 4 EDGAR ↗
SANGAMO THERAPEUTICS, INC SGMOQ Common Stock 82,650 $0.16 $13.2K 4 EDGAR ↗

Other insiders at the same companies

People who also file with the SEC at a company where Margaret A Horn reports shares.

Sharing a filing does not mean they work together day to day — it means both names appear on the same issuer’s insider record.

Sources

The filings linked in the tables above are the sources for every figure on this page.

Think a number here is wrong? Open the linked filing and compare — how to report it.

Profile record last refreshed Sep 8, 2026.