About this page
Insider trades reported on SEC Form 4: when the people who run a company buy or sell its shares with their own money.
How to read it
- Form 4
- The form a company insider (officer, director or owner of more than 10%) must file with the SEC within two business days of buying or selling the company's shares.
- Buy (P) and Sell (S)
- Open-market purchases and sales. Gifts, option exercises and automatic tax withholding are left out because they say little about what the insider thinks.
- Value
- Shares times price, as reported on the filing.
- 10b5-1
- A trade made under a plan set up in advance. Planned sales are common and usually say less than an unplanned purchase.
- Late filing
- A Form 4 filed more than two business days after the trade.
- Vs. S&P 500
- How the stock did after the trade minus how the overall market did in the same weeks.
A real example
In January 2016, when bank stocks were falling, JPMorgan Chase CEO Jamie Dimon bought 500,000 JPMorgan shares with his own money, worth about $26 million. His Form 4 made the purchase public within days, and investors read it as a strong sign of confidence.
Explain it like I'm 13
If the coach of a team bets his own allowance that his team will win, that tells you something. A Form 4 is the note a company boss must hand in whenever he buys or sells his own company's shares, so everyone can see it.
Data from public SEC filings and congressional reports. Information, not investment advice. Check every number against the filing linked on the page.
REGENERON PHARMACEUTICALS, INC. (REGN): Insider Trades and Fund Holdings
In the past 12 months, REGENERON PHARMACEUTICALS, INC. insiders reported no open-market purchases and 7 sales worth $6.64M; 7 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144), Congress trades and fund moves in the past year, newest first.
- Oct 14, 2026Insider saleCo-Chief Scientific Officer Andrew J. Murphy sold $3.2 million under a 10b5-1 plan (8 days after: signed a material agreement)
- Oct 14, 2026Planned saleMURPHY ANDREW J (officer) filed notice to sell about $3.2 million around Oct 14, 2026
- Oct 6, 2026NewsCompany reported: Signed a material agreement; Quarterly or annual results
- Sep 30, 2026NewsCompany reported: Executive or director change
- Sep 3, 2026Insider saleEVP Marion McCourt sold $969,708 under a 10b5-1 plan
- Sep 3, 2026Planned saleMcCourt Marion (officer) filed notice to sell about $969,267 around Sep 3, 2026
- Sep 2, 2026Insider saleEVP Marion McCourt sold $1 million under a 10b5-1 plan
- Sep 2, 2026Insider saleDirector Kathryn Guarini sold $340,000 under a 10b5-1 plan
- Sep 2, 2026Planned saleMcCourt Marion (officer) filed notice to sell about $1 million around Sep 2, 2026
- Sep 2, 2026Planned saleGuarini Kathryn (director) filed notice to sell about $340,000 around Sep 2, 2026
- Aug 10, 2026Insider saleDirector Huda Y. Zoghbi sold $640,000 under a 10b5-1 plan
- Aug 10, 2026Insider saleDirector Kathryn Guarini sold $320,000 under a 10b5-1 plan
- Aug 10, 2026Planned saleZoghbi Huda Y (director) filed notice to sell about $640,000 around Aug 10, 2026
- Aug 10, 2026Planned saleGuarini Kathryn (board member) filed notice to sell about $320,000 around Aug 10, 2026
- Jul 30, 2026NewsCompany reported: Quarterly or annual results
- Jul 2, 2026Insider saleDirector Arthur F. Ryan sold $130,030 under a 10b5-1 plan
- Jun 30, 2026FundBridgewater Associates added 126% in Q2 2026 (13F filed Aug 14, 2026)
- Jun 30, 2026FundRenaissance Technologies added 122% in Q2 2026 (13F filed Aug 13, 2026)
- May 15, 2026CongressRep. Gilbert Ray Cisneros, Jr. sell $1K–$15K
- Feb 12, 2026CongressRep. Julia Letlow buy $1K–$15K
- Nov 18, 2025CongressRep. Gilbert Ray Cisneros, Jr. buy $1K–$15K
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 15, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 15 | Andrew J. MurphyCo-Chief Scientific Officer | ▼ SELL10b5-1 | $3.20M |
| Sep 3 | Marion McCourtEVP | ▼ SELL10b5-1 | $1.03M |
| Sep 3 | Marion McCourtEVP | ▼ SELL10b5-1 | $970K |
| Sep 3 | Kathryn GuariniDirector | ▼ SELL10b5-1 | $340K |
| Aug 12 | Huda Y. ZoghbiDirector | ▼ SELL10b5-1 | $640K |
| Aug 12 | Kathryn GuariniDirector | ▼ SELL10b5-1 | $320K |
| Jul 7 | Arthur F. RyanDirector | ▼ SELL10b5-1 | $130K |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Andrew J. Murphy | Co-Chief Scientific Officer | 0 | $0 | 1 | $3.20M |
| Marion McCourt | EVP | 0 | $0 | 2 | $2.00M |
| Kathryn Guarini | Director | 0 | $0 | 2 | $660K |
| Huda Y. Zoghbi | Director | 0 | $0 | 1 | $640K |
| Arthur F. Ryan | Director | 0 | $0 | 1 | $130K |
Trades by members of Congress
Reported under the STOCK Act. Amounts are ranges from the form. All Congress trades →
| Filed | Member | Type | Amount |
|---|---|---|---|
| Jun 8 | ▼ SELL | $1K–$15K | |
| Mar 12 |  Rep. Julia LetlowR-LA-5 | ▲ BUY | $1K–$15K |
| Dec 15 | ▲ BUY | $1K–$15K |
Buybacks and executive pay
REGENERON PHARMACEUTICALS, INC. spent $3.44 billion buying back its own shares in 2025.
| Year | CEO pay reported | CEO pay "actually paid" | Value of $100 invested |
|---|---|---|---|
| 2025 | $7.28M | $39.0M | n/a |
| 2024 | $6.82M | −$37.7M | n/a |
| 2023 | $8.18M | $141.1M | n/a |
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
A All 7 insider trades reported on time. How it is graded
Tracked funds that report REGN
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 148,222 | $92.4M | ▲ +121.9% |
| Bridgewater Associates | 51,333 | $32.0M | ▲ +125.9% |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →