Huntsman Corporation
US ˙ NYSE ˙ US4470111075

SecurityHUN / Huntsman Corporation
InstitutionSei Investments Co
Latest Disclosed Ownership157,188 shares
Latest Disclosed Value $ 1,571,880
Sei Investments Co ownership in HUN / Huntsman Corporation

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 157,188 shares of Huntsman Corporation (US:HUN) valued at $1,571,880 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 59,217 shares of Huntsman Corporation. This represents a change in shares of 165.44% during the quarter. The current value of the position is $2,315,379 USD.

Sei Investments Co has a history of taking positions in derivatives of the underlying security (HUN) 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.

HUN / Huntsman 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 HUNTSMAN COM 447011107 157,188 97,971 165.44 1,572 195.86 0.0016
2025-11-13 2025-09-30 13F HUNTSMAN COM 447011107 59,217 -829 -1.38 532 -15.04 0.0006
2025-08-14 2025-06-30 13F HUNTSMAN COM 447011107 60,046 4,681 8.45 626 -28.49 0.0007
2025-05-14 2025-03-31 13F/A-1 HUNTSMAN COM 447011107 55,365 -368,994 -86.95 874 -88.58 0.0011
2025-05-13 2025-03-31 13F HUNTSMAN COM 447011107 422,298 -2,061 7,587 0.0083
2025-02-11 2024-12-31 13F HUNTSMAN COM 447011107 424,359 -59,341 -12.27 7,651 -34.63 0.0098
2024-11-12 2024-09-30 13F HUNTSMAN COM 447011107 483,700 66,791 16.02 11,705 23.31 0.0152
2024-08-13 2024-06-30 13F HUNTSMAN COM 447011107 416,909 84,273 25.33 9,493 9.63 0.0134
2024-05-07 2024-03-31 13F HUNTSMAN COM 447011107 332,636 1,096 0.33 8,658 3.93 0.0127
2024-02-14 2023-12-31 13F HUNTSMAN COM 447011107 331,540 31,351 10.44 8,332 13.75 0.0134
2023-11-14 2023-09-30 13F HUNTSMAN COM 447011107 300,189 429 0.14 7,324 -9.57 0.0132
2023-08-11 2023-06-30 13F HUNTSMAN COM 447011107 299,760 94,561 46.08 8,100 44.26 0.0141
2023-05-12 2023-03-31 13F HUNTSMAN COM 447011107 205,199 136,430 198.39 5,614 197.19 0.0104
2023-02-10 2022-12-31 13F HUNTSMAN COM 447011107 68,769 -28,744 -29.48 1,889 -21.09 0.0042
2022-11-14 2022-09-30 13F HUNTSMAN COM 447011107 97,513 -6,278 -6.05 2,394 -20.12 0.0053
2022-08-15 2022-06-30 13F HUNTSMAN COM 447011107 103,791 -24,039 -18.81 2,997 -38.33 0.0065
2022-05-13 2022-03-31 13F HUNTSMAN COM 447011107 127,830 29,009 29.36 4,860 37.79 0.0098
2022-02-14 2021-12-31 13F HUNTSMAN COM 447011107 98,821 34,647 53.99 3,527 79.31 0.0066
2021-11-12 2021-09-30 13F HUNTSMAN COM 447011107 64,174 565 0.89 1,967 11.89 0.0041
2021-08-06 2021-06-30 13F HUNTSMAN COM 447011107 63,609 -88,288 -58.12 1,758 -59.00 0.0039
2021-05-12 2021-03-31 13F HUNTSMAN COM 447011107 151,897 21,817 16.77 4,288 28.65 0.0108
2021-02-08 2020-12-31 13F HUNTSMAN COM 447011107 130,080 -23,682 -15.40 3,333 -3.81 0.0086
2020-12-04 2020-09-30 13F/A-1 HUNTSMAN COM 447011107 153,762 -31,518 -17.01 3,465 2.76 0.0100
2020-11-06 2020-09-30 13F HUNTSMAN COM 447011107 174,059 -11,221 3,916 9,428.8573
2020-08-17 2020-06-30 13F/A-1 HUNTSMAN COM 447011107 185,280 5,009 2.78 3,372 30.50 0.0105
2020-08-11 2020-06-30 13F HUNTSMAN COM 447011107 171,087 -9,184 3,728 10,112.3984
2020-05-14 2020-03-31 13F HUNTSMAN COM 447011107 180,271 40,061 28.57 2,584 -25.55 0.0095
2020-02-06 2019-12-31 13F HUNTSMAN COM 447011107 140,210 82,441 142.71 3,471 145.47 0.0104
2019-11-12 2019-09-30 13F HUNTSMAN COM 447011107 57,769 -127,013 -68.74 1,414 -62.95 0.0036
2019-08-14 2019-06-30 13F HUNTSMAN COM 447011107 184,782 -7,562 -3.93 3,816 -12.96 0.0125
2019-05-15 2019-03-31 13F HUNTSMAN COM 447011107 192,344 -186,024 -49.16 4,384 -54.92 0.0147
2019-02-13 2018-12-31 13F HUNTSMAN COM 447011107 378,368 36,706 10.74 9,726 4.37 0.0346
2018-11-08 2018-09-30 13F HUNTSMAN COM 447011107 341,662 -111,520 -24.61 9,319 -29.58 0.0338
2018-08-03 2018-06-30 13F HUNTSMAN COM 447011107 453,182 57,166 14.44 13,234 14.24 0.0450
2018-05-11 2018-03-31 13F HUNTSMAN COM 447011107 396,016 88,625 28.83 11,584 13.20 0.0444
2018-02-08 2017-12-31 13F HUNTSMAN COM 447011107 307,391 230,175 298.09 10,233 383.37 0.0355
2017-11-06 2017-09-30 13F HUNTSMAN COM 447011107 77,216 -77,128 -49.97 2,117 -46.93 0.0075
2017-07-31 2017-06-30 13F HUNTSMAN COM 447011107 154,344 22,127 16.74 3,989 22.93 0.0159
2017-05-05 2017-03-31 13F HUNTSMAN COM 447011107 132,217 2,617 2.02 3,245 31.22 0.0142
2017-02-02 2016-12-31 13F HUNTSMAN COM 447011107 129,600 -16,248 -11.14 2,473 4.21 0.0120
2016-11-04 2016-09-30 13F HUNTSMAN COM 447011107 145,848 -73,348 -33.46 2,373 -19.50 0.0121
2016-08-11 2016-06-30 13F HUNTSMAN COM 447011107 219,196 58,918 36.76 2,948 38.27 0.0177
2016-05-10 2016-03-31 13F/A-1 HUNTSMAN COM 447011107 160,278 4,223 2.71 2,132 20.11 0.0133
2016-02-03 2015-12-31 13F HUNTSMAN COM 447011107 156,055 150,921 2,939.64 1,775 3,450.00 0.0108
2015-11-02 2015-09-30 13F/A-1 HUNTSMAN COM 447011107 5,134 -1,653 -24.36 50 -66.67 0.0005
2015-10-30 2015-09-30 13F HUNTSMAN COM 447011107 5,134 50
2015-08-07 2015-06-30 13F/A-1 HUNTSMAN COM 447011107 6,787 433 6.81 150 7.14 0.0014
2015-08-04 2015-06-30 13F HUNTSMAN COM 447011107 6,787 433 150 0.0014
2015-05-14 2015-03-31 13F/A-1 HUNTSMAN COM 447011107 6,354 470 7.99 140 6.06 0.0012
2015-05-01 2015-03-31 13F HOWARD HUGHES PUT 447011107 6,354 6,354 140 0.0012
2015-02-10 2014-12-31 13F HUNTSMAN COM 447011107 5,884 5,884 132 0.0012
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
(%)
2015-05-01 2015-03-31 13F HOWARD HUGHES PUT 6,354 140 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.