ALECTOR INC (ALEC) Institutional Ownership Changes & 13F Activity

ALECTOR INC (ALEC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCSell-255,9591,287,691$2,768,536
Q4 2025Renaissance Technologies LLCBuy594,5001,543,650$2,408,094
Q3 2025Renaissance Technologies LLCSell-305,700949,150$2,809,484
Q2 2025Renaissance Technologies LLCBuy220,9951,254,850$1,756,790
Q1 2025Renaissance Technologies LLCBuy118,1171,033,855$1,271,642
Q4 2024Renaissance Technologies LLCBuy353,988915,738$1,730,745
Q3 2024Renaissance Technologies LLCSell-93,300561,750$2,617,755
Q2 2024Renaissance Technologies LLCSell-20,433655,050$2,973,927
Q1 2024Renaissance Technologies LLCBuy103,500675,483$4,066
Q4 2023Renaissance Technologies LLCBuy69,780571,983$4,564
Q3 2023Renaissance Technologies LLCSell-184,880502,203$3,254
Q2 2023Renaissance Technologies LLCBuy37,122687,083$4,129
Q1 2023Renaissance Technologies LLCBuy58,149649,961$4,023
Q4 2022Renaissance Technologies LLCSell-128,771591,812$5,462
Q3 2022Renaissance Technologies LLCSell-246,000720,583$6,817
Q2 2022Renaissance Technologies LLCBuy260,803966,583$9,820
Q1 2022Renaissance Technologies LLCBuy432,300705,780$10,057
Q4 2021Renaissance Technologies LLCBuy203,700273,480$5,647
Q2 2020Renaissance Technologies LLCBuy69,78069,780$1,705

Frequently asked questions about ALEC activity

  • Which institutional owners are buying ALEC?

    Institutional owners buying ALEC 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 ALEC activity?

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

  • Is institutional interest in ALEC increasing?

    Institutional interest in ALEC 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.

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