Steginsky Capital LLC

In its 13F for Q2 2026 (holdings as of June 30, 2026, filed July 9, 2026), Steginsky Capital LLC reported 8 stock positions worth $666.3 million. Its top holding was Alphabet Class C (GOOG) at 36.6% of the portfolio, followed by Costco Wholesale (COST, 19.0%) and Markel (MKL, 13.3%). Compared with Q1 2026, it added to 6 and reduced 2. The biggest buy was Alphabet Class C (GOOG, shares +1%) and the biggest sale Costco Wholesale (COST, shares −0%).

Most Recent 13F
Q2 2026
Location
PORT WASHINGTON, NY
CIK
0001120048
Portfolio Value
$666.3M (Q2 2026)
SEC Filing
0001120048-26-000003 ↗ filed Jul 9, 2026

Holdings Value

0$200.0M$400.0M$600.0M$800.0M Q1 2024: $415.3M Q1 2024 Q2 2024: $435.3M Q2 2024 Q3 2024: $440.6M Q3 2024 Q4 2024: $466.9M Q4 2024 Q1 2025: $447.2M Q1 2025 Q2 2025: $489.1M Q2 2025 Q3 2025: $544.6M Q3 2025 Q4 2025: $593.4M Q4 2025 Q1 2026: $605.1M Q1 2026 Q2 2026: $666.3M $666.3M Q2 2026

Holdings 8 stocks · $666.3M
GOOG Alphabet Inc. Class C 36.56% 689,320 $243.6M Add +0.8%
COST Costco Wholesale Corp. 18.99% 135,271 $126.5M Reduce -0.1%
MKL Markel Group Inc. 13.31% 45,406 $88.7M Add +5.9%
FAST Fastenal Co. 12.39% 1,719,217 $82.6M Add +4.9%
MLM Martin Marietta Materials 11.99% 138,549 $79.9M Add +8.0%
BRK.B Berkshire Hathaway Inc. Class B 5.59% 74,430 $37.2M Reduce -0.2%
GOOGL Alphabet Inc. Class A 0.71% 13,327 $4.8M Add +1.8%
BRK.A Berkshire Hathaway Inc. Class A 0.45% 4 $3.0M Add +300.0%

Portfolio Sells Q1 2026 → Q2 2026
COST Costco Wholesale Corp. Reduce -0.1% 18.99% −3.31
BRK.B Berkshire Hathaway Inc. Class B Reduce -0.2% 5.59% −0.32

Portfolio Buys Q1 2026 → Q2 2026
GOOG Alphabet Inc. Class C Add +0.8% 36.56% +4.12
BRK.A Berkshire Hathaway Inc. Class A Add +300.0% 0.45% +0.33
GOOGL Alphabet Inc. Class A Add +1.8% 0.71% +0.09
FAST Fastenal Co. Add +4.9% 12.39% −0.17
MKL Markel Group Inc. Add +5.9% 13.31% −0.25
MLM Martin Marietta Materials Add +8.0% 11.99% −0.49

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 8$666.3MGOOG, COST, MKL, FAST, MLM
Q1 2026 8$605.1MGOOG, COST, MKL, FAST, MLM
Q4 2025 8$593.4MGOOG, COST, MKL, MLM, FAST
Q3 2025 8$544.6MGOOG, COST, MKL, MLM, FAST
Q2 2025 8$489.1MCOST, GOOG, MKL, MLM, FAST
Q1 2025 7$447.2MCOST, GOOG, MKL, FAST, MLM
Q4 2024 7$466.9MCOST, GOOG, MKL, MLM, FAST
Q3 2024 7$440.6MCOST, GOOG, MKL, MLM, FAST
Q2 2024 7$435.3MCOST, GOOG, MKL, MLM, FAST
Q1 2024 7$415.3MCOST, GOOG, MLM, MKL, FAST