2026 Q3 Portfolio Activity
In 2026 Q3, AMI ASSET MANAGEMENT CORP maintained a portfolio of 114 distinct positions. The most significant new addition was VERTEX PHARMACEUTICALS I, now representing 2.01% of the total fund value. They heavily accumulated shares in ECOLAB INC, increasing the position by 59.4%. The fund also reduced its exposure to NETFLIX INC by 40.9%.
Position History
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Total Positions
114
Quarter
2026 Q3
Top Holding
AAPL (8.0%)
Top 10 Concentration
47.8%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 114
AMI ASSET MANAGEMENT CORP Full Holdings List — 2026 Q3
| Stock | History | Sector / Type | Port % | Prev % | Rank / Prev | Conviction | Change | % Change | Influence | Shares | Mkt Value | Avg Cost | Price Held | 1st Owned | Source | Source Date | Date Reported | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
AAPL
APPLE INC
|
Technology | 8.01% | 7.30% |
#1
Prev: #1
|
5.7 |
—
|
-19,120 | -4.4% |
P
S
|
418,851 | $139,485,718 |
$71.46
+380.7%
|
2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | ||
|
GOOGL
ALPHABET INC CL...
|
Communication Services | 5.87% | 6.35% |
#2
Prev: #2
|
4.3 |
—
|
-11,810 | -3.8% |
P
S
|
296,886 | $102,152,617 |
$91.06
+273.7%
|
2016 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | ||
|
TSM
TAIWAN SEMICOND...
|
Technology | 4.95% | 5.37% |
#3
Prev: #3
|
3.5 |
—
|
-6,524 | -3.3% |
P
S
|
188,836 | $86,144,963 |
$217.36
+93.3%
|
2024 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | ||
|
AVGO
BROADCOM INC
|
Technology | 4.71% | 5.30% |
#4
Prev: #4
|
2.9 |
—
|
-10,187 | -4.2% |
P
S
|
233,379 | $81,960,213 | 2020 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
MSFT
MICROSOFT CORP
|
Technology | 4.69% | 3.56% |
#5
4
Prev: #9
|
2.9 |
—
|
-6,581 | -4.0% |
P
S
|
159,314 | $81,712,248 | 2018 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
AMZN
AMAZON.COM INC
|
Consumer Cyclical | 4.52% | 4.55% |
#6
1
Prev: #5
|
2.3 |
—
|
-15,020 | -4.5% |
P
S
|
316,201 | $78,781,581 | 2020 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
PANW
PALO ALTO NETWO...
|
Technology | 4.36% | 3.90% |
#7
1
Prev: #8
|
2.2 |
—
|
-7,561 | -3.8% |
P
S
|
190,892 | $75,843,249 | 2020 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
LLY
ELI LILLY & CO
|
Healthcare | 3.76% | 4.06% |
#8
1
Prev: #7
|
2.0 |
—
|
-2,078 | -3.5% |
P
S
|
56,648 | $65,545,921 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
PWR
QUANTA SVCS INC
|
Industrials | 3.59% | 4.20% |
#9
3
Prev: #6
|
1.9 |
—
|
-3,944 | -3.9% |
P
S
|
97,382 | $62,569,063 | 2021 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CRWD
CROWDSTRIKE HLD...
|
Technology | 3.36% | 2.53% |
#10
7
Prev: #17
|
4.3 |
—
|
163,526 | 283.9% |
P
S
|
221,128 | $58,543,511 | 2025 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
WST
WEST PHARMACEUT...
|
Healthcare | 3.01% | 3.03% |
#11
1
Prev: #12
|
1.7 |
—
|
-5,208 | -3.5% |
P
S
|
141,556 | $52,483,188 | 2014 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ULTA
ULTA BEAUTY INC
|
Consumer Cyclical | 3.01% | 2.58% |
#12
4
Prev: #16
|
1.7 |
—
|
-3,401 | -3.4% |
P
S
|
95,948 | $52,403,914 | 2021 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
LH
LABCORP HLDGS I...
|
Healthcare | 2.90% | 2.75% |
#13
2
Prev: #15
|
1.7 |
—
|
-6,800 | -4.0% |
P
S
|
163,755 | $50,454,633 | 2015 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CHD
CHURCH & DWIGHT...
|
Consumer Defensive | 2.77% | 2.97% |
#14
1
Prev: #13
|
1.6 |
—
|
-21,573 | -4.0% |
P
S
|
511,288 | $48,173,550 | 2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
GLW
CORNING INC
|
Technology | 2.72% | 3.50% |
#15
5
Prev: #10
|
3.6 |
—
|
70,003 | 29.4% |
P
S
|
308,020 | $47,361,134 | 2025 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
NOW
SERVICENOW INC
|
Technology | 2.71% | 1.97% |
#16
9
Prev: #25
|
1.6 |
—
|
7,715 | 2.2% |
P
S
|
352,058 | $47,179,271 | 2024 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
BDX
BECTON DICKINSO...
|
Healthcare | 2.57% | 2.24% |
#17
3
Prev: #20
|
1.5 |
—
|
-6,992 | -2.7% |
P
S
|
250,265 | $44,797,494 | 2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ECL
ECOLAB INC
|
Basic Materials | 2.43% | 1.55% |
#18
8
Prev: #26
|
4.0 |
—
|
57,432 | 59.4% |
P
S
|
154,042 | $42,296,874 | 2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
AXON
AXON ENTERPRISE...
|
Industrials | 2.43% | 3.36% |
#19
8
Prev: #11
|
1.5 |
—
|
-4,102 | -3.9% |
P
S
|
99,965 | $42,237,389 | 2026 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SCHW
CHARLES SCHWAB ...
|
Financial Services | 2.37% | 2.30% |
#20
1
Prev: #19
|
1.4 |
—
|
-10,420 | -2.4% |
P
S
|
422,254 | $41,271,077 | 2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CL
COLGATE PALMOLI...
|
Consumer Defensive | 2.26% | 2.53% |
#21
3
Prev: #18
|
1.4 |
—
|
-17,390 | -3.6% |
P
S
|
461,735 | $39,395,205 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SPOT
SPOTIFY TECHNOL...
|
Communication Services | 2.24% | 2.00% |
#22
2
Prev: #24
|
2.9 |
—
|
4,401 | 5.8% |
P
S
|
79,985 | $38,982,948 | 2025 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
MA
MASTERCARD INC ...
|
Financial Services | 2.11% | 2.02% |
#23
1
Prev: #22
|
1.3 |
—
|
-1,804 | -2.6% |
P
S
|
66,627 | $36,742,891 | 2013 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SNPS
SYNOPSYS INC
|
Technology | 2.02% | 1.33% |
#24
3
Prev: #27
|
3.8 |
—
|
29,065 | 56.1% |
P
S
|
80,884 | $35,179,483 | 2015 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
VRTX
VERTEX PHARMACE...
|
Healthcare | 2.01% | — |
#25
Prev: #—
|
4.3 |
—
|
66,949 | — |
NEW
|
66,949 | $35,001,455 | 2026 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
WM
WASTE MGMT INC ...
|
Industrials | 1.94% | 2.21% |
#26
5
Prev: #21
|
1.3 |
—
|
-6,160 | -3.6% |
P
S
|
165,679 | $33,785,205 | 2019 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CART
MAPLEBEAR INC
|
Consumer Cyclical | 1.77% | 2.02% |
#27
4
Prev: #23
|
1.2 |
—
|
-26,263 | -3.5% |
P
S
|
715,598 | $30,856,603 | 2025 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
NFLX
NETFLIX INC
|
Communication Services | 1.63% | 2.84% |
#28
14
Prev: #14
|
0.7 |
—
|
-283,296 | -40.9% |
P
S
|
408,695 | $28,436,989 | 2024 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
COST
COSTCO WHSL COR...
|
Consumer Defensive | 1.10% | 1.17% |
#29
Prev: #29
|
0.9 |
—
|
-687 | -3.2% |
P
S
|
21,074 | $19,184,123 | 2013 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ZTS
ZOETIS INC CLAS...
|
Healthcare | 1.06% | 1.09% |
#30
1
Prev: #31
|
0.9 |
—
|
1,294 | 0.5% |
P
S
|
263,803 | $18,421,394 | 2013 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ARM
ARM HLDGS PLC E...
|
Technology | 1.01% | 1.28% |
#31
3
Prev: #28
|
0.9 |
—
|
-1,959 | -3.1% |
P
S
|
60,908 | $17,642,695 | 2026 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CTAS
CINTAS CORP
|
Industrials | 0.77% | 0.69% |
#32
3
Prev: #35
|
0.8 |
—
|
-1,816 | -2.6% |
P
S
|
69,032 | $13,465,288 | 2019 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
MKC
MCCORMICK & CO ...
|
Consumer Defensive | 0.76% | 0.83% |
#33
1
Prev: #34
|
0.8 |
—
|
-1,896 | -0.7% |
P
S
|
285,498 | $13,247,090 | 2008 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SPCX
SPACE EX TECH S...
|
ETF | 0.71% | 0.92% |
#34
2
Prev: #32
|
0.8 |
—
|
-11,917 | -12.8% |
P
S
|
81,518 | $12,297,783 | 2026 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
TJX
TJX COS INC NEW
|
Consumer Cyclical | 0.68% | 0.88% |
#35
2
Prev: #33
|
0.8 |
—
|
-11,742 | -11.6% |
P
S
|
89,660 | $11,862,851 | 2026 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SPY
STATE STREET SP...
|
ETF | 0.14% | 0.13% |
#36
1
Prev: #37
|
2.1 |
—
|
190 | 6.2% |
P
S
|
3,275 | $2,497,528 | 2021 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
SOXX
ISHARES TR PHLX...
|
ETF | 0.11% | — |
#37
Prev: #—
|
3.5 |
—
|
3,350 | — |
NEW
|
3,350 | $1,904,825 | 2026 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
JNJ
JOHNSON & JOHNS...
|
Healthcare | 0.09% | 0.09% |
#38
Prev: #38
|
0.5 |
—
|
41 | 0.7% |
P
S
|
6,190 | $1,638,741 | 2020 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
MRK
MERCK & CO. INC...
|
Healthcare | 0.09% | 0.08% |
#39
2
Prev: #41
|
0.5 |
—
|
82 | 0.8% |
P
S
|
10,800 | $1,569,348 | 2020 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
QCOM
QUALCOMM INC
|
Technology | 0.09% | 0.08% |
#40
1
Prev: #39
|
0.5 |
—
|
64 | 0.8% |
P
S
|
8,051 | $1,481,706 | 2006 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
IGV
ISHARES TR EXPA...
|
ETF | 0.08% | — |
#41
Prev: #—
|
3.5 |
—
|
13,342 | — |
NEW
|
13,342 | $1,420,618 | 2026 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 0.08% | 0.08% |
#42
Prev: #42
|
0.5 |
—
|
53 | 1.3% |
P
S
|
4,252 | $1,406,689 | 2019 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
CGON
CG ONCOLOGY INC
|
Healthcare | 0.07% | 0.08% |
#43
3
Prev: #40
|
0.5 |
—
|
-2,127 | -11.0% |
P
S
|
17,271 | $1,224,341 | 2025 Q2 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
EXLS
EXLSERVICE HLDG...
|
Technology | 0.07% | 0.05% |
#44
27
Prev: #71
|
0.5 |
—
|
627 | 1.8% |
P
S
|
35,039 | $1,204,641 | 2016 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
KNSA
KINIKSA PHARMAC...
|
Healthcare | 0.07% | 0.06% |
#45
11
Prev: #56
|
0.5 |
—
|
-517 | -3.3% |
P
S
|
15,341 | $1,144,592 | 2024 Q3 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
PKG
PACKAGING CORP ...
|
Consumer Cyclical | 0.07% | 0.07% |
#46
1
Prev: #47
|
0.5 |
—
|
39 | 0.8% |
P
S
|
4,978 | $1,141,256 | 2025 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
FCX
FREEPORT-MCMORA...
|
Basic Materials | 0.06% | 0.06% |
#47
10
Prev: #57
|
0.5 |
—
|
64 | 0.4% |
P
S
|
16,017 | $1,121,190 | 2026 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ARQT
ARCUTIS BIOTHER...
|
Healthcare | 0.06% | 0.06% |
#48
13
Prev: #61
|
2.0 |
—
|
4,384 | 11.8% |
P
S
|
41,505 | $1,096,977 | 2024 Q1 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
ELF
E L F BEAUTY IN...
|
Consumer Defensive | 0.06% | 0.05% |
#49
26
Prev: #75
|
0.5 |
—
|
-233 | -2.2% |
P
S
|
10,566 | $1,066,849 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 | |||
|
VERA
VERA THERAPEUTI...
|
Healthcare | 0.06% | 0.08% |
#50
7
Prev: #43
|
0.5 |
—
|
1,446 | 4.7% |
P
S
|
32,028 | $1,034,184 | 2025 Q4 | 13F Filing | 2026-09-30 | 2026-10-20 |
Showing 1-50 of 114 holdings