Ticker · CUSIP 560667107
Holders (tracked)
1
Combined shares
64,373
Combined value
$20.4K
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
3 events
- +64,373 shares · 2025Q4Position
- Two Sigma Investments exited2026-02-17−12,729 shares · 2025Q4Position
- Two Sigma Investments trimmed2025-11-14−5,687 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions1
- Ken Griffin (Citadel Advisors)+64,373$20K
Added to0
—
Trimmed0
—
Exited1
- Two Sigma Investments−12,729$15K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2023Q4 | 1 | $287K |
| 2024Q1 | 1 | $147K |
| 2024Q2 | 1 | $135K |
| 2024Q3 | 2 | $34K |
| 2025Q1 | 2 | $72K |
| 2025Q2 | 2 | $39K |
| 2025Q3 | 1 | $15K |
| 2025Q4 | 1 | $20K |
Who owns MSS
1 super-investors · 2025Q4
Tracked stake
64.4K
shares
Combined value
$20K
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 64.4K | $20K |
Recent moves
10 transactions
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