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  • SIEB Siebert Financial Corp

SIEB

Siebert Financial Corp

Company with tickers: SIEB

CIK
65596
CUSIP
826176109
Shares Outstanding
40,940,936
13F Activity (30d)
47 filings 47 filers
Holders: 55
Total Value: $6,136,233
Total Shares: 3,195,975

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 55 13F filers · Δ vs Dec 31, 2025
Top Holder
24.4%
Jun 2023 → Mar 2026 · range 21.9% – 52.3%
−0.0 pts
Top 5
64.9%
Jun 2023 → Mar 2026 · range 64.9% – 88.8%
−4.8 pts
Top 10
82.4%
Jun 2023 → Mar 2026 · range 81.8% – 99.7%
−0.6 pts
HHI
1,205
Jun 2023 → Mar 2026 · range 1,181 – 3,189
Broadly held −192

Quarterly Activity

vs Dec 31, 2025
New
14
Increased
12
Decreased
20
Sold Out
7
Unchanged
9
Holder count: +7
Institutional value: -46.1%
Shares held: -1.4%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Mega UBS Group AG +73,299 160,593
Mega GEODE CAPITAL MANAGEMENT, LLC +17,080 435,539
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP +13,332 28,665
Mega NORTHERN TRUST CORP +10,216 138,625
Large OSAIC HOLDINGS, INC. +5,400 10,930

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mega DIMENSIONAL FUND ADVISORS LP −27,509 34,841
Mega BARCLAYS PLC −19,165 3,018
Mega BlackRock, Inc. −11,514 779,586
Mega WELLS FARGO & COMPANY/MN −10,495 5,323
Mega AMERICAN CENTURY COMPANIES INC −10,376 13,088

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 550,619 $1,057,188
Mega VANGUARD FIDUCIARY TRUST CO 112,895 $216,758
Mega VANGUARD PORTFOLIO MANAGEMENT LLC 80,715 $154,972
Mega CITADEL ADVISORS LLC 27,345 $52,502
Micro Williams & Novak, LLC 15,800 $30,336

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 752,586 $2,641,575
Small NAVELLIER & ASSOCIATES INC 68,326 $239,824
Mid WINTON GROUP Ltd 19,336 $67,869
Mega JANE STREET GROUP, LLC 16,373 $57,468
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 872 $3,060
Filter: New 14 Increased 12 Reduced 20 Sold out 7 Unchanged 9
Showing 55 of 55
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mega BlackRock, Inc. $1,496,802 24.39% 779,586
Mega VANGUARD CAPITAL MANAGEMENT LLC $1,057,188 17.23% 550,619
Mega GEODE CAPITAL MANAGEMENT, LLC $836,234 13.63% 435,539
Mega UBS Group AG $308,338 5.02% 160,593
Large Cetera Investment Advisers $281,201 4.58% 146,459
Mega STATE STREET CORP $276,929 4.51% 144,234
Mega NORTHERN TRUST CORP Bank $266,158 4.34% 138,625
Mega VANGUARD FIDUCIARY TRUST CO Bank $216,758 3.53% 112,895
Large STRS OHIO $161,664 2.63% 84,200
Mega VANGUARD PORTFOLIO MANAGEMENT LLC $154,972 2.53% 80,715
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $109,939 1.79% 57,260
Large Focus Partners Wealth $70,056 1.14% 36,488
Mega GOLDMAN SACHS GROUP INC $69,250 1.13% 36,068
Mega Bank of New York Mellon Corp Bank $68,612 1.12% 35,736
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $67,562 1.10% 35,189
Mega DIMENSIONAL FUND ADVISORS LP $66,893 1.09% 34,841
Mega DEUTSCHE BANK AG\ Bank $63,020 1.03% 32,823
Large PANAGORA ASSET MANAGEMENT INC $62,908 1.03% 32,765
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $55,036 0.90% 28,665
Mega CITADEL ADVISORS LLC $52,502 0.86% 27,345
Large RENAISSANCE TECHNOLOGIES LLC $41,856 0.68% 21,800
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $41,472 0.68% 21,600
Mega Nuveen, LLC $35,101 0.57% 18,282
Mega RHUMBLINE ADVISERS $34,172 0.56% 17,798
Micro Williams & Novak, LLC $30,336 0.49% 15,800
Mega AMERICAN CENTURY COMPANIES INC $25,128 0.41% 13,088
Mega BANK OF AMERICA CORP /DE/ Bank $23,339 0.38% 12,156
Large OSAIC HOLDINGS, INC. $20,985 0.34% 10,930
Mega Vanguard Global Advisers, LLC $18,138 0.30% 9,447
Large Police & Firemen's Retirement System of New Jersey Pension $16,402 0.27% 8,543
Mega MORGAN STANLEY $15,802 0.26% 8,232
Mid Tower Research Capital LLC (TRC) $15,050 0.25% 7,839
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $13,117 0.21% 6,832
Mega JPMORGAN CHASE & CO $11,988 0.20% 6,244
Mega WELLS FARGO & COMPANY/MN $10,219 0.17% 5,323
Mega ROYAL BANK OF CANADA Bank $9,126 0.15% 4,754
Mega FMR LLC $8,699 0.14% 4,531
Mega BNP PARIBAS ARBITRAGE, SA $6,024 0.10% 3,138
Mega BARCLAYS PLC $5,793 0.09% 3,018
Mid Ameritas Investment Partners, Inc. $2,772 0.05% 1,444
Mega Legal & General Group Plc $2,461 0.04% 1,282
Large Russell Investments Group, Ltd. $2,248 0.04% 1,171
Large CWM, LLC $1,411 0.02% 735
Mega CITIGROUP INC $1,276 0.02% 665
Mid Sterling Capital Management LLC $825 0.01% 430
Small Essential Partners LLC $263 0.00% 137
Mid EverSource Wealth Advisors, LLC $53 0.00% 28
Mid Allworth Financial LP $51 0.00% 27
Mid SIMPLEX TRADING, LLC $48 0.00% 25
Mid IFP Advisors, Inc $21 0.00% 11
Mega PNC FINANCIAL SERVICES GROUP, INC. $17 0.00% 9
Micro True Wealth Design, LLC $7 0.00% 4
Mid Farther Finance Advisors, LLC $5 0.00% 3
Mid ROTHSCHILD INVESTMENT LLC $3 0.00% 2
Mid MAI Capital Management $3 0.00% 2

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