SPENCER DARIEN

PrivateCIK: 1226378
Location

FREMONT, CA

Senior insider sale

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

$529.5K

23.41K shares

What this filing means

SPENCER DARIEN plans to sell 23.41K shares of OUSTER, INC. valued at approximately $529.5K. 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
23.41K
Shares to sell
$529.5K
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

3/11/2026
13.33K

Restricted stock units awarded under incentive award plan

Services rendered

3/11/2026
7K
Total acquired20.33K
Planned & Completed Dispositions2
Sort

Completed

Completed

Units to sell

10.92K

Market value

$272.7K

12/12/2025

Planned — Approximate Date

NASDAQPlanned

Units to sell

12.49K

Market value

$256.8K

3/12/2026
Total

Units

23.41K

Value

$529.5K

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