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ASPN · Aspen Aerogels Inc

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$5.85 -0.22 (-3.62%) At close · Aug 14
Market Cap
$485.07M
Shares
82.99M

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-07-06 823,509 637,891 1,461,400 30.2%
2026-06-29 878,509 554,476 1,432,985 21.3%
2026-06-22 1,062,268 1,016,843 2,079,111 22.4%
2026-06-15 934,472 753,883 1,688,355 24.8%
2026-06-08 778,164 504,901 1,283,065 22.1%
2026-06-01 918,186 1,172,402 2,090,588 32.2%
2026-05-25 976,166 1,160,381 2,136,547 29.6%
2026-05-18 880,946 1,188,195 2,069,141 31.5%
2026-05-11 2,022,728 1,642,083 3,664,811 29.4%
2026-05-04 1,787,735 2,405,519 4,193,254 33.7%
2026-04-27 1,239,753 1,135,227 2,374,980 29.5%
2026-04-20 1,684,714 1,371,395 3,056,109 34.7%
2026-04-13 1,234,253 1,392,604 2,626,857 36.3%
2026-04-06 1,134,566 1,179,941 2,314,507 35.2%
2026-03-30 1,005,456 794,691 1,800,147 30.9%
2026-03-23 712,362 684,303 1,396,665 33.5%
2026-03-16 978,561 1,441,725 2,420,286 36.9%
2026-03-09 1,465,812 1,438,634 2,904,446 38.4%
2026-03-02 1,518,142 1,311,428 2,829,570 34.4%
2026-02-23 2,349,261 5,156,914 7,506,175 44.9%
2026-02-16 953,653 788,115 1,741,768 32.5%
2026-02-09 897,647 926,196 1,823,843 33.9%
2026-02-02 945,946 1,309,036 2,254,982 35.5%
2026-01-26 1,012,886 1,733,506 2,746,392 37.3%
2026-01-19 828,913 1,669,162 2,498,075 38.9%
2026-01-12 1,267,896 1,340,693 2,608,589 38.2%
2026-01-05 1,415,093 1,637,123 3,052,216 35.7%
2025-12-29 1,895,677 3,265,494 5,161,171 36.0%
2025-12-22 852,061 1,209,741 2,061,802 40.2%
2025-12-15 1,325,670 2,380,114 3,705,784 40.0%
2025-12-08 1,155,695 1,734,002 2,889,697 40.3%
2025-12-01 1,677,028 2,383,265 4,060,293 38.4%
2025-11-24 1,005,065 1,662,441 2,667,506 42.0%
2025-11-17 2,248,765 3,137,449 5,386,214 40.1%
2025-11-10 2,913,154 6,657,205 9,570,359 49.2%
2025-11-03 4,148,419 9,675,431 13,823,850 48.2%
2025-10-27 1,043,451 2,990,081 4,033,532 45.4%
2025-10-20 1,013,601 1,964,708 2,978,309 39.5%
2025-10-13 1,524,406 4,148,727 5,673,133 48.1%
2025-10-06 1,653,414 4,691,467 6,344,881 47.5%
2025-09-29 1,398,888 1,854,353 3,253,241 39.1%
2025-09-22 975,233 2,011,906 2,987,139 43.0%
2025-09-15 882,119 1,650,698 2,532,817 33.8%
2025-09-08 1,351,881 2,444,032 3,795,913 40.6%
2025-09-01 822,525 1,676,321 2,498,846 46.0%
2025-08-25 853,037 1,414,304 2,267,341 39.8%
2025-08-18 1,247,763 1,866,506 3,114,269 41.1%
Showing 1–47 of 47 weeks
Key facts CIK 1145986 CUSIP 04523Y105 13F (30d) 175 filings 172 filers Visit website Investor relations