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 Q2 2025?

29 institutional investors reported TGEN - TECOGEN INC. - Common Stock, $0.001 par value per share for Q2 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

Q2 2025 13F Holders as of 30 Jun 2025

Security type / class: Equity / Common Stock, $0.001 par value per share
Total 13F shares: 3,850,152
Total 13F value: $26,220,032
Share change: +3,837,652
SEC-reported price per share: $6.80
Number of holders: 29
Value change: +$26,134,804
Number of buys: 29
Shares outstanding: 29,908,131

Security key

87876P201

Report period

Q2 2025

Institutions

Top holders

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

Broader feeds

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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

Tryfon Natsis

Comparable rows

2/6

Latest evidence

30 Jun 2025

13D/G 13F 3/4/5 Lead comparable stake: 1.8% 4 rows are not safely comparable across share classes. 13D/G row: Tryfon Natsis

Quick read

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

2 of 6 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 2

Tryfon Natsis 1.8%

SHIKIAR ASSET MANAGEMENT INC 0.04%

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

Detailed SEC evidence table Showing 1-6 of 6 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
SHIKIAR ASSET MANAGEMENT INC	13F Company 13F	0.04%	$28,000 12,500 shares	—	31 Mar 2025
Ann Marie Brown Pacheco	3/4/5 Trustee, 10%+ Owner 3/4/5	— class O/S missing	$2,886,674 3,700,864 shares	—	04 May 2022
Fred Holubow	3/4/5 Director 3/4/5	— class O/S missing	$154,000 175,000 shares	—	13 Jun 2023
Ralph Jenkins	3/4/5 Director 3/4/5	— class O/S missing	$132,000 150,000 shares	—	23 Jun 2022
Benjamin M. Locke	3/4/5 CEO, Director 3/4/5	— class O/S missing	$4,616 5,918 shares	—	16 Mar 2022

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 Q2 2025

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

Institutions

3,850,152

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 Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders

Q2 2025 holders

Holder diff

Investor	Q1 2025 Shares	Q2 2025 Shares	Share Diff	Share Chg %	Q1 2025 value	Q2 2025 value	Value change	Value Chg %