Ticker · CUSIP 56146T103
Holders (tracked)
8
Combined shares
2,111,204
Combined value
$28.20M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+1 vs previous quarter over the last 8.
SEC event timeline
10 events
- Wellington Management opened position2026-02-17+288,859 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−24,651 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−69,194 shares · 2025Q413F
- T. Rowe Price added2026-02-17+2,646 shares · 2025Q413F
- Renaissance Technologies added2026-02-12+20,200 shares · 2025Q413F
- −60,144 shares · 2025Q413F
- D.E. Shaw & Co. added2025-11-14+11,526 shares · 2025Q313F
- T. Rowe Price added2025-11-14+1,801 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+19,900 shares · 2025Q313F
- First Eagle Investment Management added2025-11-12+21,700 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
1
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-08 | Michaels Adam Laurance Chief Executive Officer · Insider | A | 97,478 | — | $0 |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Wellington Management+288,859$3.9M
Added to2
- Renaissance Technologies+20,200$272K
- T. Rowe Price+2,646$36
Trimmed3
- Ken Griffin (Citadel Advisors)−69,194$933K
- First Eagle Investment Management−60,144$811K
- D.E. Shaw & Co.−24,651$333K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2021Q4 | 1 | $46K |
| 2022Q2 | 1 | $49K |
| 2022Q3 | 2 | $61 |
| 2022Q4 | 2 | $85K |
| 2023Q1 | 2 | $126K |
| 2023Q2 | 3 | $254K |
| 2023Q3 | 3 | $556K |
| 2023Q4 | 4 | $1.2M |
| 2024Q1 | 8 | $3.6M |
| 2024Q2 | 8 | $20.5M |
| 2024Q3 | 8 | $11.8M |
| 2024Q4 | 7 | $13.1M |
| 2025Q1 | 7 | $11.5M |
| 2025Q2 | 6 | $14.5M |
| 2025Q3 | 7 | $20.2M |
| 2025Q4 | 8 | $28.2M |
Who owns MAMA
8 super-investors · 2025Q4
Tracked stake
2.11M
shares
Combined value
$28M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added2Trim5
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | First Eagle Investment Management | 1.28M | $17M |
| 2 | Renaissance Technologies | 341.3K | $5M |
| 3 | Wellington Management | 288.9K | $4M |
| 4 | Ken Griffin Citadel Advisors | 81.6K | $1M |
| 5 | D.E. Shaw & Co. | 50.5K | $681K |
| 6 | Ken Griffin Citadel Advisors | 26.4K | $356K |
| 7 | Ken Griffin Citadel Advisors | 24.4K | $329K |
| 8 | T. Rowe Price | 20.7K | $280 |
Recent moves
20 transactions
- TRIMD.E. Shaw & Co.−24,651 · 2025Q4
- −69,194 · 2025Q4
- +288,859 · 2025Q4
- +2,646 · 2025Q4
- +20,200 · 2025Q4
- −60,144 · 2025Q4
- +11,526 · 2025Q3
- +1,801 · 2025Q3
- +19,900 · 2025Q3
- +21,700 · 2025Q3
- +1,940 · 2025Q2
- TRIMD.E. Shaw & Co.−11,809 · 2025Q2
- +15,700 · 2025Q2
- −5,121 · 2025Q2
- −15,041 · 2025Q1
- TRIMD.E. Shaw & Co.−6,563 · 2025Q1
- −20,900 · 2025Q1
- +1,683 · 2025Q1
- +185,618 · 2025Q1
- −24,955 · 2024Q4
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