SEC ownership of MusclePharm Corp

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001415684.

Comparable stake leader

White Winston Select Asset Fund Series Fund MP-18, LLC

Disclosed value leader

—

Comparable rows

0/2

Latest evidence

29 Mar 2022

Top shareholders Insider holders Latest transactions

Parsed ownership sources: 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder: White Winston Select Asset Fund Series Fund MP-18, LLC
Ranking: Comparable ownership first, then disclosed value
Latest parsed ownership date: 29 Mar 2022
Freshness: Most recent filing date in this holder set
Issuer CIK: 0001415684
Issuer location: Denver, CO

Ownership snapshot

Top shareholders of MusclePharm Corp (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

White Winston Select Asse...

Disclosed value leader

—

Comparable rows

0/2

Latest evidence

29 Mar 2022

3/4/5 Some rows are evidence-backed but not safely comparable across classes. 2 rows are not safely comparable across share classes.

Quick read

SEC ownership evidence is available, but the rows are not safely comparable across share classes.

0 of 2 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens White Winston Select Asset Fund Series Fund MP-18, LLC's linked filing trail.

Detailed SEC evidence table Showing 1-2 of 2 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
White Winston Select Asset Fund Series Fund MP-18, LLC	3/4/5 10%+ Owner 3/4/5	— class O/S missing	— 3,021,529 shares	—	29 Mar 2022
Sabina Rizvi	3/4/5 President & CFO, Director 3/4/5	— class O/S missing	— 1,811,000 shares	—	21 Dec 2021

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 12 Aug 2025.

Buys

Insiders: 0

Sells

Insiders: 0

Net

Shares: 0

Window

Last 12 months

4 rolling buckets

Buy value Sell value

Shares: 0 Shares: 0

Window (months)	Buy value	Sell value	Net value
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-5 of 5 reporting-owner rows connected to MusclePharm Corp. Open a relationship link for the CIK-to-CIK filing trail.

Rows

Largest Forms 3/4/5 holder

Eric Bing Chin

Net 12M change

Latest report

17 Jun 2022

Name	Relationship	Valuation	Report Date
Eric Bing Chin	Chief Accounting Officer	Mixed	17 Jun 2022
White Winston Select Asset Fund Series Fund MP-18, LLC	10%+ Owner	Mixed	29 Mar 2022
Ryan Charles Drexler	CEO, Director, 10%+ Owner	Mixed	13 Aug 2020
Sabina Rizvi	President & CFO, Director	Mixed	21 Dec 2021
Paul W. Karr	Director	Mixed	01 Jun 2021

Recent insider transactions for MusclePharm Corp

Showing up to 300 recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	%	SEC-reported value	SEC-reported price	Shares	Shares owned	Date	Ownership
No insider transactions were found in the last 12 months for this issuer.

^* marks a reported price that did not pass the local price check.