Old Second National Bank of Aurora 13F Portfolio

CIK 903783 Filing since Q1 2014 Q3 2026 filed Oct 22, 2026
Holdings as of Sep 30, 2026, from the 13F filed Oct 22, 2026.

Portfolio Snapshot

188 positions · Q3 2026

Old Second National Bank of Aurora reported 188 positions worth $311.33M for the quarter ended Sep 30, 2026, down 7.2% on the prior quarter. It opened 10 new positions, added to 20, trimmed 55 and exited 10. Its largest holding is Nvidia Corp at 6.4% of the portfolio.

Portfolio Value
$311.33M
-7.2% QoQ · +2.2% YoY
Positions
188
10 new · 10 sold out
Top 10 Concentration
41.8%
of portfolio value
Largest Position
NVDA 6.4%
Nvidia Corp
Net Buying
-$17.11M
$8.14M bought · $25.25M sold
Turnover
2.5%
of the portfolio traded
Top Sector
Technology
34.8% of value
Track Record
51
quarters on file since Q1 2014

Portfolio Value & Positions

Value Positions

Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.

Sector Allocation

12 sectors
34.75%
Technology
Technology34.75%
Financial Services20.03%
Healthcare9.55%
Industrials9.25%
Consumer Discretionary8.19%
Energy5.23%
Consumer Staples4.76%
Basic Materials3.3%
Utilities2.6%
Real Estate1.99%
Communication Services0.308%
Other0.044%

Quarterly Buying & Selling

Bought Sold

Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.

Position Changes

How many positions were opened, added to, trimmed or closed each quarter.

Sector Allocation Over Time

Share of reported value in each sector at every quarter end.

TechnologyFinancial ServicesHealthcareIndustrialsConsumer DiscretionaryEnergyConsumer StaplesBasic MaterialsUtilitiesReal EstateCommunication ServicesOther

Largest Buys

Q3 2026
Holding Change Change % Trade Value Weight
TSM Taiwan Semiconductor Manufacturing Co Ltd +5,411 +1,313.3% $2.47M 0.853%
META Meta Platforms, Inc. +2,465 +1,621.7% $1.79M 0.61%
PEP Pepsico Inc +6,592 +21.1% $835.34K 1.54%
NOC Northrop Grumman Corp +1,149 +15.7% $555.52K 1.32%
MCD Mcdonalds Corp +1,566 +21.6% $361.65K 0.655%
MPC Marathon Petroleum Corp +899 +96.5% $355.48K 0.233%
PG PROCTER & GAMBLE Co +2,402 +12.1% $348.96K 1.04%
SOFI SoFi Technologies, Inc. +16.0K +6.6% $251.24K 1.3%
CMI Cummins Inc +374 +2.5% $193.20K 2.55%
VIK Viking Holdings Ltd +1,836 +3.8% $143.81K 1.28%

Largest Sells

Q3 2026
Holding Change Change % Trade Value Weight
NVDA Nvidia Corp -15.4K -15.1% $3.52M 6.36%
VLO Valero Energy Corp -6,767 -35.1% $2.62M 1.56%
DHR Danaher Corp -9,831 -81.8% $2.18M 0.155%
JPM Jpmorgan Chase & Co -6,567 -18.5% $2.17M 3.07%
DIS Walt Disney Co -17.5K -91.7% $1.83M 0.054%
AVGO Broadcom Inc. -5,044 -10.1% $1.77M 5.07%
AAPL Apple Inc. -4,389 -8.1% $1.46M 5.3%
GOOGL Alphabet Inc. -3,347 -7.7% $1.15M 4.45%
HON Honeywell International Inc -5,279 -52.3% $1.11M 0.326%
MSFT Microsoft Corp -2,132 -5.6% $1.09M 5.87%

New Positions

Q3 2026
Holding Shares Trade Value Weight
UL Unilever Plc +1,919 $116.54K 0.037%
SPCX Space Exploration Technologies Corp +632 $95.34K 0.031%
BE Bloom Energy Corp +225 $62.32K 0.02%
BDX Becton Dickinson & Co +101 $18.08K <0.01%
AZN Astrazeneca Plc +100 $16.28K <0.01%
CCL Carnival Corp Ltd. +100 $2.45K <0.01%
HONA Honeywell Aerospace Inc. +15 $2.33K <0.01%
KD Kyndryl Holdings, Inc. +88 $991.00 <0.01%
MICC Magnum Ice Cream Co N.V. +16 $285.00 <0.01%
EMBC Embecta Corp. +20 $113.00 <0.01%

Closed Positions

Q3 2026
Holding Shares Sold Trade Value Prior Weight
XOM ExxonMobil Holdings Corp -5,582 $763.17K 0.228%
OKE Oneok Inc -1,178 $102.42K 0.031%
FISV Fiserv Inc -1,395 $68.43K 0.02%
PANW Palo Alto Networks Inc -150 $51.15K 0.015%
INGR Ingredion Inc -413 $39.12K 0.012%
VEEV Veeva Systems Inc -100 $17.75K <0.01%
UNH Unitedhealth Group Inc -29 $12.05K <0.01%
MRNA Moderna, Inc. -100 $7.00K <0.01%
CAG Conagra Brands Inc. -450 $6.06K <0.01%
SJM J M SMUCKER Co -2 $225.00 <0.01%
Holdings · Q3 2026

188 Positions

As ofSep 30, 2026
Value$311.33M
Top 1041.8%
Avg position$1.66M
# Activity
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Showing 1–15 of 188 positions 13F filings on SEC EDGAR

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About Old Second National Bank of Aurora’s 13F Portfolio

What are Old Second National Bank of Aurora’s largest holdings?

As of its Q3 2026 13F filing, Old Second National Bank of Aurora’s five largest positions were Nvidia Corp (NVDA) at 6.4%, Microsoft Corp (MSFT) at 5.9%, Apple Inc. (AAPL) at 5.3%, Broadcom Inc. (AVGO) at 5.1%, Alphabet Inc. (GOOGL) at 4.5% of the reported portfolio.

How much is Old Second National Bank of Aurora’s portfolio worth?

Old Second National Bank of Aurora reported a 13F portfolio worth $311.33M across 188 positions for Q3 2026. That is down 7.2% from the previous quarter.

What did Old Second National Bank of Aurora buy in Q3 2026?

Its largest purchases by value were Taiwan Semiconductor Manufacturing Co Ltd ($2.47M), Meta Platforms, Inc. ($1.79M), Pepsico Inc ($835.34K). It opened 10 new positions.

What did Old Second National Bank of Aurora sell in Q3 2026?

Its largest sales by value were Nvidia Corp ($3.52M), Valero Energy Corp ($2.62M), Danaher Corp ($2.18M). It exited 10 positions entirely.

Where does this data come from?

From the Form 13F-HR reports Old Second National Bank of Aurora files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.

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13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.