MICRON TECHNOLOGY INC (MU) Stock Institutional Trading Activity
MICRON TECHNOLOGY INC (MU) 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 Renaissance Technologies LLC, Appaloosa Management, Cullen Value Fund, Donald Smith & Co., and Parnassus Endeavor Fund. 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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- MICRON TECHNOLOGY INC (MU) stock institutional ownership
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| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q2 2016 | Parnassus Endeavor Fund | Buy | 2,281,433 | 27,924,543 | $384,242 |
| Q2 2016 | First Eagle U.S. Value | Sell | -2,475,505 | 205,000 | $2,821 |
| Q2 2016 | Arbiter Partners Capital Management | Sell | -672,500 | 762,500 | $10,492 |
| Q2 2016 | Renaissance Technologies LLC | Buy | 3,750,900 | 3,982,800 | $54,803 |
| Q1 2016 | Donald Smith & Co. | Buy | 498,493 | 14,620,639 | $153,078 |
| Q1 2016 | Parnassus Endeavor Fund | Buy | 23,613,110 | 25,643,110 | $268,483 |
| Q1 2016 | Renaissance Technologies LLC | Sell | -915,936 | 231,900 | $2,428 |
| Q1 2016 | Arbiter Partners Capital Management | Buy | 55,000 | 1,435,000 | $15,024 |
| Q4 2015 | Donald Smith & Co. | Sell | -45,862 | 14,122,146 | $199,970 |
| Q4 2015 | Parnassus Endeavor Fund | Buy | 2,030,000 | 2,030,000 | $28,745 |
| Q3 2015 | Donald Smith & Co. | Sell | -1,096,624 | 14,168,008 | $212,237 |
| Q3 2015 | Baupost Group | Sell | -18,706,035 | 1,000,000 | $14,980 |
| Q3 2015 | Arbiter Partners Capital Management | Buy | 667,500 | 1,380,000 | $20,672 |
| Q3 2015 | Greenlight Capital | Sell | -25,577,566 | 12,371,980 | $185,332 |
| Q2 2015 | Donald Smith & Co. | Sell | -44,614 | 15,264,632 | $287,586 |
| Q2 2015 | Arbiter Partners Capital Management | Buy | 712,500 | 712,500 | $13,424 |
| Q2 2015 | First Eagle U.S. Value | Buy | 617,735 | 2,680,505 | $50,501 |
| Q2 2015 | Greenlight Capital | Buy | 4,400,000 | 37,949,546 | $714,970 |
| Q1 2015 | Donald Smith & Co. | Sell | -331,348 | 15,309,246 | $415,340 |
| Q1 2015 | First Eagle U.S. Value | Buy | 543,770 | 2,062,770 | $55,963 |
| Q1 2015 | Viking Global Investors | Buy | 10,982,316 | 31,146,060 | $844,993 |
| Q1 2015 | Greenlight Capital | Buy | 2,293,576 | 33,549,546 | $910,199 |
| Q4 2014 | Donald Smith & Co. | Sell | -894,363 | 15,640,594 | $547,577 |
| Q4 2014 | Renaissance Technologies LLC | Buy | 654,000 | 1,147,836 | $40,186 |
| Q4 2014 | First Eagle U.S. Value | Sell | -1,781,530 | 1,519,000 | $53,180 |
| Q4 2014 | Baupost Group | Sell | -31,949,399 | 19,706,035 | $689,908 |
| Q4 2014 | Viking Global Investors | Sell | -402,903 | 20,163,744 | $705,933 |
| Q4 2014 | Greenlight Capital | Buy | 781,377 | 31,255,970 | $1,094,272 |
| Q3 2014 | Donald Smith & Co. | Sell | -2,156,402 | 16,534,957 | $566,488 |
| Q3 2014 | Renaissance Technologies LLC | Sell | -1,983,300 | 493,836 | $16,919 |
Frequently asked questions about MU activity
Which institutional owners are buying MU?
Institutional owners buying MU 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 MU activity?
"Buy" means an investor increased their reported position in MU compared to the prior reporting period. This reflects growing exposure to MICRON TECHNOLOGY INC (MU) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MU increasing?
Institutional interest in MU 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.