SeaBridge Investment Advisors LLC reported 173 positions worth $520.04M for the quarter ended Sep 30, 2026, up 7.5% on the prior quarter. It opened 44 new positions, added to 83, trimmed 28 and exited 6. Its largest holding is Apple Inc. at 5.9% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| SAP Sap Se | +29.9K | – | $6.24M | 1.2% |
| ELV Elevance Health, Inc. | +15.3K | – | $5.94M | 1.14% |
| MSFT Microsoft Corp | +8,581 | +19.9% | $4.40M | 5.1% |
| LLY ELI LILLY & Co | +3,258 | +51.3% | $3.77M | 2.14% |
| VEEV Veeva Systems Inc | +12.2K | – | $3.47M | 0.667% |
| TYL Tyler Technologies Inc | +9,707 | +315.9% | $3.09M | 0.783% |
| BRK-B Berkshire Hathaway Inc | +2,899 | +10.0% | $1.44M | 3.04% |
| XOM ExxonMobil Holdings Corp | +8,085 | +120.2% | $1.32M | 0.464% |
| AVGO Broadcom Inc. | +3,516 | +14.5% | $1.23M | 1.88% |
| AMZN Amazon Com Inc | +4,118 | +10.6% | $1.03M | 2.05% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| TEL TE Connectivity plc | -24.5K | -93.7% | $5.18M | 0.067% |
| SYK Stryker Corp | -13.4K | -100.0% | $4.21M | Exited |
| NFLX Netflix Inc | -46.8K | -65.5% | $3.26M | 0.33% |
| BKNG Booking Holdings Inc. | -17.9K | -89.0% | $2.91M | 0.069% |
| SNDK Sandisk Corp | -902 | -21.1% | $1.57M | 1.13% |
| BABA Alibaba Group Holding Ltd | -13.6K | -35.8% | $1.47M | 0.505% |
| BE Bloom Energy Corp | -3,092 | -48.8% | $856.42K | 0.173% |
| MU Micron Technology Inc | -777 | -3.9% | $827.59K | 3.87% |
| UEC Uranium Energy Corp | -71.0K | -100.0% | $756.58K | Exited |
| WMT Walmart Inc. | -6,153 | -13.8% | $639.42K | 0.768% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| SAP Sap Se | +29.9K | $6.24M | 1.2% |
| ELV Elevance Health, Inc. | +15.3K | $5.94M | 1.14% |
| VEEV Veeva Systems Inc | +12.2K | $3.47M | 0.667% |
| VZ Verizon Communications Inc | +13.4K | $615.22K | 0.118% |
| ACN Accenture plc | +3,337 | $611.91K | 0.118% |
| BDX Becton Dickinson & Co | +3,187 | $570.47K | 0.11% |
| GLD Spdr Gold Trust | +1,446 | $550.70K | 0.106% |
| PFE Pfizer Inc | +19.1K | $545.08K | 0.105% |
| DUK Duke Energy CORP | +4,617 | $526.39K | 0.101% |
| ENB Enbridge Inc | +11.0K | $512.23K | 0.098% |
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| SYK Stryker Corp | -13.4K | $4.21M | 0.871% |
| UEC Uranium Energy Corp | -71.0K | $756.58K | 0.156% |
| POST Post Holdings, Inc. | -5,592 | $493.55K | 0.102% |
| TPR Tapestry, Inc. | -1,670 | $244.45K | 0.051% |
| HDB Hdfc Bank Ltd | -8,919 | $230.38K | 0.048% |
| NRG Nrg Energy, Inc. | -1,532 | $223.76K | 0.046% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | AAPL Apple Inc. | Technology | 92.1K | $30.66M | 5.9% | +3,008 | +3.4% | Added | 0% |
| 2 | TSM Taiwan Semiconductor Manufacturing Co Ltd | Technology | 64.2K | $29.27M | 5.63% | +627 | +1.0% | Added | 0% |
| 3 | MSFT Microsoft Corp | Technology | 51.7K | $26.52M | 5.1% | +8,581 | +19.9% | Added | 0% |
| 4 | GOOGL Alphabet Inc. | Technology | 64.1K | $22.05M | 4.24% | +541 | +0.9% | Added | 0% |
| 5 | MU Micron Technology Inc | Technology | 18.9K | $20.14M | 3.87% | -777 | -3.9% | Reduced | 0% |
| 6 | AMD Advanced Micro Devices Inc | Technology | 26.7K | $16.32M | 3.14% | -770 | -2.8% | Reduced | 0% |
| 7 | BRK-B Berkshire Hathaway Inc | Financial Services | 31.8K | $15.83M | 3.04% | +2,899 | +10.0% | Added | 0% |
| 8 | STX Seagate Technology Holdings plc | Technology | 16.8K | $15.51M | 2.98% | -70 | -0.4% | Reduced | 0.01% |
| 9 | META Meta Platforms, Inc. | Technology | 17.0K | $12.33M | 2.37% | +400 | +2.4% | Added | 0% |
| 10 | GOOG Alphabet Inc. | Technology | 35.5K | $12.11M | 2.33% | +2,653 | +8.1% | Added | 0% |
| 11 | JPM Jpmorgan Chase & Co | Financial Services | 35.2K | $11.63M | 2.24% | +2,984 | +9.3% | Added | 0% |
| 12 | LLY ELI LILLY & Co | Healthcare | 9,610 | $11.12M | 2.14% | +3,258 | +51.3% | Added | 0% |
| 13 | NTRA Natera, Inc. | Healthcare | 26.5K | $10.93M | 2.1% | -20 | -0.1% | Reduced | 0.02% |
| 14 | AMZN Amazon Com Inc | Consumer Discretionary | 42.8K | $10.66M | 2.05% | +4,118 | +10.6% | Added | 0% |
| 15 | AMGN Amgen Inc | Healthcare | 25.1K | $10.58M | 2.03% | +1,278 | +5.4% | Added | 0% |
Tip. Select a row to see that position’s full history at SeaBridge Investment Advisors.
As of its Q3 2026 13F filing, SeaBridge Investment Advisors LLC’s five largest positions were Apple Inc. (AAPL) at 5.9%, Taiwan Semiconductor Manufacturing Co Ltd (TSM) at 5.6%, Microsoft Corp (MSFT) at 5.1%, Alphabet Inc. (GOOGL) at 4.2%, Micron Technology Inc (MU) at 3.9% of the reported portfolio.
SeaBridge Investment Advisors LLC reported a 13F portfolio worth $520.04M across 173 positions for Q3 2026. That is up 7.5% from the previous quarter.
Its largest purchases by value were Sap Se ($6.24M), Elevance Health, Inc. ($5.94M), Microsoft Corp ($4.40M). It opened 44 new positions.
Its largest sales by value were TE Connectivity plc ($5.18M), Stryker Corp ($4.21M), Netflix Inc ($3.26M). It exited 6 positions entirely.
From the Form 13F-HR reports SeaBridge Investment Advisors LLC 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.
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.