Arrowhead Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US04280A1007

SecurityARWR / Arrowhead Pharmaceuticals, Inc.
InstitutionWolverine Trading, Llc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Wolverine Trading, Llc ownership in ARWR / Arrowhead Pharmaceuticals, Inc.

On November 14, 2025 - Wolverine Trading, Llc filed a 13F-HR form disclosing ownership of 0 shares of Arrowhead Pharmaceuticals, Inc. (US:ARWR) valued at $0 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 18, 2025 disclosing 14,240 shares of Arrowhead Pharmaceuticals, 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 (ARWR) in the form of stock options. The firm currently holds call options representing 38,600 of underlying shares valued at $1,303,908 USD and put options representing 10,300 of underlying shares valued at $347,934 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.

ARWR / Arrowhead Pharmaceuticals, 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 ARROWHEAD PHARMACEUTICALS IN COM 04280A100 0 -14,240 -100.00 0 -100.00
2025-08-18 2025-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 14,240 -1,755 -10.97 229 3.17 0.0002
2025-05-15 2025-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 15,995 5,613 54.06 221 14.51 0.0003
2025-02-14 2024-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 10,382 10,382 193 0.0002
2024-08-14 2024-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 0 -9,441 -100.00 0 -100.00
2024-05-15 2024-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 9,441 -22,119 -70.09 270 -72.02 0.0003
2024-02-14 2023-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 31,560 31,560 966 0.0010
2022-08-15 2022-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 0 -5,769 -100.00 0 -100.00
2022-05-16 2022-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 5,769 5,769 263 0.0003
2020-08-13 2020-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 0 -15,246 -100.00 0 -100.00
2020-05-11 2020-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 15,246 5,219 52.05 442 -31.37 0.0013
2020-02-12 2019-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 10,027 2,409 31.62 644 214.15 0.0016
2019-11-14 2019-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 7,618 -30,754 -80.15 205 -79.84 0.0006
2019-08-20 2019-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 38,372 19,428 102.55 1,017 192.24 0.0029
2019-05-15 2019-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 18,944 -11,013 -36.76 348 -2.79 0.0010
2019-02-13 2018-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 29,957 29,957 358 0.0010
2018-02-14 2017-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 0 -38,611 -100.00 0 -100.00
2017-11-15 2017-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 38,611 8,058 26.37 167 247.92 0.0006
2017-08-14 2017-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 30,553 5,584 22.36 48 2.13 0.0002
2017-05-15 2017-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 24,969 19,902 392.78 47 74.07 0.0003
2016-08-15 2016-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM 04280A100 5,067 5,067 27 0.0002
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 ARROWHEAD PHARMACEUTICALS IN COM Call 38,600 267.62 1,304 675.60 n/a n/a n/a
2025-08-18 2025-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 10,500 -33.12 169 -22.22 n/a n/a n/a
2025-05-15 2025-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 15,700 -30.53 217 -48.57 n/a n/a n/a
2025-02-14 2024-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 22,600 421 n/a n/a n/a
2024-11-14 2024-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-08-14 2024-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 7,700 -52.47 200 -56.80 n/a n/a n/a
2024-05-15 2024-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 16,200 -48.41 463 -51.77 n/a n/a n/a
2024-02-14 2023-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 31,400 297.47 961 352.83 n/a n/a n/a
2023-11-15 2023-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 7,900 -26.85 212 -45.36 n/a n/a n/a
2023-08-23 2023-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 10,800 -24.48 388 n/a n/a n/a
2023-05-15 2023-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 14,300 -53.57 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 30,800 40.64 1,249 71.33 n/a n/a n/a
2022-11-14 2022-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 21,900 11.17 729 7.05 n/a n/a n/a
2022-08-15 2022-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 19,700 -21.51 681 -40.47 n/a n/a n/a
2022-05-16 2022-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 25,100 -63.03 1,144 -74.98 n/a n/a n/a
2022-02-14 2021-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 67,900 4,573 n/a n/a n/a
2020-08-13 2020-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 111,200 -40.57 3,221 -73.19 n/a n/a n/a
2020-02-12 2019-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 187,100 11.04 12,012 164.41 n/a n/a n/a
2019-11-14 2019-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 168,500 -1.92 4,543 -0.22 n/a n/a n/a
2019-08-20 2019-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 171,800 153.39 4,553 266.00 n/a n/a n/a
2019-05-15 2019-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 67,800 14.53 1,244 75.95 n/a n/a n/a
2019-02-13 2018-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 59,200 -51.48 707 -69.77 n/a n/a n/a
2018-11-14 2018-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 122,000 135.07 2,339 525.40 n/a n/a n/a
2018-08-13 2018-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 51,900 0.00 374 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 51,900 89.42 374 270.30 n/a n/a n/a
2018-02-14 2017-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 27,400 -51.93 101 -59.11 n/a n/a n/a
2017-11-15 2017-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 57,000 319.12 247 1,076.19 n/a n/a n/a
2017-08-14 2017-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 13,600 -49.44 21 -58.82 n/a n/a n/a
2017-05-15 2017-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Call 26,900 -59.06 51 -89.37 n/a n/a n/a
2016-11-14 2016-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 65,700 -2.23 480 31.87 n/a n/a n/a
2016-08-17 2016-06-30 13F/A ARROWHEAD PHARMACEUTICALS IN COM Call 67,200 364 n/a n/a n/a
2016-08-15 2016-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Call 672 364 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 ARROWHEAD PHARMACEUTICALS IN COM Put 10,300 -84.76 348 -68.08 n/a n/a n/a
2025-08-18 2025-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 67,600 307.23 1,087 374.67 n/a n/a n/a
2025-05-15 2025-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 16,600 -4.60 229 -29.10 n/a n/a n/a
2025-02-14 2024-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 17,400 65.71 324 56.80 n/a n/a n/a
2024-11-14 2024-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 10,500 -38.60 207 -53.60 n/a n/a n/a
2024-08-14 2024-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 17,100 69.31 444 54.17 n/a n/a n/a
2024-05-15 2024-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 10,100 -19.20 289 -24.61 n/a n/a n/a
2024-02-14 2023-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 12,500 382 n/a n/a n/a
2023-11-15 2023-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-23 2023-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 9,700 349 n/a n/a n/a
2023-05-15 2023-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 8,600 349 n/a n/a n/a
2022-05-16 2022-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 12,500 842 n/a n/a n/a
2020-08-13 2020-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-11 2020-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 73,000 -34.29 2,115 -70.35 n/a n/a n/a
2020-02-12 2019-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 111,100 7.45 7,133 155.85 n/a n/a n/a
2019-11-14 2019-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 103,400 -2.18 2,788 -0.46 n/a n/a n/a
2019-08-20 2019-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 105,700 209.97 2,801 347.44 n/a n/a n/a
2019-05-15 2019-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 34,100 -48.10 626 -20.15 n/a n/a n/a
2019-02-13 2018-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 65,700 -43.75 784 -64.98 n/a n/a n/a
2018-11-14 2018-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 116,800 274.36 2,239 895.11 n/a n/a n/a
2018-08-13 2018-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 31,200 0.00 225 0.00 n/a n/a n/a
2018-05-15 2018-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 31,200 59.18 225 212.50 n/a n/a n/a
2018-02-14 2017-12-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 19,600 -59.17 72 -65.38 n/a n/a n/a
2017-11-15 2017-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 48,000 81.82 208 395.24 n/a n/a n/a
2017-08-14 2017-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 26,400 -26.05 42 -37.31 n/a n/a n/a
2017-05-15 2017-03-31 13F ARROWHEAD PHARMACEUTICALS IN COM Put 35,700 -39.29 67 -84.38 n/a n/a n/a
2016-11-14 2016-09-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 58,800 4.81 429 41.12 n/a n/a n/a
2016-08-17 2016-06-30 13F/A ARROWHEAD PHARMACEUTICALS IN COM Put 56,100 304 n/a n/a n/a
2016-08-15 2016-06-30 13F ARROWHEAD PHARMACEUTICALS IN COM Put 561 304 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.