3 hedge funds and family offices disclose a JBTM position in their latest SEC 13F filing — combined $11.3M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Mairs & Power | Mairs & Power Inc | 68,757 | $10.4M | 0.10% | 2025-12-31 |
| 2 | Thomas Russo | Gardner Russo & Quinn LLC | 7,250 | $927K | 0.01% | 2026-03-31 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 156 | $24K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold JBTM. The largest disclosed position is Mairs & Power at $10.4M (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 JBTM, 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 JBTM position in their latest SEC 13F filing — combined $11.3M in market value. Of those, 1 are classified as value investors.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Mairs & Power | Mairs & Power Inc | 68,757 | $10.4M | 0.10% | 2025-12-31 |
| 2 | Thomas Russo | Gardner Russo & Quinn LLC | 7,250 | $927K | 0.01% | 2026-03-31 |
| 3 | Christopher Bloomstran | Semper Augustus Investments Group LLC | 156 | $24K | 0.00% | 2025-12-31 |
As of the latest 13F window, 3 tracked superinvestors hold JBTM. The largest disclosed position is Mairs & Power at $10.4M (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 JBTM, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
