Aspen Aerogels Inc

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Aspen Aerogels Inc
TickerASPN
CIK #0001145986
CUSIP04523Y105
SectorTrade & Services - Wholesale-Lumber & Other Construction Materials
Address30 Forbes Road Building B, Northborough, MA 01532
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Aspen Aerogels Inc 2022-04-06 50.0 M Exemption: 506(b) · Duration: One year or less · Revenue: Decline to Disclose
CIK Filing 2011 - 2026
[0001145986] 10-K
[0001145986] 10-Q
[0001145986] 3
[0001145986] 4
[0001145986] 5
[0001145986] 8-K
[0001145986] D
[0001145986] SC 13D
[0001145986] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Needham Investment Management LLC Aspen Aerogels Inc [2026-02-13] 0.0
FMR LLC Aspen Aerogels Inc [2024-11-12] 0.0
BlackRock Inc Aspen Aerogels Inc [2024-01-31] 5.3
Encompass Capital Advisors LLC Aspen Aerogels Inc [2022-07-08] 7.58
Spring Creek Capital LLC Aspen Aerogels Inc [2022-04-05] 0.7
Spring Creek Capital LLC Aspen Aerogels Inc [2021-07-09] 10.88
BlackRock Inc Aspen Aerogels Inc [2021-02-02] 6.7
Oaktop Capital Management II LP Aspen Aerogels Inc [2020-02-04] 10.67
Leviticus Partners L P Aspen Aerogels Inc [2019-12-04] 4.56
Telemark Asset Management LLC Aspen Aerogels Inc [2019-02-26] 5.44
Oaktop Capital Management II LP Aspen Aerogels Inc [2019-02-13] 10.82
Oaktop Capital Management II LP Aspen Aerogels Inc [2018-02-14] 6.0
Ariel Investments LLC Aspen Aerogels Inc [2017-02-14] 1655326233369380.0
Wellington Management Group LLP Aspen Aerogels Inc [2016-02-11] 8.86
Wellington Trust Co N A Aspen Aerogels Inc [2016-02-11] 5.27
Price T Rowe Associates Inc /MD/ Aspen Aerogels Inc [2015-02-12] 6.1
George Kaiser Family Foundation Aspen Aerogels Inc [2015-02-11] 13.78
Gilder Gagnon Howe & Co LLC Aspen Aerogels Inc [2015-02-10] 5.17
RCGM LLC Aspen Aerogels Inc [2015-01-23] 12.7
FMR LLC Aspen Aerogels Inc [2014-07-10] 0.0
Form 3/4/5 Filer 2011 - 2026
Noglows William P
Aspen Aerogels Inc
Sweetnam James E
Mitchell Steven R
Kool Kathleen
Robinson Cari
Landes Gregg
Young Donald R
Whitaker Corby C
Thoele Grant Douglas
Deegan Glenn E
Daniel Santhosh P
Johnson Virginia
Rodriguez Ricardo C
Schilling Keith L
Pittman Stephanie
Koch Inc
Wood River Capital LLC
Koch Industries LLC
Noetzel Mark L
Blalock Rebecca
Conte Kelley
Gervis Robert M
Reilly Richard F
Spring Creek Capital LLC
Fairbanks John F
Gould George L
SCC Holdings LLC
Ball Jeffrey Alan
Reservoir Capital Partners LP
Reservoir Capital Master Fund LP
Reservoir Capital Group LLC
Reservoir Capital Partners Cayman LP
Huff Craig A
Stern Daniel H
RCGM LLC
RCP GP LLC
Battin P Ramsay
Schmidt Kevin Alan
Prend David J
George Kaiser Family Foundation
Levit Ken
Thomas Robert
GKFF Ventures I LLC
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Landes Gregg
Common Stock
2026-03-08 Tax withheld 1,924 $3.22 6,195
Young Donald R
Common Stock
2026-03-08 Tax withheld 4,275 $3.22 13,766
Whitaker Corby C
Common Stock
2026-03-08 Tax withheld 1,924 $3.22 6,195
Thoele Grant Douglas
Common Stock
2026-03-08 Tax withheld 590 $3.22 1,900
Daniel Santhosh P
Common Stock
2026-03-05 Tax withheld 986 $3.27 3,224
Thoele Grant Douglas
Common Stock
2026-03-05 Tax withheld 2,368 $3.27 7,743
Landes Gregg
Common Stock
2026-03-05 Tax withheld 3,814 $3.27 12,472
Young Donald R
Common Stock
2026-03-05 Tax withheld 8,618 $3.27 28,181
Whitaker Corby C
Common Stock
2026-03-05 Tax withheld 3,907 $3.27 12,776
Young Donald R
Common Stock
2026-03-04 Grant 156,716 $0.00
Thoele Grant Douglas
Common Stock
2026-03-04 Grant 55,298 $0.00
Young Donald R
Stock Options (Right to Buy) · derivative
2026-03-04 Grant 212,249 $0.00
Landes Gregg
Common Stock
2026-03-04 Grant 57,462 $0.00
Whitaker Corby C
Common Stock
2026-03-04 Grant 57,462 $0.00
Deegan Glenn E
Common Stock
2026-03-04 Grant 55,503 $0.00
Deegan Glenn E
Stock Options (Right to Buy) · derivative
2026-03-04 Grant 75,171 $0.00
Thoele Grant Douglas
Stock Options (Right to Buy) · derivative
2026-03-04 Grant 74,893 $0.00
Whitaker Corby C
Stock Options (Right to Buy) · derivative
2026-03-04 Grant 77,824 $0.00
Landes Gregg
Stock Options (Right to Buy) · derivative
2026-03-04 Grant 77,824 $0.00
Young Donald R
Common Stock
2025-11-13 Sell 56,845 $3.23 183,609
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 169 68,787,676
2025-12-31 186 72,009,694
2025-09-30 205 74,007,910
2025-06-30 185 71,879,387
2025-03-31 224 73,009,698
2024-12-31 235 77,957,970
2024-09-30 246 71,947,030
2024-06-30 226 74,586,827
2024-03-31 169 79,903,507
2023-12-31 173 80,683,793
2023-09-30 161 72,768,279
2023-06-30 161 67,881,311
Form 13F Holdings
Firm Period DFND Voting Shares
Y-Intercept Hong Kong Ltd [2026-06-30] SOLE 36,820 36,820
Diversified Trust Co [2026-06-30] SOLE 0 33,047
Wealth Enhancement Advisory Services LLC [2026-06-30] SOLE 1,360 30,386
Strategic Investment Solutions Inc /IL [2026-06-30] SOLE 0 6,010
IFP Advisors LLC [2026-06-30] SOLE 5,561 5,561
First PREMIER Bank [2026-06-30] OTR 4,000 4,000
Alaska Retirement Management Board [2026-06-30] SOLE 3,385 3,385
Gamma Investing LLC [2026-06-30] DFND 519 519
Fortitude Family Office LLC [2026-06-30] SOLE 126 126
Farther Finance Advisors LLC [2026-06-30] SOLE 0 100
True Wealth Design LLC [2026-06-30] SOLE 0 14
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