Aurora Cannabis Inc.
US ˙ NasdaqCM ˙ CA05156X8843

SecurityACB / Aurora Cannabis Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership252,312 shares
Latest Disclosed Value $ 825,060
Citadel Advisors Llc ownership in ACB / Aurora Cannabis Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 252,312 shares of Aurora Cannabis Inc. (US:ACB) valued at $825,060 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 249,173 shares of Aurora Cannabis Inc.. This represents a change in shares of 1.26% during the quarter. The current value of the position is $852,815 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (ACB) in the form of stock options. The firm currently holds call options representing 224,100 of underlying shares valued at $732,807 USD and put options representing 132,600 of underlying shares valued at $433,602 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.

ACB / Aurora Cannabis 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)
2026-05-15 2026-03-31 13F AURORA CANNABIS COM 05156X850 252,312 3,139 1.26 825 -21.50 0.0001
2026-02-17 2025-12-31 13F AURORA CANNABIS COM 05156X850 249,173 -228,368 -47.82 1,052 -63.07 0.0001
2025-11-14 2025-09-30 13F AURORA CANNABIS COM 05156X850 477,541 255,996 115.55 2,846 203.09 0.0004
2025-08-14 2025-06-30 13F AURORA CANNABIS COM 05156X850 221,545 -56,352 -20.28 939 -22.97 0.0002
2025-05-15 2025-03-31 13F AURORA CANNABIS COM 05156X850 277,897 213,767 333.33 1,220 348.16 0.0002
2025-02-14 2024-12-31 13F AURORA CANNABIS COM 05156X850 64,130 63,431 9,074.54 273 6,700.00 0.0000
2024-11-14 2024-09-30 13F AURORA CANNABIS COM 05156X850 699 -46,664 -98.52 4 -98.17 0.0000
2024-08-14 2024-06-30 13F AURORA CANNABIS COM 05156X850 47,363 32,547 219.67 219 235.38 0.0000
2024-05-15 2024-03-31 13F AURORA CANNABIS COM 05156X850 14,816 14,816 65 0.0000
2020-08-14 2020-06-30 13F AURORA CANNABIS Cmn 05156X108 0 -5,377,565 -100.00 0 -100.00
2020-05-15 2020-03-31 13F AURORA CANNABIS Cmn 05156X108 5,377,565 2,211,156 69.83 4,872 -28.57 0.0022
2020-02-14 2019-12-31 13F AURORA CANNABIS Cmn 05156X108 3,166,409 2,858,133 927.13 6,821 404.14 0.0030
2019-11-14 2019-09-30 13F AURORA CANNABIS Cmn 05156X108 308,276 -371,879 -54.68 1,353 -74.57 0.0006
2019-08-14 2019-06-30 13F AURORA CANNABIS Cmn 05156X108 680,155 -554,207 -44.90 5,321 -52.41 0.0024
2019-05-15 2019-03-31 13F AURORA CANNABIS Cmn 05156X108 1,234,362 1,203,455 3,893.79 11,182 7,208.50 0.0056
2019-02-14 2018-12-31 13F AURORA CANNABIS Cmn 05156X108 30,907 30,907 153 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
(%)
2026-05-15 2026-03-31 13F AURORA CANNABIS COM Call 224,100 -61.41 733 -70.12 n/a n/a n/a
2026-02-17 2025-12-31 13F AURORA CANNABIS COM Call 580,770 -7.08 2,451 -34.23 n/a n/a n/a
2025-11-14 2025-09-30 13F AURORA CANNABIS COM Call 625,050 168.53 3,725 277.79 n/a n/a n/a
2025-08-14 2025-06-30 13F AURORA CANNABIS COM Call 232,770 -13.78 987 -16.79 n/a n/a n/a
2025-05-15 2025-03-31 13F AURORA CANNABIS COM Call 269,970 5.49 1,185 9.02 n/a n/a n/a
2025-02-14 2024-12-31 13F AURORA CANNABIS COM Call 255,910 9.57 1,088 -20.83 n/a n/a n/a
2024-11-14 2024-09-30 13F AURORA CANNABIS COM Call 233,560 -19.17 1,373 2.92 n/a n/a n/a
2024-08-14 2024-06-30 13F AURORA CANNABIS COM Call 288,950 85.88 1,335 95.60 n/a n/a n/a
2024-05-15 2024-03-31 13F AURORA CANNABIS COM Call 155,450 682 n/a n/a n/a
2020-08-14 2020-06-30 13F AURORA CANNABIS Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F AURORA CANNABIS Cmn Call 1,101,300 -29.09 998 -70.24 n/a n/a n/a
2020-02-14 2019-12-31 13F AURORA CANNABIS Cmn Call 1,553,000 -22.43 3,354 -61.84 n/a n/a n/a
2019-11-14 2019-09-30 13F AURORA CANNABIS Cmn Call 2,002,000 15.76 8,789 -35.01 n/a n/a n/a
2019-08-14 2019-06-30 13F AURORA CANNABIS Cmn Call 1,729,400 25.66 13,524 8.47 n/a n/a n/a
2019-05-15 2019-03-31 13F AURORA CANNABIS Cmn Call 1,376,200 424.27 12,468 857.60 n/a n/a n/a
2019-02-14 2018-12-31 13F AURORA CANNABIS Cmn Call 262,500 1,302 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
(%)
2026-05-15 2026-03-31 13F AURORA CANNABIS COM Put 132,600 -80.81 434 -85.15 n/a n/a n/a
2026-02-17 2025-12-31 13F AURORA CANNABIS COM Put 690,970 90.56 2,916 34.89 n/a n/a n/a
2025-11-14 2025-09-30 13F AURORA CANNABIS COM Put 362,600 64.83 2,161 131.87 n/a n/a n/a
2025-08-14 2025-06-30 13F AURORA CANNABIS COM Put 219,980 -31.44 933 -33.81 n/a n/a n/a
2025-05-15 2025-03-31 13F AURORA CANNABIS COM Put 320,880 87.10 1,409 93.41 n/a n/a n/a
2025-02-14 2024-12-31 13F AURORA CANNABIS COM Put 171,500 9.72 729 -20.78 n/a n/a n/a
2024-11-14 2024-09-30 13F AURORA CANNABIS COM Put 156,300 -21.64 919 -0.22 n/a n/a n/a
2024-08-14 2024-06-30 13F AURORA CANNABIS COM Put 199,470 -17.69 922 -13.36 n/a n/a n/a
2024-05-15 2024-03-31 13F AURORA CANNABIS COM Put 242,350 1,064 n/a n/a n/a
2020-08-14 2020-06-30 13F AURORA CANNABIS Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F AURORA CANNABIS Cmn Put 2,586,000 4.10 2,343 -56.34 n/a n/a n/a
2020-02-14 2019-12-31 13F AURORA CANNABIS Cmn Put 2,484,200 114.82 5,366 5.69 n/a n/a n/a
2019-11-14 2019-09-30 13F AURORA CANNABIS Cmn Put 1,156,400 76.44 5,077 -0.94 n/a n/a n/a
2019-08-14 2019-06-30 13F AURORA CANNABIS Cmn Put 655,400 -39.88 5,125 -48.11 n/a n/a n/a
2019-05-15 2019-03-31 13F AURORA CANNABIS Cmn Put 1,090,100 734.69 9,876 1,424.07 n/a n/a n/a
2019-02-14 2018-12-31 13F AURORA CANNABIS Cmn Put 130,600 648 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.