Bank of Marin — 13F Holdings & Portfolio
CIK 1801145 · latest 13F-HR filed 2026-05-14
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
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AUM
$137.0M
Long-equity book
Holdings
152
Distinct positions
Period
2026-03-31
Filed 2026-05-14
Q/Q Activity
+15 / −10 / ↑43 / ↓52
vs 2025-12-31
Firm Profile & Key People
| Name | Title / Status | Ownership | Type |
|---|
Top Adds (vs prior quarter)
- COSTCO WHOLESALE CORPORATION$382.2K +15.5%
- ARM HOLDINGS PLC$361.5K +70.6%
- CHEVRON CORPORATION$260.5K +41.5%
- PROGRESSIVE CORP$246.7K +92.7%
- FIDELITY COVINGTON TRUST$240.8K +37.0%
Top Trims
- MICROSOFT CORP-$2.2M -26.1%
- TALEN ENERGY CORP-$905.3K -72.3%
- SALESFORCE INC-$673.7K -56.3%
- AMAZON COM INC-$646.3K -17.5%
- APPLE INC-$594.8K -8.0%
New Positions
- PHILLIPS 66$771.5K
- TYLER TECHNOLOGIES INC$461.9K
- AIR PRODUCTS AND CHEMICALS I$456.6K
- BWX TECHNOLOGIES INC$437.2K
- WESCO INTL INC$354.1K
Exited Positions
- SCHWAB CHARLES CORP$631.9K
- FAIR ISAAC CORP$588.3K
- VANGUARD INDEX FDS$512.2K
- EXPEDIA GROUP INC$510.5K
- COSTAR GROUP INC$497.3K
All Holdings
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| # | Issuer | Symbol | CUSIP | Value | Weight | Shares | Type |
|---|---|---|---|---|---|---|---|
| 1 | APPLE INC | AAPL | 037833100 | $6.9M | 5.01% | 27,081 | SH |
| 2 | MICROSOFT CORP | MSFT | 594918104 | $6.2M | 4.52% | 16,737 | SH |
| 3 | SELECT SECTOR SPDR TR | XLK | 81369Y803 | $5.7M | 4.12% | 42,528 | SH |
| 4 | ALPHABET INC | GOOGL | 02079K305 | $3.9M | 2.83% | 13,506 | SH |
| 5 | NVIDIA CORPORATION | NVDA | 67066G104 | $3.7M | 2.73% | 21,470 | SH |
| 6 | VANGUARD INDEX FDS | VO | 922908629 | $3.3M | 2.43% | 11,595 | SH |
| 7 | VANGUARD INDEX FDS | VOO | 922908363 | $3.3M | 2.41% | 5,530 | SH |
| 8 | AMAZON COM INC | AMZN | 023135106 | $3.1M | 2.23% | 14,647 | SH |
| 9 | SELECT SECTOR SPDR TR | XLY | 81369Y407 | $3.0M | 2.22% | 27,972 | SH |
| 10 | SELECT SECTOR SPDR TR | XLV | 81369Y209 | $2.9M | 2.13% | 19,872 | SH |
| 11 | COSTCO WHOLESALE CORPORATION | COST | 22160K105 | $2.8M | 2.07% | 2,850 | SH |
| 12 | VANGUARD WORLD FD | VOX | 92204A884 | $2.5M | 1.83% | 13,934 | SH |
| 13 | BANK OF MARIN BANCORP | BMRC | 063425102 | $2.5M | 1.81% | 97,046 | SH |
| 14 | INVESCO QQQ TR | QQQ | 46090E103 | $2.2M | 1.57% | 3,731 | SH |
| 15 | SELECT SECTOR SPDR TR | XLI | 81369Y704 | $1.9M | 1.41% | 11,987 | SH |
| 16 | SCHWAB STRATEGIC TR | SCHO | 808524862 | $1.9M | 1.41% | 79,618 | SH |
| 17 | SELECT SECTOR SPDR TR | XLC | 81369Y852 | $1.8M | 1.34% | 16,607 | SH |
| 18 | BERKSHIRE HATHAWAY INC DEL | BRK.B | 084670702 | $1.7M | 1.25% | 3,587 | SH |
| 19 | ISHARES TR | IVV | 464287200 | $1.7M | 1.22% | 2,562 | SH |
| 20 | SELECT SECTOR SPDR TR | XLF | 81369Y605 | $1.6M | 1.18% | 32,812 | SH |
| 21 | VANGUARD WORLD FD | VFH | 92204A405 | $1.6M | 1.17% | 13,249 | SH |
| 22 | SELECT SECTOR SPDR TR | XLP | 81369Y308 | $1.5M | 1.09% | 18,220 | SH |
| 23 | ISHARES TR | GOVT | 46429B267 | $1.4M | 1.06% | 63,141 | SH |
| 24 | VISA INC | V | 92826C839 | $1.4M | 1.02% | 4,622 | SH |
| 25 | DANAHER CORP DEL | DHR | 235851102 | $1.4M | 1.02% | 7,360 | SH |
| 26 | ARISTA NETWORKS INC | ANET | 040413205 | $1.4M | 1.00% | 11,136 | SH |
| 27 | ELI LILLY & CO | LLY | 532457108 | $1.3M | 0.95% | 1,419 | SH |
| 28 | VANGUARD TAX-MANAGED FDS | VEA | 921943858 | $1.3M | 0.95% | 20,267 | SH |
| 29 | BANK AMERICA CORP | BAC | 060505104 | $1.2M | 0.86% | 24,263 | SH |
| 30 | JPMORGAN CHASE & CO | JPM | 46625H100 | $1.2M | 0.86% | 4,021 | SH |
| 31 | VANGUARD CHARLOTTE FDS | BNDX | 92203J407 | $1.2M | 0.84% | 24,056 | SH |
| 32 | ADVANCED MICRO DEVICES INC | AMD | 007903107 | $1.1M | 0.84% | 5,652 | SH |
| 33 | VANGUARD INDEX FDS | VB | 922908751 | $1.1M | 0.82% | 4,300 | SH |
| 34 | ISHARES TR | EFA | 464287465 | $1.0M | 0.76% | 10,779 | SH |
| 35 | ISHARES TR | TIP | 464287176 | $1.0M | 0.76% | 9,429 | SH |
| 36 | THERMO FISHER SCIENTIFIC INC | TMO | 883556102 | $1.0M | 0.74% | 2,077 | SH |
| 37 | META PLATFORMS INC | META | 30303M102 | $1.0M | 0.74% | 1,763 | SH |
| 38 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $949.5K | 0.69% | 1,460 | SH |
| 39 | WISDOMTREE TR | USFR | 97717Y527 | $914.4K | 0.67% | 18,165 | SH |
| 40 | ISHARES TR | PFF | 464288687 | $910.8K | 0.66% | 30,040 | SH |
| 41 | WORLD GOLD TR | GLDM | 98149E303 | $895.1K | 0.65% | 9,657 | SH |
| 42 | VANGUARD INDEX FDS | VXF | 922908652 | $892.6K | 0.65% | 4,337 | SH |
| 43 | FIDELITY COVINGTON TRUST | FENY | 316092402 | $891.3K | 0.65% | 26,199 | SH |
| 44 | INTUITIVE SURGICAL INC | ISRG | 46120E602 | $887.9K | 0.65% | 1,926 | SH |
| 45 | SPDR SERIES TRUST | SPDG | 78468R465 | $880.4K | 0.64% | 21,122 | SH |
| 46 | ISHARES INC | IEMG | 46434G103 | $879.4K | 0.64% | 12,608 | SH |
| 47 | ARM HOLDINGS PLC | ARM | 042068205 | $873.6K | 0.64% | 5,775 | SH |
| 48 | CHEVRON CORPORATION | CVX | 166764100 | $867.3K | 0.63% | 4,192 | SH |
| 49 | STATE STR SPDR S&P 500 ETF T | SPY | 78462F103 | $857.8K | 0.63% | 1,319 | SH |
| 50 | MCDONALDS CORP | MCD | 580135101 | $835.1K | 0.61% | 2,687 | SH |
Filing History
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-03-31 | 2026-05-14 | $137.0M | 152 | 0001628280-26-034926 |
| 2025-12-31 | 2026-02-17 | $144.8M | 147 | 0001628280-26-008268 |
| 2025-09-30 | 2025-11-05 | $141.8M | 147 | 0001628280-25-049072 |