Cornerstone Advisors, LLC
- SEC CIK
- 0001775446
- Latest filing
- Aug 7, 2026
AMT holding history
American Tower Corp in every 13F filed by Cornerstone Advisors, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
AMT overviewAll 13F holders of AMTFull Q2 2026 holdings
- Shares (Q4 2025)
- 0
- Sold out in Q4 2025
- Value
- $0
- % of portfolio
- 0.0%
- Quarters held
- 16
- Since Q2 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q4 2025 | 0 | $0 | 0.0% | −15,700−100.0% | Sold out | Holders |
| Q3 2025 | 15,700 | $3.02M | 0.1% | −1,300−7.6% | Reduced | Holders |
| Q2 2025 | 17,000 | $3.76M | 0.1% | −2,400−12.4% | Reduced | Holders |
| Q1 2025 | 19,400 | $4.22M | 0.2% | +9,100+88.3% | Added | Holders |
| Q4 2024 | 10,300 | $1.89M | 0.1% | 00.0% | Unchanged | Holders |
| Q3 2024 | 10,300 | $2.40M | 0.1% | +3,500+51.5% | Added | Holders |
| Q2 2024 | 6,800 | $1.32M | 0.1% | −3,400−33.3% | Reduced | Holders |
| Q1 2024 | 10,200 | $2.02M | 0.1% | 00.0% | Unchanged | Holders |
| Q4 2023 | 10,200 | $2.20M | 0.1% | −2,000−16.4% | Reduced | Holders |
| Q3 2023 | 12,200 | $2.01M | 0.1% | +12,200 | New | Holders |
| Q1 2023 | 0 | $0 | 0.0% | −60,000−100.0% | Sold out | Holders |
| Q4 2022 | 60,000 | $12.7M | 0.6% | 00.0% | Unchanged | Holders |
| Q3 2022 | 60,000 | $12.9M | 0.6% | +6,000+11.1% | Added | Holders |
| Q2 2022 | 54,000 | $13.8M | 0.7% | +15,000+38.5% | Added | Holders |
| Q1 2022 | 39,000 | $9.80M | 0.6% | 00.0% | Unchanged | Holders |
| Q4 2021 | 39,000 | $11.4M | 0.6% | 00.0% | Unchanged | Holders |
| Q3 2021 | 39,000 | $10.4M | 0.6% | 00.0% | Unchanged | Holders |
| Q2 2021 | 39,000 | $10.5M | 0.6% | +39,000 | New | Holders |