Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Taiwan Semiconductor ManufacSPONSORED ADS | SPONSORED ADS | $30.3M | 4.4% |
| Apple Inc.COM | COM | $25.8M | 3.7% |
| Vanguard Scottsdale FdsMTG-BKD SECS ETF | MTG-BKD SECS ETF | $23.4M | 3.4% |
| Micron Technology Inc.COM | COM | $22.7M | 3.3% |
| Alphabet Inc.CAP STK CL A | CAP STK CL A | $22.7M | 3.3% |
| iShares TR7-10 YR TRSY BD | 7-10 YR TRSY BD | $22.1M | 3.2% |
| Janus Detroit Str TRHENDERSON MTG | HENDERSON MTG | $20.1M | 2.9% |
| iShares TRPFD AND INCM SEC | PFD AND INCM SEC | $19.9M | 2.9% |
| Seagate Technology Hldngs PLORD SHS | ORD SHS | $16.3M | 2.4% |
| Microsoft Corp.COM | COM | $16.1M | 2.3% |
| Advanced Micro Devices Inc.COM | COM | $15.9M | 2.3% |
| SPDR Series TrustST SHO TREAS ETF | ST SHO TREAS ETF | $15.3M | 2.2% |
| Janus Detroit Str TRHENDRSON AAA CL | HENDRSON AAA CL | $14.6M | 2.1% |
| Berkshire Hathaway Inc. DelCL B NEW | CL B NEW | $14.5M | 2.1% |
| Alphabet Inc.CAP STK CL C | CAP STK CL C | $11.6M | 1.7% |
| ASML Hldg NVN Y REGISTRY SHS | N Y REGISTRY SHS | $11.2M | 1.6% |
| JPMORGAN Chase & COCOM | COM | $10.5M | 1.5% |
| Sandisk Corp.COM | COM | $9.74M | 1.4% |
| Meta Platforms Inc.CL A | CL A | $9.36M | 1.4% |
| Amazon Com Inc.COM | COM | $9.22M | 1.3% |
| Broadcom Inc.COM | COM | $9.18M | 1.3% |
| Dimensional ETF TrustUS EQUI MARK ETF | US EQUI MARK ETF | $8.8M | 1.3% |
| Amgen Inc.COM | COM | $8.63M | 1.2% |
| iShares Inc.MSCI GBL GOLD MN | MSCI GBL GOLD MN | $8.54M | 1.2% |
| iShares TRISHS 1-5YR INVS | ISHS 1-5YR INVS | $8.37M | 1.2% |
| Wheaton Precious Metals Corp.COM | COM | $8.27M | 1.2% |
| SPDR Series TrustSST SPDR BLOOMBE | SST SPDR BLOOMBE | $8.23M | 1.2% |
| SPDR Series TrustST STR TIPS ETF | ST STR TIPS ETF | $8.13M | 1.2% |
| Wesco Intl Inc.COM | COM | $7.76M | 1.1% |
| Eli Lilly & COCOM | COM | $7.62M | 1.1% |
| Spotify Technology S ASHS | SHS | $7.62M | 1.1% |
| Natera Inc.COM | COM | $7.19M | 1.0% |
| Quanta Svcs Inc.COM | COM | $6.89M | 1.0% |
| Standardaero Inc.COM | COM | $6.75M | 1.0% |
| Ferguson Enterprises Inc.COMMON STOCK NEW | COMMON STOCK NEW | $6.53M | 0.9% |
| Rtx CorporationCOM | COM | $5.99M | 0.9% |
| Nvidia CorporationCOM | COM | $5.4M | 0.8% |
| TE Connectivity PLCORD SHS | ORD SHS | $5.28M | 0.8% |
| State Str SPDR S&P 500 ETF TTR UNIT | TR UNIT | $5.19M | 0.8% |
| iShares TRCORE S&P500 ETF | CORE S&P500 ETF | $5.19M | 0.8% |
| Netflix Inc..COM | COM | $5.1M | 0.7% |
| Walmart Inc.COM | COM | $5.05M | 0.7% |
| Goldman Sachs Group Inc.COM | COM | $4.99M | 0.7% |
| Home Depot Inc.COM | COM | $4.9M | 0.7% |
| Icon Pub Ltd COSHS | SHS | $4.69M | 0.7% |
| Progressive Corp.COM | COM | $4.38M | 0.6% |
| EQT Corp.COM | COM | $4.37M | 0.6% |
| Bank OF Amer Corp.COM | COM | $4.28M | 0.6% |
| Lowes Cos Inc.COM | COM | $4.22M | 0.6% |
| Stryker CorporationCOM | COM | $4.21M | 0.6% |
Taiwan Semiconductor ManufacSPONSORED ADS$30.3M
- Class
- SPONSORED ADS
- Share
- 4.4%
Apple Inc.COM$25.8M
- Class
- COM
- Share
- 3.7%
Vanguard Scottsdale FdsMTG-BKD SECS ETF$23.4M
- Class
- MTG-BKD SECS ETF
- Share
- 3.4%
Micron Technology Inc.COM$22.7M
- Class
- COM
- Share
- 3.3%
Alphabet Inc.CAP STK CL A$22.7M
- Class
- CAP STK CL A
- Share
- 3.3%
iShares TR7-10 YR TRSY BD$22.1M
- Class
- 7-10 YR TRSY BD
- Share
- 3.2%
Janus Detroit Str TRHENDERSON MTG$20.1M
- Class
- HENDERSON MTG
- Share
- 2.9%
iShares TRPFD AND INCM SEC$19.9M
- Class
- PFD AND INCM SEC
- Share
- 2.9%
Seagate Technology Hldngs PLORD SHS$16.3M
- Class
- ORD SHS
- Share
- 2.4%
Microsoft Corp.COM$16.1M
- Class
- COM
- Share
- 2.3%
Advanced Micro Devices Inc.COM$15.9M
- Class
- COM
- Share
- 2.3%
SPDR Series TrustST SHO TREAS ETF$15.3M
- Class
- ST SHO TREAS ETF
- Share
- 2.2%
Janus Detroit Str TRHENDRSON AAA CL$14.6M
- Class
- HENDRSON AAA CL
- Share
- 2.1%
Berkshire Hathaway Inc. DelCL B NEW$14.5M
- Class
- CL B NEW
- Share
- 2.1%
Alphabet Inc.CAP STK CL C$11.6M
- Class
- CAP STK CL C
- Share
- 1.7%
ASML Hldg NVN Y REGISTRY SHS$11.2M
- Class
- N Y REGISTRY SHS
- Share
- 1.6%
JPMORGAN Chase & COCOM$10.5M
- Class
- COM
- Share
- 1.5%
Sandisk Corp.COM$9.74M
- Class
- COM
- Share
- 1.4%
Meta Platforms Inc.CL A$9.36M
- Class
- CL A
- Share
- 1.4%
Amazon Com Inc.COM$9.22M
- Class
- COM
- Share
- 1.3%
Broadcom Inc.COM$9.18M
- Class
- COM
- Share
- 1.3%
Dimensional ETF TrustUS EQUI MARK ETF$8.8M
- Class
- US EQUI MARK ETF
- Share
- 1.3%
Amgen Inc.COM$8.63M
- Class
- COM
- Share
- 1.2%
iShares Inc.MSCI GBL GOLD MN$8.54M
- Class
- MSCI GBL GOLD MN
- Share
- 1.2%
iShares TRISHS 1-5YR INVS$8.37M
- Class
- ISHS 1-5YR INVS
- Share
- 1.2%
Wheaton Precious Metals Corp.COM$8.27M
- Class
- COM
- Share
- 1.2%
SPDR Series TrustSST SPDR BLOOMBE$8.23M
- Class
- SST SPDR BLOOMBE
- Share
- 1.2%
SPDR Series TrustST STR TIPS ETF$8.13M
- Class
- ST STR TIPS ETF
- Share
- 1.2%
Wesco Intl Inc.COM$7.76M
- Class
- COM
- Share
- 1.1%
Eli Lilly & COCOM$7.62M
- Class
- COM
- Share
- 1.1%
Spotify Technology S ASHS$7.62M
- Class
- SHS
- Share
- 1.1%
Natera Inc.COM$7.19M
- Class
- COM
- Share
- 1.0%
Quanta Svcs Inc.COM$6.89M
- Class
- COM
- Share
- 1.0%
Standardaero Inc.COM$6.75M
- Class
- COM
- Share
- 1.0%
Ferguson Enterprises Inc.COMMON STOCK NEW$6.53M
- Class
- COMMON STOCK NEW
- Share
- 0.9%
Rtx CorporationCOM$5.99M
- Class
- COM
- Share
- 0.9%
Nvidia CorporationCOM$5.4M
- Class
- COM
- Share
- 0.8%
TE Connectivity PLCORD SHS$5.28M
- Class
- ORD SHS
- Share
- 0.8%
State Str SPDR S&P 500 ETF TTR UNIT$5.19M
- Class
- TR UNIT
- Share
- 0.8%
iShares TRCORE S&P500 ETF$5.19M
- Class
- CORE S&P500 ETF
- Share
- 0.8%
Netflix Inc..COM$5.1M
- Class
- COM
- Share
- 0.7%
Walmart Inc.COM$5.05M
- Class
- COM
- Share
- 0.7%
Goldman Sachs Group Inc.COM$4.99M
- Class
- COM
- Share
- 0.7%
Home Depot Inc.COM$4.9M
- Class
- COM
- Share
- 0.7%
Icon Pub Ltd COSHS$4.69M
- Class
- SHS
- Share
- 0.7%
Progressive Corp.COM$4.38M
- Class
- COM
- Share
- 0.6%
EQT Corp.COM$4.37M
- Class
- COM
- Share
- 0.6%
Bank OF Amer Corp.COM$4.28M
- Class
- COM
- Share
- 0.6%
Lowes Cos Inc.COM$4.22M
- Class
- COM
- Share
- 0.6%
Stryker CorporationCOM$4.21M
- Class
- COM
- Share
- 0.6%
The share class is shown on a wider screen.
The 50 largest of 188 positions by value, with holdings of the same security combined. The 188 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 1304229
- File number
- 028-12671
- Options
- 0 call, 0 put
- In the 25 largest
- 55.7%
- Prior quarter
- $591M at 31 March 2026
- Positions opened
- 15
- Positions closed
- 15
Common questions
What are SeaBridge Investment Advisors’ 13F holdings worth?
$692 million across 188 positions for the quarter ended 30 June 2026.
What is SeaBridge Investment Advisors’ largest 13F holding?
TAIWAN SEMICONDUCTOR MANUFAC (SPONSORED ADS) was the largest position at $30.3 million, or 4.4% of reported 13F value, as of 30 June 2026.
How concentrated is SeaBridge Investment Advisors’ 13F portfolio?
The ten largest positions accounted for 31.7% of reported value and the twenty-five largest for 55.7%, across 188 positions as of 30 June 2026.
Does Form 13F show everything SeaBridge Investment Advisors manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does SeaBridge Investment Advisors file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.