8-K - TECOGEN INC. (0001537435) (Filer)
Published . Updated .
Filed: 2026-10-14 AccNo: 0001537435-26-000092 Size: 727 KB Item 8.01: Other Events Item 9.01: Financial Statements and Exhibits
Directly affected
- TGEN Tecogen
Named in this report.
Indirectly affected
- SPY SPDR S&P 500
The broad U.S. stock market
- TLT iShares 20+ Year Treasury Bond
Long-term U.S. government bonds
- QQQ Invesco QQQ
Large technology stocks
- GLD SPDR Gold Shares
Gold can move with the broad market
Price reaction, T-5 to T+3
Filed: 2026-10-14 AccNo: 0001537435-26-000092 Size: 727 KB Item 8.01: Other Events Item 9.01: Financial Statements and Exhibits
Source: sec-edgar
Tecogen (TGEN) since this story, compared with the market
Since the first closing price after “8-K - TECOGEN INC. (0001537435) (Filer),” Tecogen (TGEN) is -7.73%. The S&P 500 fund (SPY) is -0.67% over the same days, a -7.06% difference versus the market.
| Company | When | Move | Status |
|---|---|---|---|
| GLD | that day | -1.49% | final price |
| GLD | the next day | +0.27% | final price |
| GLD | two days later | +0.10% | final price |
| GLD | three days later | -0.52% | final price |
| GLD | three days earlier | +0.77% | final price |
| GLD | five days earlier | -1.52% | final price |
| QQQ | that day | -1.97% | final price |
| QQQ | the next day | -2.08% | final price |
| QQQ | two days later | -4.55% | final price |
| QQQ | three days later | -3.41% | final price |
| QQQ | three days earlier | +1.02% | final price |
| QQQ | five days earlier | +1.90% | final price |
| SPY | that day | -1.08% | final price |
| SPY | the next day | -0.80% | final price |
| SPY | two days later | -1.89% | final price |
| SPY | three days later | -1.47% | final price |
| SPY | three days earlier | +0.06% | final price |
| SPY | five days earlier | -0.11% | final price |
| Tecogen (TGEN) | that day | -0.87% | final price |
| Tecogen (TGEN) | the next day | -1.52% | final price |
| Tecogen (TGEN) | two days later | -9.57% | final price |
| Tecogen (TGEN) | three days later | -8.91% | final price |
| Tecogen (TGEN) | three days earlier | +4.78% | final price |
| Tecogen (TGEN) | five days earlier | +19.57% | final price |
| TLT | that day | +0.68% | final price |
| TLT | the next day | +2.09% | final price |
| TLT | two days later | +2.15% | final price |
| TLT | three days later | +1.42% | final price |
| TLT | three days earlier | -0.50% | final price |
| TLT | five days earlier | -1.52% | final price |
Who is named in “8-K - TECOGEN INC. (0001537435) (Filer)”
Companies carried with this story
- TGEN Tecogen
In “8-K - TECOGEN INC. (0001537435) (Filer),” Tecogen (TGEN) is linked, with no stored direction, high confidence. Reason on file: SEC 8-K filing -> direct issuer disclosure -> TGEN
How “8-K - TECOGEN INC. (0001537435) (Filer)” reaches Tecogen (TGEN)
On 14 Oct 2026, “8-K - TECOGEN INC. (0001537435) (Filer)” is the story that connects Tecogen (TGEN) to this story.
What ties Tecogen (TGEN) to the headline is this: SEC 8-K filing -> direct issuer disclosure -> TGEN
The price range for Tecogen (TGEN), and the dates in the story
TGEN traded between 1.97 and 3.02 across 6 sessions. The latest close on file is 2.09.
How strong the case is around Tecogen (TGEN)
15 out of 100
“8-K - TECOGEN INC. (0001537435) (Filer)” scores 15 out of 100. The score uses 1 sources, a -0.72% difference versus the S&P 500 (SPY), and 1 linked companies.