What does CUSIP 87876P201 represent in this 13F holders report?

CUSIP 87876P201 is the security identifier for TGEN - TECOGEN INC. - Common Stock, $0.001 par value per share used to aggregate holder disclosures.

How many institutions held TGEN - TECOGEN INC. - Common Stock, $0.001 par value per share in Q3 2025?

70 institutional investors reported TGEN - TECOGEN INC. - Common Stock, $0.001 par value per share for Q3 2025. Use the holders table for investor-level position and value details.

TECOGEN INC. - Common Stock, $0.001 par value per share (TGEN)

CUSIP: 87876P201

Q3 2025 13F Holders as of 30 Sep 2025

Security type / class: Equity / Common Stock, $0.001 par value per share
Total 13F shares: 7,727,290
Total 13F value: $68,035,883
Share change: +3,862,438
Put/Call ratio: 212%
SEC-reported price per share: $8.81
Number of holders: 70
Value change: +$34,021,652
Number of buys: 56
Number of sells: 7
Shares outstanding: 29,908,131

Security key

87876P201

Report period

Q3 2025

Institutions

Top holders

TGEN full security history Ownership snapshot Full 13F holder table TECOGEN INC. SEC filings TECOGEN INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Ownership snapshot

Top reported holders of TGEN - TECOGEN INC. - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Tryfon Natsis

Disclosed value leader

VANGUARD GROUP INC

Comparable rows

15/15

Latest evidence

30 Jun 2025

13D/G 13F Lead comparable stake: 1.8% 13D/G row: Tryfon Natsis Showing 1-6 of 15 holder rows.

Quick read

Tryfon Natsis leads the comparable SEC ownership view at 1.8%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Tryfon Natsis's linked filing trail.

Comparable ownership Top 5

Tryfon Natsis 1.8%

VANGUARD GROUP INC 2.8%

BARD ASSOCIATES INC 2.1%

Clear Harbor Asset Management, LLC 2%

Portolan Capital Management, LLC 1.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Tryfon Natsis	13D/G Tryfon Natsis and Depoina Pantopoulou, as Joint Tenants with the Right of Survivorship 13D/G	1.8%	$3,650,179 460,300 shares	$0	30 Jun 2025
VANGUARD GROUP INC	13F Company 13F	2.8%	$5,614,372 825,643 shares	—	30 Jun 2025
BARD ASSOCIATES INC	13F Company 13F	2.1%	$4,240,358 623,582 shares	—	30 Jun 2025
Clear Harbor Asset Management, LLC	13F Company 13F	2%	$4,148,000 610,000 shares	—	30 Jun 2025
Portolan Capital Management, LLC	13F Company 13F	1.6%	$3,165,883 465,571 shares	—	30 Jun 2025
HERALD INVESTMENT MANAGEMENT Ltd	13F Company 13F	1.1%	$2,192,963 321,078 shares	—	30 Jun 2025

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

7,727,290

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2025 vs Q2 2025 Across Filers

Q2 2025 holders

Q3 2025 holders

Holder diff

Investor	Q2 2025 Shares	Q3 2025 Shares	Share Diff	Share Chg %	Q2 2025 value	Q3 2025 value	Value change	Value Chg %