RADNET INC (RDNT) Stock Institutional Trading Activity


RADNET INC (RDNT) 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 Mairs & Power Growth Fund, First Eagle U.S. Value, 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.

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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2022First Eagle U.S. ValueBuy38,62962,629$1,401
Q1 2022Renaissance Technologies LLCSell-141,800736,770$16,482
Q4 2021First Eagle U.S. ValueBuy24,00024,000$723
Q4 2021Renaissance Technologies LLCSell-221,800878,570$26,454
Q3 2021Renaissance Technologies LLCSell-107,2001,100,370$32,252
Q2 2021Renaissance Technologies LLCSell-100,5001,207,570$40,683
Q1 2021Renaissance Technologies LLCSell-130,4001,308,070$28,451
Q4 2020Renaissance Technologies LLCSell-44,8001,438,470$28,151
Q3 2020Renaissance Technologies LLCSell-84,8001,483,270$22,768
Q2 2020Renaissance Technologies LLCSell-248,4001,568,070$24,885
Q1 2020Renaissance Technologies LLCBuy50,4001,816,470$19,091
Q4 2019Renaissance Technologies LLCSell-62,5331,766,070$35,851
Q3 2019Renaissance Technologies LLCBuy183,9001,828,603$26,259
Q2 2019Renaissance Technologies LLCSell-203,3001,644,703$22,680
Q1 2019Renaissance Technologies LLCBuy3,9001,848,003$22,897
Q4 2018Renaissance Technologies LLCSell-330,9131,844,103$18,755
Q3 2018Renaissance Technologies LLCBuy173,5162,175,016$32,734
Q1 2018Renaissance Technologies LLCBuy597,0562,001,500$28,822
Q4 2017Renaissance Technologies LLCBuy223,7401,404,444$14,185
Q3 2017Renaissance Technologies LLCBuy453,3041,180,704$13,637
Q2 2017Renaissance Technologies LLCBuy219,900727,400$5,637
Q1 2017Renaissance Technologies LLCSell-62,601507,500$2,994
Q4 2016Renaissance Technologies LLCBuy135,701570,101$3,677
Q3 2016Renaissance Technologies LLCBuy140,700434,400$3,215
Q2 2016Renaissance Technologies LLCBuy85,000293,700$1,568
Q1 2016Renaissance Technologies LLCBuy27,300208,700$1,008
Q4 2015Renaissance Technologies LLCSell-31,300181,400$1,121
Q3 2015Renaissance Technologies LLCSell-84,000212,700$1,180
Q2 2015Renaissance Technologies LLCSell-25,100296,700$1,985
Q1 2015Renaissance Technologies LLCSell-15,400321,800$2,703

Frequently asked questions about RDNT activity

  • Which institutional owners are buying RDNT?

    Institutional owners buying RDNT 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 RDNT activity?

    "Buy" means an investor increased their reported position in RDNT compared to the prior reporting period. This reflects growing exposure to RADNET INC (RDNT) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in RDNT increasing?

    Institutional interest in RDNT 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.