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aTYR PHARMA INC

ATYR
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001339970

No open-market purchases or sales by aTYR PHARMA INC insiders were filed in the last 90 days; 89 institutions reported holding it in 13F filings for Q2 2026, worth $23.2M in total; no superinvestor holds it.

Q4 2021 vs. Q3 2021

How the institutions holding aTYR PHARMA INC changed between Q3 2021 and Q4 2021.

All holders in Q4 2021All holders in Q3 2021

13F holders of ATYR: Q3 2021 compared with Q4 2021
MeasureQ3 2021Of which not filed for Q4 2021Q4 2021Change
Holders42147+6
Shares19.0M130.6K20.6M+1.73M (+9.2%)
Value$172.1M$1.19M$153.5M−$17.4M (−10.2%)

1 institution that held it in Q3 2021 haven't filed for Q4 2021 yet. Not filing isn't selling, so the changes leave them out.

New holders (17)

Institutions that held aTYR PHARMA INC at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to ATYR in Q4 2021
InstitutionSharesValue% of portfolio
Tikvah Management LLC1,225,833$9.16M2.55%
Deep Track Capital, LP1,100,000$8.22M0.61%
Gsa Capital Partners LLP58,791$439.0K0.06%
Raymond James & Associates24,584$184.0K0.00%
Nan Fung Group Holdings Ltd23,500$176.0K0.05%
Morgan Stanley20,465$153.0K0.00%
Goldman Sachs Group Inc18,512$138.0K0.00%
Trexquant Investment LP18,106$135.0K0.01%
Ameriprise Financial Inc16,700$125.0K0.00%
Jump Financial, LLC16,100$120.0K0.01%
Blueshift Asset Management, LLC12,729$95.0K0.01%
Qube Research & Technologies Ltd11,665$87.0K0.00%
Charles Schwab Investment Management Inc10,000$75.0K0.00%
UBS Group AG1,132$8.00K0.00%
Royal Bank of Canada500$4.00K0.00%
PFS Partners, LLC406$3.03K0.00%
RE Dickinson Investment Advisors, LLC300$2.00K0.00%

Sold out (11)

Institutions that held aTYR PHARMA INC at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of ATYR in Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Virtu Financial LLC143,677$1.30M
Jane Street Group, LLC136,901$1.24M
Susquehanna International Group, LLP81,781$743.0K
Boothbay Fund Management, LLC56,329$511.0K
Price T Rowe Associates Inc12,024$109.0K
Sheaff Brock Investment Advisors, LLC11,000$100.0K
Group One Trading, L.P.2,022$18.0K
Bank of America Corp382$3.00K
Carmichael Hill & Associates, Inc.300$3.00K
Ironwood Financial, llc50$0
Advisor Group Holdings, Inc.1$0

Not filed for Q4 2021 yet (1)

Institutions that held aTYR PHARMA INC at the end of Q3 2021 and haven't filed a 13F for Q4 2021. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ATYR in Q3 2021 that haven't filed for Q4 2021
InstitutionShares, Q3 2021Value, Q3 2021
Polaris Venture Management Co. V, L.L.C.130,572$1.19M