2 hedge funds and family offices disclose a SONY position in their latest SEC 13F filing — combined $6.9M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 335,000 | $6.7M | 0.05% | 2026-06-30 |
| 2 | Mairs & Power | Mairs & Power Inc | 7,830 | $200K | 0.00% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold SONY. The largest disclosed position is Tom Gayner at $6.7M (0.1% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying SONY, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
2 hedge funds and family offices disclose a SONY position in their latest SEC 13F filing — combined $6.9M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Tom Gayner | Markel Group Inc. | 335,000 | $6.7M | 0.05% | 2026-06-30 |
| 2 | Mairs & Power | Mairs & Power Inc | 7,830 | $200K | 0.00% | 2025-12-31 |
As of the latest 13F window, 2 tracked superinvestors hold SONY. The largest disclosed position is Tom Gayner at $6.7M (0.1% of portfolio).
13F filings are due 45 days after each quarter end and capture long-equity positions held by U.S. institutional managers with $100M+ AUM. Use this page to see exactly who is buying SONY, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
