Young Donald R, President and CEO of Aspen Aerogels Inc. ($ASPN), bought shares once on the open market for $107,000 on May 12, 2025. This purchase ranks 2,077th among nearly 5,000 insiders, below the average of $1.5 million over 3.3 transactions. He sold shares once for $183,609 on November 13, 2025, ranking 8,602nd out of nearly 12,000 sales averaging $8.6 million across 6.4 transactions.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 8, 2026 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 4275 | $3.22 | 637,834.0000 | 82,647,081 | 0.67% | 0.01% |
| March 4, 2026 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Stock Options (Right to Buy) | 212249 | $0.00 | 212,249.0000 | 82,647,081 | 9999.99% | 0.26% |
| March 5, 2026 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 8618 | $3.27 | 642,109.0000 | 82,647,081 | 1.32% | 0.01% |
| March 4, 2026 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Common Stock | 156716 | $0.00 | 650,727.0000 | 82,647,081 | 31.72% | 0.19% |
| Nov. 13, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | S | Common Stock | 56845 | $3.23 | 494,011.0000 | 82,647,081 | 10.32% | 0.07% |
| May 12, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | P | Common Stock | 20000 | $5.35 | 550,856.0000 | 82,059,182 | 3.77% | 0.02% |
| March 7, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 3569 | $7.95 | 530,856.0000 | 82,059,182 | 0.67% | 0.00% |
| March 5, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Performance Share Units | 108418 | $0.00 | 108,418.0000 | 82,059,182 | 9999.99% | 0.13% |
| March 5, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 2316 | $7.84 | 480,216.0000 | 82,059,182 | 0.48% | 0.00% |
| March 5, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Common Stock | 54209 | $0.00 | 534,425.0000 | 82,059,182 | 11.29% | 0.07% |
| March 5, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Stock Options (Right to Buy) | 76417 | $0.00 | 76,417.0000 | 82,059,182 | 9999.99% | 0.09% |
| Feb. 21, 2025 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 1108 | $8.04 | 482,532.0000 | 0 | 0.23% | 0.00% |
| Sept. 30, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | S | Common Stock | 63355 | $30.03 | 483,640.0000 | 0 | 11.58% | 0.00% |
| June 29, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 75885 | $23.85 | 546,995.0000 | 0 | 12.18% | 0.00% |
| May 29, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Common Stock | 296771 | $6.40 | 799,626.0000 | 0 | 59.02% | 0.00% |
| May 29, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | S | Common Stock | 176746 | $29.38 | 622,880.0000 | 0 | 22.10% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Stock Options (Right to Buy) | 259671 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Stock Options (Right to Buy) | 108105 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Stock Options (Right to Buy) | 26577 | $0.00 | 296,771.0000 | 0 | 8.22% | 0.00% |
| May 29, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Stock Options (Right to Buy) | 296771 | $0.00 | 0.0000 | 0 | 100.00% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | S | Common Stock | 230658 | $29.18 | 529,141.0000 | 0 | 30.36% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | S | Common Stock | 26286 | $29.72 | 502,855.0000 | 0 | 4.97% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Common Stock | 26577 | $6.40 | 759,799.0000 | 0 | 3.62% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Common Stock | 108105 | $7.54 | 733,222.0000 | 0 | 17.29% | 0.00% |
| May 28, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | M | Common Stock | 259671 | $10.78 | 625,117.0000 | 0 | 71.06% | 0.00% |
| March 8, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 4078 | $17.02 | 365,446.0000 | 0 | 1.10% | 0.00% |
| March 5, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Common Stock | 19889 | $0.00 | 369,524.0000 | 0 | 5.69% | 0.00% |
| March 5, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | D | Common Stock | 304666 | $0.00 | 349,635.0000 | 0 | 46.56% | 0.00% |
| March 5, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Stock Options (Right to Buy) | 87284 | $0.00 | 87,284.0000 | 0 | 9999.99% | 0.00% |
| Feb. 24, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 818 | $16.96 | 654,786.0000 | 0 | 0.12% | 0.00% |
| Feb. 23, 2024 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 1099 | $16.96 | 655,604.0000 | 0 | 0.17% | 0.00% |
| Sept. 7, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Stock Option (Right-to-Buy) | 170000 | $0.00 | 170,000.0000 | 0 | 9999.99% | 0.00% |
| Aug. 8, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | P | Common Stock | 25000 | $6.83 | 656,703.0000 | 0 | 3.96% | 0.00% |
| June 1, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Common Stock | 36710 | $0.00 | 631,703.0000 | 0 | 6.17% | 0.00% |
| June 1, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | A | Stock Option (Right-to-Buy) | 168843 | $0.00 | 168,843.0000 | 0 | 9999.99% | 0.00% |
| Feb. 26, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 2210 | $10.95 | 594,993.0000 | 0 | 0.37% | 0.00% |
| Feb. 24, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 844 | $10.95 | 597,203.0000 | 0 | 0.14% | 0.00% |
| Feb. 23, 2023 | ASPEN AEROGELS INC | $ASPN | Young Donald R | President and CEO | F | Common Stock | 1099 | $11.32 | 598,047.0000 | 0 | 0.18% | 0.00% |