BIO-TECHNE CORP (TECH) Stock Institutional Trading Activity
BIO-TECHNE CORP (TECH) 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 Durable Capital Partners, Mairs & Power Growth Fund, Sequoia Fund, Sequoia Financial Advisors, and Renaissance Technologies LLC. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
Explore more:
- BIO-TECHNE CORP (TECH) stock institutional ownership
- BIO-TECHNE CORP (TECH) stock insider trading activity
- Stock rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2017 | Mairs & Power Growth Fund | Sell | -9,923 | 1,434,557 | $185,847 |
| Q4 2017 | Renaissance Technologies LLC | Buy | 111,300 | 356,000 | $46,120 |
| Q3 2017 | Mairs & Power Growth Fund | Sell | -4,507 | 1,444,480 | $174,623 |
| Q3 2017 | Renaissance Technologies LLC | Buy | 97,600 | 244,700 | $29,582 |
| Q2 2017 | Mairs & Power Growth Fund | Buy | 59,137 | 1,448,987 | $170,256 |
| Q2 2017 | Renaissance Technologies LLC | Sell | -41,500 | 147,100 | $17,284 |
| Q1 2017 | Mairs & Power Growth Fund | Buy | 21,200 | 1,389,850 | $141,278 |
| Q1 2017 | Renaissance Technologies LLC | Buy | 7,100 | 188,600 | $19,171 |
| Q4 2016 | Mairs & Power Growth Fund | Buy | 1,551 | 1,368,650 | $140,738 |
| Q4 2016 | Renaissance Technologies LLC | Buy | 38,000 | 181,500 | $18,664 |
| Q3 2016 | Mairs & Power Growth Fund | Buy | 15,835 | 1,367,099 | $149,697 |
| Q3 2016 | Renaissance Technologies LLC | Buy | 103,700 | 143,500 | $15,713 |
| Q2 2016 | Mairs & Power Growth Fund | Buy | 40,690 | 1,351,264 | $152,382 |
| Q2 2016 | Renaissance Technologies LLC | Sell | -64,300 | 39,800 | $4,488 |
| Q1 2016 | Mairs & Power Growth Fund | Buy | 3,689 | 1,310,574 | $123,875 |
| Q1 2016 | Renaissance Technologies LLC | Sell | -55,700 | 104,100 | $9,840 |
| Q4 2015 | Mairs & Power Growth Fund | Buy | 13,361 | 1,306,885 | $117,620 |
| Q4 2015 | Renaissance Technologies LLC | Sell | -85,600 | 159,800 | $14,382 |
| Q3 2015 | Mairs & Power Growth Fund | Sell | -83,918 | 1,293,524 | $119,599 |
| Q3 2015 | Renaissance Technologies LLC | Buy | 50,000 | 245,400 | $22,690 |
| Q2 2015 | Mairs & Power Growth Fund | Sell | -2,245 | 1,377,442 | $135,637 |
| Q2 2015 | Renaissance Technologies LLC | Sell | -85,700 | 195,400 | $19,241 |
| Q1 2015 | Mairs & Power Growth Fund | Buy | 84,267 | 1,379,687 | $138,369 |
| Q1 2015 | Renaissance Technologies LLC | Sell | -245,600 | 281,100 | $28,192 |
| Q4 2014 | Mairs & Power Growth Fund | Buy | 205,398 | 1,295,420 | $119,697 |
| Q4 2014 | Renaissance Technologies LLC | Buy | 526,700 | 526,700 | $48,667 |
| Q3 2014 | Mairs & Power Growth Fund | Buy | 1,090,022 | 1,090,022 | $101,972 |
Frequently asked questions about TECH activity
Which institutional owners are buying TECH?
Institutional owners buying TECH 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 TECH activity?
"Buy" means an investor increased their reported position in TECH compared to the prior reporting period. This reflects growing exposure to BIO-TECHNE CORP (TECH) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in TECH increasing?
Institutional interest in TECH 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.