2026 Q3 Portfolio Activity
In 2026 Q3, TANDEM CAPITAL MANAGEMENT CORP /ADV maintained a portfolio of 119 distinct positions. The most significant new addition was ALNYLAM PHARMACEUTICALS INC, now representing 0.19% of the total fund value. They heavily accumulated shares in NVIDIA CORPORATION, increasing the position by 12.8%. The fund also reduced its exposure to UNION PAC CORP by 23.9%.
Position History
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Total Positions
119
Quarter
2026 Q3
Top Holding
MSFT (5.0%)
Top 10 Concentration
35.2%
Turnover Rate
23.4%
Sector HHI
0.18
Items per page:
Showing 1-50 of 119
TANDEM CAPITAL MANAGEMENT CORP /ADV 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
MSFT
MICROSOFT CORP
|
Technology | 4.98% | 3.48% |
#1
5
Prev: #6
|
4.5 |
—
|
-277 | -1.2% |
P
S
|
21,938 | $11,251,872 |
$157.03
+226.0%
|
2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | ||
|
GOOGL
ALPHABET INC
|
Communication Services | 4.68% | 4.75% |
#2
Prev: #2
|
3.9 |
—
|
-882 | -2.8% |
P
S
|
30,735 | $10,575,213 |
$96.28
+190.8%
|
2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | ||
|
GE
GE AEROSPACE
|
Industrials | 4.43% | 5.11% |
#3
2
Prev: #1
|
3.3 |
—
|
-492 | -1.5% |
P
S
|
32,048 | $10,008,270 |
$42.42
+641.9%
|
2020 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | ||
|
GEV
GE VERNOVA INC
|
Industrials | 3.68% | 4.41% |
#4
Prev: #4
|
2.5 |
—
|
-178 | -2.0% |
P
S
|
8,753 | $8,319,639 | 2024 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
MRVL
MARVELL TECHNOL...
|
Technology | 3.49% | 3.80% |
#5
Prev: #5
|
2.4 |
—
|
-443 | -1.5% |
P
S
|
29,866 | $7,890,896 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
AMAT
APPLIED MATLS I...
|
Technology | 3.38% | 4.74% |
#6
3
Prev: #3
|
1.9 |
—
|
-678 | -4.3% |
P
S
|
14,923 | $7,631,068 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
AAPL
APPLE INC
|
Technology | 2.88% | 2.41% |
#7
1
Prev: #8
|
1.7 |
—
|
-235 | -1.2% |
P
S
|
19,567 | $6,516,113 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
META
META PLATFORMS ...
|
Communication Services | 2.86% | 2.14% |
#8
4
Prev: #12
|
1.6 |
—
|
-116 | -1.3% |
P
S
|
8,911 | $6,461,716 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
ETN
EATON CORP PLC
|
Industrials | 2.45% | 2.35% |
#9
1
Prev: #10
|
1.5 |
—
|
-220 | -1.7% |
P
S
|
12,875 | $5,532,516 | 2022 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
JPM
JPMORGAN CHASE ...
|
Financial Services | 2.41% | 2.27% |
#10
1
Prev: #11
|
1.5 |
—
|
-22 | -0.1% |
P
S
|
16,498 | $5,458,033 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BNT
BROOKFIELD WEAL...
|
Financial Services | 2.39% | 2.68% |
#11
4
Prev: #7
|
1.5 |
—
|
-1,900 | -1.3% |
P
S
|
147,675 | $5,393,091 | 2024 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
GOOG
ALPHABET INC
|
Communication Services | 2.37% | 2.38% |
#12
3
Prev: #9
|
1.4 |
—
|
-358 | -2.2% |
P
S
|
15,691 | $5,346,551 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
SCHW
CHARLES SCHWAB ...
|
Financial Services | 2.00% | 1.82% |
#13
1
Prev: #14
|
1.3 |
—
|
-460 | -1.0% |
P
S
|
46,318 | $4,527,121 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
NVDA
NVIDIA CORPORAT...
|
Technology | 1.83% | 1.35% |
#14
5
Prev: #19
|
2.7 |
—
|
2,063 | 12.8% |
P
S
|
18,118 | $4,137,789 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
SYK
STRYKER CORPORA...
|
Healthcare | 1.73% | 1.89% |
#15
2
Prev: #13
|
1.2 |
—
|
-124 | -0.9% |
P
S
|
14,179 | $3,904,617 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
JLL
JONES LANG LASA...
|
Real Estate | 1.73% | 1.69% |
#16
1
Prev: #15
|
1.2 |
—
|
-217 | -1.7% |
P
S
|
12,770 | $3,901,490 | 2023 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
DHR
DANAHER CORP DE...
|
Healthcare | 1.60% | 1.28% |
#17
4
Prev: #21
|
1.1 |
—
|
271 | 1.7% |
P
S
|
16,310 | $3,613,427 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
AMZN
AMAZON COM INC
|
Consumer Cyclical | 1.59% | 1.46% |
#18
2
Prev: #16
|
1.1 |
—
|
-140 | -1.0% |
P
S
|
14,387 | $3,584,521 | 2020 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
SLG
SL GREEN RLTY C...
|
Real Estate | 1.37% | 1.41% |
#19
2
Prev: #17
|
1.0 |
—
|
-1,340 | -2.1% |
P
S
|
63,418 | $3,102,409 | 2023 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
ABT
ABBOTT LABORATO...
|
Healthcare | 1.36% | 1.18% |
#20
4
Prev: #24
|
1.0 |
—
|
170 | 0.5% |
P
S
|
31,168 | $3,080,316 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
UBER
UBER TECHNOLOGI...
|
Technology | 1.32% | 1.34% |
#21
1
Prev: #20
|
1.0 |
—
|
-520 | -1.2% |
P
S
|
43,642 | $2,989,913 | 2024 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BA
BOEING CO
|
Industrials | 1.23% | 1.37% |
#22
4
Prev: #18
|
1.0 |
—
|
-121 | -0.8% |
P
S
|
14,977 | $2,786,517 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
GEHC
GE HEALTHCARE T...
|
Healthcare | 1.19% | 1.11% |
#23
4
Prev: #27
|
1.0 |
—
|
-100 | -0.2% |
P
S
|
41,181 | $2,692,002 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BABA
ALIBABA GROUP H...
|
Consumer Cyclical | 1.18% | 1.00% |
#24
9
Prev: #33
|
1.0 |
—
|
-89 | -0.4% |
P
S
|
24,800 | $2,667,019 | 2023 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
VIG
VANGUARD SPECIA...
|
ETF | 1.16% | 1.12% |
#25
1
Prev: #26
|
1.0 |
—
|
-11 | -0.1% |
P
S
|
11,198 | $2,612,535 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
CRWD
CROWDSTRIKE HLD...
|
Technology | 1.10% | 0.88% |
#26
14
Prev: #40
|
3.4 |
—
|
6,678 | 243.5% |
P
S
|
9,420 | $2,493,945 | 2022 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
PANW
PALO ALTO NETWO...
|
Technology | 1.10% | 0.92% |
#27
10
Prev: #37
|
0.9 |
—
|
-200 | -3.1% |
P
S
|
6,239 | $2,478,817 | 2022 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
VSNT
VERSANT MEDIA G...
|
Communication Services | 1.07% | 1.17% |
#28
3
Prev: #25
|
0.9 |
—
|
-1,160 | -1.5% |
P
S
|
76,430 | $2,422,831 | 2026 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
CVS
CVS HEALTH CORP
|
Healthcare | 1.05% | 1.21% |
#29
6
Prev: #23
|
0.9 |
—
|
-85 | -0.3% |
P
S
|
27,773 | $2,379,868 | 2024 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
WM
WASTE MGMT INC ...
|
Industrials | 1.05% | 0.89% |
#30
9
Prev: #39
|
2.9 |
—
|
2,056 | 21.6% |
P
S
|
11,595 | $2,364,452 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
PLD
PROLOGIS INC.
|
Real Estate | 1.01% | 1.01% |
#31
1
Prev: #32
|
0.9 |
—
|
-202 | -1.1% |
P
S
|
17,614 | $2,287,002 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
CSL
CARLISLE COS IN...
|
Industrials | 1.00% | 1.08% |
#32
4
Prev: #28
|
0.9 |
—
|
-60 | -0.8% |
P
S
|
7,051 | $2,271,621 | 2025 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
VUG
VANGUARD INDEX ...
|
Warrant | 0.99% | 0.91% |
#33
5
Prev: #38
|
0.9 |
—
|
-180 | -0.7% |
P
S
|
24,918 | $2,245,361 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
MSI
MOTOROLA SOLUTI...
|
Technology | 0.97% | 0.94% |
#34
2
Prev: #36
|
0.9 |
—
|
-507 | -9.4% |
P
S
|
4,895 | $2,183,023 | 2025 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BBUC
BROOKFIELD BUSI...
|
Industrials | 0.95% | 1.07% |
#35
6
Prev: #29
|
0.9 |
—
|
-626 | -0.7% |
P
S
|
84,268 | $2,149,666 | 2022 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
ELV
ELEVANCE HEALTH...
|
Healthcare | 0.95% | 1.05% |
#36
6
Prev: #30
|
0.9 |
—
|
-943 | -14.6% |
P
S
|
5,494 | $2,136,177 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
LLY
ELI LILLY & CO
|
Healthcare | 0.90% | 0.70% |
#37
9
Prev: #46
|
2.9 |
—
|
374 | 27.0% |
P
S
|
1,757 | $2,032,990 | 2026 Q2 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
COF
CAPITAL ONE FIN...
|
Financial Services | 0.90% | 0.98% |
#38
3
Prev: #35
|
0.9 |
—
|
-1,130 | -9.7% |
P
S
|
10,516 | $2,030,324 | 2025 Q3 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
LHX
L3HARRIS TECHNO...
|
Industrials | 0.89% | 1.03% |
#39
8
Prev: #31
|
0.9 |
—
|
62 | 0.7% |
P
S
|
8,504 | $2,013,577 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BN
BROOKFIELD CORP
|
Financial Services | 0.88% | 0.99% |
#40
6
Prev: #34
|
0.9 |
—
|
-851 | -1.5% |
P
S
|
54,686 | $1,993,835 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BRK/B
BERKSHIRE HATHA...
|
Financial Services | 0.88% | 0.85% |
#41
2
Prev: #43
|
0.9 |
—
|
-58 | -1.4% |
P
S
|
3,982 | $1,982,837 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
RRX
REGAL REXNORD C...
|
Industrials | 0.84% | 1.25% |
#42
20
Prev: #22
|
0.8 |
—
|
-210 | -1.7% |
P
S
|
12,254 | $1,900,718 | 2022 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
NOW
SERVICENOW INC
|
Technology | 0.77% | 0.54% |
#43
11
Prev: #54
|
0.8 |
—
|
40 | 0.3% |
P
S
|
12,945 | $1,734,759 | 2026 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
ASML
ASML HLDG NV
|
Technology | 0.75% | 0.80% |
#44
Prev: #44
|
0.8 |
—
|
-14 | -1.5% |
P
S
|
941 | $1,704,781 | 2024 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BSX
BOSTON SCIENTIF...
|
Healthcare | 0.73% | 0.74% |
#45
Prev: #45
|
0.8 |
—
|
-3,300 | -8.1% |
P
S
|
37,672 | $1,644,383 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
HD
HOME DEPOT INC
|
Consumer Cyclical | 0.71% | 0.85% |
#46
4
Prev: #42
|
0.8 |
—
|
-75 | -1.3% |
P
S
|
5,667 | $1,612,205 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
LRCX
LAM RESEARCH CO...
|
Technology | 0.70% | 0.87% |
#47
6
Prev: #41
|
0.8 |
—
|
50 | 1.0% |
P
S
|
4,850 | $1,593,274 | 2023 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
BAM
BROOKFIELD ASSE...
|
Financial Services | 0.69% | 0.67% |
#48
1
Prev: #49
|
0.8 |
—
|
-515 | -1.5% |
P
S
|
34,901 | $1,555,887 | 2019 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
ABNB
AIRBNB INC
|
Consumer Cyclical | 0.66% | 0.46% |
#49
15
Prev: #64
|
2.8 |
—
|
1,701 | 22.2% |
P
S
|
9,346 | $1,501,435 | 2026 Q1 | 13F Filing | 2026-09-30 | 2026-10-22 | |||
|
MS
MORGAN STANLEY
|
Financial Services | 0.66% | 0.70% |
#50
3
Prev: #47
|
1.3 |
—
|
no change | no change |
P
S
|
7,916 | $1,488,841 | 2025 Q4 | 13F Filing | 2026-09-30 | 2026-10-22 |
Showing 1-50 of 119 holdings