KIRR MARBACH & CO LLC /IN/
Long book
$548.7M
Q1 2026
Positions
57
Top-10 weight
49%
concentration
Last quarter
+9.8%
SPY +14.8%
Turnover
11%
of book per quarter
Strategy in plain words
auto-generated from filingsKIRR MARBACH & CO LLC /IN/ is a concentrated fundamental stock-picker, running a $548.7M US long book across 57 positions.
The portfolio is moderately concentrated (top 10 ≈ 49% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: MASTEC INC, EMCOR GROUP INC, BROADCOM INC, ALPHABET INC-CL A, AUTOZONE INC.
Over the last 9 quarters its long book ran on average 0.4pp per quarter ahead of the S&P 500, beating the index in 5 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
+2.1%
Q2 2024
+7.7%
Q3 2024
+3.4%
Q4 2024
-5.1%
Q1 2025
+16.5%
Q2 2025
+9.6%
Q3 2025
-3.3%
Q4 2025
+3.3%
Q1 2026
+9.8%
Sector allocation
Industrials 38%
Technology 15%
Consumer discretionary 10%
Utilities 10%
Services media 6%
Real estate 6%
Energy 5%
Healthcare 4%
Long book by quarter
What does KIRR MARBACH own?
Q1 2026 13F| Company | Sector | Shares | Value | % of book | Change |
|---|---|---|---|---|---|
| MTZ MASTEC INC | Industrials | 160.2K | $51.5M | 9.4% | -4.4% |
| EME EMCOR GROUP INC | Industrials | 58.4K | $43.1M | 7.9% | -3.3% |
| AVGO BROADCOM INC | Technology | 92.6K | $28.7M | 5.2% | -2.2% |
| GOOGL ALPHABET INC-CL A | Technology | 89.5K | $25.7M | 4.7% | -0.7% |
| AZO AUTOZONE INC | Consumer discretionary | 7.4K | $25.0M | 4.5% | -5.0% |
| VST VISTRA CORP | Utilities | 163.3K | $24.5M | 4.5% | -2.3% |
| RSG REPUBLIC SERVICES INC | Utilities | 88.5K | $19.4M | 3.5% | +0.3% |
| MKL MARKEL GROUP INC | Financials | 8.1K | $15.5M | 2.8% | +0.1% |
| CIGI COLLIERS INTL GR-SUBORD VOT | Real estate | 138.7K | $14.8M | 2.7% | +1.7% |
| CP CANADIAN PACIFIC KANSAS CITY | Industrials | 171.1K | $13.5M | 2.5% | +4.1% |
| SSNC SS&C TECHNOLOGIES HOLDINGS | Technology | 187.6K | $12.7M | 2.3% | +0.1% |
| MPC MARATHON PETROLEUM CORP | Energy | 50.0K | $12.2M | 2.2% | +0.2% |
| XOM EXXON MOBIL CORP | Energy | 71.0K | $12.0M | 2.2% | +2.3% |
| RPRX ROYALTY PHARMA PLC- CL A | Healthcare | 237.9K | $11.4M | 2.1% | New |
| DLTR DOLLAR TREE INC | Consumer discretionary | 104.1K | $11.4M | 2.1% | -0.7% |
| GNRC GENERAC HOLDINGS INC | Industrials | 57.9K | $11.3M | 2.1% | +6.8% |
| BN BROOKFIELD CORP | Real estate | 273.8K | $11.1M | 2.0% | +2.5% |
| APG API GROUP CORP | Services media | 272.7K | $11.1M | 2.0% | -0.2% |
| MOG/A MOOG INC-CLASS A | Industrials | 36.9K | $10.8M | 2.0% | +7.0% |
| BCO BRINK'S CO/THE | Industrials | 96.4K | $10.0M | 1.8% | +1.6% |
| LRN STRIDE INC | Services media | 102.5K | $9.0M | 1.6% | +0.5% |
| GXO GXO LOGISTICS INC | Industrials | 173.0K | $9.0M | 1.6% | +5.3% |
| LYV LIVE NATION ENTERTAINMENT IN | Services media | 49.2K | $7.5M | 1.4% | +0.5% |
| VC VISTEON CORP | Industrials | 70.1K | $6.4M | 1.2% | 0.0% |
| ICUI ICU MEDICAL INC | Healthcare | 44.2K | $5.7M | 1.0% | +18.4% |
| KMX CARMAX INC | Consumer discretionary | 125.5K | $5.2M | 1.0% | +12.4% |
| AMRZ AMRIZE LTD | Industrials | 90.6K | $5.1M | 0.9% | +0.9% |
| SARO STANDARDAERO INC | Industrials | 195.5K | $5.1M | 0.9% | New |
| BJ BJ'S WHOLESALE CLUB HOLDINGS | Consumer discretionary | 51.1K | $5.0M | 0.9% | +1.5% |
| CROX CROCS INC | Other | 57.4K | $4.8M | 0.9% | +17.4% |
| CXT CRANE NXT CO | Industrials | 112.2K | $4.6M | 0.8% | +15.7% |
| ATEX ANTERIX INC | Communications | 113.8K | $4.3M | 0.8% | +13.3% |
| CHRW C.H. ROBINSON WORLDWIDE INC | Industrials | 21.2K | $3.5M | 0.6% | New |
| AEBI AEBI SCHMIDT HOLDING AG | Industrials | 352.2K | $3.4M | 0.6% | +2.1% |
| BAM BROOKFIELD ASSET MGMT-A | Financials | 58.9K | $2.6M | 0.5% | +14.3% |
| PTON PELOTON INTERACTIVE INC-A | Other | 483.5K | $2.1M | 0.4% | +9.1% |
| LLY ELI LILLY & CO | Healthcare | 2.1K | $1.9M | 0.4% | -0.2% |
| ET ENERGY TRANSFER LP | Utilities | 96.8K | $1.9M | 0.3% | -2.3% |
| CMI CUMMINS INC | Industrials | 1.4K | $742K | 0.1% | -7.1% |
| OFIX ORTHOFIX MEDICAL INC | Healthcare | 39.5K | $453K | 0.1% | Held |
| AVNW AVIAT NETWORKS INC | Technology | 18.6K | $421K | 0.1% | Held |
| AAPL APPLE INC | Technology | 1.6K | $399K | 0.1% | Held |
| SKWD SKYWARD SPECIALTY INSURANCE | Financials | 8.8K | $384K | 0.1% | Held |
| CAT CATERPILLAR INC | Industrials | 440 | $312K | 0.1% | Held |
| HD HOME DEPOT INC | Consumer discretionary | 844 | $278K | 0.1% | Held |
| ABBV ABBVIE INC | Healthcare | 1.3K | $273K | 0.0% | Held |
| AMZN AMAZON.COM INC | Consumer discretionary | 1.2K | $241K | 0.0% | +5.4% |
13F filing history
| Period | Form | Filed | Entries | Reported value | Flags | Source |
|---|---|---|---|---|---|---|
| Q1 2026 | 13F-HR | Apr 17, 2026 | 57 | $548.7M | canonical | SEC ↗ |
| Q4 2025 | 13F-HR | Jan 26, 2026 | 58 | $523.2M | canonical | SEC ↗ |
| Q3 2025 | 13F-HR | Oct 14, 2025 | 57 | $553.9M | canonical | SEC ↗ |
| Q2 2025 | 13F-HR | Jul 16, 2025 | 55 | $505.7M | canonical | SEC ↗ |
| Q1 2025 | 13F-HR | Apr 23, 2025 | 54 | $431.1M | canonical | SEC ↗ |
| Q4 2024 | 13F-HR | Jan 23, 2025 | 57 | $462.2M | canonical | SEC ↗ |
| Q3 2024 | 13F-HR | Oct 17, 2024 | 54 | $447.8M | canonical | SEC ↗ |
| Q2 2024 | 13F-HR | Jul 22, 2024 | 56 | $415.6M | canonical | SEC ↗ |
| Q1 2024 | 13F-HR | Apr 23, 2024 | 54 | $414.7M | canonical | SEC ↗ |
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