MAC (MAC) Institutional Ownership Changes & 13F Activity
MAC (MAC) institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include First Eagle U.S. Value, Renaissance Technologies LLC, Dodge & Cox Stock Fund, Third Avenue Management, and Third Point.
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2022 | Renaissance Technologies LLC | Buy | 531,650 | 1,842,987 | $28,824 |
| Q1 2022 | First Eagle U.S. Value | Buy | 42,728 | 58,295 | $912 |
| Q4 2021 | Renaissance Technologies LLC | Buy | 1,295,637 | 1,311,337 | $22,660 |
| Q4 2021 | First Eagle U.S. Value | Buy | 8,500 | 15,567 | $269 |
| Q3 2021 | Renaissance Technologies LLC | Sell | -1,530,987 | 15,700 | $262 |
| Q3 2021 | First Eagle U.S. Value | Buy | 5,000 | 7,067 | $118 |
| Q2 2021 | First Eagle U.S. Value | Buy | 2,067 | 2,067 | $38 |
| Q1 2021 | Renaissance Technologies LLC | Buy | 601,513 | 1,546,687 | $18,096 |
| Q1 2021 | Third Avenue Management | Sell | -228,742 | 164,679 | $1,927 |
| Q4 2020 | Third Avenue Management | Buy | 18,449 | 393,421 | $4,198 |
| Q3 2020 | Renaissance Technologies LLC | Sell | -1,202,180 | 945,174 | $6,418 |
| Q2 2020 | Renaissance Technologies LLC | Buy | 629,435 | 2,147,354 | $19,262 |
| Q2 2020 | Third Avenue Management | Buy | 18,411 | 374,972 | $3,364 |
| Q1 2020 | Third Avenue Management | Sell | -1,020,389 | 356,561 | $2,008 |
| Q1 2020 | Renaissance Technologies LLC | Buy | 880,500 | 1,517,919 | $8,546 |
| Q4 2019 | Renaissance Technologies LLC | Buy | 332,269 | 637,419 | $17,159 |
| Q4 2019 | Third Avenue Management | Buy | 259,115 | 1,376,950 | $37,068 |
| Q3 2019 | Renaissance Technologies LLC | Sell | -1,372,719 | 305,150 | $9,640 |
| Q3 2019 | Third Avenue Management | Sell | -305,689 | 1,117,835 | $35,313 |
| Q2 2019 | Renaissance Technologies LLC | Buy | 496,600 | 1,677,869 | $56,192 |
| Q2 2019 | Third Avenue Management | Buy | 20,402 | 1,423,524 | $47,674 |
| Q1 2019 | Renaissance Technologies LLC | Buy | 909,619 | 1,181,269 | $51,208 |
| Q1 2019 | Third Avenue Management | Sell | -120,766 | 1,403,122 | $57,178 |
| Q4 2018 | Renaissance Technologies LLC | Sell | -217,269 | 271,650 | $11,757 |
| Q4 2018 | Third Avenue Management | Sell | -61,628 | 1,523,888 | $65,954 |
| Q3 2018 | Renaissance Technologies LLC | Buy | 425,400 | 488,919 | $27,032 |
| Q3 2018 | Third Avenue Management | Buy | 4,742 | 1,585,516 | $87,664 |
| Q2 2018 | Third Avenue Management | Buy | 363,613 | 1,580,774 | $89,836 |
| Q1 2018 | Third Avenue Management | Buy | 367,332 | 1,217,161 | $68,186 |
| Q4 2017 | Third Point | Sell | -301,000 | 1,425,000 | $93,594 |
Frequently asked questions about MAC activity
Which institutional owners are buying MAC?
Institutional owners buying MAC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MAC activity?
"Buy" means an investor increased their reported position in MAC compared to the prior reporting period. This reflects growing exposure to MAC rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MAC increasing?
Institutional interest in MAC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.