SIEBERT FINANCIAL CORP (SIEB) — Institutional Holders, Q2 2026
48 institutional investment managers reported a SIEB position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $3.9M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
SIEB in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- CANTOR FITZGERALD, L. P.New · +515,911 sh+$851.3K
- MILLENNIUM MANAGEMENTNew · +121,232 sh+$200.0K
- JANE STREET GROUPNew · +55,771 sh+$92.0K
- AQR CAPITAL MANAGEMENTNew · +25,273 sh+$41.7K
- CITADEL ADVISORSAdded · +21,561 sh+$35.6K
Biggest sellers
- BlackRockTrimmed · -677,640 sh-$1.1M
- GEODE CAPITAL MANAGEMENTTrimmed · -181,651 sh-$299.7K
- UBS Group AGTrimmed · -138,297 sh-$228.2K
- NORTHERNTrimmed · -96,313 sh-$158.9K
- STATE STREETTrimmed · -93,584 sh-$154.4K
SIEB 13F holders ranked 1–48 of 48
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT#1 · 549,720 sh | 549,720 | $907.0K | 0.00% | -0.2% |
| 2 | CANTOR FITZGERALD, L. P.#2 · 515,911 sh | 515,911 | $851.3K | <0.01% | New |
| 3 | GEODE CAPITAL MANAGEMENT#3 · 253,888 sh | 253,888 | $419.2K | 0.00% | -41.7% |
| 4 | Cetera Investment Advisers#4 · 146,990 sh | 146,990 | $242.5K | <0.01% | +0.4% |
| 5 | MILLENNIUM MANAGEMENT#5 · 121,232 sh | 121,232 | $200.0K | <0.01% | New |
| 6 | VANGUARD FIDUCIARY#6 · 107,626 sh | 107,626 | $177.6K | 0.00% | -4.7% |
| 7 | BlackRock#7 · 101,946 sh | 101,946 | $168.2K | 0.00% | -86.9% |
| 8 | GOLDMAN SACHS GROUP#8 · 56,158 sh | 56,158 | $92.7K | 0.00% | +55.7% |
| 9 | JANE STREET GROUP#9 · 55,771 sh | 55,771 | $92.0K | 0.00% | New |
| 10 | STATE STREET#10 · 50,650 sh | 50,650 | $83.6K | 0.00% | -64.9% |
| 11 | CITADEL ADVISORS#11 · 48,906 sh | 48,906 | $80.7K | 0.00% | +78.8% |
| 12 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#12 · 48,308 sh | 48,308 | $79.7K | 0.00% | +68.5% |
| 13 | NORTHERN#13 · 42,312 sh | 42,312 | $69.8K | 0.00% | -69.5% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT#14 · 35,307 sh | 35,307 | $58.3K | <0.01% | -38.3% |
| 15 | DIMENSIONAL FUND ADVISORS#15 · 26,299 sh | 26,299 | $43.5K | 0.00% | -24.5% |
| 16 | AQR CAPITAL MANAGEMENT#16 · 25,273 sh | 25,273 | $41.7K | 0.00% | New |
| 17 | UBS Group AG#17 · 22,296 sh | 22,296 | $36.8K | 0.00% | -86.1% |
| 18 | MORGAN STANLEY#18 · 22,084 sh | 22,084 | $36.4K | 0.00% | +168.3% |
| 19 | Williams & Novak#19 · 21,900 sh | 21,900 | $36.1K | — | +38.6% |
| 20 | Qube Research & Technologies Ltd#20 · 21,315 sh | 21,315 | $35.2K | 0.00% | New |
| 21 | RENAISSANCE TECHNOLOGIES#21 · 21,000 sh | 21,000 | $34.6K | 0.00% | -3.7% |
| 22 | XTX Topco Ltd#22 · 17,780 sh | 17,780 | $29.3K | <0.01% | New |
| 23 | AMERICAN CENTURY COMPANIES#23 · 11,545 sh | 11,545 | $19.0K | 0.00% | -11.8% |
| 24 | Point72 Asset Management, L.P.#24 · 11,398 sh | 11,398 | $18.8K | 0.00% | New |
| 25 | Vanguard Global Advisers#25 · 9,447 sh | 9,447 | $15.6K | 0.00% | 0.0% |
| 26 | Russell Investments Group, Ltd.#26 · 8,859 sh | 8,859 | $14.6K | 0.00% | +656.5% |
| 27 | OSAIC#27 · 8,130 sh | 8,130 | $13.4K | 0.00% | -25.6% |
| 28 | RHUMBLINE ADVISERS#28 · 7,380 sh | 7,380 | $12.2K | 0.00% | -58.5% |
| 29 | ROYAL BANK OF CANADA#29 · 6,728 sh | 6,728 | $11.0K | 0.00% | +41.5% |
| 30 | Tower Research Capital (TRC)#30 · 1,060 sh | 1,060 | $1.7K | 0.00% | -86.5% |
| 31 | BARCLAYS PLC#31 · 654 sh | 654 | $1.1K | 0.00% | -78.3% |
| 32 | SRS Capital Advisors#32 · 576 sh | 576 | $951.00 | 0.00% | New |
| 33 | JPMORGAN CHASE#33 · 482 sh | 482 | $815.00 | 0.00% | -92.3% |
| 34 | CITIGROUP#34 · 400 sh | 400 | $660.00 | 0.00% | -39.8% |
| 35 | FMR#35 · 190 sh | 190 | $314.00 | 0.00% | -95.8% |
| 36 | BNP PARIBAS FINANCIAL MARKETS#36 · 101 sh | 101 | $167.00 | 0.00% | -96.8% |
| 37 | EverSource Wealth Advisors#37 · 73 sh | 73 | $121.00 | 0.00% | -68.9% |
| 38 | Integrated Wealth Concepts#38 · 70 sh | 70 | $116.00 | 0.00% | New |
| 39 | Allworth Financial#39 · 57 sh | 57 | $95.00 | 0.00% | +111.1% |
| 40 | Essential Partners#40 · 41 sh | 41 | $68.00 | — | -70.1% |
| 41 | Farther Finance Advisors#41 · 24 sh | 24 | $40.00 | — | +700.0% |
| 42 | ROTHSCHILD INVESTMENT#42 · 13 sh | 13 | $21.00 | 0.00% | +550.0% |
| 43 | IFP Advisors#43 · 11 sh | 11 | $18.00 | — | 0.0% |
| 44 | Fortitude Family Office#44 · 10 sh | 10 | $17.00 | — | New |
| 45 | WELLS FARGO & COMPANY#45 · 10 sh | 10 | $17.00 | 0.00% | -99.8% |
| 46 | Caitong International Asset Management , Ltd#46 · 4 sh | 4 | $7.00 | 0.00% | New |
| 47 | True Wealth Design#47 · 2 sh | 2 | $4.00 | — | -50.0% |
| 48 | SJS Investment Consulting#48 · 1 sh | 1 | $2.00 | — | New |
Funds that sold out of SIEB in Q2 2026 (18)
Held SIEB at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| STRS OHIO84,200 sh | 84,200 | $161.7K |
| VANGUARD PORTFOLIO MANAGEMENT80,715 sh | 80,715 | $155.0K |
| Focus Partners Wealth36,488 sh | 36,488 | $70.1K |
| Bank of New York Mellon35,736 sh | 35,736 | $68.6K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT35,189 sh | 35,189 | $67.6K |
| DEUTSCHE BANK AG\32,823 sh | 32,823 | $63.0K |
| PANAGORA ASSET MANAGEMENT32,765 sh | 32,765 | $62.9K |
| NEW YORK STATE COMMON RETIREMENT FUND21,600 sh | 21,600 | $41.5K |
| Nuveen18,282 sh | 18,282 | $35.1K |
| BANK OF AMERICA12,156 sh | 12,156 | $23.3K |
| Police & Firemen's Retirement System of New Jersey8,543 sh | 8,543 | $16.4K |
| MIRAE ASSET GLOBAL ETFS Ltd.6,832 sh | 6,832 | $13.1K |
| Ameritas Investment Partners1,444 sh | 1,444 | $2.8K |
| Legal & General Group Plc1,282 sh | 1,282 | $2.5K |
| Sterling Capital Management430 sh | 430 | $826.00 |
| SIMPLEX TRADING25 sh | 25 | $48.00 |
| PNC FINANCIAL SERVICES GROUP9 sh | 9 | $17.00 |
| MAI Capital Management2 sh | 2 | $4.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.