OSHKOSH CORP (OSK) Institutional Buying Activity
Institutional investors tracked by InsiderSet increased exposure to OSHKOSH CORP (OSK) during the quarter ended March 31, 2026 through a combination of new purchases and expanded existing positions disclosed in SEC Form 13F filings.
The largest institutional buyer of OSK during the latest reporting period was Hancock Classic Value, which increased its reported OSK position by approximately $59.71M based on quarter-end filing values. Several additional hedge funds and long-term asset managers also reported meaningful increases in OSK exposure during the quarter.
Institutional buying activity can provide insight into investor conviction, sector allocation trends, and smart money positioning toward OSHKOSH CORP (OSK). InsiderSet tracks quarterly accumulation trends, new institutional positions, ownership increases, and estimated performance of newly disclosed holdings using SEC filing data and recent market prices.
The investors highlighted on this page collectively added approximately $142.21M in reported OSK exposure during the latest filing period, reflecting continued institutional interest in OSHKOSH CORP's growth initiatives and strategic positioning.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2026 | Greenhaven Associates | Buy | 9,709 | 2,531,005 | $372,589,246 |
| Q1 2026 | Sequoia Financial Advisors | Buy | 2,219 | 2,219 | $326,602 |
| Q4 2025 | Atlantic Investment Management | Buy | 5,500 | 154,600 | $19,422,398 |
| Q2 2025 | Hancock Classic Value | Buy | 525,887 | 525,887 | $59,709,210 |
| Q2 2025 | Greenhaven Associates | Buy | 800 | 2,554,406 | $290,027,257 |
| Q1 2025 | Renaissance Technologies LLC | Buy | 16,600 | 55,200 | $5,193,216 |
| Q1 2025 | Atlantic Investment Management | Buy | 5,900 | 235,900 | $22,193,472 |
| Q1 2025 | Greenhaven Associates | Buy | 1,500 | 2,553,606 | $240,243,252 |
| Q4 2024 | Greenhaven Associates | Buy | 15,622 | 2,552,106 | $242,628,717 |
| Q3 2024 | Greenhaven Associates | Buy | 19,442 | 2,536,484 | $254,181,062 |
| Q3 2024 | Renaissance Technologies LLC | Buy | 18,237 | 123,300 | $12,355,893 |
| Q2 2024 | Greenhaven Associates | Buy | 36,953 | 2,517,042 | $272,343,944 |
| Q2 2024 | Renaissance Technologies LLC | Buy | 21,763 | 105,063 | $11,367,817 |
| Q1 2024 | Greenhaven Associates | Buy | 10,300 | 2,480,089 | $309,291,899 |
| Q4 2023 | Greenhaven Associates | Buy | 11,100 | 2,469,789 | $267,749,825 |
| Q3 2023 | Greenhaven Associates | Buy | 100,861 | 2,458,689 | $234,632,691 |
| Q2 2023 | Greenhaven Associates | Buy | 400,519 | 2,357,828 | $204,164,327 |
| Q2 2023 | Renaissance Technologies LLC | Buy | 32,200 | 84,400 | $7,308 |
| Q1 2023 | Greenhaven Associates | Buy | 219,635 | 1,957,309 | $162,808,963 |
| Q1 2023 | Renaissance Technologies LLC | Buy | 25,200 | 52,200 | $4,342 |
| Q3 2022 | Greenhaven Associates | Buy | 1,739,974 | 1,739,974 | $122,303 |
| Q3 2022 | Turtle Creek Asset Management | Buy | 10,500 | 49,350 | $3,469 |
| Q3 2022 | Mairs & Power Growth Fund | Buy | 9,913 | 153,221 | $10,770 |
| Q2 2022 | Turtle Creek Asset Management | Buy | 9,850 | 38,850 | $3,191 |
| Q4 2021 | Mairs & Power Growth Fund | Buy | 14,649 | 157,624 | $17,766 |
| Q4 2021 | Turtle Creek Asset Management | Buy | 4,050 | 29,950 | $3,376 |
| Q3 2021 | Renaissance Technologies LLC | Buy | 108,300 | 256,500 | $26,258 |
| Q3 2021 | Turtle Creek Asset Management | Buy | 25,900 | 25,900 | $2,651 |
| Q3 2021 | Mairs & Power Growth Fund | Buy | 7,900 | 142,975 | $14,636 |
| Q1 2021 | Mairs & Power Growth Fund | Buy | 8,897 | 153,815 | $18,252 |
Frequently asked questions about OSK activity
Which institutional owners are buying OSK?
Institutional owners buying OSK include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in OSK activity?
"Buy" means an investor increased their reported position in OSK compared to the prior reporting period. This reflects growing exposure to OSHKOSH CORP (OSK) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in OSK increasing?
Institutional interest in OSK can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.