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.
CIK: 0001608485
Total reported value
$2.4B
$2.4B
22 檔
49.5%
During the Q1 2026 filing period, Lansdowne Partners (CIK: 0001608485) submitted its Form 13F report to the U.S. SEC, disclosing a tracked public equity portfolio valued at $2.4B across 22 reported positions.
In Q1 2026, Lansdowne Partners displayed an active expansion posture, initiating 2 new positions and adding to 18 existing holdings, outstripping position reductions.
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TSM | Taiwan Semiconductor-sp Adr | Stock-Tech | 24.19% | +4.81% | +0.78% | |
| 2 | LIN | Linde plc | Stock-Materials | 11.93% | -6.84% | +97.49% | |
| 3 | ADI | Analog Devices Inc | Stock-Tech | 11.32% | -1.93% | +4.62% | |
| 4 | DAL | Delta Air Lines Inc | Stock-Industrials | 8.85% | +0.67% | +2.96% | |
| 5 | SLB | Slb LTD | Stock-Energy | 8.14% | -3.24% | — | |
| 6 | ARM | Arm Holdings Plc-adr | Stock-Tech | 7.58% | +8.06% | +98.17% | |
| 7 | UAL | United Airlines Holdings Inc | Stock-Industrials | 7.55% | +1.12% | +24.46% | |
| 8 | TECK | Teck Resources Ltd-cls B | Stock-Materials | 5.66% | -4.90% | +13.05% | |
| 9 | SW | Smurfit Westrock Plc | Stock-Consumer Disc | 3.99% | -3.33% | +627.08% | |
| 10 | GOLF | Acushnet Holdings CORP | Stock-Other | 2.62% | -0.12% | -1.28% | |
| 11 | ETN | Eaton Corporation plc | Stock-Industrials | 2.48% | -1.89% | +17.89% | |
| 12 | IONQ | Ionq Inc | Stock-Tech | 1.23% | +0.89% | +23.77% | |
| 13 | TXN | Texas Instruments Inc | Stock-Tech | 0.96% | +0.18% | +17.95% | |
| 14 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.87% | +0.43% | +64.11% | |
| 15 | B | Barrick Mining CORP | Stock-Materials | 0.75% | -0.13% | +29.18% | |
| 16 | ALC | Alcon Inc. | Stock-Healthcare | 0.54% | -0.54% | EXIT | |
| 17 | RAL | Ralliant CORP | Stock-Tech | 0.43% | +0.17% | +94.91% | |
| 18 | MDT | Medtronic plc | Stock-Healthcare | 0.41% | -0.12% | +182.94% | |
| 19 | ROK | Rockwell Automation Inc | Stock-Industrials | 0.27% | -0.08% | -54.77% | |
| 20 | BKR | Baker Hughes Co | Stock-Energy | 0.13% | +5.56% | — | |
| 21 | AEM | Agnico Eagle Mines LTD | Stock-Materials | 0.05% | -0.02% | +2.06% | |
| 22 | MAR | Marriott International -cl A | Stock-Consumer Disc | 0.02% | — | +9.01% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | LIN | Linde plc | +4.8% | +97.49% | Add |
| 2 | ARM | Arm Holdings Plc-adr | +3.8% | +98.17% | Add |
| 3 | SW | Smurfit Westrock Plc | +3.3% | +627.08% | Add |
| 4 | MDT | Medtronic plc | +0.2% | +182.94% | Add |
| 5 | AMZN | Amazon.com Inc | +0.1% | +64.11% | Add |
| 6 | RAL | Ralliant CORP | +0.1% | +94.91% | Add |
| 7 | AEM | Agnico Eagle Mines LTD | 0% | +2.06% | Add |
| 8 | MAR | Marriott International -cl A | 0% | +9.01% | Add |
| 9 | TXN | Texas Instruments Inc | 0% | +17.95% | Add |
| 10 | ETN | Eaton Corporation plc | -0.1% | +17.89% | Add |
| 11 | B | Barrick Mining CORP | -0.1% | +29.18% | Add |
| 12 | ALC | Alcon Inc. | -0.3% | +1.81% | Add |
| 13 | GOLF | Acushnet Holdings CORP | -0.5% | -1.28% | Trim |
| 14 | ROK | Rockwell Automation Inc | -0.6% | -54.77% | Trim |
| 15 | TECK | Teck Resources Ltd-cls B | -0.7% | +13.05% | Add |
| 16 | IONQ | Ionq Inc | -0.9% | +23.77% | Add |
| 17 | ADI | Analog Devices Inc | -1.3% | +4.62% | Add |
| 18 | UAL | United Airlines Holdings Inc | -2.5% | +24.46% | Add |
| 19 | DAL | Delta Air Lines Inc | -3.4% | +2.96% | Add |
| 20 | TSM | Taiwan Semiconductor-sp Adr | -5.3% | +0.78% | Add |
| 21 | SLB | Slb LTD | — | NEW | New buy |
| 22 | CRH | CRH plc | — | EXIT | Sold out |
| 23 | 75Z | Soho House & Co Inc | — | EXIT | Sold out |
| 24 | FTV | Fortive CORP | — | EXIT | Sold out |
| 25 | BKR | Baker Hughes Co | — | NEW | New buy |
| 26 | FLUT | Flutter Entertainment plc | — | EXIT | Sold out |
According to official SEC Form 13F filings, Lansdowne Partners reported a total U.S. public equity portfolio value of $2.4B across 22 disclosed positions in Q1 2026.
During Q1 2026, Lansdowne Partners's top holdings by market value included TSM (24.2%)、LIN (11.9%)、ADI (11.3%). The largest single position, TSM, represented 24.2% 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.
In terms of portfolio concentration, the top 5 core holdings (including TSM, LIN, ADI) accounted for 49.5% of total reported equity market value during Q1 2026.
Top New Position Initiated
SLB
市值: $152.0M
Top Position Liquidated / Trimmed
CRH
前期市值: $38.4M
In Q1 2026, Lansdowne Partners made 26 total portfolio adjustments, initiating 2 new buys, adding to 18 positions, trimming 2 holdings, and fully liquidating 4 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.
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