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OAKTOP CAPITAL MANAGEMENT II, L.P.

Position in ASPN — Aspen Aerogels Inc

CIK 1550660 Chatham, NJ

Position in ASPN

as of Jun 30, 2026 · filed Aug 7, 2026
Position Value
$32,769,393
+$15,092,528 QoQ
Shares Held
5,168,674
0.0% QoQ
Ownership
6.23%
of shares outstanding
% of Portfolio
1.39%
of 13F equity value
Holder Rank
#3
of 179 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in ASPN Over Time

Shares Held

Position Value (USD)

Position in Specialty Chemicals

Basic Materials · as of Jun 30, 2026

OAKTOP CAPITAL MANAGEMENT II, L.P. holds $32,769,393 across 1 Specialty Chemicals name. ASPN ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ASPN
Aspen Aerogels Inc
This page
5,168,674 $32,769,393

All Filings in ASPN

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $32,769,393 5,168,674
2026-03-31 $17,676,865 5,168,674
2025-12-31 $12,436,505 4,394,525
2025-09-30 $30,585,894 4,394,525
2025-06-30 $26,015,588 4,394,525
2025-03-31 $28,081,014 4,394,525
2024-12-31 $44,437,437 3,740,525
2024-09-30 $98,037,137 3,540,525
2024-06-30 $79,671,521 3,340,525
2024-03-31 $58,793,240 3,340,525
2023-12-31 $50,413,281 3,194,758
2023-09-30 $27,474,918 3,194,758
2023-06-30 $25,206,640 3,194,758
2023-03-31 $23,800,947 3,194,758
2022-12-31 $37,666,196 3,194,758
2022-09-30 $29,455,668 3,194,758
2022-06-30 $31,564,209 3,194,758
2022-03-31 $101,362,855 2,939,758
2021-12-31 $146,370,550 2,939,758
2021-09-30 $135,258,265 2,939,758
2021-06-30 $87,957,559 2,939,758
2021-03-31 $59,794,677 2,939,758
2020-12-31 $49,064,561 2,939,758
2020-09-30 $32,190,350 2,939,758
2020-06-30 $19,343,607 2,939,758
2020-03-31 $17,436,114 2,839,758