Mountain Pacific Investment Advisers LLC

In its 13F for Q4 2025 (holdings as of December 31, 2025, filed January 29, 2026), Mountain Pacific Investment Advisers LLC reported 144 stock positions worth $617.1 million. Its top holding was Amphenol Class A (APH) at 9.0% of the portfolio, followed by Ametek (AME, 6.2%) and Danaher (DHR, 4.8%). Compared with Q3 2025, it opened 3 new positions, sold out of 3, added to 18 and reduced 67. The biggest buy was Invesco S&P 500 Equal Weight (RSP, shares +131%) and the biggest sale Arthur J Gallagher (AJG, shares −2%).

Most Recent 13F
Q2 2026
Location
BOISE, ID
CIK
0001067324
Portfolio Value
$617.1M (Q4 2025)
SEC Filing
0001067324-26-000002 ↗ filed Jan 29, 2026

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 Q3 2025 Q4 2025: $617.1M $617.1M Q4 2025 Q1 2026: $583.7M Q1 2026 Q2 2026: $635.4M Q2 2026

Holdings 144 stocks · $617.1M
APH Amphenol Corp. Class A 9.04% 412,730 $55.8M Reduce -13.7%
AME Ametek Inc. 6.24% 187,596 $38.5M Reduce -2.1%
DHR Danaher Corp. 4.79% 129,008 $29.5M Reduce -1.0%
TMO Thermo Fisher Scientific Inc. 3.69% 39,327 $22.8M Reduce -1.4%
IEX Idex Corp. 3.47% 120,375 $21.4M Reduce -0.7%
AJG Arthur J Gallagher & Co. filed as GALLAGHER ARTHUR J & CO 3.09% 73,731 $19.1M Reduce -1.6%
ROP Roper Technologies Inc. 2.99% 41,399 $18.4M Add +1.5%
XYL Xylem Inc. 2.98% 134,881 $18.4M Reduce -0.8%
FISV Fiserv Inc. 2.74% 251,817 $16.9M Add +0.1%
ATR Aptargroup Inc. 2.66% 134,345 $16.4M Reduce -1.0%
DCI Donaldson Co. Inc. 2.65% 184,154 $16.3M Reduce -1.4%
VRT Vertiv Holdings Co. Class A 2.44% 92,920 $15.1M Reduce -18.3%
VRSK Verisk Analytics Inc. 2.26% 62,381 $14.0M Add +3.6%
GGG Graco Inc. 2.06% 155,031 $12.7M Reduce -2.6%
BSV Vanguard Short-Term Bond ETF 2.00% 156,684 $12.3M Reduce -2.6%
FIS Fidelity National Info Serv 1.65% 153,394 $10.2M Reduce -3.6%
NDSN Nordson Corp. 1.58% 40,608 $9.8M Reduce -1.9%
RPM RPM International Inc. 1.52% 90,037 $9.4M Reduce -1.9%
NVT Nvent Electric PLC 1.42% 85,688 $8.7M Reduce -5.7%
ECL Ecolab Inc. 1.41% 33,142 $8.7M Reduce -1.2%
COST Costco Wholesale Corp. 1.40% 9,990 $8.6M Reduce -0.8%
LSTR Landstar System Inc. 1.36% 58,364 $8.4M Reduce -1.4%
RBC RBC Bearings Inc. 1.34% 18,433 $8.3M Reduce -5.3%
FAST Fastenal Co. 1.27% 195,241 $7.8M Reduce -3.7%
VCSH Vanguard S/T Corp. Bond ETF 1.18% 91,125 $7.3M Reduce -0.4%
AIZ Assurant Inc. 1.18% 30,152 $7.3M Reduce -4.1%
FIX Comfort Systems USA Inc. 1.17% 7,740 $7.2M Reduce -22.2%
SPGI S&P Global Inc. 1.14% 13,434 $7.0M Reduce -3.5%
JPM JPMorgan Chase & Co. 1.13% 21,625 $7.0M Reduce -1.1%
CHD Church & Dwight Co. Inc. 1.12% 82,672 $6.9M Reduce -2.1%
MSFT Microsoft Corp. 0.95% 12,059 $5.8M Reduce -1.4%
FTV Fortive Corp. 0.94% 104,863 $5.8M Reduce -1.0%
CLH Clean Harbors Inc. 0.90% 23,658 $5.5M Add +4.9%
VLTO Veralto Corp. 0.88% 54,641 $5.5M Add +0.7%
CSW CSW Industrials Inc. 0.87% 18,203 $5.3M Add +8.8%
MSA Msa Safety Inc. 0.75% 28,793 $4.6M Add +6.5%
XOM Exxon Mobil Corp. 0.73% 37,298 $4.5M Reduce -0.5%
RSP Invesco S&P 500 Equal Weight 0.71% 23,011 $4.4M Add +130.6%
AAPL Apple Inc. 0.64% 14,533 $4.0M Reduce -6.7%
UFPT Ufp Technologies Inc. 0.62% 17,171 $3.8M Reduce -1.3%
USB US Bancorp 0.60% 68,856 $3.7M No change
PNR Pentair PLC 0.58% 34,643 $3.6M Reduce -3.6%
FCN Fti Consulting Inc. 0.58% 20,996 $3.6M Reduce -11.2%
ABBV Abbvie Inc. 0.58% 15,593 $3.6M Reduce -0.3%
MU Micron Technology Inc. 0.56% 11,999 $3.4M Reduce -4.9%
AIT Applied Industrial Tech Inc. 0.53% 12,715 $3.3M Add +13.5%
KAI Kadant Inc. 0.53% 11,422 $3.3M Add +1.9%
ADP Automatic Data Processing 0.52% 12,581 $3.2M Reduce -0.4%
WAT Waters Corp. 0.52% 8,472 $3.2M Reduce -2.5%
ABT Abbott Laboratories 0.50% 24,590 $3.1M No change
JNJ Johnson & Johnson 0.50% 14,791 $3.1M Reduce -3.2%
BND Vanguard Total Bond Market 0.49% 41,080 $3.0M Reduce -3.9%
WAY Waystar Holding Corp. 0.41% 78,103 $2.6M Add +75.3%
VGSH Vanguard Short-Term Treasury 0.40% 42,437 $2.5M Reduce -16.3%
WMT Walmart Inc. 0.38% 21,320 $2.4M Reduce -1.7%
ITW Illinois Tool Works 0.38% 9,481 $2.3M Reduce -0.2%
SNA Snap-on Inc. 0.36% 6,402 $2.2M Reduce -3.8%
VUSB Vanguard Ultra Short Bond Et 0.34% 41,845 $2.1M Reduce -8.8%
AMGN Amgen Inc. 0.33% 6,224 $2.0M No change
PG The Procter & Gamble Co. 0.31% 13,486 $1.9M No change
GNRC Generac Holdings Inc. 0.30% 13,371 $1.8M Reduce -7.8%
WINA Winmark Corp. 0.29% 4,419 $1.8M Reduce -2.5%
WAB Wabtec Corp. 0.27% 7,809 $1.7M Reduce -3.1%
RRX Regal Rexnord Corp. 0.27% 11,825 $1.7M Reduce -11.7%
ROST Ross Stores Inc. 0.27% 9,200 $1.7M No change
VNT Vontier Corp. 0.27% 44,250 $1.6M Add +11.4%
CBSH Commerce Bancshares Inc. 0.27% 31,366 $1.6M Add +4.5%
PRGS Progress Software Corp. 0.26% 37,843 $1.6M Reduce -11.3%
BRK.A Berkshire Hathaway Inc. Class A 0.24% 2 $1.5M No change
SPY SS SPDR S&P 500 ETF Trust-US 0.23% 2,123 $1.4M No change
WFC Wells Fargo & Co. 0.23% 15,476 $1.4M No change
TFX Teleflex Inc. 0.22% 11,254 $1.4M Reduce -0.9%
RTX RTX Corp. 0.21% 7,181 $1.3M Reduce -3.1%
MMSI Merit Medical Systems Inc. 0.20% 13,774 $1.2M Add +101.1%
CAT Caterpillar Inc. 0.19% 2,094 $1.2M Reduce -2.7%
COF Capital One Financial Corp. 0.18% 4,651 $1.1M No change
BIV Vanguard Intermediate-Term B 0.18% 14,110 $1.1M No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.18% 3,696 $1.1M No change
ETN Eaton Corp. PLC 0.17% 3,259 $1.0M No change
AMAT Applied Materials Inc. 0.17% 4,010 $1.0M No change
ZBRA Zebra Technologies Corp. Class A 0.17% 4,201 $1.0M Reduce -15.7%
HD Home Depot Inc. 0.16% 2,869 $987K No change
VTI VG Morningstar TS MKT ETF-US 0.15% 2,696 $904K Reduce -2.0%
CHRW C.H. Robinson Worldwide Inc. 0.14% 5,500 $884K No change
V Visa Inc. Class A 0.14% 2,444 $857K Add +0.1%
FITB Fifth Third Bancorp 0.14% 18,200 $852K No change
BRK.B Berkshire Hathaway Inc. Class B 0.14% 1,658 $833K No change
RY Royal Bank of Canada 0.13% 4,749 $810K No change
AWK American Water Works Co. Inc. 0.12% 5,700 $744K No change
MCD McDonald's Corp. 0.12% 2,433 $744K Add +0.5%
MTB M & T Bank Corp. filed as M & T BK CORP 0.12% 3,687 $743K Reduce -2.6%
TSLA Tesla Inc. 0.11% 1,558 $701K No change
LRN Stride Inc. 0.11% 10,514 $683K Reduce -37.4%
PEP Pepsico Inc. 0.11% 4,733 $679K No change
VOO Vanguard S&P 500 ETF 0.10% 1,030 $646K No change
SIGI Selective Insurance Group 0.10% 7,589 $635K Reduce -4.7%
GOOGL Alphabet Inc. Class A 0.10% 1,917 $600K No change
CNMD Conmed Corp. 0.10% 14,778 $600K Reduce -46.8%
BDX Becton Dickinson and Co. 0.10% 3,036 $589K No change
ACIW Aci Worldwide Inc. 0.10% 12,280 $587K Reduce -18.6%

Show all 144 holdings

Portfolio Sells Q3 2025 → Q4 2025
AJG Arthur J Gallagher & Co. Reduce -1.6% 3.09% −0.54
FAST Fastenal Co. Reduce -3.7% 1.27% −0.29
LRN Stride Inc. Reduce -37.4% 0.11% −0.28
VRT Vertiv Holdings Co. Class A Reduce -18.3% 2.44% −0.24
APH Amphenol Corp. Class A Reduce -13.7% 9.04% −0.22
ATR Aptargroup Inc. Reduce -1.0% 2.66% −0.18
RPM RPM International Inc. Reduce -1.9% 1.52% −0.18
XYL Xylem Inc. Reduce -0.8% 2.98% −0.16
FIX Comfort Systems USA Inc. Reduce -22.2% 1.17% −0.11
CNMD Conmed Corp. Reduce -46.8% 0.10% −0.11
GNRC Generac Holdings Inc. Reduce -7.8% 0.30% −0.08
MOD Modine Manufacturing Co. Sold out 0.00% −0.07
ZBRA Zebra Technologies Corp. Class A Reduce -15.7% 0.17% −0.07
VGSH Vanguard Short-Term Treasury Reduce -16.3% 0.40% −0.06
WINA Winmark Corp. Reduce -2.5% 0.29% −0.06
COST Costco Wholesale Corp. Reduce -0.8% 1.40% −0.06
GGG Graco Inc. Reduce -2.6% 2.06% −0.06
ADP Automatic Data Processing Reduce -0.4% 0.52% −0.06
LLY Eli Lilly & Co. Reduce -62.7% 0.05% −0.05
MSFT Microsoft Corp. Reduce -1.4% 0.95% −0.05
PNR Pentair PLC Reduce -3.6% 0.58% −0.04
CHD Church & Dwight Co. Inc. Reduce -2.1% 1.12% −0.03
ORCL Oracle Corp. Sold out 0.00% −0.03
IDA Idacorp Inc. Sold out 0.00% −0.03
RRX Regal Rexnord Corp. Reduce -11.7% 0.27% −0.03
PRGS Progress Software Corp. Reduce -11.3% 0.26% −0.03
ACIW Aci Worldwide Inc. Reduce -18.6% 0.10% −0.03
ECL Ecolab Inc. Reduce -1.2% 1.41% −0.03
VUSB Vanguard Ultra Short Bond Et Reduce -8.8% 0.34% −0.02
FCN Fti Consulting Inc. Reduce -11.2% 0.58% −0.02
ITW Illinois Tool Works Reduce -0.2% 0.38% −0.01
GE General Electric Reduce -15.1% 0.06% −0.01
MUSA Murphy USA Inc. Reduce -13.3% 0.08% −0.01
BND Vanguard Total Bond Market Reduce -3.9% 0.49% −0.00
SNA Snap-on Inc. Reduce -3.8% 0.36% −0.00
RAL Ralliant Corp. Reduce -21.4% 0.05% −0.00
GEV GE Vernova Inc. Reduce -12.0% 0.04% −0.00
MA Mastercard Inc. Class A Reduce -1.1% 0.06% +0.00
SIGI Selective Insurance Group Reduce -4.7% 0.10% +0.00
MTB M & T Bank Corp. Reduce -2.6% 0.12% +0.00
TRV The Travelers Cos Inc. Reduce -2.9% 0.08% +0.00
TFX Teleflex Inc. Reduce -0.9% 0.22% +0.01
VTI VG Morningstar TS MKT ETF-US Reduce -2.0% 0.15% +0.01
FIS Fidelity National Info Serv Reduce -3.6% 1.65% +0.01
ABBV Abbvie Inc. Reduce -0.3% 0.58% +0.01
NVT Nvent Electric PLC Reduce -5.7% 1.42% +0.01
BSV Vanguard Short-Term Bond ETF Reduce -2.6% 2.00% +0.01
WAB Wabtec Corp. Reduce -3.1% 0.27% +0.02
AAPL Apple Inc. Reduce -6.7% 0.64% +0.02
RTX RTX Corp. Reduce -3.1% 0.21% +0.02

Portfolio Buys Q3 2025 → Q4 2025
RSP Invesco S&P 500 Equal Weight Add +130.6% 0.71% +0.42
CSW CSW Industrials Inc. Add +8.8% 0.87% +0.23
WAY Waystar Holding Corp. Add +75.3% 0.41% +0.15
MMSI Merit Medical Systems Inc. Add +101.1% 0.20% +0.11
CLH Clean Harbors Inc. Add +4.9% 0.90% +0.08
AIT Applied Industrial Tech Inc. Add +13.5% 0.53% +0.07
MNPR Monopar Therapeutics Inc. New 0.06% +0.06
GOOG Alphabet Inc. Class C New 0.04% +0.04
SARO Standardaero Inc. New 0.03% +0.03
MSA Msa Safety Inc. Add +6.5% 0.75% +0.02
INTC Intel Corp. Add +21.0% 0.05% +0.01
V Visa Inc. Class A Add +0.1% 0.14% +0.01
VNT Vontier Corp. Add +11.4% 0.27% +0.01
KAI Kadant Inc. Add +1.9% 0.53% +0.01
MCD McDonald's Corp. Add +0.5% 0.12% +0.01
HON Honeywell International Inc. Add +0.9% 0.08% −0.00
CBSH Commerce Bancshares Inc. Add +4.5% 0.27% −0.01
VLTO Veralto Corp. Add +0.7% 0.88% −0.02
VRSK Verisk Analytics Inc. Add +3.6% 2.26% −0.11
ROP Roper Technologies Inc. Add +1.5% 2.99% −0.20
FISV Fiserv Inc. Add +0.1% 2.74% −2.33

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