Summa Corp.

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed January 23, 2025), Summa Corp. reported 61 stock positions worth $203.9 million. Its top holding was Nvidia (NVDA) at 53.4% of the portfolio, followed by Advanced Micro Devices (AMD, 7.5%) and Microsoft (MSFT, 7.1%). Compared with Q3 2024, it opened 4 new positions, sold out of 7, added to 9 and reduced 13. The biggest buy was a new position in PIMCO Enhanced Short Maturit (MINT) and the biggest sale an exit from Marathon Oil (MRO).

Most Recent 13F
Q2 2026
Location
TOMBALL, TX
CIK
0001954929
Portfolio Value
$203.9M (Q4 2024)
SEC Filing
0001214659-25-001191 ↗ filed Jan 23, 2025

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $183.1M Q1 2024 Q2 2024: $206.3M Q2 2024 Q3 2024: $208.6M Q3 2024 Q4 2024: $203.9M $203.9M Q4 2024 Q1 2025: $172.9M Q1 2025 Q2 2025: $192.4M Q2 2025 Q3 2025: $227.4M Q3 2025 Q4 2025: $233.2M Q4 2025 Q1 2026: $241.9M Q1 2026 Q2 2026: $318.6M Q2 2026

Holdings 61 stocks · $203.9M

NVDA Nvidia Corp. 53.38% 810,560 $108.9M Reduce -1.0%
AMD Advanced Micro Devices 7.53% 127,200 $15.4M Add +3.2%
MSFT Microsoft Corp. 7.09% 34,306 $14.5M Reduce -3.1%
QCOM Qualcomm Inc. 3.85% 51,122 $7.9M No change
VLO Valero Energy Corp. 3.09% 51,400 $6.3M No change
BABA Alibaba Group Holding-SP ADR 2.31% 55,673 $4.7M Reduce -19.3%
MRVL Marvell Technology Inc. 2.30% 42,400 $4.7M Reduce -2.2%
APA Apa Corp. 2.15% 190,000 $4.4M No change
AAPL Apple Inc. 1.41% 11,491 $2.9M Add +0.1%
OPRT Oportun Financial Corp. 1.07% 563,808 $2.2M No change
BRK.B Berkshire Hathaway Inc. Class B 1.00% 4,502 $2.0M Reduce -5.5%
AMZN Amazon.com Inc. 0.87% 8,112 $1.8M Reduce -10.5%
DVN Devon Energy Corp. 0.82% 51,000 $1.7M No change
UBER Uber Technologies Inc. 0.74% 25,107 $1.5M Reduce -0.3%
GOOGL Alphabet Inc. Class A 0.73% 7,868 $1.5M Reduce -6.0%
WMT Walmart Inc. 0.69% 15,612 $1.4M Reduce -6.0%
JPM JPMorgan Chase & Co. 0.49% 4,133 $991K No change
MA Mastercard Inc. Class A 0.45% 1,736 $914K No change
TMO Thermo Fisher Scientific Inc. 0.37% 1,456 $757K Add +7.4%
IEI iShares 3-7 Year Treasury Bo 0.36% 6,370 $736K No change
UNH Unitedhealth Group Inc. 0.36% 1,450 $733K Reduce -3.1%
ADBE Adobe Inc. 0.35% 1,626 $723K No change
GOOG Alphabet Inc. Class C 0.35% 3,700 $705K Reduce -11.9%
XOM Exxon Mobil Corp. 0.34% 6,500 $699K No change
LQD Ishr Ibx Usd Invgd CB ETF-Ui 0.34% 6,450 $689K Add +18.4%
AGG iShares Core U.S. Aggregate 0.33% 6,900 $669K No change
IEF iShares 7-10 Year Treasury B 0.31% 6,930 $641K No change
VWOB Vanguard Emerg MKTS Gov BND 0.31% 10,000 $632K Add +17.6%
WFC Wells Fargo & Co. 0.30% 8,700 $611K No change
O Realty Income Corp. 0.29% 11,250 $601K No change
VYM Vanguard High DVD Yield ETF 0.29% 4,700 $600K No change
SLQD iShares 0-5 YR Inv GRD Corp. 0.29% 12,000 $597K No change
MINT PIMCO Enhanced Short Maturit 0.28% 5,680 $570K New
VCSH Vanguard S/T Corp. Bond ETF 0.25% 6,500 $507K No change
MRK Merck & Co. Inc. 0.25% 5,080 $506K New
PG The Procter & Gamble Co. 0.25% 3,000 $503K No change
T AT&T Inc. 0.25% 22,000 $501K Add +0.5%
XBMEX BlackRock Health Sciences 0.24% 13,047 $495K No change
SHY iShares 1-3 Year Treasury Bo 0.24% 6,000 $492K No change
COST Costco Wholesale Corp. 0.24% 531 $487K Reduce -42.5%
EPD Enterprise Products Partners 0.24% 15,500 $486K No change
BOND PIMCO Active Bond Exchange-T 0.22% 5,000 $452K No change
TGT Target Corp. 0.22% 3,300 $446K Add +83.3%
JNJ Johnson & Johnson 0.21% 3,020 $437K No change
TLT iShares 20+ Year Treasury BD 0.21% 4,850 $424K No change
AAXJ iShares MSCI All Country Asi 0.19% 5,500 $397K No change
V Visa Inc. Class A 0.18% 1,179 $373K No change
SBUX Starbucks Corp. 0.18% 4,000 $365K No change
FDX FedEx Corp. 0.17% 1,250 $352K No change
ORCL Oracle Corp. 0.17% 2,052 $342K Add +35.3%
IWF iShares Russell 1000 Growth 0.16% 798 $320K New
NOW ServiceNow Inc. 0.16% 302 $320K Reduce -21.4%
SHOP Shopify Inc. Class A 0.16% 2,978 $317K No change
NFLX Netflix Inc. 0.15% 344 $307K No change
QQQ Invesco QQQ Trust Series 1 0.14% 575 $294K No change
ABT Abbott Laboratories 0.12% 2,213 $250K No change
ZTS Zoetis Inc. 0.11% 1,424 $232K Add +37.3%
MSCI MSCI Inc. 0.11% 382 $229K No change
ACN Accenture PLC Class A 0.11% 616 $217K No change
SOXX iShares Semiconductor ETF 0.10% 950 $205K No change
ABNB Airbnb Inc. Class A 0.10% 1,532 $201K New

Portfolio Sells Q3 2024 → Q4 2024

MRO Marathon Oil Corp. Sold out 0.00% −2.55
BABA Alibaba Group Holding-SP ADR Reduce -19.3% 2.31% −1.20
PFF iShares Preferred & Income S Sold out 0.00% −0.25
BXMT Blackstone Mortgage Tru Class A Sold out 0.00% −0.21
JPST JPMorgan Ultra-Short Income Sold out 0.00% −0.19
UAL United Airlines Holdings Inc. Sold out 0.00% −0.18
NAD Nuveen Quality Municipal Inc. Sold out 0.00% −0.18
UBER Uber Technologies Inc. Reduce -0.3% 0.74% −0.16
COST Costco Wholesale Corp. Reduce -42.5% 0.24% −0.15
DG Dollar General Corp. Sold out 0.00% −0.11
UNH Unitedhealth Group Inc. Reduce -3.1% 0.36% −0.06
BRK.B Berkshire Hathaway Inc. Class B Reduce -5.5% 1.00% −0.05
NOW ServiceNow Inc. Reduce -21.4% 0.16% −0.01
GOOG Alphabet Inc. Class C Reduce -11.9% 0.35% +0.01
MSFT Microsoft Corp. Reduce -3.1% 7.09% +0.02
WMT Walmart Inc. Reduce -6.0% 0.69% +0.05
AMZN Amazon.com Inc. Reduce -10.5% 0.87% +0.06
GOOGL Alphabet Inc. Class A Reduce -6.0% 0.73% +0.07
MRVL Marvell Technology Inc. Reduce -2.2% 2.30% +0.80
NVDA Nvidia Corp. Reduce -1.0% 53.38% +5.70

Portfolio Buys Q3 2024 → Q4 2024

MINT PIMCO Enhanced Short Maturit New 0.28% +0.28
MRK Merck & Co. Inc. New 0.25% +0.25
IWF iShares Russell 1000 Growth New 0.16% +0.16
AAPL Apple Inc. Add +0.1% 1.41% +0.13
ABNB Airbnb Inc. Class A New 0.10% +0.10
TGT Target Corp. Add +83.3% 0.22% +0.08
ORCL Oracle Corp. Add +35.3% 0.17% +0.04
LQD Ishr Ibx Usd Invgd CB ETF-Ui Add +18.4% 0.34% +0.04
VWOB Vanguard Emerg MKTS Gov BND Add +17.6% 0.31% +0.04
ZTS Zoetis Inc. Add +37.3% 0.11% +0.02
T AT&T Inc. Add +0.5% 0.25% +0.01
TMO Thermo Fisher Scientific Inc. Add +7.4% 0.37% −0.03
AMD Advanced Micro Devices Add +3.2% 7.53% −2.16

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 83$318.6MNVDA, AMD, MRVL, MSFT, SPY
Q1 2026 83$241.9MNVDA, AMD, MSFT, SPY, QUAL
Q4 2025 77$233.2MNVDA, AMD, MSFT, QCOM, IWF
Q3 2025 76$227.4MNVDA, AMD, MSFT, BABA, QCOM
Q2 2025 76$192.4MNVDA, AMD, MSFT, QCOM, IWF
Q1 2025 59$172.9MNVDA, AMD, MSFT, BABA, QCOM
Q4 2024 61$203.9MNVDA, AMD, MSFT, QCOM, VLO
Q3 2024 64$208.6MNVDA, AMD, MSFT, QCOM, BABA
Q2 2024 60$206.3MNVDA, AMD, MSFT, QCOM, VLO
Q1 2024 59$183.1MNVDA, AMD, MSFT, VLO, MRO