Tecogen Inc.
US ˙ NYSEAM ˙ US87876P2011

SecurityTGEN / Tecogen Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership319,836 shares
Latest Disclosed Value $ 818,781
UBS Group AG reports 204.72% increase in ownership of TGEN / Tecogen Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 319,836 shares of Tecogen Inc. (US:TGEN) valued at $818,780 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 104,959 shares of Tecogen Inc.. This represents a change in shares of 204.72% during the quarter. The current value of the position is $1,835,859 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F TECOGEN INC COM NEW 87876P201 319,836 214,877 204.72 819 57.92 0.0000
2026-01-29 2025-12-31 13F TECOGEN INC COM NEW 87876P201 104,959 95,371 994.69 518 516.67 0.0001
2025-11-13 2025-09-30 13F TECOGEN INC COM NEW 87876P201 9,588 9,585 319,500.00 84 0.0000
2025-08-14 2025-06-30 13F TECOGEN INC COM NEW 87876P201 3 3 0 0.0000
2020-07-31 2020-06-30 13F TECOGEN INC COM NEW 87876P201 0 -1,131 -100.00 0 -100.00
2020-05-01 2020-03-31 13F TECOGEN INC COM NEW 87876P201 1,131 442 64.15 1 0.00 0.0000
2020-02-14 2019-12-31 13F TECOGEN INC COM NEW 87876P201 689 688 68,800.00 1 0.0000
2019-11-14 2019-09-30 13F TECOGEN INC COM NEW 87876P201 1 -645 -99.85 0 -100.00
2019-08-14 2019-06-30 13F TECOGEN INC COM NEW 87876P201 646 0 0.00 2 -33.33 0.0000
2019-05-14 2019-03-31 13F TECOGEN INC COM NEW 87876P201 646 -2,695 -80.66 3 -75.00 0.0000
2019-02-14 2018-12-31 13F TECOGEN INC COM NEW 87876P201 3,341 2,695 417.18 12 500.00 0.0000
2018-11-14 2018-09-30 13F TECOGEN INC COM NEW 87876P201 646 -2,119 -76.64 2 -80.00 0.0000
2018-08-14 2018-06-30 13F TECOGEN INC COM NEW 87876P201 2,765 701 33.96 10 66.67 0.0000
2018-05-15 2018-03-31 13F TECOGEN INC COM NEW 87876P201 2,064 1,418 219.50 6 200.00 0.0000
2018-02-14 2017-12-31 13F TECOGEN INC COM NEW 87876P201 646 1 0.16 2 0.00 0.0000
2017-11-14 2017-09-30 13F TECOGEN INC COM NEW 87876P201 645 0 0.00 2 0.00 0.0000
2017-11-14 2017-06-30 13F/A-1 TECOGEN INC COM NEW 87876P201 645 -1,655 -71.96 2 -77.78 0.0000
2017-08-14 2017-06-30 13F TECOGEN INC COM NEW 87876P201 645 -1,655 2
2017-11-14 2017-03-31 13F/A-1 TECOGEN INC COM NEW 87876P201 2,300 2,300 9 0.0000
2017-05-12 2017-03-31 13F TECOGEN INC COM NEW 87876P201 2,300 2,300 9
2016-08-12 2016-06-30 13F TECOGEN INC COM NEW 87876P201 0 -1,068 -100.00 0 -100.00
2016-05-12 2016-03-31 13F TECOGEN INC COM NEW 87876P201 1,068 -1,688 -61.25 4 -60.00 0.0000
2016-02-16 2015-12-31 13F TECOGEN INC COM NEW 87876P201 2,756 2,600 1,666.67 10 900.00 0.0000
2015-11-13 2015-09-30 13F TECOGEN INC COM NEW 87876P201 156 -277 -63.97 1 -50.00 0.0000
2015-08-14 2015-06-30 13F TECOGEN INC COM NEW 87876P201 433 433 2 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.