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Super Investors Alta Advisers Ltd
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Alta Advisers Ltd

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

Portfolio value
$675M
Positions
332
Quarter ended
September 30, 2026
Filed
November 02, 2026

Reported portfolio value by quarter (50 quarters reported)

$675M $6.86M
Q2 13 Q4 15 Q2 19 Q4 21 Q2 24 Q3 26

$256M in Q2 2013 → $675M now. Hover for any quarter.

Holdings

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

Holding % of portfolio Activity Shares Value
Nvidia Corporation 12.7% Added 38% 375,257 $85.7M
VI Vanguard Intl Equity Index F 11.4% Added 14% 641,922 $77M
Amazon Com Inc 5.8% Added 69% 158,381 $39.5M
Apple Inc 5.2% Added 81% 104,799 $34.9M
Alphabet Inc 5.0% Added 65% 99,524 $33.9M
VS Vanguard Scottsdale Fds 4.6% Added 10.0% 626,463 $30.8M
Microsoft Corp 4.1% Added 84% 53,368 $27.4M
Alphabet Inc 2.1% Added 87% 42,155 $14.5M
ST Seagate Technology Hldngs Pl 2.1% Added 29% 15,668 $14.5M
Broadcom Inc 1.8% Added 86% 34,036 $12M
Meta Platforms Inc 1.7% Added 84% 15,789 $11.4M
VI Vanguard Index Fds 1.4% Unchanged 13,493 $9.46M
Micron Technology Inc 1.3% Added 85% 8,112 $8.64M
Tesla Inc 1.1% Added 85% 20,224 $7.18M
Advanced Micro Devices Inc 1.1% Added 83% 11,726 $7.17M
EL Eli Lilly & Co 1.0% Added 85% 5,697 $6.59M
BH Berkshire Hathaway Inc Del 1.0% Added 84% 13,122 $6.53M
Jpmorgan Chase & Co 0.9% Added 79% 19,106 $6.32M
VI Vanguard Intl Equity Index F 0.7% Unchanged 59,988 $4.98M
Exxonmobil Holdings Corp 0.7% New 29,148 $4.74M
Johnson & Johnson 0.7% Added 85% 17,284 $4.58M
Visa Inc 0.6% Added 78% 11,798 $4.24M
Intel Corp 0.6% Added 89% 34,328 $4.13M
Abbvie Inc 0.5% Added 88% 12,745 $3.33M
Walmart Inc 0.5% Added 83% 31,557 $3.28M
Mastercard Incorporated 0.5% Added 77% 5,749 $3.17M
Palantir Technologies Inc 0.5% Added 84% 16,468 $3.08M
CS Cisco Sys Inc 0.5% Added 82% 28,364 $3.05M
Lam Research Corp 0.4% Added 81% 9,006 $2.96M
AM Applied Matls Inc 0.4% Added 77% 5,718 $2.92M
Costco Wholesale Corporation 0.4% Added 91% 3,175 $2.89M
Chevron Corporation 0.4% Added 85% 13,966 $2.85M
Caterpillar Inc 0.4% Added 76% 3,373 $2.73M
BO Bank Of Amer Corp 0.4% Added 86% 48,321 $2.63M
Merck & Co Inc 0.4% Added 86% 17,857 $2.59M
Unitedhealth Group Inc 0.4% Added 80% 6,515 $2.39M
Procter & Gamble Co 0.4% Added 86% 16,400 $2.38M
Coca Cola Co 0.4% Added 88% 27,610 $2.38M
GA Ge Aerospace 0.3% Added 88% 7,471 $2.33M
Palo Alto Networks Inc 0.3% Added 103% 5,819 $2.31M
PM Philip Morris Intl Inc 0.3% Added 88% 11,240 $2.14M
Netflix Inc. 0.3% Added 92% 30,235 $2.1M
Home Depot Inc 0.3% Added 84% 7,130 $2.03M
CH Crowdstrike Hldgs Inc 0.3% Added 661% 7,294 $1.93M
Goldman Sachs Group Inc 0.3% Added 86% 2,115 $1.9M
Sandisk Corp 0.3% Added 92% 1,066 $1.85M
Ge Vernova Inc 0.3% Added 86% 1,936 $1.84M
Kla Corp 0.3% Added 80% 9,425 $1.84M
TI Texas Instrs Inc 0.3% Added 81% 6,534 $1.83M
Thermo Fisher Scientific Inc 0.3% Added 77% 2,668 $1.8M
Wells Fargo & Co 0.3% Added 75% 21,747 $1.74M
Oracle Corp 0.2% Added 74% 12,188 $1.67M
Marvell Technology Inc 0.2% Added 81% 6,323 $1.67M
Amgen Inc 0.2% Added 86% 3,919 $1.65M
Morgan Stanley 0.2% Added 86% 8,566 $1.61M
Linde PLC 0.2% Added 85% 3,317 $1.57M
Citigroup Inc 0.2% Added 68% 12,042 $1.56M
Arista Networks Inc 0.2% Added 84% 7,436 $1.51M
Amphenol Corp 0.2% Added 272% 17,692 $1.49M
IB International Business Machs 0.2% Added 89% 6,779 $1.49M

Showing top 60 of 332 positions.

Timeline of changes

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

Q3 2026

quarter ended September 30, 2026 · filed November 02, 2026

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Added +102,819 +$23.5M 12.7%
Amazon Com Inc Added +64,404 +$16M 5.8%
Apple Inc Added +47,031 +$15.7M 5.2%
Alphabet Inc Added +39,135 +$13.3M 5.0%
Microsoft Corp Added +24,357 +$12.5M 4.1%
VI Vanguard Intl Equity Index F Added +80,006 +$9.59M 11.4%
Western Digital Corp Trimmed −15,849 −$7.2M 0.2%
Alphabet Inc Added +19,576 +$6.74M 2.1%
Broadcom Inc Added +15,757 +$5.53M 1.8%
Meta Platforms Inc Added +7,229 +$5.24M 1.7%

Showing the 10 largest of 331 changes.

Q2 2026

quarter ended June 30, 2026 · filed August 12, 2026

Company Action Shares changed Value of change % of portfolio
Nvidia Corporation Added +177,316 +$35.5M 12.4%
Alphabet Inc Added +41,986 +$14.8M 4.8%
Amazon Com Inc Added +55,900 +$13.3M 5.1%
VI Vanguard Intl Equity Index F Added +71,706 +$11.3M 20.0%
ST Seagate Technology Hldngs Pl Added +11,355 +$11M 2.7%
Western Digital Corp Added +17,007 +$10.9M 2.7%
VS Vanguard Scottsdale Fds Added +95,658 +$5.57M 7.5%
Exxon Mobil Corp Exited −16,458 −$2.79M —
Kla Corp Added +4,725 +$1.43M 0.4%
HI Honeywell Intl Inc Exited −2,457 −$555K —

Showing the 10 largest of 50 changes.

Q1 2026

quarter ended March 31, 2026 · filed May 07, 2026

Company Action Shares changed Value of change % of portfolio
VI Vanguard Intl Equity Index F Added +76,599 +$8.03M 18.6%
VS Vanguard Scottsdale Fds Added +38,528 +$1.98M 8.8%
VI Vanguard Index Fds Trimmed −612 −$366K 3.1%
Sandisk Corp New +555 +$353K 0.1%
MP Marathon Pete Corp New +1,157 +$283K 0.1%
Valero Energy Corp New +1,142 +$282K 0.1%
Phillips 66 New +1,545 +$281K 0.1%
Cheniere Energy Inc New +937 +$266K 0.1%
Autodesk Inc Exited −807 −$239K —
Corteva Inc New +2,785 +$233K 0.1%

Showing the 10 largest of 40 changes.

Q4 2025

quarter ended December 31, 2025 · filed February 09, 2026

Company Action Shares changed Value of change % of portfolio
VI Vanguard Intl Equity Index F Added +263,956 +$27.7M 15.7%
VS Vanguard Scottsdale Fds Trimmed −227,699 −$11.7M 8.1%
Nvidia Corporation Trimmed −29,000 −$5.41M 6.4%
Apple Inc Trimmed −17,600 −$4.78M 5.7%
Microsoft Corp Trimmed −9,380 −$4.54M 5.0%
Amazon Com Inc Trimmed −10,500 −$2.42M 3.2%
Alphabet Inc Trimmed −6,900 −$2.16M 2.6%
Broadcom Inc Trimmed −5,720 −$1.98M 2.3%
Alphabet Inc Trimmed −5,500 −$1.73M 2.1%
Meta Platforms Inc Trimmed −2,520 −$1.66M 2.0%

Showing the 10 largest of 245 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 31, 2025

Company Action Shares changed Value of change % of portfolio
VS Vanguard Scottsdale Fds Added +264,373 +$15.1M 11.6%
VI Vanguard Intl Equity Index F Added +86,780 +$8.88M 4.7%
Apple Inc Trimmed −1,500 −$382K 5.9%
VI Vanguard Index Fds Trimmed −578 −$354K 2.8%
ST Seagate Technology Hldngs Pl New +1,211 +$286K 0.1%
MP Monolithic Pwr Sys Inc New +265 +$244K 0.1%
CN Chevron Corp New Added +1,535 +$238K 0.5%
Western Digital Corp New +1,965 +$236K 0.1%
Verisk Analytics Inc Exited −757 −$236K —
Ebay Inc. New +2,552 +$232K 0.1%

Showing the 10 largest of 51 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 25, 2025

Company Action Shares changed Value of change % of portfolio
VS Vanguard Scottsdale Fds Added +185,903 +$10.7M 8.2%
VI Vanguard Intl Equity Index F New +62,875 +$5.9M 2.1%
Coinbase Global Inc New +1,086 +$381K 0.1%
RM Robinhood Mkts Inc New +3,937 +$369K 0.1%
OA Oreilly Automotive Inc Added +4,032 +$363K 0.1%
Cloudflare Inc New +1,735 +$340K 0.1%
CO Capital One Finl Corp Added +1,477 +$314K 0.3%
Roblox Corp New +2,942 +$309K 0.1%
Axon Enterprise Inc New +348 +$288K 0.1%
QS Quanta Svcs Inc New +695 +$263K 0.1%

Showing the 10 largest of 43 changes.

Q1 2025

quarter ended March 31, 2025 · filed April 25, 2025

Company Action Shares changed Value of change % of portfolio
Apple Inc Added +26,630 +$5.92M 7.3%
Microsoft Corp Added +13,470 +$5.06M 6.1%
Nvidia Corporation Added +42,150 +$4.57M 5.7%
Amazon Com Inc Added +17,180 +$3.27M 3.9%
Meta Platforms Inc Added +3,800 +$2.19M 2.7%
BH Berkshire Hathaway Inc Del Added +3,400 +$1.81M 2.1%
Alphabet Inc Added +10,100 +$1.56M 1.9%
Broadcom Inc Added +8,600 +$1.44M 1.7%
Jpmorgan Chase & Co. Added +5,200 +$1.28M 1.5%
EL Eli Lilly & Co Added +1,500 +$1.24M 1.4%

Showing the 10 largest of 229 changes.

Q4 2024

quarter ended December 31, 2024 · filed February 14, 2025

Company Action Shares changed Value of change % of portfolio
VS Vanguard Scottsdale Fds Trimmed −465,910 −$27.1M 7.9%
VI Vanguard Index Fds Trimmed −34,573 −$18.6M 5.4%
VI Vanguard Intl Equity Index F Trimmed −153,561 −$8.82M 2.6%
Apple Inc Added +7,190 +$1.8M 8.0%
Nvidia Corporation Added +11,912 +$1.6M 6.9%
Microsoft Corp Added +3,724 +$1.57M 6.6%
Amazon Com Inc Added +4,707 +$1.03M 4.3%
Meta Platforms Inc Added +1,080 +$632K 2.7%
Alphabet Inc Added +3,279 +$621K 2.3%
Broadcom Inc Added +2,589 +$600K 2.3%

Showing the 10 largest of 414 changes.

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