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Lane Kasselman 13F portfolio summary

Lane Kasselman of GREENBRIER PARTNERS CAPITAL MANAGEMENT, LLC has 11 current stock holdings with a reported portfolio value of $1.33B. The portfolio 1 year return is +12.61%. Top holdings include AAPL (21.60%), META (15.55%), COST (15.54%), AMZN (11.06%), GOOG (10.89%).

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Lane Kasselman 13F Portfolio

GREENBRIER PARTNERS CAPITAL MANAGEMENT, LLC
Latest SEC 13F filing: 2026-06-30

Lane Kasselman runs GREENBRIER PARTNERS CAPITAL MANAGEMENT, LLC and currently holds 11 stock positions, which is fewer than the average of 229 among the investors we track. The portfolio is valued at approximately $1.33B. Their top holdings are AAPL, META, COST, AMZN, GOOG. The top five represent 74.6% of reported portfolio weight. Lane Kasselman ranks #620 out of 1000 investors tracked by Alpha Score. They added to 2 existing positions. They trimmed 9 positions. Their current best-performing preview position is GOOGL with returns of +24.28%.

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Top 5 Holdings
AAPL21.6%
META15.6%
COST15.5%
AMZN11.1%
GOOG10.9%
Top 5: 74.6%
Portfolio Returns
1 Year
+12.61%
#910/1000
3 Year
+72.10%
#478/1000
5 Year
+62.96%
#621/1000

Portfolio Value

$1.33B

Alpha Score

50.2

#620 of 1000

Holdings

11

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Lane Kasselman Current 13F Holdings

Reported holdings from GREENBRIER PARTNERS CAPITAL MANAGEMENT, LLC's latest SEC 13F filing, ranked by portfolio weight.

11 stock holdings

HoldingWeightAvg BuyCurrentReturnQuarter Change
AAPL
APPLE INC
21.60%$16.28$332.27+1,940.97%
Trimmed
-15.63%
META
META PLATFORMS INC
15.55%$28.44$648.03+2,178.59%
Trimmed
-6.73%
COST
COSTCO WHOLESALE CORPORATION
15.54%$125.30$904.77+622.08%
Trimmed
-0.33%
AMZN
AMAZON COM INC
11.06%$41.07$256.78+525.23%
Trimmed
-0.33%
GOOG
ALPHABET INC
10.89%$38.01$335.45+782.53%
Trimmed
-11.10%
GOOGL
ALPHABET INC
10.58%$39.01$338.50+767.73%
Trimmed
-11.64%
SPOT
SPOTIFY TECHNOLOGY S A
3.78%$358.38$525.91+46.75%
Added
+211.51%
MKL
MARKEL GROUP INC
3.74%$542.97$1,786.04+228.94%
Trimmed
-0.33%
MSFT
MICROSOFT CORP
3.31%$205.10$495.63+141.65%
Trimmed
-0.33%
BRK-B
BERKSHIRE HATHAWAY INC DEL
3.02%$113.04$510.36+351.49%
Trimmed
-0.33%

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