ATYR — ATYR PHARMA INC

Ownership history in TWO SIGMA SECURITIES, LLC  ·  5 quarters on record

This page tracks every 13F SEC filing in which TWO SIGMA SECURITIES, LLC reported a position in ATYR PHARMA INC (ATYR). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
0.01% (2025 Q1)
Avg. % of fund
0.0%
First filed
2023 Q2
Last filed
2025 Q4
Quarters held
5
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 ADDED 39,006 +27,071 +226.8% 0.00% $31K $0.78
2025 Q1 REDUCED 11,935 -1,057 -8.1% 0.01% $36K $3.02
2024 Q3 REDUCED 12,992 -4,495 -25.7% 0.00% $23K $1.76
2024 Q1 ADDED 17,487 +5,486 +45.7% 0.00% $34K $1.95
2023 Q2 INITIATED 12,001 — — 0.00% $26K $2.16
% of Fund (quarterly)    ATYR price (monthly, adj. close)

Other funds also holding ATYR

As of 2025 Q4 — sorted by position size

Rosalind Advisors, Inc. 4.78% GSA CAPITAL PARTNERS LLP 3Y 7Y 0.18% Tikvah Management LLC 3Y 7Y 0.1% FEDERATED HERMES, INC. 3Y 7Y 0.01% Dauntless Investment Group, LLC 0.01% ADAR1 Capital Management, LLC 0.0% Virtu Financial LLC 3Y 7Y 0.0% KINGSWOOD WEALTH ADVISORS, LLC 0.0% XTX Topco Ltd 3Y 0.0% TWO SIGMA ADVISERS, LP 3Y 7Y 0.0%
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