Q3 2026 13F · SEC CIK 1067324

Mountain Pacific Investment Advisers LLC

Wealth managerFiled 2026-10-29 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $609.6M
Reported positions: 147
Top holdings a year, 3 yrs: +10.6%
Assets under management: $933.7M

Mountain Pacific Investment Advisers LLC is a wealth manager that reported 147 positions worth $609.6M in its Q3 2026 13F, filed 2026-10-29. Its largest holdings were Amphenol Corp (APH, 9.3%), Ametek Inc (AME, 6.9%), Danaher Corp Del (DHR, 4.5%). A portfolio copying its top holdings returned 10.6% a year over the last 3 years, against 20.4% for the S&P 500.

Mountain Pacific Investment Advisers LLC holdings largest 50 of 147 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Mountain Pacific Investment Advisers LLC 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
APHAmphenol Corp	9.3%	10.0%	671,539	+87.2%	$56.6M
AMEAmetek Inc	6.9%	6.6%	168,929	-2.2%	$41.8M
DHRDanaher Corp Del	4.5%	3.7%	123,524	+0.8%	$27.4M
IEXIdex Corp	4.2%	4.1%	113,379	-0.7%	$25.8M
TMOThermo Fisher Scientific Inc	4.1%	3.0%	37,265	-1.4%	$25.2M
AJGGallagher Arthur J & Co	2.9%	2.7%	76,466	+1.4%	$17.4M
VRTVertiv Holdings Co	2.7%	4.1%	69,285	-11.0%	$16.7M
DCIDonaldson Inc	2.5%	2.5%	173,718	-1.0%	$15.1M
ATRAptargroup Inc	2.4%	2.5%	121,613	-3.6%	$14.7M
XYLXylem Inc	2.4%	2.5%	141,766	+5.5%	$14.4M
ROPRoper Technologies Inc	2.3%	2.1%	40,176	+0.6%	$14.0M
NDSNNordson Corp	2.0%	1.8%	37,536	+0.4%	$12.3M
NVTNvent Elec PLC	2.0%	2.1%	74,828	-6.1%	$12.0M
BSVVanguard Bd Index Fds	1.8%	1.8%	145,707	-0.2%	$11.1M
GGGGraco Inc	1.7%	1.7%	136,389	-3.8%	$10.5M
MUMicron Technology Inc	1.7%	2.1%	9,576	-16.4%	$10.2M
FISVFiserv Inc	1.6%	1.8%	215,563	-6.5%	$9.7M
VRSKVerisk Analytics Inc	1.6%	1.6%	57,923	-0.7%	$9.7M
FASTFastenal Co	1.6%	1.5%	196,180	-0.9%	$9.7M
FIXComfort Sys USA Inc	1.6%	1.9%	5,720	-7.5%	$9.5M
ECLEcolab Inc	1.5%	1.5%	33,806	+0.4%	$9.3M
COSTCostco Wholesale Corporation	1.5%	1.4%	9,758	-0.6%	$8.9M
LSTRLandstar Systems Inc	1.4%	1.7%	52,285	-2.2%	$8.8M
RPMRpm Intl Inc	1.4%	1.5%	87,249	+2.1%	$8.6M
ROLLRbc Bearings Incorporated	1.3%	1.7%	16,471	-1.2%	$8.2M
AIZAssurant Inc	1.3%	1.1%	30,549	+12.4%	$8.0M
CHDChurch & Dwight Co Inc	1.2%	1.2%	74,822	-2.0%	$7.0M
JPMJpmorgan Chase & Co	1.1%	1.1%	21,175	-1.1%	$7.0M
CLHClean Harbors Inc	1.1%	1.0%	21,794	+0.9%	$6.8M
RSPInvesco Exchange Traded Fd T	1.0%	0.9%	30,550	+16.2%	$6.4M
XOMExxonmobil Holdings Corp	1.0%	—	37,198	—	$6.1M
CSWCsw Industrials Inc	1.0%	0.8%	20,286	+8.7%	$5.8M
VCSHVanguard Scottsdale Fds	0.9%	0.9%	74,629	-1.4%	$5.8M
MSAMsa Safety Inc	0.9%	0.8%	31,850	+8.1%	$5.7M
FTVFortive Corp	0.9%	0.9%	99,511	+1.0%	$5.5M
SPGIS&p Global Inc	0.8%	0.8%	12,548	-1.5%	$4.9M
VLTOVeralto Corp	0.8%	0.7%	51,336	-1.1%	$4.8M
MSFTMicrosoft Corp	0.8%	0.7%	9,440	-19.1%	$4.8M
UFPTUFP Technologies Inc	0.7%	0.6%	14,991	-3.2%	$4.4M
AAPLApple Inc	0.7%	0.6%	13,223	+1.3%	$4.4M
AITApplied Indl Technologies in	0.7%	0.6%	12,720	+5.9%	$4.2M
ABBVAbbvie Inc	0.7%	0.6%	15,440	+0.8%	$4.0M
JNJJohnson & Johnson	0.6%	0.6%	13,909	-0.8%	$3.7M
USBUS Bancorp	0.6%	0.6%	63,119	-2.4%	$3.6M
WATWaters Corp	0.6%	0.5%	8,286	+1.8%	$3.6M
KAIKadant Inc	0.6%	0.6%	13,533	+18.0%	$3.5M
MMSIMerit Med Sys Inc	0.5%	—	38,048	—	$3.3M
ADPAutomatic Data Processing in	0.4%	—	10,131	—	$2.6M
BNDVanguard Bd Index Fds	0.4%	—	36,918	—	$2.6M
GNRCGenerac Hldgs Inc	0.4%	0.6%	12,179	+0.0%	$2.5M

What Mountain Pacific Investment Advisers LLC bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Added to

APH Amphenol Corp+87.2% shares
KAI Kadant Inc+18.0% shares
RSP Invesco Exchange Traded Fd T+16.2% shares
AIZ Assurant Inc+12.4% shares
CSW Csw Industrials Inc+8.7% shares
MSA Msa Safety Inc+8.1% shares
AIT Applied Indl Technologies in+5.9% shares
XYL Xylem Inc+5.5% shares

Reduced

Left the top 50

XOM Exxon Mobil Corpwas 0.8%
FIS Fidelity Natl Information Svwas 0.7%
RRX Regal Rexnord Corporationwas 0.5%
AMAT Applied Matls Incwas 0.5%

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +9.0% /yr; S&P 500 +20.1%
3 years: +10.6% /yr; S&P 500 +20.4%
5 years: +4.6% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$609.6M	147
Q2 2026	$635.4M	146
Q1 2026	$583.7M	141
Q4 2025	$617.1M	144
Q3 2025	$639.0M	144
Q2 2025	$1.4B	139
Q1 2025	$1.3B	140
Q4 2024	$1.4B	136
Q3 2024	$1.5B	142
Q2 2024	$1.3B	138
Q1 2024	$1.8B	139
Q4 2023	$1.6B	134

Questions about Mountain Pacific Investment Advisers LLC's portfolio

What stocks does Mountain Pacific Investment Advisers LLC own?

Mountain Pacific Investment Advisers LLC's latest 13F, for Q3 2026 and filed Oct 29, 2026, lists 147 positions worth $609.6M. The largest are Amphenol Corp (APH) at 9.3%, Ametek Inc (AME) at 6.9%, Danaher Corp Del (DHR) at 4.5%, Idex Corp (IEX) at 4.2% and Thermo Fisher Scientific Inc (TMO) at 4.1%.

What did Mountain Pacific Investment Advisers LLC buy last quarter?

In Q3 2026, Mountain Pacific Investment Advisers LLC added Amphenol Corp (APH) (+87.2% shares), Kadant Inc (KAI) (+18.0% shares) and Invesco Exchange Traded Fd T (RSP) (+16.2% shares), compared with its Q2 2026 filing.

What did Mountain Pacific Investment Advisers LLC sell last quarter?

In Q3 2026, Mountain Pacific Investment Advisers LLC cut from its top 50 Exxon Mobil Corp (XOM), cut from its top 50 Fidelity Natl Information Sv (FIS), cut from its top 50 Regal Rexnord Corporation (RRX), cut from its top 50 Applied Matls Inc (AMAT), Microsoft Corp (MSFT) (-19.1% shares), Micron Technology Inc (MU) (-16.4% shares) and Vertiv Holdings Co (VRT) (-11.0% shares), compared with its Q2 2026 filing.

How has Mountain Pacific Investment Advisers LLC's portfolio performed?

A portfolio copying Mountain Pacific Investment Advisers LLC's 20 largest 13F holdings each quarter, from the day each filing was public, returned +10.6% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +9.0% against +20.1%. Over 5 years: +4.6% a year against +11.6%.

When is Mountain Pacific Investment Advisers LLC's next 13F filing due?

13F filings are due 45 days after each quarter ends. Mountain Pacific Investment Advisers LLC's filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Mountain Pacific Investment Advisers LLC manage?

Mountain Pacific Investment Advisers LLC reported $933.7M of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $609.6M.