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Super Investors SeaBridge Investment Advisors LLC
SI

SeaBridge Investment Advisors LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Portfolio value
$692M
Positions
188
Quarter ended
June 30, 2026
Filed
July 17, 2026

Reported portfolio value by quarter (53 quarters reported)

$692M $218M
Q2 13 Q1 16 Q4 18 Q3 21 Q2 24 Q2 26

$379M in Q2 2013 → $692M now. Hover for any quarter.

Holdings

As reported for the quarter ended June 30, 2026. Activity is the change in share count since the prior quarter's filing.

Holding % of portfolio Activity Shares Value
TS Taiwan Semiconductor Manufac 4.4% Trimmed 0.0% 63,532 $30.3M
Apple Inc 3.7% Added 2.7% 89,073 $25.8M
VS Vanguard Scottsdale Fds 3.4% Added 11% 499,622 $23.4M
Micron Technology Inc 3.3% Added 0.1% 19,686 $22.7M
Alphabet Inc 3.3% Trimmed 1.2% 63,546 $22.7M
IT Ishares Tr 3.2% Added 12% 233,761 $22.1M
JD Janus Detroit Str Tr 2.9% Added 6.8% 446,615 $20.1M
IT Ishares Tr 2.9% Added 9.8% 654,287 $19.9M
ST Seagate Technology Hldngs Pl 2.4% Trimmed 22% 16,891 $16.3M
Microsoft Corp 2.3% Added 2.5% 43,132 $16.1M
Advanced Micro Devices Inc 2.3% Added 0.7% 27,450 $15.9M
SS SPDR Series Trust 2.2% Added 6.5% 527,316 $15.3M
JD Janus Detroit Str Tr 2.1% Added 18% 288,801 $14.6M
BH Berkshire Hathaway Inc Del 2.1% Added 2.9% 28,886 $14.5M
Alphabet Inc 1.7% Trimmed 3.1% 32,890 $11.6M
AH Asml Hldg Nv 1.6% Added 2.5% 5,639 $11.2M
Jpmorgan Chase & Co 1.5% Added 0.3% 32,167 $10.5M
Sandisk Corp 1.4% Trimmed 2.2% 4,283 $9.74M
Meta Platforms Inc 1.4% Trimmed 20% 16,609 $9.36M
Amazon Com Inc 1.3% Added 3.3% 38,681 $9.22M
Broadcom Inc 1.3% Added 2.0% 24,303 $9.18M
DE Dimensional ETF Trust 1.3% Trimmed 2.6% 107,387 $8.8M
Amgen Inc 1.2% Added 0.6% 23,819 $8.63M
I Ishares Inc 1.2% Added 2.1% 132,121 $8.54M
IT Ishares Tr 1.2% Added 13% 159,641 $8.37M
Wheaton Precious Metals Corp 1.2% Added 2.2% 73,629 $8.27M
SS SPDR Series Trust 1.2% Added 8.1% 393,524 $8.23M
SS SPDR Series Trust 1.2% Added 11% 316,529 $8.13M
WI Wesco Intl Inc 1.1% Added 1.9% 22,461 $7.76M
EL Eli Lilly & Co 1.1% Added 2698% 6,352 $7.62M
Spotify Technology S A 1.1% Trimmed 0.5% 16,587 $7.62M
Natera Inc 1.0% Added 0.3% 26,475 $7.19M
QS Quanta Svcs Inc 1.0% Trimmed 22% 9,568 $6.89M
Standardaero Inc 1.0% Added 49% 225,832 $6.75M
Ferguson Enterprises Inc 0.9% Added 1.5% 27,505 $6.53M
Rtx Corporation 0.9% Added 1.4% 31,570 $5.99M
Nvidia Corporation 0.8% Added 1.7% 26,997 $5.4M
Te Connectivity PLC 0.8% Added 0.3% 26,180 $5.28M
SS State Str SPDR S&P 500 ETF T 0.8% Added 2.2% 6,957 $5.19M
IT Ishares Tr 0.8% Trimmed 2.1% 6,931 $5.19M
Netflix Inc. 0.7% Added 1.6% 71,495 $5.1M
Walmart Inc 0.7% Added 0.3% 44,586 $5.05M
Goldman Sachs Group Inc 0.7% Added 2.2% 4,929 $4.99M
Home Depot Inc 0.7% Added 16% 13,903 $4.9M
IP Icon Pub Ltd Co 0.7% Added 4.2% 26,986 $4.69M
Progressive Corp 0.6% Trimmed 1.5% 20,046 $4.38M
Eqt Corp 0.6% Added 2.9% 82,138 $4.37M
BO Bank Of Amer Corp 0.6% Trimmed 3.0% 75,119 $4.28M
LC Lowes Cos Inc 0.6% Added 0.6% 19,155 $4.22M
Stryker Corporation 0.6% Added 1.3% 13,385 $4.21M
Nvr Inc 0.6% Added 4.0% 600 $4.09M
Morgan Stanley 0.6% Added 29% 19,296 $4.03M
AG Alibaba Group Hldg Ltd 0.5% Trimmed 0.9% 38,081 $3.66M
Antero Resources Corp 0.5% Added 2.6% 102,484 $3.6M
Booking Holdings Inc 0.5% Added 2454% 20,073 $3.58M
Mettler Toledo International 0.5% Trimmed 1.1% 2,773 $3.54M
CR Cnx Res Corp 0.5% Added 2.9% 104,081 $3.53M
NE Nvent Elec PLC 0.5% Unchanged 20,744 $3.52M
Mastercard Incorporated 0.5% Added 1.7% 6,826 $3.51M
Cameco Corp 0.5% Trimmed 0.3% 33,194 $3.38M

Showing top 60 of 188 positions.

Timeline of changes

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

Q2 2026

quarter ended June 30, 2026 · filed July 17, 2026

Company Action Shares changed Value of change % of portfolio
EL Eli Lilly & Co Added +6,125 +$7.35M 1.1%
IT Ishares Tr Trimmed −61,706 −$6.45M —
ST Seagate Technology Hldngs Pl Trimmed −4,800 −$4.63M 2.4%
Booking Holdings Inc Added +19,287 +$3.44M 0.5%
VE Vaneck ETF Trust Exited −25,317 −$3.04M —
IT Ishares Tr Added +25,720 +$2.43M 3.2%
Meta Platforms Inc Trimmed −4,079 −$2.3M 1.4%
VS Vanguard Scottsdale Fds Added +47,865 +$2.24M 3.4%
Standardaero Inc Added +73,994 +$2.21M 1.0%
JD Janus Detroit Str Tr Added +43,619 +$2.2M 2.1%

Showing the 10 largest of 163 changes.

Q1 2026

quarter ended March 31, 2026 · filed April 29, 2026

Company Action Shares changed Value of change % of portfolio
IE Invesco Exchange Traded Fd T Trimmed −65,233 −$12.5M 0.2%
IT Ishares Tr Exited −59,127 −$7.29M —
IT Ishares Tr Exited −93,564 −$6.42M —
IT Ishares Tr Added +60,473 +$5.48M 1.0%
Danaher Corporation Exited −19,558 −$4.48M —
Progressive Corp New +20,361 +$4.04M 0.7%
Cameco Corp New +33,286 +$3.62M 0.6%
Goldman Sachs Group Inc Added +4,098 +$3.47M 0.7%
AB Anheuser Busch Inbev Sa/nv Exited −52,109 −$3.34M —
TS Tcw Strategic Income Fd Inc Exited −667,324 −$3.3M —

Showing the 10 largest of 163 changes.

Q4 2025

quarter ended December 31, 2025 · filed January 26, 2026

Company Action Shares changed Value of change % of portfolio
Oracle Corp Trimmed −37,779 −$7.36M 0.1%
Danaher Corporation New +19,558 +$4.48M 0.7%
Netflix Inc Added +45,755 +$4.29M 0.8%
SS SPDR Series Trust Added +137,359 +$4.02M 2.5%
IT Ishares Tr Trimmed −40,162 −$3.86M 3.3%
Micron Technology Inc Added +13,178 +$3.76M 0.8%
WA Western Asset Investment Gra Exited −275,204 −$3.53M —
IT Ishares Tr Trimmed −84,116 −$2.6M 2.6%
T-mobile Us Inc Trimmed −12,572 −$2.55M 0.5%
I Ishares Inc Added +33,223 +$2.45M 1.4%

Showing the 10 largest of 160 changes.

Q3 2025

quarter ended September 30, 2025 · filed October 22, 2025

Company Action Shares changed Value of change % of portfolio
IT Ishares Tr Exited −1,010,198 −$23.2M —
IT Ishares Tr Added +226,320 +$21.8M 3.9%
IT Ishares Tr New +148,158 +$7.86M 1.3%
SS SPDR Series Trust New +363,335 +$7.76M 1.3%
VS Vanguard Scottsdale Fds Added +159,625 +$7.5M 3.6%
IE Invesco Exch Traded Fd Tr Ii Exited −259,445 −$6.34M —
Salesforce Inc Exited −21,008 −$5.73M —
I Ishares Inc New +86,025 +$5.57M 0.9%
IE Invesco Exchange Traded Fd T Added +28,655 +$5.44M 2.2%
IT Ishares Tr Added +161,250 +$5.1M 3.1%

Showing the 10 largest of 171 changes.

Q2 2025

quarter ended June 30, 2025 · filed July 17, 2025

Company Action Shares changed Value of change % of portfolio
IE Invesco Exchange Traded Fd T Added +26,034 +$4.73M 1.4%
Booking Holdings Inc Added +670 +$3.88M 0.8%
IT Ishares Tr Added +150,482 +$3.46M 4.3%
IT Ishares Tr New +30,200 +$3.33M 0.6%
IT Ishares Tr New +48,500 +$3.07M 0.6%
JD Janus Detroit Str Tr Added +62,435 +$2.81M 2.7%
SS SPDR Series Trust Added +26,716 +$2.66M 0.9%
Diamondback Energy Inc Exited −16,460 −$2.63M —
VS Vanguard Scottsdale Fds Added +55,422 +$2.57M 2.7%
IT Ishares Tr Added +77,154 +$2.37M 2.5%

Showing the 10 largest of 173 changes.

Q1 2025

quarter ended March 31, 2025 · filed May 02, 2025

Company Action Shares changed Value of change % of portfolio
SS Schwab Strategic Tr Exited −1,120,329 −$27.2M —
SS SPDR Ser Tr New +453,712 +$13.3M 2.9%
JD Janus Detroit Str Tr New +159,160 +$8.07M 1.7%
JD Janus Detroit Str Tr Added +145,100 +$6.56M 2.5%
IT Ishares Tr Added +256,392 +$5.89M 4.3%
IT Ishares Tr Added +132,381 +$4.07M 2.4%
Nvent Electric PLC Trimmed −67,964 −$3.56M 0.2%
VS Vanguard Scottsdale Fds Added +68,706 +$3.18M 2.6%
Spotify Technology S A Trimmed −5,368 −$2.95M 1.9%
AB Anheuser Busch Inbev Sa/nv New +46,922 +$2.89M 0.6%

Showing the 10 largest of 169 changes.

Q4 2024

quarter ended December 31, 2024 · filed January 24, 2025

Company Action Shares changed Value of change % of portfolio
SS Schwab Strategic Tr Added +754,080 +$18.3M 5.7%
DE Dimensional ETF Trust New +114,487 +$7.3M 1.5%
IT Ishares Tr New +8,108 +$4.77M 1.0%
VS Vanguard Scottsdale Fds Exited −77,175 −$4.75M —
VI Vanguard Index Fds Added +8,305 +$4.47M 1.0%
VI Vanguard Index Fds New +13,014 +$3.77M 0.8%
IQ Invesco Qqq Tr New +6,187 +$3.16M 0.7%
IE Invesco Exchange Traded Fd T New +16,574 +$2.9M 0.6%
Natera Inc New +18,282 +$2.89M 0.6%
SS Select Sector SPDR Tr New +11,711 +$2.72M 0.6%

Showing the 10 largest of 195 changes.

Q3 2024

quarter ended September 30, 2024 · filed November 04, 2024

Company Action Shares changed Value of change % of portfolio
SS Schwab Strategic Tr New +366,249 +$18.5M 4.5%
VS Vanguard Scottsdale Fds Trimmed −104,209 −$6.15M 0.5%
Oracle Corp Added +29,635 +$5.05M 1.8%
Broadcom Inc Added +24,502 +$4.23M 1.2%
Ferguson Enterprises Inc New +16,450 +$3.27M 0.8%
AT American Tower Corp New New +13,666 +$3.18M 0.8%
FP Ferguson PLC New Exited −14,651 −$2.84M —
DG Dollar Gen Corp New Exited −20,315 −$2.69M —
Pfizer Inc Trimmed −89,636 −$2.59M 0.1%
IT Ishares Tr Exited −49,912 −$2.56M —

Showing the 10 largest of 126 changes.

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