Vault-13

ALGORHYTHM HLDGS INC RIME

COM NEW · Common Stock · CUSIP 829322502

28 institutional holders +4 vs Q1 2026
1,345,1051.3m shares reported held*
7.9% of all shares outstanding*
$768.8kreported value*
9 new 7 added 6 reduced 4 sold out net bought ≈ $208.7k (+364.9k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 17.0m as of 2026-08-11, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $0.57.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0102030Q1 25: 7Q2 25: 9Q3 25: 8Q4 25: 8Q1 26: 24Q2 26: 2828Q1 25Q2 25Q3 25Q4 25Q1 26Q2 26
Numbers
QuarterHolders
Q1 20257
Q2 20259
Q3 20258
Q4 20258
Q1 202624
Q2 202628

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q2 25: 4 bought or addedQ2 25: 5 cut or sold outQ2 25Q3 25: 3 bought or addedQ3 25: 6 cut or sold outQ3 25Q4 25: 4 bought or addedQ4 25: 4 cut or sold outQ4 25Q1 26: 22 bought or addedQ1 26: 1 cut or sold outQ1 26Q2 26: 16 bought or addedQ2 26: 10 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q2 202545
Q3 202536
Q4 202544
Q1 2026221
Q2 20261610

Biggest buyers

VANGUARD FIDUCIARY TRUST CO Added +75,911+75.9k
HRT FINANCIAL LP New +55,314+55.3k
XTX Topco Ltd Added +52,494+52.5k
JANE STREET GROUP, LLC Added +47,367+47.4k
SUSQUEHANNA INTERNATIONAL GROUP, LLP New +41,931+41.9k
NORTHERN TRUST CORP New +41,879+41.9k
GEODE CAPITAL MANAGEMENT, LLC Added +41,055+41.1k
Financial Management Professionals, Inc. New +28,884+28.9k
TWO SIGMA SECURITIES, LLC New +19,156+19.2k
Arax Advisory Partners New +12,500+12.5k

Biggest sellers

UBS Group AG Reduced -43,505-43.5k
Integras Partners LLC Sold out -20,000-20.0k
Virtu Financial LLC Reduced -7,127-7.1k
LPL Financial LLC Reduced -3,400-3.4k
RAYMOND JAMES FINANCIAL INC Reduced -2,500-2.5k
MORGAN STANLEY Sold out -2,000-2.0k
Tower Research Capital LLC (TRC) Reduced -1,958-2.0k
OSAIC HOLDINGS, INC. Reduced -650-650
WELLS FARGO & COMPANY/MN Sold out -400-400
BlackRock, Inc. Sold out -9-9

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Streeterville Capital LLC 13G · passive investor new · filed 2025-12-16 9.9% new 271.9k≈ $155.5k 2025-12-16

Fell to 5% or below in the last year: Ionic Ventures, LLC (1.9%, 2026-05-12), L1 Capital Global Opportunities Master Fund, Ltd. (5.0%, 2026-02-17)

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 1 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 0 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—1——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—0——
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 CastleKnight Management LP 0.00% of their portfolio New York, NY 230,000230.0k $131.6k $131.6k 0.00% Unchanged
2 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 223,976224.0k $128.1k $128.1k 0.00% Added +47.4k +47,367
3 LUMINUS MANAGEMENT LLC 0.08% of their portfolio HOUSTON, TX 206,250206.2k $118.0k $118.0k 0.08% Unchanged
4 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 100,678100.7k $57.6k $57.6k 0.00% Added +41.1k +41,055
5 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 96,33196.3k $55.1k $55.1k 0.00% Added +75.9k +75,911
6 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 66,38966.4k $38.0k $38.0k 0.00% Added +52.5k +52,494
7 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 60,17060.2k $34.4k $34.4k 0.00% Added +6.1k +6,081
8 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 55,31455.3k $31.0k $31.0k 0.00% New
9 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 41,93141.9k $24.0k $24.0k 0.00% New
10 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 41,87941.9k $24.0k $24.0k 0.00% New
11 PEAK6 LLC 0.00% of their portfolio AUSTIN, TX 35,74635.7k $20.4k $20.4k 0.00% Added +747 +747
12 Financial Management Professionals, Inc. 0.00% of their portfolio AUSTIN, TX 28,88428.9k $16.5k $16.5k 0.00% New
13 RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio ST. PETERSBURG, FL 25,50025.5k $14.6k $14.6k 0.00% Reduced -2.5k -2,500
14 UBS Group AG 0.00% of their portfolio ZURICH, V8 22,74522.7k $13.0k $13.0k 0.00% Reduced -43.5k -43,505
15 TWO SIGMA SECURITIES, LLC 0.00% of their portfolio NEW YORK, NY 19,15619.2k $11.0k $11.0k 0.00% New
16 MEMBERS WEALTH LLC 0.00% of their portfolio MEDIA, PA 15,00015.0k $8.6k $8.6k 0.00% Unchanged
17 Virtu Financial LLC 0.00% of their portfolio New York, NY 13,91513.9k $8.0k $8.0k 0.00% Reduced -7.1k -7,127
18 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 12,50012.5k $7.2k $7.2k 0.00% New
19 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 11,97312.0k $6.8k $6.8k 0.00% Reduced -3.4k -3,400
20 Sanctuary Advisors, LLC 0.00% of their portfolio INDIANAPOLIS, IN 10,00010.0k $5.7k $5.7k 0.00% New
21 PENNINGTON PARTNERS & CO., LLC 0.00% of their portfolio Bethesda, MD 10,00010.0k $5.7k $5.7k 0.00% New
22 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 5,6555.7k $3.2k $3.2k 0.00% Reduced -2.0k -1,958
23 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 5,0005.0k $2.9k $2.9k 0.00% Reduced -650 -650
24 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 2,1012.1k $1.2k $1.2k 0.00% Added +1.5k +1,536
25 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,6051.6k $918 $918 0.00% New
26 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 1,3061.3k $747 $747 0.00% Unchanged
27 LANARK FINANCIAL, INC. 0.00% of their portfolio BIRMINGHAM, AL 1,1001.1k $629 $629 0.00% Unchanged
28 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 11 $1 $1 0.00% Unchanged