Transaction · 0001174475-26-000004

Brown Michael S

BROWN MICHAEL S, DIR, reported an open-market or private sale at REGENERON PHARMACEUTICALS, INC. involving 1929.000000 shares for an estimated $1687875.00. Reported holdings after the transaction were 1380.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SDIR
REGNREGENERON PHARMACEUTICALS, INC.
Trade date
Oct 30, 2026
Filing date
Nov 03, 2026
View on SEC Insider profile
Disclosed value-$1.68MShares × reported price
Shares traded1.92k$875.00 per share
Holdings after1.38kDirect
% of reported position traded58.3%This security and ownership context
How reported position traded is calculated

Shares sold ÷ (holdings after + shares sold). Estimated position before: 3,309 shares.

Row-level estimate for this security and ownership context, not the insider’s complete portfolio. Joint ownership, other transactions in the filing, amendments and footnotes can affect interpretation.

REGN price since this filing

Daily closing prices, with the filing date and available return windows
REGN · Daily closing priceLoading daily prices…
Filing dateReturn windows appear as prices become available.
Pre-filing1mo ago -21.1%1w ago -16.3%1d ago -14.8%
Returns since7d30d90d180d1y

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001174475-26-000004
Common Stock
Transaction date
Oct 30, 2026
Filed Nov 03, 2026, 09:05 PM · 4d delay
Shares
1,929 sh
$875.00 per share
Estimated value
-$1.68M
Computed from shares × price
Holdings after
1,380 sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $100kLarge $1.00M
Cluster Selling Direct Ownership Large Holdings Reduction Large Sale 10b5-1 Detected
Filing-only score

-4 points

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

How this score is calculated
  • direct_ownership+6 points

    direct_or_indirect_ownership = D

    Direct ownership reports the insider's personal stake.
  • tenb5_1_detected-10 points

    is_10b5_1 = true

    Stored filing content includes detected 10b5-1 language.
Read the scoring methodology

Signed filing-only points, not a probability or expected return. Version v1.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

No officer title

Officer NoDirector Yes10% NoOther No
Footnotes & amended
  1. F1

    Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c) adopted on February 25, 2026.

  2. F2

    These shares are held in a trust for the benefit of the reporting person's immediate family members. The reporting person's spouse is trustee of the trust. The reporting person disclaims beneficial ow…

  3. F3

    On the date of the Company's first annual meeting of shareholders following the date of grant, a portion of these stock options equal to the portion of one year that had passed from the date of grant…

Original filing · 0001174475-26-000004
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