Warner Bros. Discovery, Inc.
US ˙ NasdaqGS ˙ US9344231041

SecurityWBD / Warner Bros. Discovery, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership29,380,710 shares
Latest Disclosed Value $ 806,794,297
Citadel Advisors Llc ownership in WBD / Warner Bros. Discovery, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 29,380,710 shares of Warner Bros. Discovery, Inc. (US:WBD) valued at $806,794,297 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 11,778,999 shares of Warner Bros. Discovery, Inc.. This represents a change in shares of 149.43% during the quarter. The current value of the position is $793,279,170 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (WBD) in the form of stock options. The firm currently holds call options representing 4,751,300 of underlying shares valued at $130,470,698 USD and put options representing 3,870,100 of underlying shares valued at $106,272,946 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.

WBD / Warner Bros. Discovery, 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 WARNER BROS DISCOVERY COM SER A 934423104 29,380,710 17,601,711 149.43 806,794 137.66 0.1148
2026-02-17 2025-12-31 13F WARNER BROS DISCOVERY COM SER A 934423104 11,778,999 5,387,851 84.30 339,471 171.97 0.0510
2025-11-14 2025-09-30 13F WARNER BROS DISCOVERY COM SER A 934423104 6,391,148 -9,572,539 -59.96 124,819 -31.77 0.0190
2025-08-14 2025-06-30 13F WARNER BROS DISCOVERY COM SER A 934423104 15,963,687 14,241,715 827.06 182,944 890.17 0.0318
2025-05-15 2025-03-31 13F WARNER BROS DISCOVERY COM SER A 934423104 1,721,972 -9,070,096 -84.04 18,477 -83.80 0.0035
2025-02-14 2024-12-31 13F WARNER BROS DISCOVERY COM SER A 934423104 10,792,068 4,247,424 64.90 114,072 111.27 0.0197
2024-11-14 2024-09-30 13F WARNER BROS DISCOVERY COM SER A 934423104 6,544,644 6,544,644 53,993 0.0104
2024-08-14 2024-06-30 13F WARNER BROS DISCOVERY COM SER A 934423104 0 -1,134,567 -100.00 0 -100.00
2024-05-15 2024-03-31 13F WARNER BROS DISCOVERY COM SER A 934423104 1,134,567 -516,129 -31.27 9,905 -47.27 0.0019
2024-02-14 2023-12-31 13F WARNER BROS DISCOVERY COM SER A 934423104 1,650,696 -13,889,544 -89.38 18,785 -88.87 0.0038
2023-11-14 2023-09-30 13F WARNER BROS DISCOVERY COM SER A 934423104 15,540,240 12,610,179 430.37 168,767 359.33 0.0362
2023-08-14 2023-06-30 13F WARNER BROS DISCOVERY COM SER A 934423104 2,930,061 -8,912,940 -75.26 36,743 -79.45 0.0076
2023-05-15 2023-03-31 13F WARNER BROS DISCOVERY COM SER A 934423104 11,843,001 2,200,860 22.83 178,829 95.64 0.0393
2023-02-14 2022-12-31 13F WARNER BROS DISCOVERY COM SER A 934423104 9,642,141 9,425,224 4,345.08 91,407 3,565.08 0.0214
2022-11-14 2022-09-30 13F WARNER BROS DISCOVERY COM SER A 934423104 216,917 -600,248 -73.45 2,494 -77.26 0.0006
2022-08-15 2022-06-30 13F WARNER BROS DISCOVERY COM SER A 934423104 817,165 817,165 10,966 0.0028
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 WARNER BROS DISCOVERY COM SER A Call 4,751,300 -56.25 130,471 -58.31 n/a n/a n/a
2026-02-17 2025-12-31 13F WARNER BROS DISCOVERY COM SER A Call 10,859,600 162.93 312,974 288.00 n/a n/a n/a
2025-11-14 2025-09-30 13F WARNER BROS DISCOVERY COM SER A Call 4,130,300 110.94 80,665 259.50 n/a n/a n/a
2025-08-14 2025-06-30 13F WARNER BROS DISCOVERY COM SER A Call 1,958,000 -27.52 22,439 -22.60 n/a n/a n/a
2025-05-15 2025-03-31 13F WARNER BROS DISCOVERY COM SER A Call 2,701,600 23.52 28,988 25.39 n/a n/a n/a
2025-02-14 2024-12-31 13F WARNER BROS DISCOVERY COM SER A Call 2,187,200 -56.61 23,119 -44.41 n/a n/a n/a
2024-11-14 2024-09-30 13F WARNER BROS DISCOVERY COM SER A Call 5,040,800 91.97 41,587 112.88 n/a n/a n/a
2024-08-14 2024-06-30 13F WARNER BROS DISCOVERY COM SER A Call 2,625,800 -3.05 19,536 -17.38 n/a n/a n/a
2024-05-15 2024-03-31 13F WARNER BROS DISCOVERY COM SER A Call 2,708,500 -42.44 23,645 -55.84 n/a n/a n/a
2024-02-14 2023-12-31 13F WARNER BROS DISCOVERY COM SER A Call 4,705,464 -12.44 53,548 -8.25 n/a n/a n/a
2023-11-14 2023-09-30 13F WARNER BROS DISCOVERY COM SER A Call 5,374,224 -30.89 58,364 -40.15 n/a n/a n/a
2023-08-14 2023-06-30 13F WARNER BROS DISCOVERY COM SER A Call 7,776,804 -0.11 97,521 -17.04 n/a n/a n/a
2023-05-15 2023-03-31 13F WARNER BROS DISCOVERY COM SER A Call 7,785,200 29.10 117,557 105.64 n/a n/a n/a
2023-02-14 2022-12-31 13F WARNER BROS DISCOVERY COM SER A Call 6,030,272 15.19 57,167 -5.05 n/a n/a n/a
2022-11-14 2022-09-30 13F WARNER BROS DISCOVERY COM SER A Call 5,235,208 13.78 60,205 -2.49 n/a n/a n/a
2022-08-15 2022-06-30 13F WARNER BROS DISCOVERY COM SER A Call 4,600,988 61,745 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 WARNER BROS DISCOVERY COM SER A Put 3,870,100 -10.93 106,273 -15.14 n/a n/a n/a
2026-02-17 2025-12-31 13F WARNER BROS DISCOVERY COM SER A Put 4,345,100 51.11 125,226 122.99 n/a n/a n/a
2025-11-14 2025-09-30 13F WARNER BROS DISCOVERY COM SER A Put 2,875,500 40.28 56,159 139.06 n/a n/a n/a
2025-08-14 2025-06-30 13F WARNER BROS DISCOVERY COM SER A Put 2,049,900 -14.87 23,492 -9.08 n/a n/a n/a
2025-05-15 2025-03-31 13F WARNER BROS DISCOVERY COM SER A Put 2,408,100 -29.15 25,839 -28.08 n/a n/a n/a
2025-02-14 2024-12-31 13F WARNER BROS DISCOVERY COM SER A Put 3,399,100 -0.52 35,928 27.45 n/a n/a n/a
2024-11-14 2024-09-30 13F WARNER BROS DISCOVERY COM SER A Put 3,416,900 42.93 28,189 58.49 n/a n/a n/a
2024-08-14 2024-06-30 13F WARNER BROS DISCOVERY COM SER A Put 2,390,600 -46.72 17,786 -54.59 n/a n/a n/a
2024-05-15 2024-03-31 13F WARNER BROS DISCOVERY COM SER A Put 4,486,800 36.82 39,170 4.95 n/a n/a n/a
2024-02-14 2023-12-31 13F WARNER BROS DISCOVERY COM SER A Put 3,279,440 -81.77 37,320 -80.90 n/a n/a n/a
2023-11-14 2023-09-30 13F WARNER BROS DISCOVERY COM SER A Put 17,989,556 340.49 195,367 281.48 n/a n/a n/a
2023-08-14 2023-06-30 13F WARNER BROS DISCOVERY COM SER A Put 4,083,988 -9.40 51,213 -24.76 n/a n/a n/a
2023-05-15 2023-03-31 13F WARNER BROS DISCOVERY COM SER A Put 4,507,736 -55.22 68,067 -28.68 n/a n/a n/a
2023-02-14 2022-12-31 13F WARNER BROS DISCOVERY COM SER A Put 10,067,156 119.26 95,437 80.74 n/a n/a n/a
2022-11-14 2022-09-30 13F WARNER BROS DISCOVERY COM SER A Put 4,591,512 4.21 52,802 -10.70 n/a n/a n/a
2022-08-15 2022-06-30 13F WARNER BROS DISCOVERY COM SER A Put 4,405,888 59,127 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.