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Super Investors OBERNDORF WILLIAM E
OW

OBERNDORF WILLIAM E

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$55M
Positions
8
Quarter ended
June 30, 2026
Filed
August 13, 2026

Reported portfolio value by quarter (49 quarters reported)

$223M $15.4M
Q2 14 Q4 16 Q2 19 Q4 21 Q2 24 Q2 26

$15.4M in Q2 2014 → $55M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
Unitedhealth Group Inc 26.9% Unchanged 35,553 $14.8M
Guidewire Software Inc 16.1% Added 17% 71,997 $8.86M
Amazon Com Inc. 15.6% Unchanged 36,031 $8.59M
VS Veeva Sys Inc 14.6% Unchanged 45,153 $8.01M
SP Sprott Physical Gold Tr 12.3% Unchanged 224,439 $6.77M
Alphabet Inc. 8.2% New 12,719 $4.49M
Monday Com Ltd 4.8% New 36,749 $2.66M
Autodesk Inc 1.6% Trimmed 83% 4,425 $860K

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed August 13, 2026

Company Action Shares changed Value of change % of portfolio
Atlassian Corporation Exited −70,645 −$4.82M —
Alphabet Inc. New +12,719 +$4.49M 8.2%
Autodesk Inc Trimmed −21,795 −$4.24M 1.6%
Monday Com Ltd New +36,749 +$2.66M 4.8%
Guidewire Software Inc Added +10,246 +$1.26M 16.1%

Q1 2026

quarter ended March 31, 2026 · filed May 14, 2026

Company Action Shares changed Value of change % of portfolio
Monday Com Ltd Exited −73,705 −$10.9M —
Guidewire Software Inc New +61,751 +$9.24M 17.3%
SP Sprott Physical Gold Tr Trimmed −186,932 −$6.62M 14.9%
Autodesk Inc Trimmed −15,904 −$3.81M 11.8%
Amazon Com Inc. Trimmed −16,897 −$3.52M 14.1%
VS Veeva Sys Inc Added +15,392 +$2.7M 14.9%
C Confidential Exited +0 — —

Q4 2025

quarter ended December 31, 2025 · filed February 13, 2026

Company Action Shares changed Value of change % of portfolio
SP Sprott Physical Gold Tr Added +189,207 +$6.25M 17.2%
Atlassian Corporation Added +35,251 +$5.72M 14.5%
VS Veeva Sys Inc Trimmed −7,463 −$1.67M 8.4%
Monday Com Ltd Added +3,585 +$529K 13.8%

Q3 2025

quarter ended September 30, 2025 · filed November 13, 2025

Company Action Shares changed Value of change % of portfolio
Unitedhealth Group Inc New +35,553 +$12.3M 16.5%
Datadog Inc Exited −83,094 −$11.2M —
Alphabet Inc. Exited −51,273 −$9.1M —
Atlassian Corporation Trimmed −16,998 −$2.71M 7.6%
SP Sprott Physical Gold Tr Added +61,090 +$1.81M 8.9%
Monday Com Ltd Added +6,084 +$1.18M 18.3%

Q2 2025

quarter ended June 30, 2025 · filed August 11, 2025

Company Action Shares changed Value of change % of portfolio
Alphabet Inc. New +51,273 +$9.1M 10.1%
VS Veeva Sys Inc Trimmed −29,119 −$8.39M 11.8%
Appfolio Inc Exited −24,184 −$5.32M —
Mongodb Inc Exited −27,797 −$4.88M —
Monday Com Ltd Added +13,754 +$4.33M 22.3%
Amazon Com Inc. Trimmed −18,821 −$4.13M 12.8%
SP Sprott Physical Gold Tr New +161,074 +$4.08M 4.5%
Autodesk Inc Added +10,895 +$3.37M 14.4%
Datadog Inc Added +10,620 +$1.43M 12.3%

Q1 2025

quarter ended March 31, 2025 · filed May 14, 2025

Company Action Shares changed Value of change % of portfolio
Datadog Inc New +72,474 +$7.19M 9.2%
Mongodb Inc New +27,797 +$4.88M 6.3%
Monday Com Ltd Added +19,103 +$4.65M 15.7%
Appfolio Inc Added +20,245 +$4.45M 6.8%
Autodesk Inc Added +3,726 +$975K 10.5%
Atlassian Corporation Trimmed −3,500 −$743K 14.3%
VS Veeva Sys Inc Trimmed −811 −$188K 19.7%

Q4 2024

quarter ended December 31, 2024 · filed February 18, 2025

Company Action Shares changed Value of change % of portfolio
Datadog Inc Exited −96,700 −$11.1M —
Atlassian Corporation Trimmed −38,000 −$9.25M 22.7%
Shopify Inc Exited −59,400 −$4.76M —

Q3 2024

quarter ended September 30, 2024 · filed November 13, 2024

Company Action Shares changed Value of change % of portfolio
Autodesk Inc New +27,503 +$7.58M 10.0%
Atlassian Corporation Added +37,758 +$6M 19.8%
Shopify Inc New +59,400 +$4.76M 6.3%
Amazon.com Inc. Added +23,489 +$4.38M 17.7%
Smartsheet Inc Exited −93,955 −$4.14M —
VS Veeva Sys Inc Added +16,374 +$3.44M 18.7%
Transdigm Group Inc Exited −2,040 −$2.61M —
Zoominfo Technologies Inc Exited −140,485 −$1.79M —
Datadog Inc Added +8,278 +$952K 14.8%

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