MEI Pharma, Inc.
MEI Pharma, Inc. (MEIP) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MEIP · as of Jun 30, 2023
Ownership Breakdown
1
Institutional Holders
▼ 45 vs Q1
$958,000
Total Inst. Value
▼ $10.21M vs Q1
6.66M
Shares Outstanding
freeFloat 85.78%
145,654
13F Shares Held
▼ 48.66M vs Q1
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MEIP largest shareholders · institutional ownership
Q2 2023 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BOXER CAPITAL, LLC pharmaceutical preparations | 145.7K | 2.19% | 2.19% | $958.00M | Aug 14, 2023 | ▼ 2.77M |
NORTHERN TRUST CORP pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 11, 2023 | EXIT |
GROUP ONE TRADING, L.P. pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 9, 2023 | EXIT |
VANGUARD GROUP INC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 14, 2023 | EXIT |
MORGAN STANLEY pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 14, 2023 | EXIT |
ACADIAN ASSET MANAGEMENT LLC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 7, 2023 | EXIT |
STATE STREET CORP pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 14, 2023 | EXIT |
RENAISSANCE TECHNOLOGIES LLC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 11, 2023 | EXIT |
VICTORY CAPITAL MANAGEMENT INC pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Jul 27, 2023 | EXIT |
WELLS FARGO & COMPANY/MN pharmaceutical preparations | 0 | 0.00% | 0.00% | $0 | Aug 15, 2023 | EXIT |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q2 2023 vs prior quarter
Q2 2023
0
Increased
+0 shares0
New Positions
first time holders1
Decreased
−2.77M shares43
Sold Out
fully exitedNet shares change (top 50)
2.77M
+0 / −2.77M
Net new holders
-44
0 new / 43 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MEIP insider trading · insider activity
Source: SEC Form 4
7
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Riezman Joshua director | Aug 8, 2025 | Award | 10,000 | $5.19 | $51.9K | 10.0K | Form 4 ↗ |
Wood Steven D director | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
Reynolds Thomas C director | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
Glover Nicholas director | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
Flynn James P director | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
File Justin J. Secretary, Acting CEO & CFO | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
DRISCOLL FREDERICK W director | Jul 15, 2025 | Award | 20,000 | $3.07 | $61.4K | 20.0K | Form 4 ↗ |
Wood Steven D director | May 17, 2024 | Award | 3,100 | $3.17 | $9.8K | 4.4K | Form 4 ↗ |
Flynn James P director | May 16, 2024 | Award | 7,900 | $3.16 | $25.0K | 7.9K | Form 4 ↗ |
Flynn James P director | Dec 18, 2023 | Award | 10,000 | $6.19 | $61.9K | 10.0K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
MEI Pharma, Inc. (MEIP) is primarily owned by institutional investors, who hold approximately 2.2% of total shares outstanding. Company insiders own approximately 14.22%, while retail and public investors account for the remaining 83.60%.
The largest institutional shareholder of MEI Pharma, Inc. is BOXER CAPITAL, LLC, holding approximately 145,654 shares — equal to 2.19% of outstanding shares — as of June 30, 2023.
A total of 1 institutional investors currently hold MEIP stock, with a combined institutional value of approximately $958,000 as of the most recent 13F filing period.
Frequently asked questions
MEIP ownershipMEI Pharma, Inc. (MEIP) is primarily owned by institutional investors, who hold approximately 2.2% of shares. The largest shareholder is BOXER CAPITAL, LLC with a 2.19% stake. Company insiders hold 14.22%. Data sourced from SEC Form 13F as of June 30, 2023.