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).
Reading BrokerCheck Reports - How Muriel Siebert & Co., LLC's 0.44 disclosures-per-office figure is derived.
Most Disclosures - Raw disclosure-volume leaders for context next to Muriel Siebert & Co., LLC.
Compare firms - put Muriel Siebert & Co., LLC next to peers on grade and footprint.
Read our methodology
- heavier-disclosure firms: how raw counts and per-office intensity are graded.
Retrieved and formatted by PlainAdvisorCheck from FINRA BrokerCheck public records.
Every figure on PlainAdvisorCheck is rendered directly from FINRA BrokerCheck and SEC
IAPD disciplinary records, no number is typed in by an editor. This page draws directly on FINRA BrokerCheck and SEC IAPD data, no figure is typed in by an editor. See our
editorial standards & corrections policy, the
methodology behind these numbers, or
report a data error. Data current as of July 2026.