Activity Companies Alerts About

Donald R. Young owns 0.77% of Aspen Aerogels

637,834 shares as of the March 8, 2026 filing, worth $3.3M at the latest close.

ASPN · $431M market cap
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Free.
The stake
0.77%
worth $3.3M at the latest close
Stake rank
#2,301
by dollar value of the stake
Last sale
340 days ago
Nov 13, 2025
Last buy
525 days ago
May 12, 2025 · $107,000

Donald R. Young owns 0.77% of ASPEN AEROGELS INC: 637,834 of 82,988,784 shares, worth about $3.3M at the 2026-10-16 close. The stake has moved from 0.61% in 2016 to 0.77% on 2026-08-04, across 4 sales and 13 purchases that moved it since 2016. The last trade that moved it was a planned sale of $183,609 on 2025-11-13.

How the stake is held

as of the Mar 8, 2026 filing
SHARES
OF THE STAKE
COMMON STOCK · stated Mar 8, 2026 · Form 4 ↗
HELD DIRECTLY
637,834
100.0%
THE STAKE
637,834
0.77%