Why Is Regeneron Pharmaceuticals, Inc. (REGN) Up 13% Today?
Biotech's biggest mover today
Regeneron Pharmaceuticals, Inc. is the biggest Biotech gainer on the board today. What follows is what can be sourced about why — and, where nothing can be, that is said plainly rather than filled in.
The move
REGN trades at $927.89, up +13.3% on the session, with a market capitalisation of $95.53 billion.
Volume is 4.0 times the 30-day average, which is the part of a move that tells you whether anyone turned up for it.
Against its 52-week range of $591.52 to $935.34, today's price sits 98% of the way up it.
What can be sourced
The record shows 4 analyst actions in the last fortnight, the most recent from Carter Gould at a $980.00 target on November 2nd, 2026.
None of that is proof of causation. A filing or a target change that lands near a move is context, and the market routinely moves on neither.
What it does do is separate a move with something behind it from one with nothing.
| Metric | Value | Context |
|---|---|---|
| Change today | +13.3% | Biotech average -2.5% |
| Volume | 2,851,725 | 4.0x the 30-day average |
| Market cap | $95.53 billion | Biotechnology |
| Range | $591.52 – $935.34 | 52 weeks |
What insiders have been doing
10 open-market insider transactions are on file for the last 90 days.
Insider activity before a move is the one piece of context that carries money behind it rather than an opinion.
It is also disclosed late, so proximity to today's move should not be read as foreknowledge.
- October 14th, 2026sellMURPHY ANDREW J · Other$41,941Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$19,094Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$56,288Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$20,557Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$4,523Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$26,457Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$12,123Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$18,196Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$10,639Form 4
- October 14th, 2026sellMURPHY ANDREW J · Other$167,404Form 4
| Metric | Value | Context |
|---|---|---|
| Change today | +13.3% | Biotech average -2.5% |
| Volume | 2,851,725 | 4.0x the 30-day average |
| Market cap | $95.53 billion | Biotechnology |
| Range | $591.52 – $935.34 | 52 weeks |
The bottom line
A move with something on the record behind it. Whether it holds is a different question. Not investment advice. Summarized from public SEC Form 4 and congressional disclosure data and analyst ratings data.