ATLANTIC INVESTMENT MANAGEMENT, INC.: OSHKOSH CORP (OSK) (OSK): Quarterly 13F Position History
As of Q1 2026, ATLANTIC INVESTMENT MANAGEMENT, INC. reported 136,300 shares of OSHKOSH CORP (OSK) (OSK), worth $20.1M and representing 11.7% of its 13F equity book. Quarter-over-quarter share count change: 18,300 (-11.8%) . The position first appeared in Q4 2016 and has been disclosed across 37 13F-HR filings in Pactolio's tracked window.
- 136,300Shares Held (Latest Filing)
- $20.1MReported Market Value (Latest Filing)
- 11.7%Portfolio Weight (% of 13F Equity Book)
- 18,300Quarter-over-Quarter Share Change
- +$642.3KQuarter-over-Quarter Value Change
- 491,464Peak Reported Shares (Historical)
Quarterly 13F-HR Disclosure History Source: SEC 13F-HR filings, 37 quarter s
| Quarter | Shares | QoQ Share Change | Share Change (%) | Market Value | Weight | Implied Price |
|---|---|---|---|---|---|---|
| Q1 2026 | 136,300 | 18,300 | -11.8% | $20.1M | 11.7% | $147.2 |
| Q4 2025 | 154,600 | +5,500 | +3.7% | $19.4M | 10.9% | $125.6 |
| Q3 2025 | 149,100 | 60,000 | -28.7% | $19.3M | 11.1% | $129.7 |
| Q2 2025 | 209,100 | 26,800 | -11.4% | $23.7M | 12.1% | $113.5 |
| Q1 2025 | 235,900 | +5,900 | +2.6% | $22.2M | 12.4% | $94.1 |
| Q4 2024 | 230,000 | +230,000 | — | $21.9M | 10.6% | $95.1 |
| Q3 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2024 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2023 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2022 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2021 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2020 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2020 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2020 | 0 | 362,185 | -100.0% | $0 | 0.0% | — |
| Q1 2020 | 362,185 | +362,185 | — | $23.3M | 13.1% | $64.3 |
| Q4 2019 | 0 | 426,788 | -100.0% | $0 | 0.0% | — |
| Q3 2019 | 426,788 | 41,385 | -8.8% | $32.4M | 11.4% | $75.8 |
| Q2 2019 | 468,173 | 23,291 | -4.7% | $39.1M | 10.5% | $83.5 |
| Q1 2019 | 491,464 | +8,439 | +1.7% | $36.9M | 9.4% | $75.1 |
| Q4 2018 | 483,025 | +427,725 | +773.5% | $29.6M | 7.8% | $61.3 |
| Q3 2018 | 55,300 | 6,800 | -11.0% | $3.9M | 0.7% | $71.2 |
| Q2 2018 | 62,100 | +62,100 | — | $4.4M | 0.7% | $70.3 |
| Q1 2018 | 0 | 0 | — | $0 | 0.0% | — |
| Q4 2017 | 0 | 0 | — | $0 | 0.0% | — |
| Q3 2017 | 0 | 0 | — | $0 | 0.0% | — |
| Q2 2017 | 0 | 0 | — | $0 | 0.0% | — |
| Q1 2017 | 0 | 60,000 | -100.0% | $0 | 0.0% | — |
| Q4 2016 | 60,000 | — | — | $3.9M | 0.5% | $64.6 |
Methodology & FAQ
How This Position History Is Sourced
Each row is one SEC Form 13F-HR filing disclosing this position. Share count, market value, and reported quarter are taken verbatim from the filing; portfolio weight is recomputed against the same filing's total reported equity book. Implied price-per-share is market value divided by shares — a quarter-end mark, not the manager's cost basis. See the full methodology document for the normalization rules.
When did ATLANTIC INVESTMENT MANAGEMENT, INC. first disclose a OSK position in 13F-HR filings?
ATLANTIC INVESTMENT MANAGEMENT, INC. first reported OSHKOSH CORP (OSK) (OSK) on its 13F-HR filing for the period ending 2016-12-31 (Q4 2016). The position has appeared on 37 reported quarters within Pactolio's tracked window.
What was ATLANTIC INVESTMENT MANAGEMENT, INC.'s most recent quarter-over-quarter share-count change in OSK?
Between Q4 2025 and Q1 2026, ATLANTIC INVESTMENT MANAGEMENT, INC. reduced its OSK position by 18,300 shares (-11.8%), leaving 136,300 shares at a market value of $20.1M.
Does the implied price-per-share represent ATLANTIC INVESTMENT MANAGEMENT, INC.'s cost basis in OSK?
No. The implied price-per-share column is the 13F-HR reported market value divided by reported share count on the filing date (end of quarter). It is a quarter-end mark, not a cost basis or transaction price. Use it as a sanity check on the value column, not as an indicator of the manager's entry or exit price.