13F GuideFiling Basics
What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
AlphaSMO Research GuideRead Guide
CIK: 0001801145
Total reported value
$143.4M
$143.4M
135 檔
18.4%
At the close of Q1 2026, Bank of Marin disclosed equity holdings valued at approximately $143.4M, spread across 135 reported holdings.
Bank of Marin executed strategic sector rebalancing during Q1 2026, establishing 15 new positions while fully exiting 10 holdings and trimming 44 positions.
In terms of portfolio concentration, the top 5 core holdings (including AAPL, MSFT, XLK) accounted for 18.4% of total reported equity market value during Q1 2026.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple Inc | Stock-Tech | 5.01% | -1.80% | -1.41% | |
| 2 | MSFT | Microsoft CORP | Stock-Tech | 4.52% | -0.31% | -3.46% | |
| 3 | XLK | Ss Technology Select Sector | ETF-Tech | 4.12% | +1.34% | -0.41% | |
| 4 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 2.83% | +0.39% | -0.45% | |
| 5 | NVDA | Nvidia CORP | Stock-Tech | 2.73% | +0.34% | -2.81% | |
| 6 | VO | Vanguard Mid-cap ETF | ETF-Other | 2.43% | +0.18% | — | |
| 7 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 2.41% | +0.28% | -3.25% | |
| 8 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 2.23% | +0.06% | -8.55% | |
| 9 | XLY | Ss Consumer Disc Select Sect | ETF-Other | 2.22% | -0.02% | +4.02% | |
| 10 | XLV | Ss Health Care Select Sector | ETF-Other | 2.13% | +0.07% | +2.01% | |
| 11 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 2.07% | -0.33% | — | |
| 12 | QQQ | Invesco Qqq Trust Series 1 | ETF-Tech | 2.05% | -0.02% | +2.15% | |
| 13 | VOX | Vanguard Communication Servi | ETF-Other | 1.83% | -0.04% | -4.60% | |
| 14 | BMRC | Bank Of Marin Bancorp/ca | Stock-Other | 1.81% | +0.06% | -6.73% | |
| 15 | SCHO | Schwab Short-term US Treas | ETF-Other | 1.50% | +0.01% | +4.26% | |
| 16 | XLI | Ss Industrial Select Sector | ETF-Other | 1.41% | +0.15% | +6.28% | |
| 17 | XLC | Ss Comm Select Sector Spdr | ETF-Other | 1.34% | -0.15% | -10.87% | |
| 18 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 1.32% | +0.13% | -3.61% | |
| 19 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 1.25% | +0.26% | +15.45% | |
| 20 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 1.22% | +0.10% | +13.11% | |
| 21 | XLF | Ss Financial Select Sector | ETF-Other | 1.18% | +0.05% | +2.58% | |
| 22 | VFH | Vanguard Financials ETF | ETF-Other | 1.17% | +0.05% | +0.58% | |
| 23 | XLP | Ss Consumer Staples Sel Sect | ETF-Other | 1.09% | -0.04% | -1.33% | |
| 24 | GOVT | Ishares US Treasury Bond ETF | ETF-Gov Bonds | 1.06% | -0.33% | -1.32% | |
| 25 | V | Visa Inc-class A Shares | Stock-Financials | 1.02% | +0.09% | +2.89% | |
| 26 | DHR | Danaher CORP | Stock-Healthcare | 1.02% | +0.16% | +1.34% | |
| 27 | ANET | Arista Networks Inc | Stock-Tech | 1.00% | +0.20% | -1.02% | |
| 28 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.95% | +0.13% | -8.63% | |
| 29 | VEA | Vanguard Ftse Developed ETF | ETF-Other | 0.95% | -0.24% | +3.30% | |
| 30 | BNDX | Vanguard Total Intl Bond ETF | ETF-Other | 0.92% | +0.01% | +4.04% | |
| 31 | EFA | Ishares Msci Eafe ETF | ETF-Other | 0.88% | +0.01% | +1.99% | |
| 32 | BAC | Bank Of America CORP | Stock-Financials | 0.86% | +0.06% | — | |
| 33 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.86% | +0.04% | -1.95% | |
| 34 | AMD | Advanced Micro Devices | Stock-Tech | 0.84% | +1.29% | — | |
| 35 | TIP | Ishares Tips Bond ETF | ETF-Other | 0.82% | — | +4.89% | |
| 36 | VB | Vanguard Small-cap ETF | ETF-Other | 0.82% | +0.09% | — | |
| 37 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 0.74% | +0.08% | +6.40% | |
| 38 | VXF | Vanguard Extended Market ETF | ETF-Other | 0.74% | +0.10% | +12.39% | |
| 39 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.74% | -0.15% | +2.03% | |
| 40 | PFF | Ishares Preferred & Income S | ETF-Other | 0.72% | -0.01% | -10.98% | |
| 41 | USFR | Wisdomtree Floating Rate Tre | ETF-Other | 0.67% | -0.27% | -10.09% | |
| 42 | GLDM | Spdr Gold Minishares Trust | ETF-Commodities | 0.65% | -0.40% | -20.06% | |
| 43 | FENY | Fidelity Msci Energy Index | ETF-Large Cap & Growth | 0.65% | -0.14% | -0.24% | |
| 44 | CVX | Chevron CORP | Stock-Energy | 0.65% | -0.19% | +4.25% | |
| 45 | ISRG | Intuitive Surgical Inc | Stock-Healthcare | 0.65% | -0.12% | — | |
| 46 | SPDG | Ss Spdr P S&p Sec N D ETF | ETF-Other | 0.64% | +0.06% | +15.98% | |
| 47 | IEMG | Ishares Core Msci Emerging | ETF-Emerging Markets | 0.64% | -0.16% | +17.89% | |
| 48 | ARM | Arm Holdings Plc-adr | Stock-Tech | 0.64% | +0.40% | +23.27% | |
| 49 | BLV | Vanguard Long-term Bond ETF | ETF-Other | 0.61% | +0.01% | -7.19% | |
| 50 | MCD | Mcdonald's CORP | Stock-Consumer Disc | 0.61% | -0.14% | — |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | COST | Costco Wholesale CORP | +0.4% | — | Unchanged |
| 2 | ARM | Arm Holdings Plc-adr | +0.3% | +23.27% | Add |
| 3 | CVX | Chevron CORP | +0.2% | +4.25% | Add |
| 4 | FENY | Fidelity Msci Energy Index | +0.2% | -0.24% | Trim |
| 5 | XLI | Ss Industrial Select Sector | +0.2% | +6.28% | Add |
| 6 | PGR | Progressive CORP | +0.2% | +121.40% | Add |
| 7 | NFLX | Netflix Inc | +0.2% | +44.71% | Add |
| 8 | XLB | Ss Materials Select Sector | +0.2% | +31.80% | Add |
| 9 | BRK-B | Berkshire Hathaway Inc-cl B | +0.2% | +15.45% | Add |
| 10 | XLE | Ss Energy Select Sector | +0.2% | -0.82% | Trim |
| 11 | XOM | Exxon Mobil CORP | +0.2% | — | Unchanged |
| 12 | IVV | Ishares Core S&p 500 ETF | +0.2% | +13.11% | Add |
| 13 | IEMG | Ishares Core Msci Emerging | +0.1% | +17.89% | Add |
| 14 | SCHO | Schwab Short-term US Treas | +0.1% | +4.26% | Add |
| 15 | SPDG | Ss Spdr P S&p Sec N D ETF | +0.1% | +15.98% | Add |
| 16 | HON | Honeywell International Inc | +0.1% | — | Unchanged |
| 17 | VXF | Vanguard Extended Market ETF | +0.1% | +12.39% | Add |
| 18 | VO | Vanguard Mid-cap ETF | +0.1% | — | Unchanged |
| 19 | VEA | Vanguard Ftse Developed ETF | +0.1% | +3.30% | Add |
| 20 | XLP | Ss Consumer Staples Sel Sect | +0.1% | -1.33% | Trim |
| 21 | RWT | Redwood Trust Inc | +0.1% | +201.88% | Add |
| 22 | ADI | Analog Devices Inc | +0.1% | — | Unchanged |
| 23 | MRK | Merck & Co. Inc. | +0.1% | — | Unchanged |
| 24 | XLU | St Sr Utl Sl Se Spdr Etf-usd | +0.1% | +8.99% | Add |
| 25 | TIP | Ishares Tips Bond ETF | +0.1% | +4.89% | Add |
| 26 | BNDX | Vanguard Total Intl Bond ETF | +0.1% | +4.04% | Add |
| 27 | EFA | Ishares Msci Eafe ETF | +0.1% | +1.99% | Add |
| 28 | GEV | GE Vernova Inc | +0.1% | -16.74% | Trim |
| 29 | DE | Deere & Co | +0.1% | -8.70% | Trim |
| 30 | MCK | Mckesson CORP | +0.1% | — | Unchanged |
| 31 | ETN | Eaton Corporation plc | +0.1% | +4.42% | Add |
| 32 | XLV | Ss Health Care Select Sector | +0.1% | +2.01% | Add |
| 33 | VIS | Vanguard Industrials ETF | +0.1% | +14.65% | Add |
| 34 | SRLN | Ss Blackstone Sr Loan ETF | +0.1% | +14.33% | Add |
| 35 | AVDE | Avantis International Equity | +0.1% | +3.39% | Add |
| 36 | SPSM | Ss Spdr P S&p 600 Small Cap | +0.1% | +3.94% | Add |
| 37 | VB | Vanguard Small-cap ETF | +0.1% | — | Unchanged |
| 38 | NEE | Nextera Energy Inc | 0% | — | Unchanged |
| 39 | AVGO | Broadcom Inc | 0% | +24.29% | Add |
| 40 | VCR | Vanguard Consumer Discre ETF | 0% | +19.80% | Add |
| 41 | AVUV | Avantis US Small Cap Value | 0% | +4.18% | Add |
| 42 | JIRE | Jpmorgan Int Res Enh Eqty | 0% | +3.76% | Add |
| 43 | GOVT | Ishares US Treasury Bond ETF | 0% | -1.32% | Trim |
| 44 | PANW | Palo Alto Networks Inc | 0% | +20.52% | Add |
| 45 | VWO | Vanguard Ftse Emerging Marke | 0% | +5.10% | Add |
| 46 | FERG | Ferguson Enterprises Inc | 0% | -1.05% | Trim |
| 47 | XMHQ | Invesco S&p Midcap Qual ETF | 0% | +1.74% | Add |
| 48 | MCD | Mcdonald's CORP | 0% | — | Unchanged |
| 49 | HD | Home Depot Inc | 0% | +5.63% | Add |
| 50 | SYK | Stryker CORP | 0% | +7.23% | Add |
According to official SEC Form 13F filings, Bank of Marin reported a total U.S. public equity portfolio value of $143.4M across 135 disclosed positions in Q1 2026.
During Q1 2026, Bank of Marin's top holdings by market value included AAPL (5.0%)、MSFT (4.5%)、XLK (4.1%). The largest single position, AAPL, represented 5.0% of total portfolio value.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
Top New Position Initiated
PSX
市值: $771.5K
Top Position Liquidated / Trimmed
SCHW
前期市值: $631.9K
In Q1 2026, Bank of Marin made 115 total portfolio adjustments, initiating 15 new buys, adding to 46 positions, trimming 44 holdings, and fully liquidating 10 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.