Institutional Manager · CIK 0001304229
SeaBridge Investment Advisors LLC
SUMMIT, NJ · File #028-12671
Latest AUM
$605.7M
Positions
196
Top-10 Concentration
41.4%
Filings
9
Portfolio Value Over Time
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
2025-09
2025-12
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | ORACLE CORP | ORCL-PD | -37,779 | -$7.4M | -$3.5M |
| NEW | DANAHER CORPORATION | 235851102 | +19,558 | +$4.5M | $0 |
| ADD | NETFLIX INC | NFLX | +45,755 | +$4.3M | -$6.4M |
| ADD | SPDR SERIES TRUST | 78468R101 | +137,359 | +$4.0M | -$14,887 |
| REDUCE | ISHARES TR | 464287440 | -40,162 | -$3.9M | -$74,107 |
| ADD | MICRON TECHNOLOGY INC | MU | +13,178 | +$3.8M | +$336,557 |
| EXITED | WESTERN ASSET INVESTMENT GRA | 95766T100 | -275,204 | -$3.5M | $0 |
| REDUCE | ISHARES TR | 464288687 | -84,116 | -$2.6M | -$397,311 |
| REDUCE | T-MOBILE US INC | TMUSZ | -12,572 | -$2.6M | -$1.0M |
| ADD | ISHARES INC | 46434G855 | +33,223 | +$2.4M | +$768,203 |
Sector Allocation
Filing History
- 13F HOLDINGS REPORTQ/E Dec 2025196 pos · $605.7M
- 13F HOLDINGS REPORTQ/E Sep 2025203 pos · $616.2M
- 13F HOLDINGS REPORTQ/E Jun 2025196 pos · $537.9M
- 13F HOLDINGS REPORTQ/E Mar 2025197 pos · $463.0M
- 13F HOLDINGS REPORTQ/E Dec 2024202 pos · $478.1M
- 13F HOLDINGS REPORTQ/E Sep 2024150 pos · $408.7M
- 13F HOLDINGS REPORTQ/E Jun 2024149 pos · $385.6M
- 13F HOLDINGS REPORTQ/E Mar 2024144 pos · $379.3M
- 13F HOLDINGS REPORTQ/E Dec 2023133 pos · $303.5M
Top 20 Holdings — Dec 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | APPLE INC | AAPL | 80,900 | $22.0M | 4.93% |
| 2 | TAIWAN SEMICONDUCTOR MFG LTD | 874039100 | 71,426 | $21.7M | 4.86% |
| 3 | VANGUARD SCOTTSDALE FDS | 92206C771 | 441,809 | $20.8M | 4.66% |
| 4 | ISHARES TR | 464287440 | 206,863 | $19.9M | 4.46% |
| 5 | JANUS DETROIT STR TR | 47103U852 | 414,195 | $18.9M | 4.24% |
| 6 | ALPHABET INC | GOOG | 58,703 | $18.4M | 4.12% |
| 7 | MICROSOFT CORP | MSFT | 37,899 | $18.3M | 4.11% |
| 8 | ISHARES TR | 464288687 | 517,870 | $16.0M | 3.59% |
| 9 | SPDR SERIES TRUST | 78468R101 | 509,507 | $14.9M | 3.34% |
| 10 | INVESCO EXCHANGE TRADED FD T | IVZ | 71,198 | $13.6M | 3.06% |
| 11 | BERKSHIRE HATHAWAY INC DEL | BRK-A | 24,744 | $12.4M | 2.79% |
| 12 | META PLATFORMS INC | META | 17,576 | $11.6M | 2.60% |
| 13 | JANUS DETROIT STR TR | 47103U845 | 225,038 | $11.4M | 2.55% |
| 14 | ALPHABET INC | GOOG | 35,744 | $11.2M | 2.51% |
| 15 | BROADCOM INC | AVGO | 27,483 | $9.5M | 2.13% |
| 16 | JPMORGAN CHASE & CO. | VYLD | 28,516 | $9.2M | 2.06% |
| 17 | SPOTIFY TECHNOLOGY S A | SPOT | 15,533 | $9.0M | 2.02% |
| 18 | AMAZON COM INC | AMZN | 38,913 | $9.0M | 2.01% |
| 19 | WHEATON PRECIOUS METALS CORP | WPM | 75,180 | $8.8M | 1.98% |
| 20 | ISHARES INC | 46434G855 | 119,248 | $8.8M | 1.97% |