3 hedge funds and family offices disclose a ECL position in their latest SEC 13F filing — combined $278.7M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Mairs & Power | Mairs & Power Inc | 770,571 | $202.3M | 1.95% | 2025-12-31 |
| 2 | Tom Gayner | Markel Group Inc. | 274,300 | $76.4M | 0.58% | 2026-06-30 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 101 | $27K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold ECL. The largest disclosed position is Mairs & Power at $202.3M (1.9% 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 ECL, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
3 hedge funds and family offices disclose a ECL position in their latest SEC 13F filing — combined $278.7M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Mairs & Power | Mairs & Power Inc | 770,571 | $202.3M | 1.95% | 2025-12-31 |
| 2 | Tom Gayner | Markel Group Inc. | 274,300 | $76.4M | 0.58% | 2026-06-30 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 101 | $27K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold ECL. The largest disclosed position is Mairs & Power at $202.3M (1.9% 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 ECL, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
