Oshkosh Corporation
US ˙ NYSE ˙ US6882392011

SecurityOSK / Oshkosh Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership392,974 shares
Latest Disclosed Value $ 49,369,937
Sei Investments Co ownership in OSK / Oshkosh Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 392,974 shares of Oshkosh Corporation (US:OSK) valued at $49,369,324 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 457,877 shares of Oshkosh Corporation. This represents a change in shares of -14.17% during the quarter. The current value of the position is $52,678,165 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (OSK) in the form of stock options.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

OSK / Oshkosh Corporation Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-02-13 2025-12-31 13F OSHKOSH COM 688239201 392,974 -64,903 -14.17 49,370 -16.87
2025-11-13 2025-09-30 13F OSHKOSH COM 688239201 457,877 89,700 24.36 59,389 42.07 0.0639
2025-08-14 2025-06-30 13F OSHKOSH COM 688239201 368,177 -146,280 -28.43 41,802 -13.63 0.0485
2025-05-14 2025-03-31 13F/A-1 OSHKOSH COM 688239201 514,457 -14,483 -2.74 48,400 -3.76 0.0623
2025-05-13 2025-03-31 13F OSHKOSH COM 688239201 528,948 8 50,277 0.0547
2025-02-11 2024-12-31 13F OSHKOSH COM 688239201 528,940 35,072 7.10 50,289 1.61 0.0646
2024-11-12 2024-09-30 13F OSHKOSH COM 688239201 493,868 96,915 24.41 49,489 15.23 0.0643
2024-08-13 2024-06-30 13F OSHKOSH COM 688239201 396,953 46,649 13.32 42,949 -1.68 0.0608
2024-05-07 2024-03-31 13F OSHKOSH COM 688239201 350,304 -7,053 -1.97 43,686 12.76 0.0640
2024-02-14 2023-12-31 13F OSHKOSH COM 688239201 357,357 -17,230 -4.60 38,741 8.38 0.0622
2023-11-14 2023-09-30 13F OSHKOSH COM 688239201 374,587 -103,371 -21.63 35,747 -13.63 0.0642
2023-08-11 2023-06-30 13F OSHKOSH COM 688239201 477,958 38,504 8.76 41,386 13.22 0.0722
2023-05-12 2023-03-31 13F OSHKOSH COM 688239201 439,454 -19,236 -4.19 36,554 -9.64 0.0679
2023-02-10 2022-12-31 13F OSHKOSH COM 688239201 458,690 16,927 3.83 40,452 30.27 0.0899
2022-11-14 2022-09-30 13F OSHKOSH COM 688239201 441,763 27,797 6.71 31,051 -8.68 0.0693
2022-08-15 2022-06-30 13F OSHKOSH COM 688239201 413,966 85,810 26.15 34,001 2.89 0.0734
2022-05-13 2022-03-31 13F OSHKOSH COM 688239201 328,156 67,454 25.87 33,047 12.32 0.0664
2022-02-14 2021-12-31 13F OSHKOSH COM 688239201 260,702 168,089 181.50 29,423 206.52 0.0552
2021-11-12 2021-09-30 13F OSHKOSH COM 688239201 92,613 5,009 5.72 9,599 -12.98 0.0201
2021-08-06 2021-06-30 13F OSHKOSH COM 688239201 87,604 2,000 2.34 11,031 11.00 0.0245
2021-05-12 2021-03-31 13F OSHKOSH COM 688239201 85,604 -89,834 -51.21 9,938 -34.43 0.0250
2021-02-08 2020-12-31 13F OSHKOSH COM 688239201 175,438 -105,291 -37.51 15,156 -26.56 0.0392
2020-12-04 2020-09-30 13F/A-1 OSHKOSH COM 688239201 280,729 47,330 20.28 20,637 23.29 0.0598
2020-11-06 2020-09-30 13F OSHKOSH COM 688239201 283,489 50,090 20,840 50,178.0865
2020-08-17 2020-06-30 13F/A-1 OSHKOSH COM 688239201 233,399 -197 -0.08 16,738 11.42 0.0519
2020-08-11 2020-06-30 13F OSHKOSH COM 688239201 230,830 -2,766 21,573 58,517.9108
2020-05-14 2020-03-31 13F OSHKOSH COM 688239201 233,596 1,511 0.65 15,023 -31.62 0.0552
2020-02-06 2019-12-31 13F OSHKOSH COM 688239201 232,085 33,901 17.11 21,969 46.16 0.0655
2019-11-12 2019-09-30 13F OSHKOSH COM 688239201 198,184 4,997 2.59 15,031 -7.19 0.0385
2019-08-14 2019-06-30 13F OSHKOSH COM 688239201 193,187 -2,721 -1.39 16,196 10.11 0.0529
2019-05-15 2019-03-31 13F OSHKOSH COM 688239201 195,908 8,945 4.78 14,709 10.64 0.0494
2019-02-13 2018-12-31 13F OSHKOSH COM 688239201 186,963 -14,836 -7.35 13,294 -7.58 0.0473
2018-11-08 2018-09-30 13F OSHKOSH COM 688239201 201,799 39,985 24.71 14,384 26.42 0.0521
2018-08-03 2018-06-30 13F OSHKOSH COM 688239201 161,814 37,064 29.71 11,378 18.04 0.0387
2018-05-11 2018-03-31 13F OSHKOSH COM 688239201 124,750 35,829 40.29 9,639 19.27 0.0369
2018-02-08 2017-12-31 13F OSHKOSH COM 688239201 88,921 -3,594 -3.88 8,082 5.83 0.0281
2017-11-06 2017-09-30 13F OSHKOSH COM 688239201 92,515 -4,222 -4.36 7,637 14.62 0.0271
2017-07-31 2017-06-30 13F OSHKOSH COM 688239201 96,737 -3,710 -3.69 6,663 -3.29 0.0266
2017-05-05 2017-03-31 13F OSHKOSH COM 688239201 100,447 12,396 14.08 6,890 21.13 0.0302
2017-02-02 2016-12-31 13F OSHKOSH COM 688239201 88,051 62,633 246.41 5,688 299.44 0.0275
2016-11-04 2016-09-30 13F OSHKOSH COM 688239201 25,418 -10,196 -28.63 1,424 -16.19 0.0072
2016-08-11 2016-06-30 13F OSHKOSH COM 688239201 35,614 -3,099 -8.01 1,699 7.40 0.0102
2016-05-10 2016-03-31 13F/A-1 OSHKOSH COM 688239201 38,713 -2,516 -6.10 1,582 -1.68 0.0098
2016-02-03 2015-12-31 13F OSHKOSH COM 688239201 41,229 -32,132 -43.80 1,609 -39.62 0.0098
2015-11-02 2015-09-30 13F/A-1 OSHKOSH COM 688239201 73,361 17,935 32.36 2,665 13.40 0.0245
2015-10-30 2015-09-30 13F OSHKOSH COM 688239201 73,361 2,666
2015-08-07 2015-06-30 13F/A-1 ORITANI FINL CORP DEL PUT 688239201 0 -16,253 -100.00 0 -100.00
2015-08-07 2015-06-30 13F/A-1 OSHKOSH COM 688239201 55,426 39,173 241.02 2,350 195.97 0.0212
2015-08-04 2015-06-30 13F OSHKOSH COM 688239201 55,426 39,173 2,350 0.0212
2015-05-14 2015-03-31 13F/A-1 OSHKOSH COM 688239201 16,253 -15,543 -48.88 794 -48.74 0.0069
2015-05-01 2015-03-31 13F ORITANI FINL CORP DEL PUT 688239201 16,253 16,253 794 0.0069
2015-02-10 2014-12-31 13F OSHKOSH COM 688239201 31,796 31,796 1,549 0.0137
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2015-08-07 2015-06-30 13F/A ORITANI FINL CORP DEL PUT 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-01 2015-03-31 13F ORITANI FINL CORP DEL PUT 16,253 794 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.