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RIOT in the 13F filings

Riot Blockchain Inc · CUSIP 767292105

Sector · Other financial servicesTheme · Financial services· L3VLUP-defined
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q1 2024Q4 2023Q3 2023Q1 2023Q4 2022
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
28
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 3 listed it in both
Shares listed
61,583,312
combined, among listed positions
Reported value
$761m
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 16 buyers (opened or added shares) and 15 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -10,665,326.

Managers listing RIOT in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

28 of 28 holders

ActionFiling
Starboard Value LP15,544,576$192m4.20%Added+2,800,00015 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)15,014,625$186munder 0.1%Added+2,218,28815 May 2026 (the filing on sec.gov)
Jane Street Group LLC7,385,953$91munder 0.1%Added+2,420,06912 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.5,455,200$67munder 0.1%Held015 May 2026 (the filing on sec.gov)
Citadel Advisors LLC2,908,767$36munder 0.1%Added+1,290,78815 May 2026 (the filing on sec.gov)
MFS Investment Management2,724,895$34munder 0.1%Added+439,91214 May 2026 (the filing on sec.gov)
Invesco Ltd2,707,365$33munder 0.1%Trimmed-74,07612 May 2026 (the filing on sec.gov)
Moore Capital Management LP2,006,343$25m0.50%Newnew15 May 2026 (the filing on sec.gov)
Wellington Management Group LLP1,618,318$20munder 0.1%Added+262,07915 May 2026 (the filing on sec.gov)
Millennium Management LLC1,238,906$15munder 0.1%Added+624,98015 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP783,330$9.7munder 0.1%Trimmed-533,34515 May 2026 (the filing on sec.gov)
AQR Capital Management LLC633,790$7.8munder 0.1%Added+510,74515 May 2026 (the filing on sec.gov)
Brevan Howard Capital Management LP481,780$6.0m0.05%Added+295,42515 May 2026 (the filing on sec.gov)
AllianceBernstein LP400,444$5.1munder 0.1%Added+47,80015 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc402,664$5.0munder 0.1%Trimmed-490,75215 May 2026 (the filing on sec.gov)
Tudor Investment Corp400,021$4.9munder 0.1%Trimmed-48,86515 May 2026 (the filing on sec.gov)
Two Sigma Investments LP396,129$4.9munder 0.1%Held015 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP369,635$4.6munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
Woodline Partners LP250,861$3.1munder 0.1%Held015 May 2026 (the filing on sec.gov)
Winton Group Ltd231,371$2.9m0.10%Trimmed-55,91212 May 2026 (the filing on sec.gov)
Walleye Capital LLC152,727$1.9munder 0.1%Added+53,08113 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd151,050$1.9munder 0.1%Held018 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC143,719$1.8munder 0.1%Trimmed-688,66815 May 2026 (the filing on sec.gov)
Quantbot Technologies LP57,882$715kunder 0.1%Newnew13 May 2026 (the filing on sec.gov)
Man Group PLC42,883$530kunder 0.1%Trimmed-18,25615 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (7)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
1 in Q1 2024 to 11 in Q2 2026

Tracked managers listing it, at least.

0510152018202120222023202420252026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
RIOT by quarter
QuarterHoldersReported valueBuyersSellers
Q4 20171$12mn.a.n.a.
Q1 20181$2.2mn.a.n.a.
Q4 20201$5.8mn.a.n.a.
Q1 20211$62mn.a.n.a.
Q2 20211$80mn.a.n.a.
Q3 20211$4.8mn.a.n.a.
Q1 20221$10mn.a.n.a.
Q2 20221$2.3mn.a.n.a.
Q4 20221$1.5mn.a.n.a.
Q1 20232$21mn.a.n.a.
Q3 20231$840kn.a.n.a.
Q4 20232$32m11
Q1 20241$3.1m10
Q4 20245$223m50
Q1 20254$145m32
Q2 20255$216m32
Q3 202514$844m103
Q4 20256$426m1717
Q1 20265$230m1615
Q2 202611$1.3bn2012

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

RIOT and V →RIOT and AXP →RIOT and BAC →Choose a stock to compare with RIOT →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own RIOT, latest filings →Back to the 13F Explorer →