ASPEN AEROGELS INC (ASPN) Stock Ownership

NYSE:ASPN • US04523Y1055

3.22 USD
-0.05 (-1.53%)
At close: Mar 6, 2026
3.24 USD
+0.02 (+0.62%)
After Hours: 3/6/2026, 8:04:00 PM
Overview Stock Chart Technical Analysis Fundamental Analysis Forecast Earnings Financials Ownership News
ASPN Ownership Chart.ASPN Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ASPN Ownership.InsiderInstitutionalPublic



Shares Outstanding82.65M
Float68.96M
Float Short Interest Percentage10.78%
Owners (insider)1.11%
Owners (institutional)71.67%
Owners (insider) change1.06%
Owners (institutional) change-0.67%
ASPN Institutional Ownership HistoryASPN Institutional Ownership HistoryASPN Institutional Ownership History Sep 2021 Mar 2022 Sep 2022 Mar 2023 Sep 2023 Mar 2024 Sep 2024 Mar 2025 Sep 2025 20M 40M 60M
ASPN Historical Insider Transactions ChartASPN Historical Insider Buy and Sell Transactions ChartASPN Historical Insider Transactions Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 Nov 2025 Dec 2025 Jan 2026 Feb 2026 Mar 2026 0 100K 200K 300K
Date Name Type Shares Price Amount
Mar 5, 2026 Young Donald R Option Excercise 8618 3.27 $ 28,180.86
Mar 5, 2026 Landes Gregg Option Excercise 3814 3.27 $ 12,471.78
Mar 5, 2026 Whitaker Corby C Option Excercise 3907 3.27 $ 12,775.89
Mar 5, 2026 Daniel Santhosh P Option Excercise 986 3.27 $ 3,224.22
Mar 5, 2026 Thoele Grant Douglas Option Excercise 2368 3.27 $ 7,743.36
Mar 4, 2026 Young Donald R Grant 156716 0.00 $ 0.00
Mar 4, 2026 Landes Gregg Grant 57462 0.00 $ 0.00
Mar 4, 2026 DEEGAN GLENN E. Grant 55503 0.00 $ 0.00
Mar 4, 2026 Whitaker Corby C Grant 57462 0.00 $ 0.00
Mar 4, 2026 Thoele Grant Douglas Grant 55298 0.00 $ 0.00
Nov 13, 2025 Young Donald R Open Market Sale 56845 3.23 $ 183,609.35
Oct 1, 2025 Thoele Grant Douglas Grant 10273 0.00 $ 0.00
Sep 30, 2025 DEEGAN GLENN E. Grant 11673 0.00 $ 0.00
Sep 13, 2025 Daniel Santhosh P Option Excercise 1563 6.59 $ 10,300.17
Sep 5, 2025 Pittman Stephanie Option Excercise 1581 6.61 $ 10,450.41
Aug 12, 2025 Daniel Santhosh P Open Market Sale 6410 7.38 $ 47,317.10
May 23, 2025 Johnson Virginia Option Excercise 6129 6.39 $ 39,164.31
May 12, 2025 Young Donald R Open Market Purchase 20000 5.35 $ 107,000.00
Apr 30, 2025 SWEETNAM JAMES E Grant 10370 0.00 $ 0.00
Apr 30, 2025 Robinson Cari Grant 10370 0.00 $ 0.00
Apr 30, 2025 Kool Kathleen Grant 10370 0.00 $ 0.00
Apr 30, 2025 NOGLOWS WILLIAM P Grant 10370 0.00 $ 0.00
Apr 30, 2025 Mitchell Steven R Grant 10370 0.00 $ 0.00