Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Alphabet Inc. Class ACOM | COM | $10.5M | 5.7% |
| Apple Inc.COM | COM | $8.17M | 4.4% |
| Microsoft Corp.COM | COM | $7.08M | 3.8% |
| Nvidia Corp.COM | COM | $6.62M | 3.6% |
| Amazon.com Inc.COM | COM | $5.44M | 2.9% |
| Advanced Micro Devices ICOM | COM | $5.15M | 2.8% |
| Johnson & JohnsonCOM | COM | $4.61M | 2.5% |
| Corning Inc.COM | COM | $4.6M | 2.5% |
| Applied Matls Inc.COM | COM | $4.16M | 2.2% |
| Caterpillar Inc.COM | COM | $3.66M | 2.0% |
| JPMORGAN Chase & COCOM | COM | $2.91M | 1.6% |
| Rtx Corp.COM | COM | $2.53M | 1.4% |
| Visa Inc. Class ACOM | COM | $2.52M | 1.4% |
| Toll Bros Inc.COM | COM | $2.48M | 1.3% |
| Cisco Sys Inc.COM | COM | $2.39M | 1.3% |
| Vanguard S&P 500 ETFCOM | COM | $2.27M | 1.2% |
| Meta Platforms Inc. Class ACOM | COM | $2.18M | 1.2% |
| Micron Technology Inc.COM | COM | $2.16M | 1.2% |
| IBM Corp.COM | COM | $1.96M | 1.1% |
| ASML Hldg N V Fsponsored ADR 1 ADR Reps 1 Ord ShsCOM | COM | $1.9M | 1.0% |
| GE AerospaceCOM | COM | $1.83M | 1.0% |
| Taiwan Semiconductor M Fsponsored ADR 1 ADR Reps 5 Ord ShsCOM | COM | $1.71M | 0.9% |
| Berkshire Hathaway Class BCOM | COM | $1.6M | 0.9% |
| NRG Energy Inc.COM | COM | $1.49M | 0.8% |
| Blackrock Inc. NewCOM | COM | $1.47M | 0.8% |
| Allspring Multi Sector ICOM | COM | $1.46M | 0.8% |
| Blackrock Float Rate StrCOM | COM | $1.46M | 0.8% |
| Deere & COCOM | COM | $1.45M | 0.8% |
| Blackrock Floating RateCOM | COM | $1.43M | 0.8% |
| Franklin Limited DuratioCOM | COM | $1.41M | 0.8% |
| Walmart Inc.COM | COM | $1.4M | 0.8% |
| Disney Walt COCOM | COM | $1.39M | 0.7% |
| Invesco Senior Income TRCOM | COM | $1.38M | 0.7% |
| State Street SPDR S&P Biotech ETFCOM | COM | $1.33M | 0.7% |
| iShares Core MSCI Total International Stock ETFCOM | COM | $1.31M | 0.7% |
| Warner Bros Discovery Inclass Series ACOM | COM | $1.27M | 0.7% |
| Huntington Ingalls IndsCOM | COM | $1.23M | 0.7% |
| Exxon Mobil Corp.COM | COM | $1.2M | 0.6% |
| Expand Energy Corp.COM | COM | $1.17M | 0.6% |
| Lennar Corp. Class BCOM | COM | $1.15M | 0.6% |
| GE Vernova Inc.COM | COM | $1.14M | 0.6% |
| Oracle Corp.COM | COM | $1.12M | 0.6% |
| Freeport-mcmoran Inc.COM | COM | $1.11M | 0.6% |
| American Intl Group Inc.COM | COM | $1.09M | 0.6% |
| Quest Diagnostics Inc.COM | COM | $1.08M | 0.6% |
| KKR & CO Inc.COM | COM | $1.05M | 0.6% |
| American Express COCOM | COM | $1.04M | 0.6% |
| Crh Public Limited CO FCOM | COM | $1.03M | 0.6% |
| Qualcomm Inc.COM | COM | $1.01M | 0.5% |
| ConocophillipsCOM | COM | $998K | 0.5% |
- Class
- COM
- Share
- 5.7%
- Class
- COM
- Share
- 4.4%
- Class
- COM
- Share
- 3.8%
- Class
- COM
- Share
- 3.6%
- Class
- COM
- Share
- 2.9%
- Class
- COM
- Share
- 2.8%
- Class
- COM
- Share
- 2.5%
- Class
- COM
- Share
- 2.5%
- Class
- COM
- Share
- 2.2%
- Class
- COM
- Share
- 2.0%
- Class
- COM
- Share
- 1.6%
- Class
- COM
- Share
- 1.4%
- Class
- COM
- Share
- 1.4%
- Class
- COM
- Share
- 1.3%
- Class
- COM
- Share
- 1.3%
- Class
- COM
- Share
- 1.2%
- Class
- COM
- Share
- 1.2%
- Class
- COM
- Share
- 1.2%
- Class
- COM
- Share
- 1.1%
- Class
- COM
- Share
- 1.0%
- Class
- COM
- Share
- 1.0%
- Class
- COM
- Share
- 0.9%
- Class
- COM
- Share
- 0.9%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.8%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.7%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.6%
- Class
- COM
- Share
- 0.5%
- Class
- COM
- Share
- 0.5%
The share class is shown on a wider screen.
The 50 largest of 591 positions by value, with holdings of the same security combined. The 200 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 1911322
- File number
- 028-22312
- Options
- 0 call, 0 put
- In the 25 largest
- 49.4%
- Prior quarter
- $171M at 31 March 2026
- Positions opened
- 73
- Positions closed
- 48
Common questions
What are Byrne Asset Management’s 13F holdings worth?
$185 million across 591 positions for the quarter ended 30 June 2026.
What is Byrne Asset Management’s largest 13F holding?
ALPHABET INC CLASS A (COM) was the largest position at $10.5 million, or 5.7% of reported 13F value, as of 30 June 2026.
How concentrated is Byrne Asset Management’s 13F portfolio?
The ten largest positions accounted for 32.4% of reported value and the twenty-five largest for 49.4%, across 591 positions as of 30 June 2026.
Does Form 13F show everything Byrne Asset Management manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does Byrne Asset Management file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.