SAN DIEGO, CA
ATYR PHARMA INCATYR— Latest position per institution from SEC 13F filings
15
Institutional holders
49.84M
Total shares held
58.12M
Estimated value
2.49M
Avg. position size
FEDERATED HERMES, INC.
CIK 1056288
Shares
8.51M
Value
5.08M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
4.96M
Value
3.89M
Filed
Dec 31, 2025
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
2.27M
Filed
Jun 30, 2026
GSA CAPITAL PARTNERS LLP
CIK 1362033
Shares
3.45M
Value
2.06K
Filed
Jun 30, 2026
AQR CAPITAL MANAGEMENT LLC
CIK 1167557
Shares
2.61M
Value
1.56M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
2.47M
Value
1.47M
Filed
Jun 30, 2026
AFFINITY ASSET ADVISORS, LLC
CIK 1773195
Shares
2.10M
Value
1.51M
Filed
Sep 30, 2025
JANE STREET GROUP, LLC
CIK 1595888
Shares
1.91M
Value
1.14M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
1.83M
Value
1.09M
Filed
Jun 30, 2026
KALEHUA CAPITAL MANAGEMENT LLC
CIK 2106181
Shares
1.79M
Value
1.07M
Filed
Jun 30, 2026
SAMSARA BIOCAPITAL, LLC
CIK 1744967
Shares
1.75M
Value
3.67M
Filed
Mar 31, 2023
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.55M
Value
924K
Filed
Jun 30, 2026
UBS GROUP AG
CIK 1610520
Shares
1.53M
Value
914.10K
Filed
Jun 30, 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
1.34M
Value
801.88K
Filed
Jun 30, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.25M
Value
743.10K
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
1.18M
Value
702.73K
Filed
Jun 30, 2026
VENROCK ADVISER, LLC
CIK 1615982
Shares
1.17M
Value
2.57M
Filed
Dec 31, 2022
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | FEDERATED HERMES, INC. | 1056288 | 8.51M | 5.08M | Jun 30, 2026 |
| 2 | VANGUARD GROUP INC | 102909 | 4.96M | 3.89M | Dec 31, 2025 |
| 3 | OCTAGON CAPITAL ADVISORS LP | 1839435 | 3.82M | 19.37M | Jun 30, 2025 |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 3.81M | 2.27M | Jun 30, 2026 |
| 5 | GSA CAPITAL PARTNERS LLP | 1362033 | 3.45M | 2.06K | Jun 30, 2026 |
| 6 | AQR CAPITAL MANAGEMENT LLC | 1167557 | 2.61M | 1.56M | Jun 30, 2026 |
| 7 | FMR LLC | 315066 | 2.47M | 1.47M | Jun 30, 2026 |
| 8 | AFFINITY ASSET ADVISORS, LLC | 1773195 | 2.10M | 1.51M | Sep 30, 2025 |
| 9 | JANE STREET GROUP, LLC | 1595888 | 1.91M | 1.14M | Jun 30, 2026 |
| 10 | BLACKROCK, INC. | 2012383 | 1.83M | 1.09M | Jun 30, 2026 |
| 11 | KALEHUA CAPITAL MANAGEMENT LLC | 2106181 | 1.79M | 1.07M | Jun 30, 2026 |
| 12 | SAMSARA BIOCAPITAL, LLC | 1744967 | 1.75M | 3.67M | Mar 31, 2023 |
| 13 | CITADEL ADVISORS LLC | 1423053 | 1.55M | 924K | Jun 30, 2026 |
| 14 | UBS GROUP AG | 1610520 | 1.53M | 914.10K | Jun 30, 2026 |
| 15 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 1.41M | 7.16M | Jun 30, 2025 |
| 16 | BLACKROCK FINANCE, INC. | 1364742 | 1.39M | 2.17M | Jun 30, 2024 |
| 17 | MORGAN STANLEY | 895421 | 1.34M | 801.88K | Jun 30, 2026 |
| 18 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.25M | 743.10K | Jun 30, 2026 |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 1.18M | 702.73K | Jun 30, 2026 |
| 20 | VENROCK ADVISER, LLC | 1615982 | 1.17M | 2.57M | Dec 31, 2022 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.