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$ Value

$0

Shares

119,000

Price

$0

Filed

Feb 5

Insider

Name

Horn David R.

Title

PRESIDENT & CFO

CIK

0001834217

Roles

Officer

Transaction Details

Transaction Date

2026-02-03

Code

A

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

119,000

Footnotes

The reported shares are represented by restricted stock units, or RSUs, which vest in 16 equal quarterly installments beginning on May 15, 2026. | One-fourth of the shares subject to the option vest on February 3, 2027 and 1/48th of the shares vest monthly thereafter.

Filing Info

Accession No.

0001834217-26-000002

Form Type

4

Issuer CIK

0001726445

Horn David R.'s History

Date Ticker Type Value
2026-02-18 SEER $15K
2026-02-03 SEER A $0
2026-02-03 SEER A $0
2025-11-19 SEER $13K
2025-08-20 SEER $14K
2025-05-20 SEER $14K

Other Insiders at SEER (90d)

Insider Bought Sold Last
Farokhzad Omid
CEO AND CHAIR
$49K 2026-02-18
Horn David R.
PRESIDENT & CFO
$15K 2026-02-18