Transaction · 0001193125-26-377001

Morris Arlene

Morris Arlene, DIR, reported a transaction classified as exercise at Cogent Biosciences, Inc. involving 41927.000000 shares for an estimated $0.00. Reported holdings after the transaction were 2773.000000 shares. The stored filing text includes a detected 10b5-1 reference.

exerciseSEC transaction code MDIR
COGTCogent Biosciences, Inc.
Filing timeAug 31
Trade dateAug 27, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$36.74
Pre-filing
1mo ago +10.7%1w ago -3.9%1d ago +0.0%
Returns since
7d +0.0%30d +0.0%90d +0.0%180d +0.0%1y +0.0%

COGT price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
COGT since 2026-08-31Filed 3 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Derivative
Type
exercise
Code M
Identifier
0001193125-26-377001
Stock Option (Right to Buy)
Transaction date
Aug 27, 2026
Filed Aug 31, 2026, 09:01 PM · 4d delay
Shares
41.9k sh
$0 per share
Estimated value
$0
Computed from shares × price
Holdings after
2.77k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Derivative Transaction Direct Ownership Large Holdings Reduction 10b5-1 Detected
-20score
Filing-only score

-20

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

Low filing signal

This filing has a meaningfully negative filing-only score. It is likely less useful as a positive insider-activity signal.

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

    Transactions effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2026.

  2. F2

    The price reported represents the weighted average sale price per share. The shares were sold in multiple transactions at prices ranging from $36.46 to $37.45. Upon request by the staff of the U.S. Se…

  3. F3

    The price reported represents the weighted average sale price per share. The shares were sold in multiple transactions at prices ranging from $37.46 to $37.65. Upon request by the staff of the U.S. Se…

  4. F4

    These options are fully vested.

Original filing · 0001193125-26-377001
Related transactions

0 other filings

Same reporting owner
Recent company activity

0 recent txs

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