Greenhaven Road Investment Management, L.P.
Long book
$145.4M
Q1 2026
Positions
17
Top-10 weight
97%
concentration
Last quarter
+13.4%
SPY +14.8%
Turnover
32%
of book per quarter
Strategy in plain words
auto-generated from filingsGreenhaven Road Investment Management, L.P. is a concentrated fundamental stock-picker, running a $145.4M US long book across 17 positions.
The portfolio is extremely concentrated — the top 10 positions are almost the whole book. The portfolio is actively managed, with meaningful quarterly turnover. Current anchor positions: HAGERTY INC-A, CELLEBRITE DI LTD, KINGSWAY CORP, AST SPACEMOBILE INC, LIFECORE BIOMEDICAL INC.
Over the last 9 quarters its long book ran on average 4.9pp per quarter behind the S&P 500, beating the index in 2 of 9 quarters. We rate its filings highest-signal: new buys here are worth attention.
Implied long-book return vs S&P 500
methodology: positions priced quarterly, no shorts/options Fund long book S&P 500
Q1 2024
-4.1%
Q2 2024
+13.5%
Q3 2024
+17.0%
Q4 2024
-11.1%
Q1 2025
+9.7%
Q2 2025
-10.2%
Q3 2025
-0.3%
Q4 2025
-31.5%
Q1 2026
+13.4%
Sector allocation
Financials 44%
Technology 34%
Communications 13%
Healthcare 9%
Industrials 0%
Utilities 0%
Services media 0%
Long book by quarter
What does Greenhaven Road own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| HGTY HAGERTY INC-A | Financials | 2.4M | $25.0M | 17.2% | -9.4% |
| CLBT CELLEBRITE DI LTD | Technology | 1.5M | $21.2M | 14.6% | -4.0% |
| KWY KINGSWAY CORP | Financials | 1.9M | $19.3M | 13.3% | -1.7% |
| ASTS AST SPACEMOBILE INC | Communications | 225.2K | $18.7M | 12.8% | -18.2% |
| LFCR LIFECORE BIOMEDICAL INC | Healthcare | 3.5M | $13.2M | 9.1% | -3.9% |
| PAR PAR TECHNOLOGY CORP/DEL | Technology | 810.4K | $10.8M | 7.4% | -8.6% |
| KKR KKR & CO INC | Financials | 106.6K | $9.9M | 6.8% | -43.9% |
| BUR BURFORD CAPITAL LTD | Financials | 2.1M | $9.7M | 6.7% | +14.7% |
| ALLT ALLOT LTD | Technology | 1.3M | $8.4M | 5.8% | +47.8% |
| NN NEXTNAV INC | Technology | 349.3K | $5.6M | 3.8% | +463.4% |
| ZM ZOOM COMMUNICATIONS INC | Technology | 25.0K | $2.0M | 1.4% | New |
| MRLN MERLIN INC | Technology | 108.2K | $796K | 0.5% | New |
| MTRX MATRIX SERVICE CO | Industrials | 14.0K | $160K | 0.1% | Held |
| PESI PERMA-FIX ENVIRONMENTAL SVCS | Utilities | 11.3K | $120K | 0.1% | New |
| RSSS RESEARCH SOLUTIONS INC | Services media | 38.5K | $87K | 0.1% | Held |
| QRHC QUEST RESOURCE HOLDING CORP | Utilities | 31.5K | $37K | 0.0% | Held |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | May 15, 2026 | 17 | $145.4M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Feb 13, 2026 | 16 | $594.0M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR/ARESTATEMENT | Dec 1, 2025 | 17 | $677.6M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Nov 12, 2025 | 17 | $644.8M | SEC ↗ | |
| Q2 2025 | 13F-HR | Aug 13, 2025 | 19 | $291.9M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | May 5, 2025 | 18 | $245.3M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Feb 13, 2025 | 19 | $625.2M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Nov 13, 2024 | 15 | $235.1M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Aug 14, 2024 | 18 | $215.8M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | May 15, 2024 | 19 | $236.1M | canonical | SEC ↗ |
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