Mountain Pacific Investment Advisers LLC

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 30, 2025), Mountain Pacific Investment Advisers LLC reported 144 stock positions worth $639.0 million. Its top holding was Amphenol Class A (APH) at 9.3% of the portfolio, followed by Ametek (AME, 5.6%) and Fiserv (FISV, 5.1%). Compared with Q2 2025, it opened 5 new positions, added to 10 and reduced 81. The biggest buy was US Bancorp (USB, shares +15%) and the biggest sale Comfort Systems USA (FIX, shares −87%).

Most Recent 13F
Q2 2026
Location
BOISE, ID
CIK
0001067324
Portfolio Value
$639.0M (Q3 2025)
SEC Filing
0001067324-25-000009 ↗ filed Oct 30, 2025

Holdings Value

0$500.0M$1.0B$1.5B$2.0B Q1 2024: $1.8B Q1 2024 Q2 2024: $1.3B Q2 2024 Q3 2024: $1.5B Q3 2024 Q4 2024: $1.4B Q4 2024 Q1 2025: $1.3B Q1 2025 Q2 2025: $1.4B Q2 2025 Q3 2025: $639.0M $639.0M Q3 2025 Q4 2025: $617.1M Q4 2025 Q1 2026: $583.7M Q1 2026 Q2 2026: $635.4M Q2 2026

Holdings 144 stocks · $639.0M
APH Amphenol Corp. Class A 9.26% 478,038 $59.2M Reduce -50.3%
AME Ametek Inc. 5.64% 191,686 $36.0M Reduce -46.1%
FISV Fiserv Inc. 5.07% 251,507 $32.4M Reduce -40.9%
DHR Danaher Corp. 4.04% 130,269 $25.8M Reduce -36.1%
AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO 3.63% 74,916 $23.2M Reduce -57.4%
ROP Roper Technologies Inc. 3.18% 40,792 $20.3M Reduce -52.7%
XYL Xylem Inc. 3.14% 135,919 $20.0M Reduce -56.3%
IEX Idex Corp. 3.09% 121,238 $19.7M Reduce -49.8%
TMO Thermo Fisher Scientific Inc. 3.03% 39,906 $19.4M Reduce -0.7%
ATR Aptargroup Inc. 2.84% 135,696 $18.1M Reduce -55.2%
VRT Vertiv Holdings Co. Class A 2.68% 113,670 $17.1M Reduce -71.4%
DCI Donaldson Co. Inc. 2.39% 186,801 $15.3M Reduce -56.3%
VRSK Verisk Analytics Inc. 2.37% 60,224 $15.1M Reduce -62.1%
GGG Graco Inc. 2.12% 159,108 $13.5M Reduce -63.5%
BSV Vanguard Short-Term Bond ETF 1.99% 160,859 $12.7M Reduce -7.6%
RPM RPM International Inc. 1.69% 91,765 $10.8M Reduce -61.6%
FIS Fidelity National Info Serv 1.64% 159,154 $10.5M Reduce -54.5%
FAST Fastenal Co. 1.56% 202,726 $9.9M Reduce -73.5%
NDSN Nordson Corp. 1.47% 41,387 $9.4M Reduce -69.7%
COST Costco Wholesale Corp. 1.46% 10,068 $9.3M Reduce -0.1%
ECL Ecolab Inc. 1.44% 33,545 $9.2M Reduce -0.8%
NVT Nvent Electric PLC 1.40% 90,867 $9.0M Reduce -56.7%
FIX Comfort Systems USA Inc. 1.29% 9,952 $8.2M Reduce -87.1%
RBC RBC Bearings Inc. 1.19% 19,470 $7.6M Reduce -78.3%
CHD Church & Dwight Co. Inc. 1.16% 84,408 $7.4M Reduce -70.4%
VCSH Vanguard S/T Corp. Bond ETF 1.14% 91,510 $7.3M Reduce -3.7%
LSTR Landstar System Inc. 1.14% 59,204 $7.3M Reduce -67.1%
JPM JPMorgan Chase & Co. 1.08% 21,857 $6.9M Reduce -0.9%
AIZ Assurant Inc. 1.07% 31,445 $6.8M Reduce -79.3%
SPGI S&P Global Inc. 1.06% 13,926 $6.8M Reduce -2.7%
MSFT Microsoft Corp. 0.99% 12,224 $6.3M Reduce -0.6%
VLTO Veralto Corp. 0.91% 54,274 $5.8M Reduce -2.0%
CLH Clean Harbors Inc. 0.82% 22,554 $5.2M Reduce -78.9%
FTV Fortive Corp. 0.81% 105,943 $5.2M Reduce -50.4%
MSA Msa Safety Inc. 0.73% 27,041 $4.7M Reduce -80.3%
XOM Exxon Mobil Corp. 0.66% 37,498 $4.2M No change
CSW CSW Industrials Inc. 0.64% 16,731 $4.1M Reduce -81.5%
PNR Pentair PLC 0.62% 35,938 $4.0M Reduce -5.2%
AAPL Apple Inc. 0.62% 15,584 $4.0M Reduce -15.1%
FCN Fti Consulting Inc. 0.60% 23,637 $3.8M Reduce -77.8%
ADP Automatic Data Processing 0.58% 12,631 $3.7M Reduce -2.3%
ABBV Abbvie Inc. 0.57% 15,643 $3.6M Reduce -4.1%
UFPT Ufp Technologies Inc. 0.54% 17,394 $3.5M Reduce -82.4%
KAI Kadant Inc. 0.52% 11,208 $3.3M Reduce -80.1%
USB US Bancorp 0.52% 68,856 $3.3M Add +15.3%
ABT Abbott Laboratories 0.52% 24,590 $3.3M Reduce -3.1%
BND Vanguard Total Bond Market 0.50% 42,729 $3.2M Reduce -7.5%
VGSH Vanguard Short-Term Treasury 0.47% 50,707 $3.0M Reduce -3.4%
AIT Applied Industrial Tech Inc. 0.46% 11,203 $2.9M Reduce -81.7%
JNJ Johnson & Johnson 0.44% 15,275 $2.8M Reduce -5.7%
WAT Waters Corp. 0.41% 8,691 $2.6M Reduce -2.3%
LRN Stride Inc. 0.39% 16,802 $2.5M Reduce -54.9%
ITW Illinois Tool Works 0.39% 9,501 $2.5M Reduce -0.6%
GNRC Generac Holdings Inc. 0.38% 14,498 $2.4M Reduce -0.2%
SNA Snap-on Inc. 0.36% 6,652 $2.3M Reduce -7.3%
VUSB Vanguard Ultra Short Bond Et 0.36% 45,885 $2.3M Reduce -15.0%
WINA Winmark Corp. 0.35% 4,532 $2.3M Reduce -86.6%
WMT Walmart Inc. 0.35% 21,690 $2.2M No change
MU Micron Technology Inc. 0.33% 12,622 $2.1M No change
PG The Procter & Gamble Co. 0.32% 13,486 $2.1M Reduce -1.4%
RRX Regal Rexnord Corp. 0.30% 13,393 $1.9M Reduce -2.3%
RSP Invesco S&P 500 Equal Weight 0.30% 9,977 $1.9M Add +6.1%
PRGS Progress Software Corp. 0.29% 42,658 $1.9M Reduce -81.3%
CBSH Commerce Bancshares Inc. 0.28% 30,024 $1.8M Reduce -0.5%
AMGN Amgen Inc. 0.27% 6,224 $1.8M Reduce -2.4%
WAY Waystar Holding Corp. 0.26% 44,554 $1.7M New
VNT Vontier Corp. 0.26% 39,715 $1.7M Reduce -1.6%
WAB Wabtec Corp. 0.25% 8,060 $1.6M No change
BRK.A Berkshire Hathaway Inc. Class A 0.24% 2 $1.5M No change
ZBRA Zebra Technologies Corp. Class A 0.23% 4,985 $1.5M Reduce -0.5%
SPY SS SPDR S&P 500 ETF Trust-US 0.22% 2,123 $1.4M Add +0.1%
ROST Ross Stores Inc. 0.22% 9,200 $1.4M No change
TFX Teleflex Inc. 0.22% 11,354 $1.4M Reduce -0.8%
CNMD Conmed Corp. 0.20% 27,764 $1.3M Reduce -80.1%
WFC Wells Fargo & Co. 0.20% 15,476 $1.3M Add +7.9%
RTX RTX Corp. 0.19% 7,414 $1.2M Reduce -9.7%
ETN Eaton Corp. PLC 0.19% 3,259 $1.2M Reduce -5.1%
HD Home Depot Inc. 0.18% 2,869 $1.2M No change
BIV Vanguard Intermediate-Term B 0.17% 14,110 $1.1M Add +2.6%
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.16% 3,696 $1.0M Add +0.7%
CAT Caterpillar Inc. 0.16% 2,153 $1.0M No change
COF Capital One Financial Corp. 0.15% 4,651 $989K No change
VTI VG Morningstar TS MKT ETF-US 0.14% 2,751 $903K No change
BRK.B Berkshire Hathaway Inc. Class B 0.13% 1,658 $834K No change
V Visa Inc. Class A 0.13% 2,441 $833K No change
AMAT Applied Materials Inc. 0.13% 4,010 $821K No change
FITB Fifth Third Bancorp 0.13% 18,200 $811K No change
ACIW Aci Worldwide Inc. 0.12% 15,091 $796K Reduce -3.6%
AWK American Water Works Co. Inc. 0.12% 5,700 $793K Reduce -3.4%
MTB M & T Bank Corp. filed as M & T BK CORP 0.12% 3,787 $748K No change
MCD McDonald's Corp. 0.12% 2,421 $736K Add +0.5%
CHRW C.H. Robinson Worldwide Inc. 0.11% 5,500 $728K No change
RY Royal Bank of Canada 0.11% 4,749 $700K No change
TSLA Tesla Inc. 0.11% 1,558 $693K Reduce -5.5%
PEP Pepsico Inc. 0.10% 4,733 $665K Reduce -7.5%
SIGI Selective Insurance Group 0.10% 7,961 $645K Reduce -1.1%
LLY Eli Lilly & Co. 0.10% 844 $644K No change
VOO Vanguard S&P 500 ETF 0.10% 1,030 $631K No change
MSM MSC Industrial Direct Co. Class A 0.09% 6,203 $572K No change
MMSI Merit Medical Systems Inc. 0.09% 6,848 $570K Reduce -92.7%

Show all 144 holdings

Portfolio Sells Q2 2025 → Q3 2025
FIX Comfort Systems USA Inc. Reduce -87.1% 1.29% −1.71
RBC RBC Bearings Inc. Reduce -78.3% 1.19% −1.31
CSW CSW Industrials Inc. Reduce -81.5% 0.64% −1.24
VRSK Verisk Analytics Inc. Reduce -62.1% 2.37% −1.22
UFPT Ufp Technologies Inc. Reduce -82.4% 0.54% −1.21
AIZ Assurant Inc. Reduce -79.3% 1.07% −1.11
VRT Vertiv Holdings Co. Class A Reduce -71.4% 2.68% −1.02
CLH Clean Harbors Inc. Reduce -78.9% 0.82% −0.97
MSA Msa Safety Inc. Reduce -80.3% 0.73% −0.94
CHD Church & Dwight Co. Inc. Reduce -70.4% 1.16% −0.83
FAST Fastenal Co. Reduce -73.5% 1.56% −0.78
KAI Kadant Inc. Reduce -80.1% 0.52% −0.78
PRGS Progress Software Corp. Reduce -81.3% 0.29% −0.76
MUSA Murphy USA Inc. Reduce -94.6% 0.09% −0.69
LSTR Landstar System Inc. Reduce -67.1% 1.14% −0.68
NDSN Nordson Corp. Reduce -69.7% 1.47% −0.66
FCN Fti Consulting Inc. Reduce -77.8% 0.60% −0.65
GGG Graco Inc. Reduce -63.5% 2.12% −0.60
ATR Aptargroup Inc. Reduce -55.2% 2.84% −0.60
AIT Applied Industrial Tech Inc. Reduce -81.7% 0.46% −0.57
WINA Winmark Corp. Reduce -86.6% 0.35% −0.57
MMSI Merit Medical Systems Inc. Reduce -92.7% 0.09% −0.55
AJG Arthur J Gallagher & Co. Reduce -57.4% 3.63% −0.46
FIS Fidelity National Info Serv Reduce -54.5% 1.64% −0.42
ROP Roper Technologies Inc. Reduce -52.7% 3.18% −0.36
CNMD Conmed Corp. Reduce -80.1% 0.20% −0.32
MOD Modine Manufacturing Co. Reduce -94.2% 0.07% −0.31
FISV Fiserv Inc. Reduce -40.9% 5.07% −0.25
RPM RPM International Inc. Reduce -61.6% 1.69% −0.21
RAL Ralliant Corp. Reduce -89.7% 0.05% −0.20
LRN Stride Inc. Reduce -54.9% 0.39% −0.00
FTV Fortive Corp. Reduce -50.4% 0.81% +0.00
IEX Idex Corp. Reduce -49.8% 3.09% +0.01
CARR Carrier Global Corp. Reduce -11.2% 0.06% +0.02
MA Mastercard Inc. Class A Reduce -3.0% 0.05% +0.03
GBCI Glacier Bancorp Inc. Reduce -25.7% 0.07% +0.03
TRV The Travelers Cos Inc. Reduce -8.0% 0.08% +0.04
AXP American Express Co. Reduce -8.5% 0.08% +0.04
SIGI Selective Insurance Group Reduce -1.1% 0.10% +0.05
NVDA Nvidia Corp. Reduce -3.2% 0.09% +0.05
PEP Pepsico Inc. Reduce -7.5% 0.10% +0.06
AWK American Water Works Co. Inc. Reduce -3.4% 0.12% +0.06
TSLA Tesla Inc. Reduce -5.5% 0.11% +0.07
ACIW Aci Worldwide Inc. Reduce -3.6% 0.12% +0.07
ETN Eaton Corp. PLC Reduce -5.1% 0.19% +0.10
RTX RTX Corp. Reduce -9.7% 0.19% +0.11
TFX Teleflex Inc. Reduce -0.8% 0.22% +0.12
ZBRA Zebra Technologies Corp. Class A Reduce -0.5% 0.23% +0.12
CBSH Commerce Bancshares Inc. Reduce -0.5% 0.28% +0.14
AMGN Amgen Inc. Reduce -2.4% 0.27% +0.15

Portfolio Buys Q2 2025 → Q3 2025
USB US Bancorp Add +15.3% 0.52% +0.32
WAY Waystar Holding Corp. New 0.26% +0.26
RSP Invesco S&P 500 Equal Weight Add +6.1% 0.30% +0.17
SPY SS SPDR S&P 500 ETF Trust-US Add +0.1% 0.22% +0.13
WFC Wells Fargo & Co. Add +7.9% 0.20% +0.12
BIV Vanguard Intermediate-Term B Add +2.6% 0.17% +0.10
IBM Intl Business Machines Corp. Add +0.7% 0.16% +0.08
MCD McDonald's Corp. Add +0.5% 0.12% +0.06
GOOGL Alphabet Inc. Class A Add +0.9% 0.07% +0.05
HON Honeywell International Inc. Add +0.5% 0.09% +0.04
INTC Intel Corp. New 0.04% +0.04
ORCL Oracle Corp. New 0.03% +0.03
IWB iShares Russell 1000 ETF New 0.03% +0.03
IDA Idacorp Inc. New 0.03% +0.03
CSCO Cisco Systems Inc. Add +1.1% 0.06% +0.03

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 146$635.4MAPH, AME, VRT, IEX, DHR
Q1 2026 141$583.7MAPH, AME, DHR, IEX, VRT
Q4 2025 144$617.1MAPH, AME, DHR, TMO, IEX
Q3 2025 144$639.0MAPH, AME, FISV, DHR, AJG
Q2 2025 139$1.4BAPH, FISV, AME, AJG, VRT
Q1 2025 140$1.3BFISV, APH, AME, AJG, ROP
Q4 2024 136$1.4BFISV, APH, AME, AJG, IEX
Q3 2024 142$1.5BFISV, APH, AME, DHR, AJG
Q2 2024 138$1.3BAPH, FISV, AME, DHR, AJG
Q1 2024 139$1.8BAPH, VRT, AME, FISV, IEX