CuriosityStream Inc.
US ˙ NasdaqCM ˙ US23130Q1076

SecurityCURI / CuriosityStream Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership56,782 shares
Latest Disclosed Value $ 168,075
Citadel Advisors Llc ownership in CURI / CuriosityStream Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 56,782 shares of CuriosityStream Inc. (US:CURI) valued at $168,075 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 143,129 shares of CuriosityStream Inc.. This represents a change in shares of -60.33% during the quarter. The current value of the position is $157,570 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (CURI) in the form of stock options. The firm currently holds call options representing 19,600 of underlying shares valued at $58,016 USD and put options representing 36,600 of underlying shares valued at $108,336 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.

CURI / CuriosityStream 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 CURIOSITYSTREAM COM CL A 23130Q107 56,782 -86,347 -60.33 168 -69.06 0.0000
2026-02-17 2025-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 143,129 -392,252 -73.27 544 -80.86 0.0001
2025-11-14 2025-09-30 13F CURIOSITYSTREAM COM CL A 23130Q107 535,381 274,218 105.00 2,838 92.99 0.0004
2025-08-14 2025-06-30 13F CURIOSITYSTREAM COM CL A 23130Q107 261,163 128,578 96.98 1,470 314.08 0.0003
2025-05-15 2025-03-31 13F CURIOSITYSTREAM COM CL A 23130Q107 132,585 71,445 116.85 355 281.72 0.0001
2025-02-14 2024-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 61,140 -27,256 -30.83 94 -44.64 0.0000
2024-11-14 2024-09-30 13F CURIOSITYSTREAM COM CL A 23130Q107 88,396 88,396 169 0.0000
2024-05-15 2024-03-31 13F CURIOSITYSTREAM COM CL A 23130Q107 0 -46,444 -100.00 0 -100.00
2024-02-14 2023-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 46,444 -44,399 -48.87 25 -60.94 0.0000
2023-11-14 2023-09-30 13F CURIOSITYSTREAM COM CL A 23130Q107 90,843 84,265 1,281.01 64 966.67 0.0000
2023-08-14 2023-06-30 13F CURIOSITYSTREAM COM CL A 23130Q107 6,578 -54,740 -89.27 6 -92.68 0.0000
2023-05-15 2023-03-31 13F CURIOSITYSTREAM COM CL A 23130Q107 61,318 61,270 127,645.83 83 0.0000
2023-02-14 2022-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 48 48 0 0.0000
2022-11-14 2022-09-30 13F CURIOSITYSTREAM COM CL A 23130Q107 0 -117,183 -100.00 0 -100.00
2022-08-15 2022-06-30 13F CURIOSITYSTREAM COM CL A 23130Q107 117,183 -8,153 -6.50 198 -45.45 0.0001
2022-05-16 2022-03-31 13F CURIOSITYSTREAM COM CL A 23130Q107 125,336 95,574 321.13 363 106.25 0.0001
2022-02-14 2021-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 29,762 29,762 176 0.0000
2022-03-11 2021-09-30 13F/A-1 CURIOSITYSTREAM COM CL A 23130Q107 0 -196,656 -100.00 0 -100.00
2021-11-15 2021-09-30 13F CURIOSITYSTREAM COM CL A 23130Q107 0 -196,656 0
2021-08-16 2021-06-30 13F CURIOSITYSTREAM COM CL A 23130Q107 196,656 -12,612 -6.03 2,682 -5.43 0.0006
2021-05-21 2021-03-31 13F/A-1 CURIOSITYSTREAM COM CL A 23130Q107 209,268 188,140 890.48 2,836 861.36 0.0007
2021-05-17 2021-03-31 13F CURIOSITYSTREAM COM CL A 23130Q107 209,268 188,140 2,836 0.0007
2021-02-16 2020-12-31 13F CURIOSITYSTREAM COM CL A 23130Q107 21,128 21,128 295 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 CURIOSITYSTREAM COM CL A Call 19,600 -50.38 58 -61.33 n/a n/a n/a
2026-02-17 2025-12-31 13F CURIOSITYSTREAM COM CL A Call 39,500 -14.69 150 -38.78 n/a n/a n/a
2025-11-14 2025-09-30 13F CURIOSITYSTREAM COM CL A Call 46,300 -30.69 245 -34.84 n/a n/a n/a
2025-08-14 2025-06-30 13F CURIOSITYSTREAM COM CL A Call 66,800 79.57 376 279.80 n/a n/a n/a
2025-05-15 2025-03-31 13F CURIOSITYSTREAM COM CL A Call 37,200 254.29 100 518.75 n/a n/a n/a
2025-02-14 2024-12-31 13F CURIOSITYSTREAM COM CL A Call 10,500 8.25 16 -11.11 n/a n/a n/a
2024-11-14 2024-09-30 13F CURIOSITYSTREAM COM CL A Call 9,700 19 n/a n/a n/a
2024-05-15 2024-03-31 13F CURIOSITYSTREAM COM CL A Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F CURIOSITYSTREAM COM CL A Call 173,800 0.00 94 -24.39 n/a n/a n/a
2023-11-14 2023-09-30 13F CURIOSITYSTREAM COM CL A Call 173,800 0.00 123 -24.07 n/a n/a n/a
2023-08-14 2023-06-30 13F CURIOSITYSTREAM COM CL A Call 173,800 -6.46 162 -35.20 n/a n/a n/a
2023-05-15 2023-03-31 13F CURIOSITYSTREAM COM CL A Call 185,800 -26.71 251 -13.19 n/a n/a n/a
2023-02-14 2022-12-31 13F CURIOSITYSTREAM COM CL A Call 253,500 12.57 289 -12.46 n/a n/a n/a
2022-11-14 2022-09-30 13F CURIOSITYSTREAM COM CL A Call 225,200 -0.09 329 -13.65 n/a n/a n/a
2022-08-15 2022-06-30 13F CURIOSITYSTREAM COM CL A Call 225,400 14.71 381 -33.16 n/a n/a n/a
2022-05-16 2022-03-31 13F CURIOSITYSTREAM COM CL A Call 196,500 -26.79 570 -64.20 n/a n/a n/a
2022-02-14 2021-12-31 13F CURIOSITYSTREAM COM CL A Call 268,400 24.49 1,592 -29.93 n/a n/a n/a
2021-11-15 2021-09-30 13F CURIOSITYSTREAM Cmn Call 215,600 155.15 2,272 97.05 n/a n/a n/a
2021-08-16 2021-06-30 13F CURIOSITYSTREAM COM CL A Call 84,500 -23.46 1,153 -22.93 n/a n/a n/a
2021-05-21 2021-03-31 13F/A CURIOSITYSTREAM COM CL A Call 110,400 1,496 n/a n/a n/a
2021-05-17 2021-03-31 13F CURIOSITYSTREAM COM CL A Call 110,400 1,496 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 CURIOSITYSTREAM COM CL A Put 36,600 -7.81 108 -28.00 n/a n/a n/a
2026-02-17 2025-12-31 13F CURIOSITYSTREAM COM CL A Put 39,700 -32.60 151 -51.92 n/a n/a n/a
2025-11-14 2025-09-30 13F CURIOSITYSTREAM COM CL A Put 58,900 -22.80 312 -27.27 n/a n/a n/a
2025-08-14 2025-06-30 13F CURIOSITYSTREAM COM CL A Put 76,300 18,975.00 430 42,800.00 n/a n/a n/a
2025-05-15 2025-03-31 13F CURIOSITYSTREAM COM CL A Put 400 -93.65 1 -88.89 n/a n/a n/a
2025-02-14 2024-12-31 13F CURIOSITYSTREAM COM CL A Put 6,300 472.73 10 350.00 n/a n/a n/a
2024-11-14 2024-09-30 13F CURIOSITYSTREAM COM CL A Put 1,100 2 n/a n/a n/a
2024-05-15 2024-03-31 13F CURIOSITYSTREAM COM CL A Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F CURIOSITYSTREAM COM CL A Put 8,000 -6.98 4 -33.33 n/a n/a n/a
2023-11-14 2023-09-30 13F CURIOSITYSTREAM COM CL A Put 8,600 -1.15 6 -25.00 n/a n/a n/a
2023-08-14 2023-06-30 13F CURIOSITYSTREAM COM CL A Put 8,700 -15.53 8 -38.46 n/a n/a n/a
2023-05-15 2023-03-31 13F CURIOSITYSTREAM COM CL A Put 10,300 -46.07 14 -38.10 n/a n/a n/a
2023-02-14 2022-12-31 13F CURIOSITYSTREAM COM CL A Put 19,100 0.53 22 -25.00 n/a n/a n/a
2022-11-14 2022-09-30 13F CURIOSITYSTREAM COM CL A Put 19,000 -21.49 28 -31.71 n/a n/a n/a
2022-08-15 2022-06-30 13F CURIOSITYSTREAM COM CL A Put 24,200 -18.79 41 -52.33 n/a n/a n/a
2022-05-16 2022-03-31 13F CURIOSITYSTREAM COM CL A Put 29,800 -57.12 86 -79.13 n/a n/a n/a
2022-02-14 2021-12-31 13F CURIOSITYSTREAM COM CL A Put 69,500 -57.98 412 -76.36 n/a n/a n/a
2021-11-15 2021-09-30 13F CURIOSITYSTREAM Cmn Put 165,400 -53.89 1,743 -64.38 n/a n/a n/a
2021-08-16 2021-06-30 13F CURIOSITYSTREAM COM CL A Put 358,700 8.40 4,893 9.12 n/a n/a n/a
2021-05-21 2021-03-31 13F/A CURIOSITYSTREAM COM CL A Put 330,900 4,484 n/a n/a n/a
2021-05-17 2021-03-31 13F CURIOSITYSTREAM COM CL A Put 330,900 4,484 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.