Top Institutional Investors

KIRR MARBACH & CO LLC /IN/ — 13F Holdings & Portfolio

CIK 764112 · latest 13F-HR filed 2026-10-20

Backtest portfolio

KIRR MARBACH & CO LLC /IN/ manages $529.5M in 13F-reported U.S. long-equity assets across 57 reported positions as of its 2026-09-30 13F-HR filing. Its largest disclosed positions are EME (7.93%), AVGO (6.10%), GOOGL (5.78%). Quarter over quarter (versus its 2026-06-30 filing) the fund opened 5 new positions and exited 5; 7 existing positions rose in reported value and 27 fell.

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.

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AUM
$529.5M

Long-equity book

Holdings
57

Distinct positions

Period
2026-09-30

Filed 2026-10-20

Q/Q Activity
+5 / −5 / ↑7 / ↓27

vs 2026-06-30

Portfolio charts

Latest quarter's book, what changed, and how the portfolio has evolved across filings.

Portfolio map

Q3 26
EME7.9% · -4%AVGO6.1% · -1%GOOGL5.8% · -1%MTZ5.3% · -2%VST4.2% · -1%AZO3.9% · -1%BSCQ3.5% · -4%RSG3.4% · -1%BSCR2.9% · +3%MOG.A2.8% · +1%CP2.7% · -1%SSNC2.7% · -0%RPRX2.6% · -0%MKL2.6% · -1%BSCS2.5% · +5%BSCT2.5% · +8%BSCU2.4% · +13%CIGI2.3% · -1%DLTR2.2% · -1%BSCV2.2% · +48%MFP2.0% · newAPG2.0% · -1%BN1.9% · -1%GNRC1.8% · -22%BCO1.8% · -1%MPC1.8% · -53%ATEX1.7% · +0%LYV1.6% · -1%LRN1.5% · -1%GXO1.5% · -0%ICUI1.4% · +1%CROX1.3% · +0%VC1.1% · -1%CXT1.1% · +4%SARO0.9% · +1%XOM0.9% · -0%BOOT0.8% · +4%AEBI0.7% · -0%CHRW0.6% · +1%BAM0.6% · +2%PTON0.5% · +1%LLY0.5% · 0%ET0.3% · -3%CMI0.2% · +1%TY0.1% · 0%QQQ0.1% · 0%IWR0.1% · newAAPL0.1% · 0%SKWD0.1% · 0%IVV0.1% · -8%RSP0.1% · 0%CAT0.1% · 0%ABBV0.1% · 0%AMZN0.1% · 0%TSLA0.0% · newHD0.0% · 0%MSFT0.0% · new

Box size = position value; colour = change in share count vs the prior quarter (green added, red trimmed, blue new). Rows split across managers or share classes are combined. Click a box for the stock.

Sector mix

% of 13F value

Sectors from each company's SIC code; funds and ETFs grouped separately.

Biggest buys and sells

Q2 26 → Q3 26

Estimated from the change in shares held × the quarter-end price, so price moves alone don't count as buying. New and exited positions are included.

13F assets and positions

4 quarters

Total reported 13F value (bars) and number of positions (line) each quarter. Value changes include market moves.

Top positions over time

reported value

The eight largest current positions, valued at each quarter end.

Concentration

top 10 = 45.8%

Cumulative share of the portfolio held in the largest N positions.

Firm Profile & Key People

Name Title / Status Ownership Type

Quarter-over-quarter changes

Changes in reported position value vs the prior 13F, so price moves count too, not just shares bought or sold.

Top Adds (vs prior quarter)

Show all 7 →

Top Trims

Show all 27 →

New Positions

Show all 5 →

Exited Positions

Show all 5 →

KIRR MARBACH & CO LLC /IN/ Holdings (2026-09-30)

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 EMCOR GROUP INC EME 29084Q100 $42.0M 7.93% 55,669 SH
2 BROADCOM INC AVGO 11135F101 $32.3M 6.10% 91,901 SH
3 ALPHABET INC GOOGL 02079K305 $30.6M 5.78% 88,969 SH
4 MASTEC INC MTZ 576323109 $28.1M 5.31% 131,521 SH
5 VISTRA CORP VST 92840M102 $22.3M 4.22% 161,493 SH
6 AUTOZONE INC AZO 053332102 $20.5M 3.87% 7,244 SH
7 INVESCO EXCH TRD SLF IDX FD BSCQ 46138J791 $18.5M 3.49% 947,721 SH
8 REPUBLIC SVCS INC RSG 760759100 $17.9M 3.37% 85,134 SH
9 INVESCO EXCH TRD SLF IDX FD BSCR 46138J783 $15.1M 2.86% 774,355 SH
10 MOOG INC MOG.A 615394202 $14.9M 2.82% 39,156 SH
11 CANADIAN PACIFIC KANSAS CITY CP 13646K108 $14.5M 2.74% 170,167 SH
12 SS&C TECH HLDGS SSNC 78467J100 $14.4M 2.72% 186,686 SH
13 ROYALTY PHARMA PLC RPRX G7709Q104 $14.0M 2.64% 239,136 SH
14 MARKEL GROUP INC MKL 570535104 $13.8M 2.61% 8,073 SH
15 INVESCO EXCH TRD SLF IDX FD BSCS 46138J643 $13.5M 2.54% 669,038 SH
16 INVESCO EXCH TRD SLF IDX FD BSCT 46138J577 $13.3M 2.51% 729,385 SH
17 INVESCO EXCH TRD SLF IDX FD BSCU 46138J460 $12.6M 2.38% 780,696 SH
18 COLLIERS INTL GROUP INC CIGI 194693107 $12.4M 2.34% 138,160 SH
19 DOLLAR TREE INC DLTR 256746108 $11.8M 2.23% 103,619 SH
20 INVESCO EXCH TRD SLF IDX FD BSCV 46138J429 $11.4M 2.15% 722,997 SH
21 MIDERA FOOD PROCESSING INC MFP 59739R104 $10.7M 2.03% 263,172 SH
22 API GROUP CORP APG 00187Y100 $10.4M 1.97% 270,400 SH
23 BROOKFIELD CORP BN 11271J107 $9.9M 1.86% 270,691 SH
24 GENERAC HLDGS INC GNRC 368736104 $9.7M 1.83% 46,783 SH
25 BRINKS CO BCO 109696104 $9.6M 1.82% 95,436 SH
26 MARATHON PETE CORP MPC 56585A102 $9.4M 1.77% 23,661 SH
27 ANTERIX INC ATEX 03676C100 $9.1M 1.73% 116,554 SH
28 LIVE NATION ENTERTAINMENT IN LYV 538034109 $8.3M 1.56% 48,761 SH
29 STRIDE INC LRN 86333M108 $8.0M 1.50% 102,038 SH
30 GXO LOGISTICS INCORPORATED GXO 36262G101 $7.8M 1.48% 176,283 SH
31 ICU MED INC ICUI 44930G107 $7.3M 1.38% 45,641 SH
32 CROCS INC CROX 227046109 $6.7M 1.27% 57,494 SH
33 VISTEON CORP VC 92839U206 $6.0M 1.13% 69,070 SH
34 CRANE NXT CO CXT 224441105 $5.7M 1.07% 120,500 SH
35 STANDARDAERO INC SARO 85423L103 $4.9M 0.93% 231,382 SH
36 EXXONMOBIL HOLDINGS CORP XOM 30233Q108 $4.9M 0.93% 30,352 SH
37 BOOT BARN HLDGS INC BOOT 099406100 $4.3M 0.82% 36,000 SH
38 AEBI SCHMIDT HLDG AG AEBI H00501108 $3.7M 0.70% 349,129 SH
39 C H ROBINSON WORLDWIDE IN CHRW 12541W209 $3.2M 0.60% 21,343 SH
40 BROOKFIELD ASSET MANAGMT LTD BAM 113004105 $2.9M 0.55% 65,688 SH
41 PELOTON INTERACTIVE INC PTON 70614W100 $2.5M 0.46% 491,557 SH
42 ELI LILLY & CO LLY 532457108 $2.4M 0.46% 2,113 SH
43 ENERGY TRANSFER L P ET 29273V100 $1.8M 0.35% 92,718 SH
44 CUMMINS INC CMI 231021106 $943.3K 0.18% 1,826 SH
45 TRI CONTL CORP TY 895436103 $682.7K 0.13% 19,882 SH
46 INVESCO QQQ TR QQQ 46090E103 $555.4K 0.10% 750 SH
47 ISHARES TR IWR 464287499 $533.5K 0.10% 5,000 SH
48 APPLE INC AAPL 037833100 $519.4K 0.10% 1,560 SH
49 SKYWARD SPECIALTY INS GROUP SKWD 830940102 $463.9K 0.09% 8,786 SH
50 ISHARES TR IVV 464287200 $459.5K 0.09% 600 SH
Filing History
Period Filed AUM Holdings Accession
2026-09-30 2026-10-20 $529.5M 57 0000764112-26-000006
2026-06-30 2026-07-14 $593.8M 57 0000764112-26-000003
2026-03-31 2026-04-17 $548.7M 57 0000764112-26-000002
2025-12-31 2026-01-26 $523.2M 58 0000764112-26-000001
Filer Information
Address
621 WASHINGTON STREET
COLUMBUS, IN 47201
Phone
(812) 376-9444
Filing Manager
KIRR MARBACH & CO LLC /IN/
COLUMBUS, IN
Signatory
Mickey Kim
Chief Compliance Officer