Greenhaven Road Investment Management, L.P. — 13F Holdings & Portfolio
CIK 1741129 · latest 13F-HR filed 2026-05-15
Greenhaven Road Investment Management, L.P. manages $145.4M in 13F-reported U.S. long-equity assets across 17 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are HGTY (17.17%), CLBT (14.55%), KFS (13.29%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 4 new positions, exited 2, added to 1, and trimmed 10.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
$145.4M
Long-equity book
17
Distinct positions
2026-03-31
Filed 2026-05-15
+4 / −2 / ↑1 / ↓10
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Trims
- PAR TECHNOLOGY CORP-$21.4M -66.4%
- LIFECORE BIOMEDICAL INC-$17.0M -56.3%
- KKR & CO INC-$11.9M -54.6%
- HAGERTY INC-$10.2M -29.0%
- CELLEBRITE DI LTD-$7.7M -26.7%
New Positions
- ZOOM COMMUNICATIONS INC$2.0M
- MERLIN INC$795.5K
- LISTED FDS TR$528.8K
- PERMA-FIX ENVIRONMENTAL SVCS$120.5K
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | HAGERTY INC | HGTY | 405166109 | $25.0M | 17.17% | 2,369,978 | SH |
| 2 | CELLEBRITE DI LTD | CLBT | M2197Q107 | $21.2M | 14.55% | 1,535,251 | SH |
| 3 | KINGSWAY FINL SVCS INC | KFS | 496904202 | $19.3M | 13.29% | 1,851,776 | SH |
| 4 | AST SPACEMOBILE INC | ASTS | 00217D100 | $18.7M | 12.84% | 225,219 | SH |
| 5 | LIFECORE BIOMEDICAL INC | LFCR | 514766104 | $13.2M | 9.05% | 3,537,573 | SH |
| 6 | PAR TECHNOLOGY CORP | PAR | 698884103 | $10.8M | 7.43% | 810,444 | SH |
| 7 | KKR & CO INC | KKR | 48251W104 | $9.9M | 6.78% | 106,600 | SH |
| 8 | BURFORD CAPITAL LIMITED | BUR | G17977110 | $9.7M | 6.66% | 2,140,312 | SH |
| 9 | ALLOT LTD | ALLT | M0854Q105 | $8.4M | 5.80% | 1,266,991 | SH |
| 10 | NEXTNAV INC | NN | 65345N106 | $5.6M | 3.85% | 349,333 | SH |
| 11 | ZOOM COMMUNICATIONS INC | ZM | 98980L101 | $2.0M | 1.38% | 25,000 | SH |
| 12 | MERLIN INC | MRLN | 590106100 | $795.5K | 0.55% | 108,233 | SH |
| 13 | LISTED FDS TR | INFL | 53656F623 | $528.8K | 0.36% | 16,024 | SH |
| 14 | MATRIX SVC CO | MTRX | 576853105 | $160.4K | 0.11% | 13,969 | SH |
| 15 | PERMA-FIX ENVIRONMENTAL SVCS | PESI | 714157203 | $120.5K | 0.08% | 11,303 | SH |
| 16 | RESEARCH SOLUTIONS INC | RSSS | 761025105 | $87.0K | 0.06% | 38,477 | SH |
| 17 | QUEST RESOURCE HLDG CORP | QRHC | 74836W203 | $37.4K | 0.03% | 31,463 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-15 | $145.4M | 17 | 0001420506-26-001077 |
| 2025-12-31 | 2026-02-13 | $594.0M | 16 | 0001420506-26-000339 |
| 2025-09-30 | 2025-12-01 | $677.6M | 17 | 0001420506-25-003515 |