YOUNG DONALD R

PrivateCIK: 1610257
Location

NORTHBOROUGH, MA

Senior insider sale

President and CEO at ASPEN AEROGELS INC — senior position signals high conviction

$195.0K

56.84K shares

What this filing means

YOUNG DONALD R plans to sell 56.84K shares of ASPEN AEROGELS INC valued at approximately $195.0K. 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.

InsiderYOUNG DONALD RCIK 1610257
IssuerASPEN AEROGELS INCCIK 1145986
DirectorOfficer· President and CEO
Since Mar 2026
56.84K
Shares to sell
$195.0K
Approx. market value
56.84K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
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Previously Exercised Stock Options

Cash

5/28/2024
56.84K
Total acquired56.84K
Planned & Completed Dispositions1
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NYSEPlanned

Units to sell

56.84K

Market value

$195.0K

11/13/2025
Total

Units

56.84K

Value

$195.0K

YOUNG DONALD R — Planned Insider Sale (Form 144) | Finecho