OSHKOSH CORP (OSK) Stock Institutional Trading Activity
OSHKOSH CORP (OSK) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q1 2026), investors with some of the largest reported share count changes include Hancock Classic Value, Greenhaven Associates, Sequoia Financial Advisors, Atlantic Investment Management, and Mairs & Power Growth Fund. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- OSHKOSH CORP (OSK) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2017 | Mairs & Power Growth Fund | Sell | -14,000 | 174,757 | $15,884 |
| Q4 2017 | Renaissance Technologies LLC | Buy | 7,100 | 170,900 | $15,533 |
| Q2 2017 | Mairs & Power Growth Fund | Buy | 67 | 188,757 | $13,002 |
| Q1 2017 | Mairs & Power Growth Fund | Buy | 400 | 188,690 | $12,942 |
| Q1 2017 | Renaissance Technologies LLC | Sell | -941,000 | 163,800 | $11,235 |
| Q4 2016 | Mairs & Power Growth Fund | Sell | -23,890 | 188,290 | $12,165 |
| Q4 2016 | Atlantic Investment Management | Sell | -272,431 | 60,000 | $3,877 |
| Q4 2016 | Renaissance Technologies LLC | Buy | 699,300 | 1,104,800 | $71,381 |
| Q3 2016 | Mairs & Power Growth Fund | Buy | 24,040 | 212,180 | $11,882 |
| Q3 2016 | Olstein Capital Management | Sell | -79,315 | 123,914 | $6,939 |
| Q3 2016 | Renaissance Technologies LLC | Buy | 386,986 | 405,500 | $22,708 |
| Q2 2016 | Mairs & Power Growth Fund | Sell | -5,400 | 188,140 | $8,976 |
| Q2 2016 | Olstein Capital Management | Sell | -116,215 | 203,229 | $9,696 |
| Q1 2016 | Mairs & Power Growth Fund | Buy | 16,700 | 193,540 | $7,910 |
| Q1 2016 | Olstein Capital Management | Buy | 20,544 | 319,444 | $13,056 |
| Q4 2015 | Mairs & Power Growth Fund | Buy | 19,000 | 176,840 | $6,904 |
| Q4 2015 | Olstein Capital Management | Sell | -21,000 | 298,900 | $11,669 |
| Q4 2015 | Atlantic Investment Management | Sell | -585 | 332,431 | $12,978 |
| Q3 2015 | Mairs & Power Growth Fund | Buy | 34,960 | 157,840 | $5,734 |
| Q3 2015 | Olstein Capital Management | Sell | -25,100 | 319,900 | $11,622 |
| Q3 2015 | Atlantic Investment Management | Buy | 333,016 | 333,016 | $12,098 |
| Q2 2015 | Mairs & Power Growth Fund | Buy | 25,280 | 122,880 | $5,208 |
| Q2 2015 | Olstein Capital Management | Buy | 111,000 | 345,000 | $14,621 |
| Q1 2015 | Mairs & Power Growth Fund | Buy | 11,800 | 97,600 | $4,762 |
| Q1 2015 | Olstein Capital Management | Buy | 234,000 | 234,000 | $11,416 |
| Q4 2014 | Mairs & Power Growth Fund | Buy | 10,800 | 85,800 | $4,174 |
| Q3 2014 | Mairs & Power Growth Fund | Buy | 10,500 | 75,000 | $3,311 |
| Q3 2014 | Third Avenue Management | Buy | 23,520 | 277,129 | $12,235 |
| Q2 2014 | Third Avenue Management | Sell | -46,213 | 253,609 | $14,083 |
| Q1 2014 | Mairs & Power Growth Fund | Sell | -800 | 64,500 | $3,797 |
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.