Greenhaven Road Investment Management, L.P.
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Greenhaven Road Investment Management, L.P. reported 17 stock positions worth $145.4 million. Its top holding was Hagerty Class A (HGTY) at 17.2% of the portfolio, followed by Cellebrite Di (CLBT, 14.6%) and Kingsway (KWY, 13.3%). Compared with Q4 2025, it opened 4 new positions, sold out of 2, added to 3 and reduced 7. The biggest buy was Nextnav (NN, shares +463%) and the biggest sale Par Technology (PAR, shares −9%).
- Most Recent 13F
- Q2 2026
- Location
- GREENWICH, CT
- CIK
- 0001741129
- Portfolio Value
- $145.4M (Q1 2026)
- SEC Filing
- 0001420506-26-001077 ↗ filed May 15, 2026
Holdings Value
Holdings 17 stocks · $145.4M
| HGTY Hagerty Inc. Class A | 17.17% | 2,369,978 | $25.0M | Reduce -9.4% |
| CLBT Cellebrite Di Ltd. | 14.55% | 1,535,251 | $21.2M | Reduce -4.0% |
| KWY Kingsway Corp. | 13.29% | 1,851,776 | $19.3M | Reduce -1.7% |
| ASTS Ast Spacemobile Inc. | 12.84% | 225,219 | $18.7M | Reduce -18.2% |
| LFCR Lifecore Biomedical Inc. | 9.05% | 3,537,573 | $13.2M | Reduce -3.9% |
| PAR Par Technology Corp. | 7.43% | 810,444 | $10.8M | Reduce -8.6% |
| KKR KKR & Co. Inc. | 6.78% | 106,600 | $9.9M | Reduce -43.9% |
| BUR Burford Capital Ltd. | 6.66% | 2,140,312 | $9.7M | Add +14.7% |
| ALLT Allot Ltd. | 5.80% | 1,266,991 | $8.4M | Add +47.8% |
| NN Nextnav Inc. | 3.85% | 349,333 | $5.6M | Add +463.4% |
| ZM Zoom Communications Inc. | 1.38% | 25,000 | $2.0M | New |
| MRLN Merlin Inc. | 0.55% | 108,233 | $796K | New |
| INFL Horizon Kinetics Infl Benef | 0.36% | 16,024 | $529K | New |
| MTRX Matrix Service Co. | 0.11% | 13,969 | $160K | No change |
| PESI Perma-Fix Environmental SVCS | 0.08% | 11,303 | $120K | New |
| RSSS Research Solutions Inc. | 0.06% | 38,477 | $87K | No change |
| QRHC Quest Resource Holding Corp. | 0.03% | 31,463 | $37K | No change |
Portfolio Sells Q4 2025 → Q1 2026
| PAR Par Technology Corp. | Reduce -8.6% | 7.43% | −6.51 |
| LFCR Lifecore Biomedical Inc. | Reduce -3.9% | 9.05% | −4.00 |
| LPX Louisiana-Pacific Corp. | Sold out | 0.00% | −3.54 |
| KKR KKR & Co. Inc. | Reduce -43.9% | 6.78% | −2.63 |
| PINS Pinterest Inc. Class A | Sold out | 0.00% | −1.23 |
| HGTY Hagerty Inc. Class A | Reduce -9.4% | 17.17% | +1.93 |
| CLBT Cellebrite Di Ltd. | Reduce -4.0% | 14.55% | +2.06 |
| KWY Kingsway Corp. | Reduce -1.7% | 13.29% | +2.31 |
| ASTS Ast Spacemobile Inc. | Reduce -18.2% | 12.84% | +4.18 |
Portfolio Buys Q4 2025 → Q1 2026
| NN Nextnav Inc. | Add +463.4% | 3.85% | +3.40 |
| ALLT Allot Ltd. | Add +47.8% | 5.80% | +2.16 |
| ZM Zoom Communications Inc. | New | 1.38% | +1.38 |
| MRLN Merlin Inc. | New | 0.55% | +0.55 |
| INFL Horizon Kinetics Infl Benef | New | 0.36% | +0.36 |
| PESI Perma-Fix Environmental SVCS | New | 0.08% | +0.08 |
| BUR Burford Capital Ltd. | Add +14.7% | 6.66% | −0.55 |
Options Activity Q4 2025 → Q1 2026
| TLT iShares 20+ Year Treasury BD | put | Sold out | 4,166,500 | $363.2Mbefore exit |
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 17 | $154.0M | HGTY, CLBT, KWY, LFCR, PAR |
| Q1 2026 | 17 | $145.4M | HGTY, CLBT, KWY, ASTS, LFCR |
| Q4 2025 | 15 | $230.8M | HGTY, PAR, LFCR, CLBT, KWY |
| Q3 2025Amended | 15 | $242.3M | PAR, HGTY, CLBT, KKR, LFCR |
| Q2 2025 | 18 | $284.8M | PAR, KKR, LFCR, CLBT, BUR |
| Q1 2025 | 17 | $243.2M | PAR, CLBT, KKR, LFCR, BUR |
| Q4 2024 | 16 | $258.7M | PAR, CLBT, KKR, LFCR, BUR |
| Q3 2024 | 14 | $235.0M | PAR, KKR, CLBT, BUR, HGTY |
| Q2 2024 | 15 | $205.5M | PAR, KKR, CLBT, BUR, ALTG |
| Q1 2024 | 16 | $227.4M | PAR, KKR, CLBT, BUR, ALTG |