According to FINRA BrokerCheck disclosure totals used on PlainAdvisorCheck graded firms, Muriel Siebert & Co., LLC ranks #1,034 of 20,055 by disclosure count (most disclosures first). Among firms registered in NY, it ranks #102 of 868 on the same disclosure sort used on the state browse page. Muriel Siebert & Co., LLC carries 7 BrokerCheck disclosures across 16 branch offices - moderate load for a regional firm, earning a Grade B.
Disclosures per office among regional firm peers (lower is cleaner)
Muriel Siebert & Co., LLC ranks #1,034 of 20,055 by disclosure count among graded broker-dealers; moderate load at 0.44 disclosures per office.Verify on FINRA BrokerCheck →
PlainAdvisorCheck rating 4/5 - an editorial, size-normalized signal, not a regulatory determination. Always verify the underlying record on FINRA BrokerCheck before engaging an advisor.
Data updated July 2026
Branch offices
16offices
FINRA: Small firm
Total disclosures
7events
On FINRA BrokerCheck
Regulatory events
6actions
86% of all disclosures
Disclosures per office
0.44per office
7 ÷ 16 offices
Muriel Siebert & Co., LLC vs. every disclosing firm
Disclosures per branch office, the size-normalized signal behind the grade (lower is cleaner)
0Among the cleanest for its sizea cleaner per-office record than 63% of 1,251 disclosing firms
Each bar is a band; taller bars hold more disclosing firms. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source FINRA BrokerCheck · SEC IAPD · 2026
Disclosure Breakdown
Disclosure Type
Count
% of Disclosures
Regulatory Events
6
85.7%
Arbitrations
1
14.3%
Civil Events
0
0.0%
Total
7
100.0%
Counts for Muriel Siebert & Co., LLC reflect events reported on FINRA BrokerCheck as of July 2026. Disclosures are reported events, not proven violations.
Disclosure category share
Regulatory 6Arbitration 1Civil 0
Firm Details
Firm Size
Small
Scope
ACTIVE
Location
New York, NY
CRD Number
5376
Regulator-heavy mix
Muriel Siebert & Co., LLC in the heavier-disclosure third
Muriel Siebert & Co., LLC carries 7 BrokerCheck disclosures across 16 branch offices - a heavier-third raw book among graded firms (#1,034 of 20,055). Regulator-initiated events are 86% of the book (6 regulatory / 1 arbitration / 0 civil).
Educational summary of Muriel Siebert & Co., LLC's disclosure book - not financial advice. Disclosures are reported events, not proven violations; consult a licensed advisor before decisions.
New York cohort · 0.80× state average
Muriel Siebert & Co., LLC tracks near the New York disclosure average
Muriel Siebert & Co., LLC reports 7 BrokerCheck disclosures, about 0.80× the New York average of 8.7 across 868 graded firms.
In New York, 513 firms carry Grade A and 7 carry Grade F on the same size-normalized scale.
Source: FINRA BrokerCheck & SEC IAPD Public Disclosure Data
Frequently Asked Questions
Where does Muriel Siebert & Co., LLC sit among graded broker-dealers by disclosure count?
According to FINRA BrokerCheck disclosure totals used on PlainAdvisorCheck graded firms, Muriel Siebert & Co., LLC ranks #1,034 of 20,055 by disclosure count (most disclosures first). Among firms registered in NY, it ranks #102 of 868 on the same disclosure sort used on the state browse page. Ordinals match the disclosure-first sort documented on our methodology corpus-placement section. A high disclosure rank is not automatically a finding of wrongdoing; larger firms accumulate more reported events. Always review the underlying FINRA BrokerCheck detail before engaging.
What does a grade of B mean for Muriel Siebert & Co., LLC?
A grade of B reflects Muriel Siebert & Co., LLC's disclosure intensity, its weighted disclosure load per branch office, ranked against other firms of a similar size (regional firm). It carries 7 total disclosures across 16 branch offices. Review the specific disclosures on FINRA BrokerCheck before engaging.
How many FINRA disclosures does Muriel Siebert & Co., LLC have?
Muriel Siebert & Co., LLC has 7 total FINRA disclosures, including 6 regulatory events, 1 arbitration. Disclosures reflect reported events on FINRA BrokerCheck and do not necessarily indicate proven violations.
How big is Muriel Siebert & Co., LLC?
Muriel Siebert & Co., LLC operates 16 branch offices and is classified by FINRA as a small firm, registered in NY (Regional firm). FINRA BrokerCheck publishes branch-office counts but not a firmwide registered-representative headcount, so PlainAdvisorCheck measures firm size by branch footprint.
Where can I verify Muriel Siebert & Co., LLC's disciplinary record?
You can verify Muriel Siebert & Co., LLC's full disciplinary history on FINRA BrokerCheck at brokercheck.finra.org using CRD number 5376. BrokerCheck provides detailed information about individual registered representatives, complaints, and regulatory actions.
What is a FINRA disclosure?
A FINRA disclosure is a reported event (regulatory, arbitration, or civil). Muriel Siebert & Co., LLC's 7 events mean reading the underlying BrokerCheck detail matters more than the raw count alone.
Should I avoid Muriel Siebert & Co., LLC because of its disclosures?
Not necessarily. Larger firms accumulate more disclosures simply because they operate more offices, so PlainAdvisorCheck grades each firm against same-size peers rather than on raw counts. Muriel Siebert & Co., LLC carries 7 disclosures across 16 branch offices (about 0.44 per office). Review the nature of individual disclosures on FINRA BrokerCheck before making a decision.
Nationwide peers by disclosures or branches
Two PlainAdvisorCheck-derived peer sets for Muriel Siebert & Co., LLC, both outside NY so the neighborhoods are not state containment (the same-size intensity list below stays size-tier local).
Similar disclosure totals
Nearest cross-state graded firms by BrokerCheck disclosure count (7 here).