David R. Horn - 03 Feb 2026 Form 4 Insider Report for Seer, Inc. (SEER)

Reporting relationship: PRESIDENT & CFO
Issuer ticker: SEER
Reported as of: 03 Feb 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 05 Feb 2026, 18:54:29 UTC
Prior SEC filing: 21 Nov 2025
Next SEC filing: 13 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ David Horn

Key filing fact

David R. Horn filed Form 4 for Seer, Inc. (SEER) on 05 Feb 2026.

Key facts

This page summarizes David R. Horn's Form 4 filing for Seer, Inc. (SEER).
2 reported transactions and 1 derivative row are listed below.
Accepted by SEC: 05 Feb 2026, 18:54.

Change

Previous filing in this sequence was filed on 21 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001834217 Primary reporting owner

Horn David R.

Relationship: PRESIDENT & CFO
Address: C/O SEER, INC., 3800 BRIDGE PARKWAY, SUITE 102, REDWOOD CITY
Signature: /s/ David Horn
Signature date: 05 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

SEER transaction

Class A Common Stock

Award

Transaction value: $0
Shares: +79,000
Change %: +18%
Price: $0.000000
Shares after: 509,005
Date: 03 Feb 2026
Ownership: Direct
Footnotes: F1

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SEER transaction Derivative

Employee Stock Option (right to buy)

Award

Transaction value: $0
Shares: +119,000
Change %
Price: $0.000000
Shares after: 119,000
Date: 03 Feb 2026
Ownership: Direct
Underlying class: Class A Common Stock
Underlying amount: 119,000
Exercise price: $1.79
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments beginning on May 15, 2026.

Footnote F2

One-fourth of the shares subject to the option vest on February 3, 2027 and 1/48th of the shares vest monthly thereafter.

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