ORASURE TECHNOLOGIES INC (OSUR) Stock Institutional Trading Activity


ORASURE TECHNOLOGIES INC (OSUR) 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 and Causeway Capital Management. 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
Q3 2018Renaissance Technologies LLCSell-208,0963,866,207$59,733
Q1 2018Renaissance Technologies LLCBuy71,2034,074,303$68,815
Q4 2017Renaissance Technologies LLCSell-679,6034,003,100$75,498
Q3 2017Renaissance Technologies LLCSell-421,2004,682,703$105,361
Q2 2017Renaissance Technologies LLCSell-28,1005,103,903$88,093
Q1 2017Renaissance Technologies LLCBuy934,7005,132,003$66,357
Q4 2016Renaissance Technologies LLCBuy225,8004,197,303$36,852
Q3 2016Renaissance Technologies LLCBuy872,7003,971,503$31,653
Q2 2016Renaissance Technologies LLCBuy405,2003,098,803$18,314
Q1 2016Renaissance Technologies LLCBuy720,7002,693,603$19,475
Q4 2015Renaissance Technologies LLCBuy426,4071,972,903$12,705
Q3 2015Renaissance Technologies LLCBuy135,2961,546,496$6,866
Q2 2015Renaissance Technologies LLCBuy541,4001,411,200$7,606
Q1 2015Renaissance Technologies LLCBuy392,997869,800$5,688
Q4 2014Renaissance Technologies LLCSell-59,700476,803$4,835
Q3 2014Renaissance Technologies LLCBuy99,824536,503$3,874
Q2 2014Renaissance Technologies LLCBuy202,879436,679$3,760
Q1 2014Renaissance Technologies LLCSell-33,504233,800$1,863
Q4 2013Renaissance Technologies LLCSell-243,099267,304$1,681
Q3 2013Renaissance Technologies LLCSell-676,500510,403$3,068
Q2 2013Renaissance Technologies LLCBuy1,186,9031,186,903$4,605

Frequently asked questions about OSUR activity

  • Which institutional owners are buying OSUR?

    Institutional owners buying OSUR 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 OSUR activity?

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

  • Is institutional interest in OSUR increasing?

    Institutional interest in OSUR 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.