aTyr Pharma, Inc.
DE ˙ DB ˙ US0021202025
0,39 € 0,00 (0,00%)
2026-06-04
AKTIENPREIS
SecurityDE:471A / aTyr Pharma, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,225,467 shares
Latest Disclosed Value $ 955,865
Morgan Stanley reports 12.65% decrease in ownership of 471A / aTyr Pharma, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,225,467 shares of aTyr Pharma, Inc. (DE:471A) valued at $661,752 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,403,009 shares of aTyr Pharma, Inc.. This represents a change in shares of -12.65% during the quarter. The current value of the position is $474,256 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F ATYR PHARMA COM NEW 002120202 1,225,467 -177,542 -12.65 956 -13.02 0.0001
2026-05-27 2025-12-31 13F/A-1 ATYR PHARMA COM NEW 002120202 1,403,009 692,668 97.51 1,099 114.45 0.0001
2026-02-13 2025-12-31 13F ATYR PHARMA COM NEW 002120202 1,403,009 692,668 1,099 0.0001
2026-05-27 2025-09-30 13F/A-1 ATYR PHARMA COM NEW 002120202 710,341 450,375 173.24 512 -61.15 0.0000
2025-11-14 2025-09-30 13F ATYR PHARMA COM NEW 002120202 710,341 450,375 512 0.0000
2025-08-15 2025-06-30 13F ATYR PHARMA COM NEW 002120202 259,966 -2,713 -1.03 1,318 66.20 0.0001
2025-05-15 2025-03-31 13F ATYR PHARMA COM NEW 002120202 262,679 221,466 537.37 793 432.21 0.0001
2025-05-15 2024-12-31 13F/A-1 ATYR PHARMA COM NEW 002120202 41,213 41,212 4,121,200.00 149 0.0000
2025-02-14 2024-12-31 13F ATYR PHARMA COM NEW 002120202 41,213 41,212 149 0.0000
2025-05-14 2024-09-30 13F/A-2 ATYR PHARMA COM NEW 002120202 1 0 0.00 0 0.0000
2025-02-14 2024-09-30 13F/A-1 ATYR PHARMA COM NEW 002120202 1 0 0 0.0000
2024-11-14 2024-09-30 13F ATYR PHARMA COM NEW 002120202 1 0 0 0.0000
2025-05-14 2024-06-30 13F/A-2 ATYR PHARMA COM NEW 002120202 1 -19,717 -99.99 0 -100.00 0.0000
2024-10-17 2024-06-30 13F/A-1 ATYR PHARMA COM NEW 002120202 1 -19,717 0 0.0000
2024-08-14 2024-06-30 13F ATYR PHARMA COM NEW 002120202 1 -19,717 0 0.0000
2024-10-17 2024-03-31 13F/A-2 ATYR PHARMA COM NEW 002120202 19,718 3,795 23.83 38 72.73 0.0000
2024-08-16 2024-03-31 13F/A-1 ATYR PHARMA COM NEW 002120202 19,718 3,795 38 0.0000
2024-05-15 2024-03-31 13F ATYR PHARMA COM NEW 002120202 19,718 3,795 38 0.0000
2024-08-16 2023-12-31 13F/A-1 ATYR PHARMA COM NEW 002120202 15,923 13,519 562.35 22 633.33 0.0000
2024-02-13 2023-12-31 13F ATYR PHARMA COM NEW 002120202 15,923 13,519 22 0.0000
2023-11-15 2023-09-30 13F ATYR PHARMA COM NEW 002120202 2,404 -51 -2.08 4 -40.00 0.0000
2023-08-14 2023-06-30 13F ATYR PHARMA COM NEW 002120202 2,455 171 7.49 5 25.00 0.0000
2023-05-15 2023-03-31 13F ATYR PHARMA COM NEW 002120202 2,284 2,284 5 0.0000
2022-10-27 2022-06-30 13F/A-1 ATYR PHARMA COM NEW 002120202 0 -72 -100.00 0 0.0000
2022-08-15 2022-06-30 13F ATYR PHARMA COM NEW 002120202 0 -72 0 0.0000
2022-10-27 2022-03-31 13F/A-1 ATYR PHARMA COM NEW 002120202 72 -20,393 -99.65 0 -100.00
2022-05-13 2022-03-31 13F ATYR PHARMA COM NEW 002120202 72 -20,393 0
2022-02-14 2021-12-31 13F ATYR PHARMA COM NEW 002120202 20,465 20,465 153 0.0000
2021-02-16 2020-12-31 13F ATYR PHARMA COM NEW 002120202 0 -1,311 -100.00 0 -100.00
2020-11-13 2020-09-30 13F ATYR PHARMA COM NEW 002120202 1,311 -2,433 -64.98 4 -76.47 0.0000
2020-08-14 2020-06-30 13F ATYR PHARMA COM NEW 002120202 3,744 3,744 17 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.