ATYR — what changed in the latest 10-Q
A section-by-section comparison of ATYR's newest periodic SEC filing (10-K/10-Q) against the prior same-form filing: paragraphs added and removed per section, with verbatim excerpts. Purely a deterministic text diff — no similarity scores, no directional read, not investment advice.
Comparing 10-Q · 2026-05-15 vs the prior 10-Q · 2025-11-06
| Section | Outcome | Added | Removed | Minor | Unchanged |
|---|---|---|---|---|---|
| MD&A | Text added/removed | +25 | −32 | ~14 | 18 |
| Controls & procedures | No paragraph-level changes | 0 | 0 | 0 | 3 |
| Legal proceedings | Text added/removed | +1 | −1 | 0 | 0 |
| Risk factors | Some risk factors updated | +104 | −95 | ~56 | 251 |
| Other information | Text added/removed | +24 | −1 | 0 | 0 |
Counts are paragraphs; added/removed means text added or removed vs the prior filing — no direction or judgement implied.
Not shown (absent or not faithfully extractable): Market risk (Item 3)
Representative excerpts
Up to 5 excerpts of about 300 characters per section, quoted verbatim from the two SEC filings.
MD&A
Text added vs the prior filing · source: 10-Q · 2026-05-15
treatment of pulmonary sarcoidosis and for the treatment of SSc-ILD. The European Commission has granted efzofitimod orphan drug designations for the treatment of sarcoidosis and for the treatment of SSc, based on the opinion of the European Medicines Agency (EMA) Committee for Orphan Medicinal Prod…
In September 2025, we announced top-line data from a global Phase 3 randomized, double-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of efzofitimod in patients with pulmonary sarcoidosis (the EFZO-FIT study). The EFZO-FIT study was a 52-week study in 268 patients with …
Based on feedback from the FDA, we plan to continue the development of efzofitimod in pulmonary sarcoidosis in a planned Phase 3 study in patients with chronic, symptomatic pulmonary sarcoidosis with restrictive lung disease utilizing FVC as the primary endpoint of the study and the KSQ-Lung score a…
As part of our discussion with the FDA regarding the benefit risk profile for efzofitimod, we plan to increase the frequency of dosing of 5.0 mg/kg efzofitimod or placebo from once every four weeks in past trials to once every three weeks in this next trial. We are choosing the dosing regimen based …
The Phase 3 trial is expected to be a global, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of efzofitimod in patients with moderate to severe pulmonary sarcoidosis. The 54-week study will consist of two parallel cohorts randomized equally to either 5.0 mg/kg…
Text removed vs the prior filing · source: 10-Q · 2025-11-06
(EMA) Committee for Orphan Medicinal Products (COMP). The Pharmaceutical and Medical Devices Agency (PMDA) has granted efzofitimod orphan drug designation for the treatment of sarcoidosis to Kyorin Pharmaceutical Co., Ltd. (Kyorin), our partner in Japan.
In September 2021, we announced positive results and clinical proof-of-concept from a double-blind, placebo-controlled Phase 1b/2a clinical trial in 37 patients with pulmonary sarcoidosis. The study was designed to evaluate the safety, tolerability, immunogenicity and preliminary efficacy of three d…
In September 2025, we announced top-line data from a global Phase 3 randomized, double-blind, placebo-controlled clinical trial to evaluate the efficacy and safety of efzofitimod in patients with pulmonary sarcoidosis (the EFZO-FIT study). The EFZO-FIT study was a 52-week study in 268 patients with …
In February 2024, we announced an Individual Patient Expanded Access Program (Individual Patient EAP). The Individual Patient EAP was initiated based on blinded EFZO-FIT study investigator and patient participant feedback. The program was designed to allow access for patients who completed the Phase…
We believe efzofitimod has potential applications in the treatment of other ILDs, such as chronic hypersensitivity pneumonitis (CHP) and connective tissue disease related ILD (CTD-ILD), including SSc-ILD and rheumatoid arthritis-associated ILD. As such, we designed a focused Phase 2 proof-of-concept…
Legal proceedings
Text added vs the prior filing · source: 10-Q · 2026-05-15
On October 9, 2025 and October 22, 2025, two substantially similar putative securities class action complaints were filed in the U.S. District Court for the Southern District of California, naming aTyr Pharma, Inc. and our Chief Executive Officer, Sanjay Shukla. The complaints assert that we and Mr.…
Text removed vs the prior filing · source: 10-Q · 2025-11-06
On October 9, 2025 and October 22, 2025, two substantially similar putative securities class action complaints were filed in the U.S. District Court for the Southern District of California, naming aTyr Pharma, Inc. and our Chief Executive Officer, Sanjay Shukla. The complaints allege certain violati…
Risk factors
Text added vs the prior filing · source: 10-Q · 2026-05-15
We will need to raise additional capital or enter into strategic partnering relationships to fund our operations;
We are a biotechnology company and have incurred significant losses since our inception and anticipate that we will continue to incur significant losses for the foreseeable future;
There is no established U.S. Food and Drug Administration (FDA) regulatory pathway for approval of a drug in pulmonary sarcoidosis. Our planned Phase 3 study for efzofitimod in pulmonary sarcoidosis may not be sufficient to support FDA approval and the FDA may require additional clinical trials whic…
We may encounter substantial delays and other challenges in our ongoing or planned clinical trials or we may fail to demonstrate safety and efficacy, such as our failure to meet the primary endpoint in the EFZO-FIT study, to the satisfaction of applicable regulatory authorities;
We have depended and may again in the future depend on collaborations with third parties for the development and commercialization of certain of our product candidates. If our collaborations are not successful, we may not be able to capitalize on the market potential of these product candidates;
Text removed vs the prior filing · source: 10-Q · 2025-11-06
There is no established FDA regulatory pathway for approval of a drug in pulmonary sarcoidosis. In addition, a Phase 3 clinical trial that does not meet its primary endpoint may not support an FDA regulatory pathway for approval. As a result, our Phase 3 randomized, double-blind, placebo-controlled …
We may encounter substantial delays and other challenges in our ongoing or planned clinical trials or we may fail to demonstrate safety and efficacy, such as the failure to meet the primary endpoint in the EFZO-FIT study, to the satisfaction of applicable regulatory authorities;
We will need to raise additional capital or enter into strategic partnering relationships to fund our operations;
We are a pre-commercial biotechnology company and have incurred significant losses since our inception and anticipate that we will continue to incur significant losses for the foreseeable future;
We depend on our existing collaborations and may depend on collaborations with additional third parties for the development and commercialization of certain of our product candidates. If our collaborations are not successful, we may not be able to capitalize on the market potential of these product …
Other information
Text added vs the prior filing · source: 10-Q · 2026-05-15
During the quarter ended March 31, 2026, no director or officer (as defined in Exchange Act Rule 16a-1(f)) adopted or terminated any "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement" as those terms are defined in Item 408 of Regulation S-K.
On May 12, 2026, we received notice of termination of the Kyorin Agreement with Kyorin. Kyorin elected to terminate the Kyorin Agreement without cause in accordance with the terms of the Kyorin Agreement, and the termination will become effective 90 days after the date of receipt of the notice of te…
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
In order to achieve a more equal balance of membership among the three classes of directors on our Board of Directors (the Board), the Board determined that one of its members should be reclassified from Class II (with a term expiring at our 2029 Annual Meeting of Stockholders) to Class I (with a te…
Accordingly, on May 11, 2026, Timothy P. Coughlin agreed to resign from the Board and his position as a Class II director subject to, and contingent upon, his immediate reappointment as a Class I director. Effective immediately following Mr. Coughlin’s resignation, the Board reappointed him as a Cla…
Text removed vs the prior filing · source: 10-Q · 2025-11-06
Our officers (as defined in Rule 16a-1(f) under the Exchange Act) have historically entered into sell-to-cover arrangements pursuant to Rule 10b5-1 authorizing the pre-arranged sale of shares to satisfy our tax withholding obligations arising exclusively from the vesting of time-vesting or performan…
How to read Risk Factors (Item 1A) in a 10-Q
A 10-Q risk-factor section usually takes one of three forms; this page classifies it as one of:
- Pointer — the filer states there have been no material changes and points back to the annual 10-K risk factors; there is no own risk text to compare this quarter.
- Partial update — the filer carves out specific updated risks ("except as set forth below"); the excerpts show exactly what is new this quarter.
- Restated in full — the quarter carries the complete risk-factor text. When the prior quarter was only a pointer there is no prior full text to diff against, so the page flags the section as restated instead.
This describes the filing structure only — it is never a judgement on whether risk went up or down.
Source: text-level diff of the two SEC EDGAR filings · deterministic (no AI-generated content) · for reference only · not investment advice