Companies / Aspen Aerogels Inc

Aspen Aerogels Inc

NYSE: ASPNCIK 1145986NORTHBOROUGH, MA

Financials · FY2025

Revenue$271.10M
Net income$-389.55M
Total debt$82.97M
Cash$151.71M
Diluted EPS$-4.73
Shares outstanding83.0M

Ownership

83.0M shares outstanding · as of Aug 4, 2026
89.9%Institutions
Ownership
Institutions89.92%74,623,642
Public float10.08%8,365,142

% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.

Insiders 11

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Insider% of sharesShares
Young Donald RCEOFormerPresident and CEO · Director
0.77%637,834
Whitaker Corby CFormerChief Commercial Officer
0.25%205,315
Mitchell Steven RFormerDirector
0.19%156,898
Noglows William PFormerDirector
0.14%114,156
Landes GreggFormerChief Operating Officer
0.12%102,931
Thoele Grant DouglasFormerCFO & Treasurer
0.09%77,732
Deegan Glenn E.FormerCAO, GC & Corp Secretary
0.08%67,176
Sweetnam James EFormerDirector
0.04%36,321
Kool KathleenFormerDirector
0.04%34,323
Robinson CariFormerDirector
0.03%22,616

Institutional holders 189

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HolderValue% of shares
Kim, LLC$34.75M14.80%
BlackRock, Inc.$33.46M6.36%
Oaktop Capital Management II, L.P.$32.77M6.23%
State Street Corporation$16.23M3.08%
Needham Investment Management LLC$15.45M5.45%
Vanguard Group Inc$13.26M5.65%
Invesco Ltd.$11.69M4.98%
George Kaiser Family Foundation$10.83M3.82%
Rice Hall James & Associates, LLC$10.37M1.97%
Gagnon Securities LLC$6.37M2.24%

Activity

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InsidersInstitutions
What insiders are doing in this stock (Form 4).
DateActorActionSecurityValueShares ΔPosition afterImpact
Jun 23, 2026Noglows William P
Director
ExerciseCommon Stock$70.3K+15K
+14.89%
114,156
0.14% of shares
low
Mar 5, 2026Young Donald R
CEO
OtherCommon Stock$28.2K-9K
-1.32%
642,109
0.77% of shares
low
Mar 8, 2026Young Donald R
CEO
OtherCommon Stock$13.8K-4K
-0.67%
637,834
0.77% of shares
low
Mar 5, 2026Whitaker Corby C
Executive
OtherCommon Stock$12.8K-4K
-1.85%
207,239
0.25% of shares
low
Mar 5, 2026Landes Gregg
Executive
OtherCommon Stock$12.5K-4K
-3.51%
104,855
0.13% of shares
low
Mar 5, 2026Thoele Grant Douglas
Executive
OtherCommon Stock$7.7K-2K
-2.93%
78,322
0.09% of shares
low
Mar 8, 2026Landes Gregg
Executive
OtherCommon Stock$6.2K-2K
-1.83%
102,931
0.12% of shares
low
Mar 8, 2026Whitaker Corby C
Executive
OtherCommon Stock$6.2K-2K
-0.93%
205,315
0.25% of shares
low

5%+ ownership events

Schedule 13D / 13G
FilerStance% of classSharesDate
Vanguard Group IncPassive13G/A—0—
Needham Investment Management LLCPassive13G———

Securities

via CUSIP / OpenFIGI
SymbolTypeMarketCUSIPFIGI
ASPN——04523Y105—