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ASPEN AEROGELS INC (ASPN) Stock Ownership and Short Interest

USA - NYSE:ASPN - US04523Y1055 - Common Stock

8.48 USD
+0.33 (+4.05%)
Last: 10/24/2025, 2:12:00 PM
ASPN Ownership Chart.ASPN Ownership Chart: showing Insider, Institutional ownership and shares available to the public.ASPN Ownership.InsiderInstitutionalPublic



Shares Outstanding82.36M
Float68.87M
Float Short Interest Percentage13.24%
Owners (insider)1.14%
Owners (institutional)73.41%
Owners (insider) change0.26%
Owners (institutional) change0%
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 Nov 2024 Dec 2024 Jan 2025 Feb 2025 Mar 2025 Apr 2025 May 2025 Jun 2025 Jul 2025 Aug 2025 Sep 2025 Oct 2025 0 50K 100K 150K 200K
Date Name Type Shares Price Amount
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
Mar 7, 2025 Johnson Virginia Option Excercise 1924 7.95 $ 15,295.80
Mar 7, 2025 Young Donald R Option Excercise 3569 7.95 $ 28,373.55
Mar 7, 2025 SCHILLING KEITH L Option Excercise 1924 7.95 $ 15,295.80
Mar 7, 2025 Whitaker Corby C Option Excercise 1924 7.95 $ 15,295.80
Mar 7, 2025 RODRIGUEZ RICARDO C. Option Excercise 1924 7.95 $ 15,295.80
Mar 7, 2025 Landes Gregg Option Excercise 1924 7.95 $ 15,295.80
Mar 5, 2025 Daniel Santhosh P Option Excercise 428 7.84 $ 3,355.52
Mar 5, 2025 Daniel Santhosh P Grant 4783 0.00 $ 0.00
Mar 5, 2025 Landes Gregg Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 Landes Gregg Grant 24713 0.00 $ 0.00
Mar 5, 2025 RODRIGUEZ RICARDO C. Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 RODRIGUEZ RICARDO C. Grant 39859 0.00 $ 0.00
Mar 5, 2025 Johnson Virginia Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 Johnson Virginia Grant 26307 0.00 $ 0.00
Mar 5, 2025 Young Donald R Option Excercise 2316 7.84 $ 18,157.44
Mar 5, 2025 Young Donald R Grant 54209 0.00 $ 0.00
Mar 5, 2025 SCHILLING KEITH L Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 SCHILLING KEITH L Grant 24713 0.00 $ 0.00
Mar 5, 2025 Whitaker Corby C Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 Whitaker Corby C Grant 25510 0.00 $ 0.00
Mar 5, 2025 Pittman Stephanie Option Excercise 936 7.84 $ 7,338.24
Mar 5, 2025 Pittman Stephanie Grant 22321 0.00 $ 0.00
Feb 25, 2025 RODRIGUEZ RICARDO C. Option Excercise 173 7.46 $ 1,290.58
Feb 21, 2025 Whitaker Corby C Option Excercise 499 8.04 $ 4,011.96
Feb 21, 2025 Landes Gregg Option Excercise 499 8.04 $ 4,011.96
Feb 21, 2025 Young Donald R Option Excercise 1108 8.04 $ 8,908.32
Feb 21, 2025 RODRIGUEZ RICARDO C. Option Excercise 305 8.04 $ 2,452.20
Feb 21, 2025 SCHILLING KEITH L Option Excercise 499 8.04 $ 4,011.96
Nov 1, 2024 SCHILLING KEITH L Option Excercise 349 18.05 $ 6,299.45