account_balance
Investment manager · 13F filer · SEC CIK 1801573
Aufman Associates Inc
Reported value$244Mas of Sep 30, 2026
Positions67 3 new, 3 sold out
Top 10 weight86.5%STX alone is 19%
FiledNov 435 days after quarter end
Portfolio · as of Sep 30, 2026
Where the money is
New or addedTrimmedHeld
STXSeagate Technology Holdings PLC
19.1%
VOOVanguard S&P 500 Index ETF
16.9%
VBVanguard MStar Small-Cap Index ETF
16.9%Added +3%
VEAVanguard Developed Markets Index ETF
14.4%
FNDXSchwab Fundamental US Large Company Index ETF
9.4%Added +5%
VOTVanguard MStar Mid-Cap Growth Index ETF
3.0%
IVViShares Core S&P 500 Index ETF
2.4%
VEUVanguard FTSE All-World ex US Index ETF
1.7%
STXSeagate Technology Holdings PLC
19.1%
VOOVanguard S&P 500 Index ETF
16.9%
VBVanguard MStar Small-Cap Index ETF
16.9%Added +3%
VEAVanguard Developed Markets Index ETF
14.4%
FNDXSchwab Fundamental US Large Company Index ETF
9.4%+5%
VOT3.0%
IVV2.4%
VEU
GOOGMTXBoxes show the top 12 stocks, sized against each other. The bar above shows how much of the fund they are. 13F only covers US-listed stocks, so foreign holdings and short positions are missing.
Show the top 12 as a list
STX Seagate Technology Holdings PLC 19.1% Held
VOO Vanguard S&P 500 Index ETF 16.9% Held
VB Vanguard MStar Small-Cap Index ETF 16.9% Added +3%
VEA Vanguard Developed Markets Index ETF 14.4% Held
FNDX Schwab Fundamental US Large Company Index ETF 9.4% Added +5%
VOT Vanguard MStar Mid-Cap Growth Index ETF 3.0% Held
IVV iShares Core S&P 500 Index ETF 2.4% Trimmed −2%
VEU Vanguard FTSE All-World ex US Index ETF 1.7% Held
GOOG Alphabet Inc. 1.4% Added +3%BRK-B Berkshire Hathaway Inc 1.4% Added +9%AAPL Apple Inc. 1.0% Trimmed −3%MTX Minerals Technologies Inc 1.0% HeldWhat changed
Biggest moves since Jun 30, 2026
Free weekly email
Each week's biggest real insider buys, cluster buys and fund moves, every one dated. One email a week. Unsubscribe in one click.