Kirr Marbach & Co LLC reported 46 positions worth $442.53M for the quarter ended Sep 30, 2026, down 13.7% on the prior quarter. It opened 3 new positions, added to 11, trimmed 25 and exited 4. Its largest holding is EMCOR Group, Inc. at 9.5% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MFP Midera Food Processing, Inc. | +263.2K | – | $10.74M | 2.43% |
| TSLA Tesla, Inc. | +725 | – | $257.37K | 0.058% |
| CXT Crane NXT, Co. | +4,688 | +4.0% | $220.80K | 1.28% |
| MSFT Microsoft Corp | +410 | – | $210.29K | 0.048% |
| BOOT Boot Barn Holdings, Inc. | +1,445 | +4.2% | $174.08K | 0.98% |
| MOG-A Moog Inc. | +436 | +1.1% | $166.32K | 3.38% |
| BAM Brookfield Asset Management Ltd. | +1,442 | +2.2% | $64.28K | 0.662% |
| ICUI Icu Medical Inc | +287 | +0.6% | $46.07K | 1.66% |
| ATEX Anterix Inc. | +485 | +0.4% | $38.07K | 2.07% |
| PTON Peloton Interactive, Inc. | +6,992 | +1.4% | $34.89K | 0.554% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MPC Marathon Petroleum Corp | -26.3K | -52.6% | $10.39M | 2.11% |
| AMRZ Amrize Ltd | -91.0K | -100.0% | $4.85M | Exited |
| BJ BJ's Wholesale Club Holdings, Inc. | -48.7K | -100.0% | $4.25M | Exited |
| GNRC Generac Holdings Inc. | -13.3K | -22.2% | $2.76M | 2.19% |
| EME EMCOR Group, Inc. | -2,290 | -4.0% | $1.73M | 9.49% |
| MTZ Mastec Inc | -2,205 | -1.6% | $471.03K | 6.35% |
| OFIX Orthofix Medical Inc. | -39.5K | -100.0% | $360.68K | Exited |
| GLW Corning Inc | -1,000 | -100.0% | $255.43K | Exited |
| RSG Republic Services, Inc. | -1,197 | -1.4% | $251.21K | 4.04% |
| AZO Autozone Inc | -83 | -1.1% | $234.89K | 4.63% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | EME EMCOR Group, Inc. | Industrials | 55.7K | $42.00M | 9.49% | -2,290 | -4.0% | Reduced | 0.13% |
| 2 | AVGO Broadcom Inc. | Technology | 91.9K | $32.27M | 7.29% | -532 | -0.6% | Reduced | 0% |
| 3 | GOOGL Alphabet Inc. | Technology | 89.0K | $30.61M | 6.92% | -583 | -0.7% | Reduced | 0% |
| 4 | MTZ Mastec Inc | Industrials | 131.5K | $28.10M | 6.35% | -2,205 | -1.6% | Reduced | 0.16% |
| 5 | VST Vistra Corp. | Utilities | 161.5K | $22.34M | 5.05% | -1,403 | -0.9% | Reduced | 0.05% |
| 6 | AZO Autozone Inc | Consumer Discretionary | 7,244 | $20.50M | 4.63% | -83 | -1.1% | Reduced | 0.04% |
| 7 | RSG Republic Services, Inc. | Industrials | 85.1K | $17.87M | 4.04% | -1,197 | -1.4% | Reduced | 0.03% |
| 8 | MOG-A Moog Inc. | Industrials | 39.2K | $14.94M | 3.38% | +436 | +1.1% | Added | 0.14% |
| 9 | CP Canadian Pacific Kansas City Ltd | Industrials | 170.2K | $14.51M | 3.28% | -954 | -0.6% | Reduced | 0.02% |
| 10 | SSNC SS&C Technologies Holdings Inc | Technology | 186.7K | $14.39M | 3.25% | -702 | -0.4% | Reduced | 0.08% |
| 11 | RPRX Royalty Pharma plc | Financial Services | 239.1K | $13.96M | 3.15% | -325 | -0.1% | Reduced | 0.05% |
| 12 | MKL Markel Group Inc. | Financial Services | 8,073 | $13.82M | 3.12% | -57 | -0.7% | Reduced | 0.07% |
| 13 | CIGI Colliers International Group Inc. | Real Estate | 138.2K | $12.41M | 2.8% | -838 | -0.6% | Reduced | 0.27% |
| 14 | DLTR Dollar Tree, Inc. | Consumer Staples | 103.6K | $11.81M | 2.67% | -713 | -0.7% | Reduced | 0.05% |
| 15 | MFP Midera Food Processing, Inc. | Industrials | 263.2K | $10.74M | 2.43% | +263.2K | – | New | 0.58% |
Tip. Select a row to see that position’s full history at Kirr Marbach.
As of its Q3 2026 13F filing, Kirr Marbach & Co LLC’s five largest positions were EMCOR Group, Inc. (EME) at 9.5%, Broadcom Inc. (AVGO) at 7.3%, Alphabet Inc. (GOOGL) at 6.9%, Mastec Inc (MTZ) at 6.3%, Vistra Corp. (VST) at 5.0% of the reported portfolio.
Kirr Marbach & Co LLC reported a 13F portfolio worth $442.53M across 46 positions for Q3 2026. That is down 13.7% from the previous quarter.
Its largest purchases by value were Midera Food Processing, Inc. ($10.74M), Tesla, Inc. ($257.37K), Crane NXT, Co. ($220.80K). It opened 3 new positions.
Its largest sales by value were Marathon Petroleum Corp ($10.39M), Amrize Ltd ($4.85M), BJ's Wholesale Club Holdings, Inc. ($4.25M). It exited 4 positions entirely.
From the Form 13F-HR reports Kirr Marbach & Co LLC files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.