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 |
|---|---|---|---|---|---|
| Q1 2021 | Fairfax Financial Holdings | Sell | -15,000 | 685,000 | $60,431 |
| Q1 2021 | Dalal Street | Sell | -268,322 | 1,552,000 | $136,902 |
| Q1 2021 | Sequoia Fund | Buy | 5,325,143 | 5,325,143 | $469,731 |
| Q1 2021 | Baupost Group | Buy | 201,416 | 5,423,416 | $478,400 |
| Q1 2021 | Appaloosa Management | Sell | -725,000 | 7,275,000 | $641,728 |
| Q4 2020 | Donald Smith & Co. | Sell | -518,983 | 869,361 | $65,359 |
| Q4 2020 | Yacktman Asset Management | Buy | 16,068 | 708,487 | $53,264 |
| Q4 2020 | Parnassus Endeavor Fund | Sell | -1,109,842 | 12,559,290 | $944,207 |
| Q4 2020 | Aquamarine Capital | Buy | 80,000 | 200,000 | $15,036 |
| Q4 2020 | Viking Global Investors | Sell | -363,064 | 2,752,100 | $206,903 |
| Q4 2020 | Renaissance Technologies LLC | Buy | 2,909,100 | 3,355,036 | $252,232 |
| Q4 2020 | Appaloosa Management | Sell | -4,250,000 | 8,000,000 | $601,440 |
| Q3 2020 | Donald Smith & Co. | Sell | -283,820 | 1,388,344 | $65,197 |
| Q3 2020 | Yacktman Asset Management | Buy | 244,062 | 692,419 | $32,516 |
| Q3 2020 | Parnassus Endeavor Fund | Buy | 19,536 | 13,669,132 | $641,902 |
| Q3 2020 | Matrix Private Capital Group | Sell | -80 | 4,437 | $208 |
| Q3 2020 | Renaissance Technologies LLC | Sell | -147,800 | 445,936 | $20,941 |
| Q3 2020 | Dalal Street | Buy | 74 | 1,820,322 | $85,482 |
| Q3 2020 | Viking Global Investors | Sell | -277,581 | 3,115,164 | $146,288 |
| Q3 2020 | Baupost Group | Buy | 4,222,000 | 5,222,000 | $245,225 |
| Q3 2020 | Himalaya Capital Management | Buy | 1,567,100 | 11,476,523 | $538,938 |
| Q3 2020 | Appaloosa Management | Buy | 2,900,000 | 12,250,000 | $575,260 |
| Q2 2020 | Donald Smith & Co. | Sell | -197,798 | 1,672,164 | $86,150 |
| Q2 2020 | Yacktman Asset Management | Sell | -4,250 | 448,357 | $23,099 |
| Q2 2020 | Parnassus Endeavor Fund | Buy | 7,249,596 | 13,649,596 | $703,227 |
| Q2 2020 | Matrix Private Capital Group | Sell | -1,534 | 4,517 | $233 |
| Q2 2020 | Renaissance Technologies LLC | Sell | -55,800 | 593,736 | $30,589 |
| Q2 2020 | Dalal Street | Buy | 16,049 | 1,820,248 | $93,779 |
| Q2 2020 | Viking Global Investors | Sell | -3,318,924 | 3,392,745 | $174,794 |
| Q2 2020 | Appaloosa Management | Buy | 490,000 | 9,350,000 | $481,712 |
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.