Filed: 4/21/2025ACC: 0001214659-25-006133
📋 What this filing means
SUMMA CORP. filed this quarterly 13F‑HR report disclosing 59 equity positions with a total reported market value of $172.86M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
59
Positions
$172.86M
Total AUM (reported)
2.23M
Total Shares
Allocation by class
COM$148.79M86.1%
SPONSORED ADS$9.48M5.5%
CL B NEW$2.42M1.4%
CL A$1.53M0.9%
CAP STK CL A$1.13M0.7%
3 7 YR TREAS BD$752.5K0.4%
IBOXX INV CP ETF$701.1K0.4%
Portfolio Concentration
Top 3$107.93M62.4%
4–10$33.02M19.1%
11–25$16.98M9.8%
Rest$14.92M8.6%
Top 3 weight
62.4%
Top 10 weight
81.5%
Voting Authority Distribution
Total shares with voting rights: 2.23M
Sole
Full voting authority
2.23M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole52
Shared0
Other7
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings59
Rows:
NVIDIA CORPORATION
SOLEShares784.72K
TypeSH
Market value$85.05M
49.20%
Sole
784.72K
Shared
0.00
None
0.00
ADVANCED MICRO DEVICES INC
SOLEShares120.20K
TypeSH
Market value$12.35M
7.14%
Sole
120.20K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares28.07K
TypeSH
Market value$10.54M
6.09%
Sole
28.07K
Shared
0.00
None
0.00
ALIBABA GROUP HLDG LTD
SOLEShares71.67K
TypeSH
Market value$9.48M
5.48%
Sole
71.67K
Shared
0.00
None
0.00
QUALCOMM INC
SOLEShares40.12K
TypeSH
Market value$6.16M
3.57%
Sole
40.12K
Shared
0.00
None
0.00
VALERO ENERGY CORP
SOLEShares40.40K
TypeSH
Market value$5.34M
3.09%
Sole
40.40K
Shared
0.00
None
0.00
APA CORPORATION
SOLEShares185.30K
TypeSH
Market value$3.90M
2.25%
Sole
185.30K
Shared
0.00
None
0.00
OPORTUN FINL CORP
SOLEShares562.34K
TypeSH
Market value$3.09M
1.79%
Sole
562.34K
Shared
0.00
None
0.00
MARVELL TECHNOLOGY INC
SOLEShares42.96K
TypeSH
Market value$2.65M
1.53%
Sole
42.96K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares4.54K
TypeSH
Market value$2.42M
1.40%
Sole
4.54K
Shared
0.00
None
0.00
APPLE INC
SOLEShares10.28K
TypeSH
Market value$2.28M
1.32%
Sole
10.28K
Shared
0.00
None
0.00
UBER TECHNOLOGIES INC
SOLEShares25.11K
TypeSH
Market value$1.83M
1.06%
Sole
25.11K
Shared
0.00
None
0.00
DEVON ENERGY CORP NEW
SOLEShares51K
TypeSH
Market value$1.78M
1.03%
Sole
51K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares8.11K
TypeSH
Market value$1.54M
0.89%
Sole
8.11K
Shared
0.00
None
0.00
WALMART INC
SOLEShares16.06K
TypeSH
Market value$1.41M
0.82%
Sole
16.06K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares7.28K
TypeSH
Market value$1.13M
0.65%
Sole
7.28K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO.
SOLEShares4K
TypeSH
Market value$981.2K
0.57%
Sole
4K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares1.74K
TypeSH
Market value$951.5K
0.55%
Sole
1.74K
Shared
0.00
None
0.00
UNITEDHEALTH GROUP INC
SOLEShares1.49K
TypeSH
Market value$777.8K
0.45%
Sole
1.49K
Shared
0.00
None
0.00
EXXON MOBIL CORP
SOLEShares6.50K
TypeSH
Market value$773.0K
0.45%
Sole
6.50K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares6.37K
TypeSH
Market value$752.5K
0.44%
Sole
6.37K
Shared
0.00
None
0.00
THERMO FISHER SCIENTIFIC INC
SOLEShares1.46K
TypeSH
Market value$724.5K
0.42%
Sole
1.46K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares6.45K
TypeSH
Market value$701.1K
0.41%
Sole
6.45K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares6.90K
TypeSH
Market value$682.5K
0.39%
Sole
6.90K
Shared
0.00
None
0.00
ADOBE INC
SOLEShares1.73K
TypeSH
Market value$662.0K
0.38%
Sole
1.73K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
NVIDIA CORPORATIONSOLE | COM | 784.72K | SH | $85.05M 49.20% | 784.72K | 0.00 | 0.00 |
ADVANCED MICRO DEVICES INCSOLE | COM | 120.20K | SH | $12.35M 7.14% | 120.20K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 28.07K | SH | $10.54M 6.09% | 28.07K | 0.00 | 0.00 |
ALIBABA GROUP HLDG LTDSOLE | SPONSORED ADS | 71.67K | SH | $9.48M 5.48% | 71.67K | 0.00 | 0.00 |
QUALCOMM INCSOLE | COM | 40.12K | SH | $6.16M 3.57% | 40.12K | 0.00 | 0.00 |
VALERO ENERGY CORPSOLE | COM | 40.40K | SH | $5.34M 3.09% | 40.40K | 0.00 | 0.00 |
APA CORPORATIONSOLE | COM | 185.30K | SH | $3.90M 2.25% | 185.30K | 0.00 | 0.00 |
OPORTUN FINL CORPSOLE | COM | 562.34K | SH | $3.09M 1.79% | 562.34K | 0.00 | 0.00 |
MARVELL TECHNOLOGY INCSOLE | COM | 42.96K | SH | $2.65M 1.53% | 42.96K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 4.54K | SH | $2.42M 1.40% | 4.54K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 10.28K | SH | $2.28M 1.32% | 10.28K | 0.00 | 0.00 |
UBER TECHNOLOGIES INCSOLE | COM | 25.11K | SH | $1.83M 1.06% | 25.11K | 0.00 | 0.00 |
DEVON ENERGY CORP NEWSOLE | COM | 51K | SH | $1.78M 1.03% | 51K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 8.11K | SH | $1.54M 0.89% | 8.11K | 0.00 | 0.00 |
WALMART INCSOLE | COM | 16.06K | SH | $1.41M 0.82% | 16.06K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 7.28K | SH | $1.13M 0.65% | 7.28K | 0.00 | 0.00 |
JPMORGAN CHASE & CO.SOLE | COM | 4K | SH | $981.2K 0.57% | 4K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 1.74K | SH | $951.5K 0.55% | 1.74K | 0.00 | 0.00 |
UNITEDHEALTH GROUP INCSOLE | COM | 1.49K | SH | $777.8K 0.45% | 1.49K | 0.00 | 0.00 |
EXXON MOBIL CORPSOLE | COM | 6.50K | SH | $773.0K 0.45% | 6.50K | 0.00 | 0.00 |
ISHARES TRSOLE | 3 7 YR TREAS BD | 6.37K | SH | $752.5K 0.44% | 6.37K | 0.00 | 0.00 |
THERMO FISHER SCIENTIFIC INCSOLE | COM | 1.46K | SH | $724.5K 0.42% | 1.46K | 0.00 | 0.00 |
ISHARES TRSOLE | IBOXX INV CP ETF | 6.45K | SH | $701.1K 0.41% | 6.45K | 0.00 | 0.00 |
ISHARES TRSOLE | CORE US AGGBD ET | 6.90K | SH | $682.5K 0.39% | 6.90K | 0.00 | 0.00 |
ADOBE INCSOLE | COM | 1.73K | SH | $662.0K 0.38% | 1.73K | 0.00 | 0.00 |
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