What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
CIK: 0000903783
Total reported value
$530.5M
$530.5M
288 檔
24.4%
The Q4 2025 SEC filing reveals that Old Second National Bank Of Aurora held a total portfolio value of $530.5M, covering 288 public equity positions.
In Q4 2025, Old Second National Bank Of Aurora displayed an active expansion posture, initiating 2 new positions and adding to 28 existing holdings, outstripping position reductions.
Showing top 200 holdings (of 288 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | MFSI | Mfs Active International | ETF-Other | 8.36% | -0.10% | +2.07% | |
| 2 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 6.13% | +0.12% | -0.40% | |
| 3 | NVDA | Nvidia CORP | Stock-Tech | 4.07% | +0.02% | -15.20% | |
| 4 | AVGO | Broadcom Inc | Stock-Tech | 3.84% | +0.12% | -0.10% | |
| 5 | MSFT | Microsoft CORP | Stock-Tech | 3.48% | -0.11% | -2.31% | |
| 6 | AAPL | Apple Inc | Stock-Tech | 3.06% | +0.01% | -0.55% | |
| 7 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 3.01% | +0.15% | -11.19% | |
| 8 | VGK | Vanguard Ftse Europe ETF | ETF-Other | 2.67% | -0.25% | -1.02% | |
| 9 | FLIN | Franklin Ftse India ETF | ETF-Other | 2.49% | -2.22% | +3.29% | |
| 10 | JPM | Jpmorgan Chase & Co | Stock-Financials | 2.44% | -0.02% | -1.14% | |
| 11 | BSCQ | Invesco Bulletshares 2026 Cb | ETF-Other | 2.32% | — | -0.70% | |
| 12 | LLY | Eli Lilly & Co | Stock-Healthcare | 1.95% | +0.24% | -0.70% | |
| 13 | MS | Morgan Stanley | Stock-Financials | 1.87% | +0.17% | +0.18% | |
| 14 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 1.77% | +0.06% | +27.54% | |
| 15 | CMI | Cummins Inc | Stock-Industrials | 1.73% | +0.16% | -0.02% | |
| 16 | KLAC | Kla CORP | Stock-Tech | 1.67% | +1.08% | -1.43% | |
| 17 | BSCR | Invesco Bulletshares 2027 Cb | ETF-Other | 1.65% | -0.38% | +9.79% | |
| 18 | VEA | Vanguard Ftse Developed ETF | ETF-Other | 1.63% | +0.08% | +1.92% | |
| 19 | BLK | Blackrock Inc | Stock-Financials | 1.59% | -0.16% | +0.87% | |
| 20 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.59% | +0.04% | +1.39% | |
| 21 | GLW | Corning Inc | Stock-Tech | 1.43% | +0.02% | -0.13% | |
| 22 | VT | Vanguard Tot World Stk ETF | ETF-Other | 1.42% | -0.01% | -0.00% | |
| 23 | VNQ | Vanguard Real Estate ETF | ETF-Other | 1.29% | -0.03% | -8.53% | |
| 24 | JNJ | Johnson & Johnson | Stock-Healthcare | 1.20% | -0.14% | +0.82% | |
| 25 | BX | Blackstone Inc | Stock-Financials | 1.16% | +0.13% | +3.01% | |
| 26 | BSJQ | Invesco Bulletshares 2026 Hy | ETF-Other | 1.08% | — | EXIT | |
| 27 | PHM | Pultegroup Inc | Stock-Consumer Disc | 0.96% | +0.06% | +0.89% | |
| 28 | PEP | Pepsico Inc | Stock-Consumer Staples | 0.94% | -0.24% | -1.82% | |
| 29 | SPYM | Ste Str Spdr Pt S&p 500 ETF | ETF-Large Cap & Growth | 0.93% | +0.17% | +15.41% | |
| 30 | COF | Capital One Financial CORP | Stock-Financials | 0.90% | +0.04% | +0.44% | |
| 31 | SOFI | Sofi Technologies Inc | Stock-Financials | 0.89% | +0.24% | -0.34% | |
| 32 | ABBV | Abbvie Inc | Stock-Healthcare | 0.89% | +0.03% | -0.01% | |
| 33 | NOC | Northrop Grumman CORP | Stock-Industrials | 0.87% | -0.36% | +1.68% | |
| 34 | MET | Metlife Inc | Stock-Financials | 0.84% | +0.07% | +1.65% | |
| 35 | VIK | Viking Holdings Ltd | Stock-Consumer Disc | 0.75% | +0.17% | +0.18% | |
| 36 | ABT | Abbott Laboratories | Stock-Healthcare | 0.71% | -0.12% | +0.89% | |
| 37 | MA | Mastercard Inc - A | Stock-Financials | 0.71% | -0.03% | +1.41% | |
| 38 | VLO | Valero Energy CORP | Stock-Energy | 0.71% | -0.12% | +0.41% | |
| 39 | PLD | Prologis Inc | Stock-Real Estate | 0.70% | -0.07% | +1.58% | |
| 40 | ZTS | Zoetis Inc | Stock-Healthcare | 0.70% | -0.33% | -7.39% | |
| 41 | ETN | Eaton Corporation plc | Stock-Industrials | 0.66% | +0.05% | +1.72% | |
| 42 | NEE | Nextera Energy Inc | Stock-Utilities | 0.64% | -0.06% | +6.21% | |
| 43 | NSC | Norfolk Southern CORP | Stock-Industrials | 0.64% | -0.01% | +0.10% | |
| 44 | XLE | Ss Energy Select Sector | ETF-Other | 0.62% | -0.20% | +102.99% | |
| 45 | BMI | Badger Meter Inc | Stock-Tech | 0.60% | -0.02% | +0.97% | |
| 46 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.58% | -0.04% | -0.73% | |
| 47 | FITB | Fifth Third Bancorp | Stock-Financials | 0.56% | +0.08% | +199.36% | |
| 48 | EOG | Eog Resources Inc | Stock-Energy | 0.56% | +0.05% | -3.02% | |
| 49 | DHR | Danaher CORP | Stock-Healthcare | 0.55% | -0.04% | +0.26% | |
| 50 | WMT | Walmart Inc | Stock-Consumer Staples | 0.55% | -0.12% | +1.07% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | LLY | Eli Lilly & Co | +0.5% | -0.70% | Trim |
| 2 | FITB | Fifth Third Bancorp | +0.4% | +199.36% | Add |
| 3 | SPY | Ss Spdr S&p 500 ETF Trust-us | +0.4% | +27.54% | Add |
| 4 | GOOGL | Alphabet Inc-cl A | +0.3% | -11.19% | Trim |
| 5 | CMI | Cummins Inc | +0.3% | -0.02% | Trim |
| 6 | AEM | Agnico Eagle Mines LTD | +0.2% | +469.69% | Add |
| 7 | ALL | Allstate CORP | +0.2% | +2047.23% | Add |
| 8 | MFSI | Mfs Active International | +0.2% | +2.07% | Add |
| 9 | MS | Morgan Stanley | +0.2% | +0.18% | Add |
| 10 | KLAC | Kla CORP | +0.1% | -1.43% | Trim |
| 11 | SPYM | Ste Str Spdr Pt S&p 500 ETF | +0.1% | +15.41% | Add |
| 12 | BSCR | Invesco Bulletshares 2027 Cb | +0.1% | +9.79% | Add |
| 13 | JNJ | Johnson & Johnson | +0.1% | +0.82% | Add |
| 14 | CMA | Comerica Inc | +0.1% | +53.63% | Add |
| 15 | AAPL | Apple Inc | +0.1% | -0.55% | Trim |
| 16 | FLIN | Franklin Ftse India ETF | +0.1% | +3.29% | Add |
| 17 | COF | Capital One Financial CORP | +0.1% | +0.44% | Add |
| 18 | VIK | Viking Holdings Ltd | +0.1% | +0.18% | Add |
| 19 | AVGO | Broadcom Inc | +0.1% | -0.10% | Trim |
| 20 | AMZN | Amazon.com Inc | +0.1% | +1.39% | Add |
| 21 | BSJQ | Invesco Bulletshares 2026 Hy | +0.1% | +9.09% | Add |
| 22 | PLD | Prologis Inc | +0.1% | +1.58% | Add |
| 23 | UPS | United Parcel Service-cl B | +0.1% | -1.17% | Trim |
| 24 | DHR | Danaher CORP | +0.1% | +0.26% | Add |
| 25 | NEE | Nextera Energy Inc | +0.1% | +6.21% | Add |
| 26 | VEA | Vanguard Ftse Developed ETF | +0.1% | +1.92% | Add |
| 27 | GLW | Corning Inc | +0.1% | -0.13% | Trim |
| 28 | WMT | Walmart Inc | 0% | +1.07% | Add |
| 29 | VGK | Vanguard Ftse Europe ETF | 0% | -1.02% | Trim |
| 30 | ROP | Roper Technologies Inc | -0.1% | +1.80% | Add |
| 31 | PG | Procter & Gamble Co/the | -0.1% | -0.73% | Trim |
| 32 | EOG | Eog Resources Inc | -0.1% | -3.02% | Trim |
| 33 | APTV | Aptiv PLC | -0.1% | -1.22% | Trim |
| 34 | NOC | Northrop Grumman CORP | -0.1% | +1.68% | Add |
| 35 | ABT | Abbott Laboratories | -0.1% | +0.89% | Add |
| 36 | HD | Home Depot Inc | -0.1% | +4.47% | Add |
| 37 | INGR | Ingredion Inc | -0.1% | -17.70% | Trim |
| 38 | ETN | Eaton Corporation plc | -0.1% | +1.72% | Add |
| 39 | BX | Blackstone Inc | -0.1% | +3.01% | Add |
| 40 | IJH | Ishares Core S&p Midcap ETF | -0.1% | -0.40% | Trim |
| 41 | PHM | Pultegroup Inc | -0.2% | +0.89% | Add |
| 42 | ORCL | Oracle CORP | -0.2% | -40.00% | Trim |
| 43 | BLK | Blackrock Inc | -0.2% | +0.87% | Add |
| 44 | ZTS | Zoetis Inc | -0.2% | -7.39% | Trim |
| 45 | VNQ | Vanguard Real Estate ETF | -0.2% | -8.53% | Trim |
| 46 | MSFT | Microsoft CORP | -0.5% | -2.31% | Trim |
| 47 | NVDA | Nvidia CORP | -0.9% | -15.20% | Trim |
| 48 | DSI | Ishares Esg Msci Kld 400 ETF | — | NEW | New buy |
| 49 | DMXF | Ishares Esg Advanc Msci Eafe | — | NEW | New buy |
| 50 | BSGT | Invesco Bulletshares 2029 Treasury Bond ETF | — | EXIT | Sold out |
According to official SEC Form 13F filings, Old Second National Bank Of Aurora reported a total U.S. public equity portfolio value of $530.5M across 288 disclosed positions in Q4 2025.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including MFSI, IJH, NVDA) accounted for 24.4% of total reported equity market value during Q4 2025.
Top New Position Initiated
DSI
市值: $838.8K
Top Position Liquidated / Trimmed
BSGT
前期市值: $206.1K
During Q4 2025, Old Second National Bank Of Aurora's top holdings by market value included MFSI (8.4%)、IJH (6.1%)、NVDA (4.1%). The largest single position, MFSI, represented 8.4% of total portfolio value.
In Q4 2025, Old Second National Bank Of Aurora made 50 total portfolio adjustments, initiating 2 new buys, adding to 28 positions, trimming 19 holdings, and fully liquidating 1 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.