Who owns STAR GROUP, L.P., from the filings themselves: stakes over 5% (Schedule 13D/G), the institutional managers reporting the stock each quarter (13F), and the funds holding it (N-PORT).
Investors crossing 5% ownership must disclose it. Schedule 13G filers certify the stake is passive; Schedule 13D is the general form for everyone else — founders, strategic holders, and activists alike. Each entry is the holder's most recent disclosure. Coverage begins with SEC's structured filings from December 18, 2024; a holder appears once they file or amend after that date.
Bandera Partners LLC: 8.1% · 2,745,360 shares — Bylinsky Gregory: 8.1% · 2,750,187 shares — Gramm Jefferson: 8.7% · 2,951,843 shares
Hartree Partners, LP: 9.8% · 3,400,907 shares
Every institutional manager whose latest 13F reports this stock, largest position first. "% of their portfolio" is the weight inside that manager's own book — how much conviction the position represents; "% of company" is how much of STAR GROUP, L.P. they hold. Together these 84 managers report 42.13% of shares outstanding.
| Investor | Position value | Shares | % of their portfolio | % of company | As of |
|---|---|---|---|---|---|
| Hartree Partners, LP | $43.7M | 3,400,907 | 9.31% | 10.37% | June 30, 2026 |
| Bandera Partners LLC | $35.3M | 2,745,360 | 12.42% | 8.37% | June 30, 2026 |
82 more institutional holders behind a free account
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Sign up freeFunds disclosing this stock in their monthly N-PORT portfolio, with the position's share of the fund's net assets. Together these 12 funds hold 0.47% of shares outstanding — counted inside the manager totals above, not on top of them, since a fund's shares also appear in its manager's 13F.
| Fund | Position value | % of net assets | % of company | As of |
|---|---|---|---|---|
| RiverPark Strategic Income Fund | $804K | 0.13% | 0.19% | June 30, 2026 |
| Destinations Global Fixed Income Opportunities Fund | $333K | 0.05% | 0.08% | February 28, 2026 |
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