Anson Funds Management LP - 22 Jul 2025 SCHEDULE 13D/A Report for MEI Pharma, Inc. Common Stock, $0.00000002 par value (MEIP)

Filing manager: Anson Funds Management LP
Reporting owner: Anson Funds Management LP
Security: MEI Pharma, Inc. Common Stock, $0.00000002 par value
Beneficially owned shares: 1,093,188 shares
Large-stake signal: Form
SCHEDULE 13D/A
Active or control-oriented beneficial ownership filing.
Ownership
3.7%
Beneficial ownership of this reported class.
Shares
1,093,188 shares
Shares beneficially owned as disclosed.
Event date
22 Jul 2025
Date tied to the ownership event or amendment.
Accepted by SEC
24 Jul 2025
EDGAR acceptance date.
How to read this large-stake filing
Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
Compare this filing with the holder history and issuer page before treating the percentage as a current position.
Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership: 3.7%
Symbol: MEIP
Shares outstanding: 29,545,622 shares
SEC form: SCHEDULE 13D/A
Accepted by SEC: 24 Jul 2025, 15:53:54 UTC
Event date: 22 Jul 2025
Source filing: View source filing

Key filing fact

Anson Funds Management LP disclosed 3.7% ownership in MEI Pharma, Inc. Common Stock, $0.00000002 par value (MEIP) on 22 Jul 2025.

Key facts

Anson Funds Management LP filed SCHEDULE 13D/A for MEI Pharma, Inc. Common Stock, $0.00000002 par value (MEIP).
Disclosed ownership: 3.7%.
Date of event: 22 Jul 2025.

This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

Reporting persons

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares owned	Sole voting power	Shared voting power	Signature	Title	CIK
Funicular Funds, LP	0.1%	35,300	35,300	0	/s/ Jacob Ma-Weaver	Jacob Ma-Weaver, Managing Member	0001937147
Cable Car Capital, LP	0.1%	35,300	35,300	0	/s/ Jacob Ma-Weaver	Jacob Ma-Weaver, Managing Member	0001699575
Ma-Weaver Jacob	0.1%	35,300	35,300	0	/s/ Jacob Ma-Weaver	Jacob Ma-Weaver	0001922140
Anson Investments Master Fund LP	2.8%	841,674	0	841,674	/s/ Tony Moore	Tony Moore, Director of AIMF GP LLC, its general partner	0001504872
AIMF GP LLC	2.8%	841,674	0	841,674	/s/ Tony Moore	Tony Moore, Director
Anson East Master Fund LP	0.7%	214,304	0	214,304	/s/ Tony Moore	Tony Moore, Director of AEMF GP LLC, its general partner
AEMF GP LLC	0.7%	214,304	0	214,304	/s/ Tony Moore	Tony Moore, Director
Anson Opportunities Master Fund LP	0.1%	37,210	0	37,210	/s/ Tony Moore	Tony Moore, Director of AOMF GP, LLC, its general partner
AOMF GP, LLC	0.1%	37,210	0	37,210	/s/ Tony Moore	Tony Moore, Director
Anson Funds Management LP	3.7%	1,093,188	0	1,093,188	/s/ Tony Moore	Tony Moore, Manager of Anson Management GP LLC, its general partner	0001491072
Anson Management GP LLC	3.7%	1,093,188	0	1,093,188	/s/ Tony Moore	Tony Moore, Manager	0001491073
Tony Moore	3.7%	1,093,188	0	1,093,188	/s/ Tony Moore	Tony Moore	0002012586
Anson Advisors Inc.	3.7%	1,093,188	0	1,093,188	/s/ Amin Nathoo	Amin Nathoo, Director	0001581079
Amin Nathoo	3.7%	1,093,188	0	1,093,188	/s/ Amin Nathoo	Amin Nathoo	0001962354
Moez Kassam	3.7%	1,093,188	0	1,093,188	/s/ Moez Kassam	Moez Kassam	0001585167

CIK / CUSIP context first

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