3 hedge funds and family offices disclose a OSK position in their latest SEC 13F filing — combined $26.7M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Alex Roepers | Atlantic Investment Management Inc | 154,600 | $19.4M | 10.93% | 2025-12-31 |
| 2 | Mairs & Power | Mairs & Power Inc | 35,069 | $4.4M | 0.04% | 2025-12-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 19,602 | $2.9M | 0.01% | 2026-03-31 |
As of the latest 13F window, 3 tracked superinvestors hold OSK. The largest disclosed position is Alex Roepers at $19.4M (10.9% 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 OSK, 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 OSK position in their latest SEC 13F filing — combined $26.7M in market value.
| # | Investor | Fund | Shares | Value | % of Portfolio | Filed |
|---|---|---|---|---|---|---|
| 1 | Alex Roepers | Atlantic Investment Management Inc | 154,600 | $19.4M | 10.93% | 2025-12-31 |
| 2 | Mairs & Power | Mairs & Power Inc | 35,069 | $4.4M | 0.04% | 2025-12-31 |
| 3 | Ray Dalio | Bridgewater Associates LP | 19,602 | $2.9M | 0.01% | 2026-03-31 |
As of the latest 13F window, 3 tracked superinvestors hold OSK. The largest disclosed position is Alex Roepers at $19.4M (10.9% 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 OSK, how concentrated each position is, and the implied conviction level relative to the rest of each investor's book.
Key takeaways
