Tecogen Inc. (TGEN) — Short Interest History
The most recent FINRA short interest report for TGEN (settlement date April 30, 2026) shows 1,309,404 shares sold short , a change of 18.51% from the prior report .
Days to cover: 2.23.
Short interest history for TGEN
| Settlement date | Short interest | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| Apr 30, 2026 | 1,309,404 | 18.51% | 587,992 | 2.23 |
| Apr 15, 2026 | 1,104,890 | 6.65% | 526,671 | 2.10 |
| Mar 31, 2026 | 1,036,025 | -15.82% | 592,421 | 1.75 |
| Mar 13, 2026 | 1,230,740 | -1.04% | 309,720 | 3.97 |
| Feb 27, 2026 | 1,243,617 | -0.05% | 209,202 | 5.94 |
| Feb 13, 2026 | 1,244,200 | -20.34% | 313,638 | 3.97 |
| Jan 30, 2026 | 1,561,973 | -2.45% | 446,919 | 3.49 |
| Jan 15, 2026 | 1,601,168 | 15.95% | 1,004,118 | 1.59 |
| Dec 31, 2025 | 1,380,943 | -25.24% | 816,938 | 1.69 |
| Dec 15, 2025 | 1,847,105 | -11.90% | 419,209 | 4.41 |
| Nov 28, 2025 | 2,096,647 | 14.97% | 562,220 | 3.73 |
| Nov 14, 2025 | 1,823,694 | 29.68% | 723,062 | 2.52 |
| Oct 31, 2025 | 1,406,262 | 15.24% | 886,585 | 1.59 |
| Oct 15, 2025 | 1,220,298 | -9.99% | 996,254 | 1.22 |
| Sep 30, 2025 | 1,355,724 | 13.22% | 796,510 | 1.70 |
| Sep 15, 2025 | 1,197,465 | 6.85% | 683,379 | 1.75 |
| Aug 29, 2025 | 1,120,732 | -8.92% | 674,921 | 1.66 |
| Aug 15, 2025 | 1,230,531 | 24.81% | 1,138,808 | 1.08 |
| Jul 31, 2025 | 985,909 | 29.62% | 1,422,896 | 1.00 |
| Jul 15, 2025 | 760,632 | 9.77% | 592,896 | 1.28 |
| Jun 30, 2025 | 692,955 | 395.26% | 589,512 | 1.18 |
| Jun 13, 2025 | 139,918 | 99.48% | 372,600 | 1.00 |
| May 30, 2025 | 70,142 | 301.52% | 564,236 | 1.00 |
| May 15, 2025 | 17,469 | -20.47% | 507,951 | 1.00 |
| Apr 30, 2025 | 21,964 | 996.56% | 222,888 | 1.00 |
Frequently asked questions
- What is short interest in TGEN?
- Short interest is the total number of TGEN shares currently sold short but not yet covered or closed out. FINRA publishes this data twice monthly.
- How is TGEN short interest calculated?
- Short interest is aggregated from member firm reports to FINRA. Every U.S. broker-dealer must report aggregate short positions in each security as of the 15th and last trading day of each month.
- What does a high short interest mean?
- Higher short interest can indicate bearish sentiment, but it also raises the potential for a short squeeze if positive news forces short sellers to cover their positions simultaneously. Compare short interest to float (short percent of float) for context.