SAN DIEGO, CA
ATYR PHARMA INCATYR— Latest position per institution from SEC 13F filings
15
Institutional holders
67.97M
Total shares held
83.59M
Estimated value
3.40M
Avg. position size
FMR LLC
CIK 315066
Shares
14.71M
Value
11.47M
Filed
Mar 31, 2026
FEDERATED HERMES, INC.
CIK 1056288
Shares
10.51M
Value
8.20M
Filed
Mar 31, 2026
BLACKROCK, INC.
CIK 2012383
Shares
6.44M
Value
5.03M
Filed
Mar 31, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.96M
Value
3.89M
Filed
Dec 31, 2025
UBS GROUP AG
CIK 1610520
Shares
3.87M
Value
3.02M
Filed
Mar 31, 2026
OCTAGON CAPITAL ADVISORS LP
CIK 1839435
Shares
3.82M
Value
19.37M
Filed
Jun 30, 2025
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
3.81M
Value
2.97M
Filed
Mar 31, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
2.39M
Value
1.86M
Filed
Mar 31, 2026
AFFINITY ASSET ADVISORS, LLC
CIK 1773195
Shares
2.10M
Value
1.51M
Filed
Sep 30, 2025
STATE STREET CORP
CIK 93751
Shares
1.75M
Value
1.37M
Filed
Mar 31, 2026
SAMSARA BIOCAPITAL, LLC
CIK 1744967
Shares
1.75M
Value
3.67M
Filed
Mar 31, 2023
GSA CAPITAL PARTNERS LLP
CIK 1362033
Shares
1.68M
Value
1.31K
Filed
Mar 31, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
1.64M
Value
1.28M
Filed
Mar 31, 2026
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
1.41M
Value
7.16M
Filed
Jun 30, 2025
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.39M
Value
2.17M
Filed
Jun 30, 2024
MORGAN STANLEY
CIK 895421
Shares
1.23M
Value
955.87K
Filed
Mar 31, 2026
VENROCK ADVISER, LLC
CIK 1615982
Shares
1.17M
Value
2.57M
Filed
Dec 31, 2022
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.14M
Value
892.76K
Filed
Mar 31, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
1.13M
Value
883.23K
Filed
Mar 31, 2026
INTEGRAL HEALTH ASSET MANAGEMENT, LLC
CIK 1773206
Shares
1.05M
Value
5.32M
Filed
Jun 30, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FMR LLC | 315066 | 14.71M | 11.47M | Mar 31, 2026 |
| 2 | FEDERATED HERMES, INC. | 1056288 | 10.51M | 8.20M | Mar 31, 2026 |
| 3 | BLACKROCK, INC. | 2012383 | 6.44M | 5.03M | Mar 31, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 4.96M | 3.89M | Dec 31, 2025 |
| 5 | UBS GROUP AG | 1610520 | 3.87M | 3.02M | Mar 31, 2026 |
| 6 | OCTAGON CAPITAL ADVISORS LP | 1839435 | 3.82M | 19.37M | Jun 30, 2025 |
| 7 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.81M | 2.97M | Mar 31, 2026 |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 2.39M | 1.86M | Mar 31, 2026 |
| 9 | AFFINITY ASSET ADVISORS, LLC | 1773195 | 2.10M | 1.51M | Sep 30, 2025 |
| 10 | STATE STREET CORP | 93751 | 1.75M | 1.37M | Mar 31, 2026 |
| 11 | SAMSARA BIOCAPITAL, LLC | 1744967 | 1.75M | 3.67M | Mar 31, 2023 |
| 12 | GSA CAPITAL PARTNERS LLP | 1362033 | 1.68M | 1.31K | Mar 31, 2026 |
| 13 | MILLENNIUM MANAGEMENT LLC | 1273087 | 1.64M | 1.28M | Mar 31, 2026 |
| 14 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 1.41M | 7.16M | Jun 30, 2025 |
| 15 | BLACKROCK FINANCE, INC. | 1364742 | 1.39M | 2.17M | Jun 30, 2024 |
| 16 | MORGAN STANLEY | 895421 | 1.23M | 955.87K | Mar 31, 2026 |
| 17 | VENROCK ADVISER, LLC | 1615982 | 1.17M | 2.57M | Dec 31, 2022 |
| 18 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.14M | 892.76K | Mar 31, 2026 |
| 19 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 1.13M | 883.23K | Mar 31, 2026 |
| 20 | INTEGRAL HEALTH ASSET MANAGEMENT, LLC | 1773206 | 1.05M | 5.32M | Jun 30, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.