MAGNA INTERNATIONAL INC (MGA) Stock Institutional Trading Activity
MAGNA INTERNATIONAL INC (MGA) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Turtle Creek Asset Management, Renaissance Technologies LLC, Hancock Classic Value, Sequoia Financial Advisors, and ARK Invest. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
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- MAGNA INTERNATIONAL INC (MGA) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q1 2020 | Turtle Creek Asset Management | Buy | 580,000 | 2,015,900 | $64,348 |
| Q1 2020 | Renaissance Technologies LLC | Buy | 284,900 | 418,684 | $13,363 |
| Q4 2019 | Turtle Creek Asset Management | Sell | -27,650 | 1,435,900 | $78,745 |
| Q3 2019 | Turtle Creek Asset Management | Buy | 10,050 | 1,463,550 | $78,051 |
| Q3 2019 | Sequoia Financial Advisors | Sell | -1,300 | 4,000 | $213 |
| Q2 2019 | Turtle Creek Asset Management | Buy | 142,225 | 1,453,500 | $72,239 |
| Q1 2019 | Turtle Creek Asset Management | Sell | -11,250 | 1,311,275 | $63,846 |
| Q1 2019 | Sequoia Financial Advisors | Sell | -4,683 | 5,300 | $258 |
| Q1 2019 | Renaissance Technologies LLC | Buy | 5,584 | 133,784 | $6,514 |
| Q4 2018 | Turtle Creek Asset Management | Buy | 219,775 | 1,322,525 | $60,109 |
| Q4 2018 | Chou Associates Management | Buy | 20,000 | 20,000 | $909 |
| Q3 2018 | Turtle Creek Asset Management | Buy | 1,102,750 | 1,102,750 | $57,927 |
| Q2 2017 | Atlantic Investment Management | Sell | -148,546 | 173,356 | $8,032 |
| Q1 2017 | Atlantic Investment Management | Buy | 120,445 | 321,902 | $13,893 |
| Q4 2016 | Renaissance Technologies LLC | Buy | 93,216 | 128,200 | $5,557 |
| Q4 2016 | Atlantic Investment Management | Buy | 42,457 | 201,457 | $8,743 |
| Q3 2016 | Renaissance Technologies LLC | Sell | -737,300 | 34,984 | $1,502 |
| Q3 2016 | Atlantic Investment Management | Sell | -65,947 | 159,000 | $6,829 |
| Q2 2016 | Renaissance Technologies LLC | Buy | 216,000 | 772,284 | $27,077 |
| Q1 2016 | Atlantic Investment Management | Buy | 38,773 | 224,947 | $9,664 |
| Q4 2015 | Atlantic Investment Management | Sell | -57,536 | 186,174 | $7,551 |
| Q4 2015 | Renaissance Technologies LLC | Buy | 400,900 | 556,284 | $22,564 |
| Q3 2015 | Renaissance Technologies LLC | Sell | -174,200 | 155,384 | $7,460 |
| Q3 2015 | Atlantic Investment Management | Sell | -7,958 | 243,710 | $11,701 |
| Q2 2015 | Renaissance Technologies LLC | Sell | -317,700 | 329,584 | $18,487 |
| Q2 2015 | Atlantic Investment Management | Sell | -7,970 | 251,668 | $14,116,058 |
| Q1 2015 | Atlantic Investment Management | Buy | 259,638 | 259,638 | $13,932 |
| Q1 2015 | Renaissance Technologies LLC | Buy | 574,592 | 647,284 | $34,717 |
| Q4 2014 | Renaissance Technologies LLC | Sell | -50,800 | 72,692 | $7,881 |
| Q3 2014 | Renaissance Technologies LLC | Sell | -196,908 | 123,492 | $11,717 |
Frequently asked questions about MGA activity
Which institutional owners are buying MGA?
Institutional owners buying MGA 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 MGA activity?
"Buy" means an investor increased their reported position in MGA compared to the prior reporting period. This reflects growing exposure to MAGNA INTERNATIONAL INC (MGA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MGA increasing?
Institutional interest in MGA 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.