Ticker · CUSIP 554382101
Holders (tracked)
12
Combined shares
34,137,048
Combined value
$625.56M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
-1 vs previous quarter over the last 8.
SEC event timeline
24 events
- AQR Capital Management added2026-02-17+8,106 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−1,409,368 shares · 2025Q413F
- Steve Cohen (Point72) exited2026-02-17−715,883 shares · 2025Q413F
- T. Rowe Price added2026-02-17+9,919 shares · 2025Q413F
- Wellington Management added2026-02-17+2,142,737 shares · 2025Q413F
- Ron Baron (Baron Capital / BAMCO) added2026-02-17+376,392 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) added2026-02-17+511,439 shares · 2025Q413F
- Renaissance Technologies exited2026-02-12−202,587 shares · 2025Q413F
- Norges Bank (Norway SWF) opened position2026-02-10+3,625,338 shares · 2025Q413F
- Ken Fisher (Fisher Asset Mgmt) added2026-02-09+18,408 shares · 2025Q413F
- Bill Smead (Smead Capital) trimmed2026-02-09−968,119 shares · 2025Q413F
- First Eagle Investment Management added2026-02-04+1,900 shares · 2025Q413F
- AQR Capital Management added2025-11-14+7,559 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−940,856 shares · 2025Q313F
- Steve Cohen (Point72) opened position2025-11-14+715,883 shares · 2025Q313F
- T. Rowe Price added2025-11-14+12,242 shares · 2025Q313F
- Wellington Management added2025-11-14+595,122 shares · 2025Q313F
- Ron Baron (Baron Capital / BAMCO) added2025-11-14+463,102 shares · 2025Q313F
- Renaissance Technologies trimmed2025-11-13−941,200 shares · 2025Q313F
- Norges Bank (Norway SWF) exited2025-11-13−3,181,374 shares · 2025Q313F
- Ken Fisher (Fisher Asset Mgmt) trimmed2025-11-12−75,440 shares · 2025Q313F
- −57,800 shares · 2025Q313F
- Norges Bank (Norway SWF) added2025-11-12+152,432 shares · 2024Q313F
- Bill Smead (Smead Capital) trimmed2025-11-10−1,142,078 shares · 2025Q313F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Norges Bank (Norway SWF)+3,625,338$66.9M
Added to7
- Wellington Management+2,142,737$39.6M
- Ken Griffin (Citadel Advisors)+511,439$9.4M
- Ron Baron (Baron Capital / BAMCO)+376,392$6.9M
- Ken Fisher (Fisher Asset Mgmt)+18,408$340K
- AQR Capital Management+8,106$150K
- First Eagle Investment Management+1,900$35K
- T. Rowe Price+9,919$183
Trimmed2
- Izzy Englander (Millennium Mgmt)−1,409,368$26.0M
- Bill Smead (Smead Capital)−968,119$17.9M
Exited2
- Steve Cohen (Point72)−715,883$13.0M
- Renaissance Technologies−202,587$3.7M
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 15 | $33.27B |
| 2022Q2 | 16 | $17.57B |
| 2022Q3 | 16 | $16.5M |
| 2022Q4 | 17 | $663.2M |
| 2023Q1 | 14 | $652.6M |
| 2023Q2 | 15 | $593.9M |
| 2023Q3 | 15 | $738.7M |
| 2023Q4 | 15 | $1.06B |
| 2024Q1 | 17 | $1.17B |
| 2024Q2 | 18 | $1.09B |
| 2024Q3 | 16 | $609.5M |
| 2024Q4 | 14 | $638.8M |
| 2025Q1 | 12 | $601.4M |
| 2025Q2 | 13 | $562.5M |
| 2025Q3 | 13 | $558.7M |
| 2025Q4 | 12 | $625.6M |
Who owns MAC
12 super-investors · 2025Q4
Tracked stake
34.14M
shares
Combined value
$626M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Added9Trim2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Bill Smead Smead Capital | 13.96M | $258M |
| 2 | Ken Griffin Citadel Advisors | 4.43M | $82M |
| 3 | Wellington Management | 3.68M | $68M |
| 4 | Norges Bank Norway SWF | 3.63M | $67M |
| 5 | Ron Baron Baron Capital / BAMCO | 3.29M | $61M |
| 6 | Ken Fisher Fisher Asset Mgmt | 2.89M | $53M |
| 7 | Izzy Englander Millennium Mgmt | 1.67M | $31M |
| 8 | First Eagle Investment Management | 170.6K | $3M |
| 9 | AQR Capital Management | 64.8K | $1M |
| 10 | Ken Griffin Citadel Advisors | 57.5K | $1M |
| 11 | Ken Griffin Citadel Advisors | 56.7K | $1M |
| 12 | T. Rowe Price | 250.2K | $5K |
Recent moves
20 transactions
- +9,919 · 2025Q4
- +511,439 · 2025Q4
- +376,392 · 2025Q4
- +8,106 · 2025Q4
- −1,409,368 · 2025Q4
- +2,142,737 · 2025Q4
- −715,883 · 2025Q4
- −202,587 · 2025Q4
- +3,625,338 · 2025Q4
- +18,408 · 2025Q4
- −968,119 · 2025Q4
- +1,900 · 2025Q4
- −940,856 · 2025Q3
- +715,883 · 2025Q3
- +12,242 · 2025Q3
- +595,122 · 2025Q3
- +463,102 · 2025Q3
- +7,559 · 2025Q3
- −941,200 · 2025Q3
- −3,181,374 · 2025Q3
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