KIRR MARBACH & CO LLC /IN/ — 13F Holdings & Portfolio
CIK 764112 · latest 13F-HR filed 2026-04-17
KIRR MARBACH & CO LLC /IN/ manages $548.7M in 13F-reported U.S. long-equity assets across 57 reported positions as of its 2026-03-31 13F-HR filing. Its largest disclosed positions are MTZ (9.39%), EME (7.85%), AVGO (5.23%). Quarter over quarter (versus its 2025-12-31 filing) the fund opened 3 new positions, exited 4, added to 18, and trimmed 17.
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.
$548.7M
Long-equity book
57
Distinct positions
2026-03-31
Filed 2026-04-17
+3 / −4 / ↑18 / ↓17
vs 2025-12-31
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- MASTEC INC$15.1M +41.5%
- EMCOR GROUP INC$6.2M +16.7%
- MARATHON PETE CORP$4.1M +50.5%
- GENERAC HLDGS INC$3.9M +53.0%
- EXXON MOBIL CORP$3.7M +44.2%
Top Trims
- COLLIERS INTL GROUP INC-$5.2M -26.1%
- BROADCOM INC-$4.1M -12.6%
- SS&C TECH HLDGS-$3.7M -22.6%
- ALPHABET INC-$2.5M -8.8%
- VISTRA CORP-$2.4M -8.9%
New Positions
- ROYALTY PHARMA PLC$11.4M
- STANDARDAERO INC$5.1M
- C H ROBINSON WORLDWIDE IN$3.5M
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 | MASTEC INC | MTZ | 576323109 | $51.5M | 9.39% | 160,197 | SH |
| 2 | EMCOR GROUP INC | EME | 29084Q100 | $43.1M | 7.85% | 58,351 | SH |
| 3 | BROADCOM INC | AVGO | 11135F101 | $28.7M | 5.23% | 92,636 | SH |
| 4 | ALPHABET INC | GOOGL | 02079K305 | $25.7M | 4.69% | 89,512 | SH |
| 5 | AUTOZONE INC | AZO | 053332102 | $25.0M | 4.55% | 7,387 | SH |
| 6 | VISTRA CORP | VST | 92840M102 | $24.5M | 4.47% | 163,293 | SH |
| 7 | INVESCO EXCH TRD SLF IDX FD | BSCQ | 46138J791 | $20.0M | 3.64% | 1,022,143 | SH |
| 8 | REPUBLIC SVCS INC | RSG | 760759100 | $19.4M | 3.53% | 88,458 | SH |
| 9 | MARKEL GROUP INC | MKL | 570535104 | $15.5M | 2.83% | 8,118 | SH |
| 10 | INVESCO EXCH TRD SLF IDX FD | BSCR | 46138J783 | $15.2M | 2.76% | 772,551 | SH |
| 11 | COLLIERS INTL GROUP INC | CIGI | 194693107 | $14.8M | 2.70% | 138,731 | SH |
| 12 | CANADIAN PACIFIC KANSAS CITY | CP | 13646K108 | $13.5M | 2.46% | 171,095 | SH |
| 13 | INVESCO EXCH TRD SLF IDX FD | BSCS | 46138J643 | $13.2M | 2.40% | 644,876 | SH |
| 14 | INVESCO EXCH TRD SLF IDX FD | BSCT | 46138J577 | $12.7M | 2.31% | 679,457 | SH |
| 15 | SS&C TECH HLDGS | SSNC | 78467J100 | $12.7M | 2.31% | 187,573 | SH |
| 16 | MARATHON PETE CORP | MPC | 56585A102 | $12.2M | 2.22% | 49,984 | SH |
| 17 | EXXON MOBIL CORP | XOM | 30231G102 | $12.0M | 2.20% | 71,020 | SH |
| 18 | INVESCO EXCH TRD SLF IDX FD | BSCU | 46138J460 | $11.5M | 2.10% | 689,400 | SH |
| 19 | ROYALTY PHARMA PLC | RPRX | G7709Q104 | $11.4M | 2.08% | 237,895 | SH |
| 20 | DOLLAR TREE INC | DLTR | 256746108 | $11.4M | 2.08% | 104,125 | SH |
| 21 | GENERAC HLDGS INC | GNRC | 368736104 | $11.3M | 2.06% | 57,926 | SH |
| 22 | BROOKFIELD CORP | BN | 11271J107 | $11.1M | 2.02% | 273,753 | SH |
| 23 | API GROUP CORP | APG | 00187Y100 | $11.1M | 2.01% | 272,711 | SH |
| 24 | MOOG INC | MOG.A | 615394202 | $10.8M | 1.97% | 36,861 | SH |
| 25 | BRINKS CO | BCO | 109696104 | $10.0M | 1.82% | 96,352 | SH |
| 26 | STRIDE INC | LRN | 86333M108 | $9.0M | 1.65% | 102,484 | SH |
| 27 | GXO LOGISTICS INCORPORATED | GXO | 36262G101 | $9.0M | 1.63% | 173,008 | SH |
| 28 | INVESCO EXCH TRD SLF IDX FD | BSCV | 46138J429 | $8.1M | 1.47% | 491,310 | SH |
| 29 | LIVE NATION ENTERTAINMENT IN | LYV | 538034109 | $7.5M | 1.37% | 49,231 | SH |
| 30 | VISTEON CORP | VC | 92839U206 | $6.4M | 1.16% | 70,104 | SH |
| 31 | ICU MED INC | ICUI | 44930G107 | $5.7M | 1.04% | 44,153 | SH |
| 32 | CARMAX INC | KMX | 143130102 | $5.2M | 0.95% | 125,479 | SH |
| 33 | AMRIZE LTD | AMRZ | H2927K103 | $5.1M | 0.93% | 90,631 | SH |
| 34 | STANDARDAERO INC | SARO | 85423L103 | $5.1M | 0.92% | 195,513 | SH |
| 35 | BJS WHSL CLUB HLDGS INC | BJ | 05550J101 | $5.0M | 0.92% | 51,055 | SH |
| 36 | CROCS INC | CROX | 227046109 | $4.8M | 0.87% | 57,422 | SH |
| 37 | CRANE NXT CO | CXT | 224441105 | $4.6M | 0.83% | 112,153 | SH |
| 38 | ANTERIX INC | ATEX | 03676C100 | $4.3M | 0.79% | 113,814 | SH |
| 39 | C H ROBINSON WORLDWIDE IN | CHRW | 12541W209 | $3.5M | 0.64% | 21,194 | SH |
| 40 | AEBI SCHMIDT HLDG AG | AEBI | H00501108 | $3.4M | 0.62% | 352,171 | SH |
| 41 | BROOKFIELD ASSET MANAGMT LTD | BAM | 113004105 | $2.6M | 0.48% | 58,858 | SH |
| 42 | PELOTON INTERACTIVE INC | PTON | 70614W100 | $2.1M | 0.38% | 483,506 | SH |
| 43 | ELI LILLY & CO | LLY | 532457108 | $1.9M | 0.35% | 2,113 | SH |
| 44 | ENERGY TRANSFER L P | ET | 29273V100 | $1.9M | 0.34% | 96,792 | SH |
| 45 | CUMMINS INC | CMI | 231021106 | $741.9K | 0.14% | 1,379 | SH |
| 46 | TRI CONTL CORP | TY | 895436103 | $628.1K | 0.11% | 19,882 | SH |
| 47 | ORTHOFIX MED INC | OFIX | 68752M108 | $452.6K | 0.08% | 39,462 | SH |
| 48 | INVESCO QQQ TR | QQQ | 46090E103 | $432.9K | 0.08% | 750 | SH |
| 49 | ISHARES TR | IVV | 464287200 | $427.2K | 0.08% | 654 | SH |
| 50 | AVIAT NETWORKS INC | AVNW | 05366Y201 | $420.5K | 0.08% | 18,600 | SH |
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-04-17 | $548.7M | 57 | 0000764112-26-000002 |
| 2025-12-31 | 2026-01-26 | $523.2M | 58 | 0000764112-26-000001 |