SPENCER DARIEN

PrivateCIK: 1226378
Location

FREMONT, CA

Senior insider sale

EVP of Global Operations at OUSTER, INC. — senior position signals high conviction

$827.9K

30.34K shares

What this filing means

SPENCER DARIEN plans to sell 30.34K shares of OUSTER, INC. valued at approximately $827.9K. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderSPENCER DARIENCIK 1226378
IssuerOUSTER, INC.CIK 1816581
Officer· EVP of Global Operations
Since Mar 2021
30.34K
Shares to sell
$827.9K
Approx. market value
20.33K
Acquired (3 months)
1
Planned
1 completed
Securities Acquired — Last 3 Months2
Sort

Restricted stock units awarded under incentive award plan

Services rendered

12/11/2025
13.33K

Restricted stock units awarded under incentive award plan

Services rendered

12/11/2025
7K
Total acquired20.33K
Planned & Completed Dispositions2
Sort

Completed

Completed

Units to sell

18.27K

Market value

$520.0K

9/12/2025

Planned — Approximate Date

NASDAQPlanned

Units to sell

12.07K

Market value

$307.9K

12/12/2025
Total

Units

30.34K

Value

$827.9K

SPENCER DARIEN — Planned Insider Sale (Form 144) | Finecho