Security key
87876P201
TECOGEN INC. - Common Stock, $0.001 par value (TGEN)
CUSIP: 87876P201
Q2 2025 13F Holders as of 30 Jun 2025
- Security type / class
- Equity / Common Stock, $0.001 par value
- 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
- 25,572,222
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2025
Institutions
29
Top holders
10
TGEN full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2025
Previous quarter: Q1 2025
TECOGEN INC. SEC filings
TECOGEN INC. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 87876P201
Recent filing periods:
Ownership snapshot
Top reported holders of TGEN - TECOGEN INC. - Common Stock, $0.001 par value (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
2/7
Latest evidence
30 Jun 2025
13D/G
13F
3/4/5
Lead comparable stake: 1.8%
5 rows are not safely comparable across share classes.
13D/G row: Tryfon Natsis
Showing 1-6 of 7 holder rows.
Quick read
Tryfon Natsis leads the comparable SEC ownership view at 1.8%.
2 of 7 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
0.05%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 7 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
|
1.8%
|
$3,650,179
460,300 shares
|
$0 | 30 Jun 2025 |
| SHIKIAR ASSET MANAGEMENT INC |
13F
Company
|
0.05%
|
$28,000
12,500 shares
|
— | 31 Mar 2025 |
| Ann Marie Brown Pacheco |
3/4/5
Trustee, 10%+ Owner
|
—
class O/S missing
|
$2,886,674
3,700,864 shares
|
— | 04 May 2022 |
| Robert A. Panora |
3/4/5
COO and President
|
—
mixed-class rows
|
$521,207
192,523 shares
mixed-class rows
|
-$273,812 | 16 Jun 2025 |
| Fred Holubow |
3/4/5
Director
|
—
class O/S missing
|
$154,000
175,000 shares
|
— | 13 Jun 2023 |
| Ralph Jenkins |
3/4/5
Director
|
—
class O/S missing
|
$132,000
150,000 shares
|
— | 23 Jun 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
29
Shares
3,850,152
Rows available
29
| 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
1
Q2 2025 holders
29
Holder diff
28
| Investor | Q1 2025 Shares | Q2 2025 Shares | Share Diff | Share Chg % | Q1 2025 value | Q2 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend