(MCRB) Stock Institutional Trading Activity


(MCRB) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2023), investors with some of the largest reported share count changes include Renaissance Technologies LLC 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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Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q2 2018ARK InvestBuy859,7053,266,428$28,091
Q1 2018Renaissance Technologies LLCSell-33,400877,800$6,443
Q1 2018ARK InvestBuy781,2222,406,723$17,665
Q4 2017Renaissance Technologies LLCBuy298,300911,200$9,240
Q4 2017ARK InvestBuy732,5791,625,501$16,483
Q3 2017Renaissance Technologies LLCBuy152,600612,900$9,831
Q3 2017ARK InvestBuy127,731892,922$14,322
Q2 2017Renaissance Technologies LLCBuy109,500460,300$5,201
Q2 2017ARK InvestBuy135,276765,191$8,647
Q1 2017Renaissance Technologies LLCSell-49,500350,800$3,954
Q1 2017ARK InvestBuy137,851629,915$7,099
Q4 2016Renaissance Technologies LLCBuy103,800400,300$3,963
Q4 2016ARK InvestBuy492,064492,064$4,871
Q3 2016Renaissance Technologies LLCBuy285,600296,500$3,644
Q3 2015Renaissance Technologies LLCBuy10,90010,900$323

Frequently asked questions about MCRB activity

  • Which institutional owners are buying MCRB?

    Institutional owners buying MCRB 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 MCRB activity?

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

  • Is institutional interest in MCRB increasing?

    Institutional interest in MCRB 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.