ATYR PHARMA INC (ATYR) Institutional Ownership Changes & 13F Activity

ATYR PHARMA INC (ATYR). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Fmr Llc, Ubs Group Ag, Aqr Capital Management Llc, Kalehua Capital Management Llc, and Jane Street Group, Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
State Street CorpSell-1,259,448-71.8%494,951$295.39KQ2 2026Sep 22, 2026
Citadel Advisors LlcBuy+1,194,695+2521.9%1,242,067$741.26KQ2 2026Sep 02, 2026
Kalehua Capital Management LlcBuy+1,788,167—1,788,167$1.07MQ2 2026Aug 19, 2026
Mercer Global Advisors IncBuy+38,326+252.1%53,531$31.95KQ2 2026Aug 19, 2026
Aqr Capital Management LlcBuy+2,114,530+426.3%2,610,548$1.56MQ2 2026Aug 14, 2026
Jane Street Group, LlcBuy+1,672,795+3448.9%1,721,297$1.03MQ2 2026Aug 14, 2026
Millennium Management LlcSell-985,195-60.0%656,051$391.53KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+357,972+126.4%641,208$382.67KQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+126,996—126,996$75.79KQ2 2026Aug 14, 2026
Hrt Financial LpBuy+126,681—126,681$75.00KQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-119,705-13.8%747,039$445.83KQ2 2026Aug 14, 2026
Xtx Topco LtdBuy+115,255+103.4%226,678$135.28KQ2 2026Aug 14, 2026
Two Sigma Investments, LpBuy+100,582+8.8%1,245,147$743.10KQ2 2026Aug 14, 2026
Bank Of America CorpSell-96,091-31.7%207,468$123.65KQ2 2026Aug 14, 2026
Schonfeld Strategic Advisors LlcBuy+50,880—50,880$30.36KQ2 2026Aug 14, 2026
Hsbc Holdings PlcBuy+47,971+263.4%66,185$38.36KQ2 2026Aug 14, 2026
Group One Trading LlcSell-45,136-24.5%138,878$82.88KQ2 2026Aug 14, 2026
Wells Fargo & Company/MnSell-40,040-86.0%6,500$3.88KQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+37,278—37,278$22.25KQ2 2026Aug 14, 2026
Cerity Partners LlcBuy+29,232—29,232$17.45KQ2 2026Aug 14, 2026
Barclays PlcSell-14,094-31.2%31,029$18.52KQ2 2026Aug 14, 2026
Balyasny Asset Management L.P.Buy+12,685+122.8%23,015$13.73KQ2 2026Aug 14, 2026
Royal Bank Of CanadaSell-5,150-46.2%5,996$3.00KQ2 2026Aug 14, 2026
Mai Capital ManagementBuy+3,342+24.7%16,846$10.05KQ2 2026Aug 14, 2026
Raymond James Financial IncBuy+200+1.2%16,801$10.03KQ2 2026Aug 14, 2026
Nfsg CorpSell-100-4.8%1,979$1.18KQ2 2026Aug 14, 2026
Ifg Advisory, LlcBuy+50—50$30.00Q2 2026Aug 14, 2026
Fmr LlcSell-12,235,425-83.2%2,471,418$1.47MQ2 2026Aug 13, 2026
Ubs Group AgSell-2,336,062-60.4%1,531,151$914.10KQ2 2026Aug 13, 2026
Northern Trust CorpSell-490,964-69.0%220,141$131.38KQ2 2026Aug 13, 2026
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Frequently asked questions about ATYR activity

  • Which institutional owners are buying ATYR?

    Institutional owners buying ATYR 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 ATYR activity?

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

  • Is institutional interest in ATYR increasing?

    Institutional interest in ATYR 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.