Filed: 1/21/2026ACC: 0001214659-26-000679
📋 What this filing means
SUMMA CORP. filed this quarterly 13F‑HR report disclosing 77 equity positions with a total reported market value of $233.16M. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
77
Positions
$233.16M
Total AUM (reported)
1.76M
Total Shares
Allocation by class
COM$191.02M81.9%
RUS 1000 GRW ETF$5.22M2.2%
CAP STK CL A$3.35M1.4%
RUS 1000 VAL ETF$2.81M1.2%
CL B NEW$2.44M1.0%
XTRACK MSCI EAFE$2.20M0.9%
GOLD SHS$1.91M0.8%
Portfolio Concentration
Top 3$155.24M66.6%
4–10$29.10M12.5%
11–25$23.10M9.9%
Rest$25.72M11.0%
Top 3 weight
66.6%
Top 10 weight
79.1%
Voting Authority Distribution
Total shares with voting rights: 1.76M
Sole
Full voting authority
1.76M
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)
Sole69
Shared0
Other8
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings77
Rows:
NVIDIA CORPORATION
SOLEShares635.15K
TypeSH
Market value$118.46M
50.80%
Sole
635.15K
Shared
0.00
None
0.00
ADVANCED MICRO DEVICES INC
SOLEShares121.77K
TypeSH
Market value$26.08M
11.18%
Sole
121.77K
Shared
0.00
None
0.00
MICROSOFT CORP
SOLEShares22.13K
TypeSH
Market value$10.70M
4.59%
Sole
22.13K
Shared
0.00
None
0.00
QUALCOMM INC
SOLEShares35K
TypeSH
Market value$5.99M
2.57%
Sole
35K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares11.03K
TypeSH
Market value$5.22M
2.24%
Sole
11.03K
Shared
0.00
None
0.00
AMAZON COM INC
SOLEShares21.09K
TypeSH
Market value$4.87M
2.09%
Sole
21.09K
Shared
0.00
None
0.00
APPLE INC
SOLEShares12.75K
TypeSH
Market value$3.47M
1.49%
Sole
12.75K
Shared
0.00
None
0.00
MARVELL TECHNOLOGY INC
SOLEShares40K
TypeSH
Market value$3.40M
1.46%
Sole
40K
Shared
0.00
None
0.00
ALPHABET INC
SOLEShares10.71K
TypeSH
Market value$3.35M
1.44%
Sole
10.71K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares13.38K
TypeSH
Market value$2.81M
1.21%
Sole
13.38K
Shared
0.00
None
0.00
BERKSHIRE HATHAWAY INC DEL
SOLEShares4.85K
TypeSH
Market value$2.44M
1.05%
Sole
4.85K
Shared
0.00
None
0.00
DBX ETF TR
SOLEShares45.63K
TypeSH
Market value$2.20M
0.94%
Sole
45.63K
Shared
0.00
None
0.00
OPORTUN FINL CORP
SOLEShares396.77K
TypeSH
Market value$2.10M
0.90%
Sole
396.77K
Shared
0.00
None
0.00
UBER TECHNOLOGIES INC
SOLEShares25K
TypeSH
Market value$2.04M
0.88%
Sole
25K
Shared
0.00
None
0.00
SPDR GOLD TR
SOLEShares4.81K
TypeSH
Market value$1.91M
0.82%
Sole
4.81K
Shared
0.00
None
0.00
WALMART INC
SOLEShares15.85K
TypeSH
Market value$1.77M
0.76%
Sole
15.85K
Shared
0.00
None
0.00
ALPHABET INC
DFNDShares4.92K
TypeSH
Market value$1.54M
0.66%
Sole
4.92K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares13.91K
TypeSH
Market value$1.34M
0.57%
Sole
13.91K
Shared
0.00
None
0.00
JPMORGAN CHASE & CO.
SOLEShares3.80K
TypeSH
Market value$1.22M
0.53%
Sole
3.80K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares12.18K
TypeSH
Market value$1.17M
0.50%
Sole
12.18K
Shared
0.00
None
0.00
INVESCO QQQ TR
SOLEShares1.85K
TypeSH
Market value$1.13M
0.49%
Sole
1.85K
Shared
0.00
None
0.00
SPDR S&P 500 ETF TR
SOLEShares1.66K
TypeSH
Market value$1.13M
0.49%
Sole
1.66K
Shared
0.00
None
0.00
TAIWAN SEMICONDUCTOR MFG
SOLEShares3.60K
TypeSH
Market value$1.09M
0.47%
Sole
3.60K
Shared
0.00
None
0.00
ISHARES TR
SOLEShares8.62K
TypeSH
Market value$1.03M
0.44%
Sole
8.62K
Shared
0.00
None
0.00
MASTERCARD INCORPORATED
SOLEShares1.73K
TypeSH
Market value$984.8K
0.42%
Sole
1.73K
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
NVIDIA CORPORATIONSOLE | COM | 635.15K | SH | $118.46M 50.80% | 635.15K | 0.00 | 0.00 |
ADVANCED MICRO DEVICES INCSOLE | COM | 121.77K | SH | $26.08M 11.18% | 121.77K | 0.00 | 0.00 |
MICROSOFT CORPSOLE | COM | 22.13K | SH | $10.70M 4.59% | 22.13K | 0.00 | 0.00 |
QUALCOMM INCSOLE | COM | 35K | SH | $5.99M 2.57% | 35K | 0.00 | 0.00 |
ISHARES TRSOLE | RUS 1000 GRW ETF | 11.03K | SH | $5.22M 2.24% | 11.03K | 0.00 | 0.00 |
AMAZON COM INCSOLE | COM | 21.09K | SH | $4.87M 2.09% | 21.09K | 0.00 | 0.00 |
APPLE INCSOLE | COM | 12.75K | SH | $3.47M 1.49% | 12.75K | 0.00 | 0.00 |
MARVELL TECHNOLOGY INCSOLE | COM | 40K | SH | $3.40M 1.46% | 40K | 0.00 | 0.00 |
ALPHABET INCSOLE | CAP STK CL A | 10.71K | SH | $3.35M 1.44% | 10.71K | 0.00 | 0.00 |
ISHARES TRSOLE | RUS 1000 VAL ETF | 13.38K | SH | $2.81M 1.21% | 13.38K | 0.00 | 0.00 |
BERKSHIRE HATHAWAY INC DELSOLE | CL B NEW | 4.85K | SH | $2.44M 1.05% | 4.85K | 0.00 | 0.00 |
DBX ETF TRSOLE | XTRACK MSCI EAFE | 45.63K | SH | $2.20M 0.94% | 45.63K | 0.00 | 0.00 |
OPORTUN FINL CORPSOLE | COM | 396.77K | SH | $2.10M 0.90% | 396.77K | 0.00 | 0.00 |
UBER TECHNOLOGIES INCSOLE | COM | 25K | SH | $2.04M 0.88% | 25K | 0.00 | 0.00 |
SPDR GOLD TRSOLE | GOLD SHS | 4.81K | SH | $1.91M 0.82% | 4.81K | 0.00 | 0.00 |
WALMART INCSOLE | COM | 15.85K | SH | $1.77M 0.76% | 15.85K | 0.00 | 0.00 |
ALPHABET INCDFND | CAP STK CL C | 4.92K | SH | $1.54M 0.66% | 4.92K | 0.00 | 0.00 |
ISHARES TRSOLE | 7-10 YR TRSY BD | 13.91K | SH | $1.34M 0.57% | 13.91K | 0.00 | 0.00 |
JPMORGAN CHASE & CO.SOLE | COM | 3.80K | SH | $1.22M 0.53% | 3.80K | 0.00 | 0.00 |
ISHARES TRSOLE | JPMORGAN USD EMG | 12.18K | SH | $1.17M 0.50% | 12.18K | 0.00 | 0.00 |
INVESCO QQQ TRSOLE | UNIT SER 1 | 1.85K | SH | $1.13M 0.49% | 1.85K | 0.00 | 0.00 |
SPDR S&P 500 ETF TRSOLE | TR UNIT | 1.66K | SH | $1.13M 0.49% | 1.66K | 0.00 | 0.00 |
TAIWAN SEMICONDUCTOR MFGSOLE | SPONSORED ADS | 3.60K | SH | $1.09M 0.47% | 3.60K | 0.00 | 0.00 |
ISHARES TRSOLE | 3 7 YR TREAS BD | 8.62K | SH | $1.03M 0.44% | 8.62K | 0.00 | 0.00 |
MASTERCARD INCORPORATEDSOLE | CL A | 1.73K | SH | $984.8K 0.42% | 1.73K | 0.00 | 0.00 |
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