Imperial Petroleum Inc.
US ˙ NasdaqCM ˙ MHY3894J1872

SecurityIMPP / Imperial Petroleum Inc.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Wolverine Trading, Llc ownership in IMPP / Imperial Petroleum Inc.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of Imperial Petroleum Inc. (US:IMPP) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 26,066 shares of Imperial Petroleum Inc.. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

Wolverine Trading, Llc has a history of taking positions in derivatives of the underlying security (IMPP) in the form of stock options. The firm currently holds call options representing 56,100 of underlying shares valued at $265,914 USD and put options representing 30,000 of underlying shares valued at $142,200 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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.

IMPP / Imperial Petroleum Inc. 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)
2025-11-14 2025-09-30 13F IMPERIAL PETE COM NEW Y3894J187 0 -26,066 -100.00 0 -100.00
2025-08-18 2025-06-30 13F IMPERIAL PETE COM NEW Y3894J187 26,066 4,656 21.75 81 50.94 0.0001
2025-05-15 2025-03-31 13F IMPERIAL PETE COM NEW Y3894J187 21,410 -15,048 -41.27 53 -52.25 0.0001
2025-02-14 2024-12-31 13F IMPERIAL PETE COM NEW Y3894J187 36,458 3,390 10.25 112 -15.91 0.0001
2024-11-14 2024-09-30 13F IMPERIAL PETE COM NEW Y3894J187 33,068 18,267 123.42 132 131.58 0.0001
2024-08-14 2024-06-30 13F IMPERIAL PETE COM NEW Y3894J187 14,801 14,801 57 0.0001
2024-02-14 2023-12-31 13F IMPERIAL PETE COM NEW Y3894J187 0 -12,074 -100.00 0 -100.00
2023-11-15 2023-09-30 13F IMPERIAL PETE COM NEW Y3894J187 12,074 12,074 19 0.0000
2019-08-20 2019-06-30 13F ARRAY BIOPHARMA COM 04269X105 0 -20,484 -100.00 0 -100.00
2019-05-15 2019-03-31 13F ARRAY BIOPHARMA COM 04269X105 20,484 -8,126 -28.40 499 25.06 0.0014
2019-02-13 2018-12-31 13F ARRAY BIOPHARMA COM 04269X105 28,610 -18,318 -39.03 399 -44.04 0.0011
2018-11-14 2018-09-30 13F ARRAY BIOPHARMA COM 04269X105 46,928 46,928 713 0.0016
2018-05-15 2018-03-31 13F ARRAY BIOPHARMA COM 04269X105 0 -32,801 -100.00 0 -100.00
2018-02-14 2017-12-31 13F ARRAY BIOPHARMA COM 04269X105 32,801 -19,091 -36.79 420 -34.17 0.0015
2017-11-15 2017-09-30 13F ARRAY BIOPHARMA COM 04269X105 51,892 31,303 152.04 638 266.67 0.0024
2017-08-14 2017-06-30 13F ARRAY BIOPHARMA COM 04269X105 20,589 -595 -2.81 174 -9.37 0.0008
2017-05-15 2017-03-31 13F ARRAY BIOPHARMA COM 04269X105 21,184 4,988 30.80 192 90.10 0.0011
2016-11-14 2016-09-30 13F ARRAY BIOPHARMA COM 04269X105 16,196 8,773 118.19 101 304.00 0.0005
2016-08-15 2016-06-30 13F ARRAY BIOPHARMA COM 04269X105 7,423 7,423 26 0.0001
Disclosed Call 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
(%)
2025-11-14 2025-09-30 13F IMPERIAL PETE COM NEW Call 56,100 338.28 266 579.49 n/a n/a n/a
2025-08-18 2025-06-30 13F IMPERIAL PETE COM NEW Call 12,800 -30.43 40 -13.33 n/a n/a n/a
2025-05-15 2025-03-31 13F IMPERIAL PETE COM NEW Call 18,400 -18.58 46 -34.78 n/a n/a n/a
2025-02-14 2024-12-31 13F IMPERIAL PETE COM NEW Call 22,600 -3.00 69 -25.81 n/a n/a n/a
2024-11-14 2024-09-30 13F IMPERIAL PETE COM NEW Call 23,300 37.87 93 43.08 n/a n/a n/a
2024-08-14 2024-06-30 13F IMPERIAL PETE COM NEW Call 16,900 66 n/a n/a n/a
2024-05-15 2024-03-31 13F IMPERIAL PETE COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F IMPERIAL PETE COM NEW Call 38,200 238.05 101 488.24 n/a n/a n/a
2023-11-15 2023-09-30 13F IMPERIAL PETE COM NEW Call 11,300 18 n/a n/a n/a
2019-08-20 2019-06-30 13F ARRAY BIOPHARMA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F ARRAY BIOPHARMA COM Call 95,500 34.51 2,328 134.91 n/a n/a n/a
2019-02-13 2018-12-31 13F ARRAY BIOPHARMA COM Call 71,000 12.34 991 3.12 n/a n/a n/a
2018-11-14 2018-09-30 13F ARRAY BIOPHARMA COM Call 63,200 -29.39 961 -34.22 n/a n/a n/a
2018-08-13 2018-06-30 13F ARRAY BIOPHARMA COM Call 89,500 0.00 1,461 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ARRAY BIOPHARMA COM Call 89,500 -2.08 1,461 24.87 n/a n/a n/a
2018-02-14 2017-12-31 13F ARRAY BIOPHARMA COM Call 91,400 26.24 1,170 31.31 n/a n/a n/a
2017-11-15 2017-09-30 13F ARRAY BIOPHARMA COM Call 72,400 -19.11 891 17.86 n/a n/a n/a
2017-08-14 2017-06-30 13F ARRAY BIOPHARMA COM Call 89,500 -30.62 756 -35.44 n/a n/a n/a
2017-05-15 2017-03-31 13F ARRAY BIOPHARMA COM Call 129,000 21.70 1,171 77.16 n/a n/a n/a
2016-11-14 2016-09-30 13F ARRAY BIOPHARMA COM Call 106,000 44.41 661 158.20 n/a n/a n/a
2016-08-17 2016-06-30 13F/A ARRAY BIOPHARMA COM Call 73,400 256 n/a n/a n/a
2016-08-15 2016-06-30 13F ARRAY BIOPHARMA COM Call 734 256 n/a n/a n/a
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
(%)
2025-11-14 2025-09-30 13F IMPERIAL PETE COM NEW Put 30,000 7.53 142 65.12 n/a n/a n/a
2025-08-18 2025-06-30 13F IMPERIAL PETE COM NEW Put 27,900 28.57 86 62.26 n/a n/a n/a
2025-05-15 2025-03-31 13F IMPERIAL PETE COM NEW Put 21,700 2.36 54 -18.46 n/a n/a n/a
2025-02-14 2024-12-31 13F IMPERIAL PETE COM NEW Put 21,200 43.24 65 10.17 n/a n/a n/a
2024-11-14 2024-09-30 13F IMPERIAL PETE COM NEW Put 14,800 10.45 59 15.69 n/a n/a n/a
2024-08-14 2024-06-30 13F IMPERIAL PETE COM NEW Put 13,400 52 n/a n/a n/a
2024-05-15 2024-03-31 13F IMPERIAL PETE COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F IMPERIAL PETE COM NEW Put 19,400 51 n/a n/a n/a
2019-08-20 2019-06-30 13F ARRAY BIOPHARMA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F ARRAY BIOPHARMA COM Put 84,000 167.52 2,048 367.58 n/a n/a n/a
2019-02-13 2018-12-31 13F ARRAY BIOPHARMA COM Put 31,400 -29.28 438 -35.11 n/a n/a n/a
2018-11-14 2018-09-30 13F ARRAY BIOPHARMA COM Put 44,400 27.95 675 19.26 n/a n/a n/a
2018-08-13 2018-06-30 13F ARRAY BIOPHARMA COM Put 34,700 0.00 566 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ARRAY BIOPHARMA COM Put 34,700 -52.92 566 -39.98 n/a n/a n/a
2018-02-14 2017-12-31 13F ARRAY BIOPHARMA COM Put 73,700 -23.55 943 -20.49 n/a n/a n/a
2017-11-15 2017-09-30 13F ARRAY BIOPHARMA COM Put 96,400 -14.08 1,186 25.11 n/a n/a n/a
2017-08-14 2017-06-30 13F ARRAY BIOPHARMA COM Put 112,200 14.72 948 6.76 n/a n/a n/a
2017-05-15 2017-03-31 13F ARRAY BIOPHARMA COM Put 97,800 82.46 888 165.87 n/a n/a n/a
2016-11-14 2016-09-30 13F ARRAY BIOPHARMA COM Put 53,600 64.42 334 192.98 n/a n/a n/a
2016-08-17 2016-06-30 13F/A ARRAY BIOPHARMA COM Put 32,600 114 n/a n/a n/a
2016-08-15 2016-06-30 13F ARRAY BIOPHARMA COM Put 326 114 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.