UBS Group AG
· Added
+$1.9M
Change
+2.2M
Date
Q1 2026
AT
| Investor | Type | Est. change | Change | Δ Own | Date | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
UBS Group AG
· Added
+$1.9M
Change
+2.2M
Date
Q1 2026
|
UBS Group AG | Added· Q1 2026 | +$1.9M | +2.2M | – | Q1 2026 | |||||
|
Millennium Management LLC
· New
+$1.4M
Change
+1.6M
Date
Q1 2026
|
Millennium Management LLC | New· Q1 2026 | +$1.4M | +1.6M | – | Q1 2026 | |||||
|
Rosalind Advisors, Inc.
· Exited
−$877K
Change
−1.0M
Δ Own
−100.0%
Date
Q1 2026
|
Rosalind Advisors, Inc. | Exited· Q1 2026 | −$877K | −1.0M | −100.0% | Q1 2026 | |||||
|
Gsa Capital Partners LLP
· Reduced
−$799K
Change
−946K
Date
Q1 2026
|
Gsa Capital Partners LLP | Reduced· Q1 2026 | −$799K | −946K | – | Q1 2026 | |||||
|
Two Sigma Advisers, LP
· Exited
−$710K
Change
−841K
Δ Own
−100.0%
Date
Q1 2026
|
Two Sigma Advisers, LP | Exited· Q1 2026 | −$710K | −841K | −100.0% | Q1 2026 | |||||
|
Two Sigma Investments, LP
· Added
+$583K
Change
+690K
Δ Own
+151.9%
Date
Q1 2026
|
Two Sigma Investments, LP | Added· Q1 2026 | +$583K | +690K | +151.9% | Q1 2026 | |||||
|
Tikvah Management LLC
· Exited
−$389K
Change
−461K
Δ Own
−100.0%
Date
Q1 2026
|
Tikvah Management LLC | Exited· Q1 2026 | −$389K | −461K | −100.0% | Q1 2026 | |||||
|
AQR Capital Management LLC
· Reduced
−$231K
Change
−274K
Date
Q1 2026
|
AQR Capital Management LLC | Reduced· Q1 2026 | −$231K | −274K | – | Q1 2026 | |||||
|
Morgan Stanley
· Reduced
−$150K
Change
−178K
Date
Q1 2026
|
Morgan Stanley | Reduced· Q1 2026 | −$150K | −178K | – | Q1 2026 | |||||
|
Bank of America Corp
· Added
+$149K
Change
+177K
Date
Q1 2026
|
Bank of America Corp | Added· Q1 2026 | +$149K | +177K | – | Q1 2026 | |||||
|
Jane Street Group, LLC
· Reduced
−$118K
Change
−140K
Date
Q1 2026
|
Jane Street Group, LLC | Reduced· Q1 2026 | −$118K | −140K | – | Q1 2026 | |||||
|
Marshall Wace, LLP
· New
+$117K
Change
+138K
Date
Q1 2026
|
Marshall Wace, LLP | New· Q1 2026 | +$117K | +138K | – | Q1 2026 | |||||
|
Barclays PLC
· Reduced
−$109K
Change
−129K
Date
Q1 2026
|
Barclays PLC | Reduced· Q1 2026 | −$109K | −129K | – | Q1 2026 | |||||
|
Vanguard
· Added
+$102K
Change
+121K
Date
Q1 2026
|
Vanguard | Added· Q1 2026 | +$102K | +121K | – | Q1 2026 | |||||
|
BlackRock
· Reduced
−$89K
Change
−106K
Date
Q1 2026
|
BlackRock | Reduced· Q1 2026 | −$89K | −106K | – | Q1 2026 | |||||
| Insider | Title | Type | Price | Qty | Value | Owned | ΔOwn | Trade date | Filed date | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Schimmel Paul
· Director
Buy
+$50K
|
Schimmel Paul | Director | Buy | $0.50 | +100K | +$50K | 779K | – | May 27, 2026 | May 28, 2026 | |||||||||
|
Coughlin Timothy
· Director
Grant (A)
50K
|
Coughlin Timothy | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Benevich Eric
· Director
Grant (A)
50K
|
Benevich Eric | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Gross Jane A.
· Director
Grant (A)
50K
|
Gross Jane A. | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Lucas Svetlana
· Director
Grant (A)
50K
|
Lucas Svetlana | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Zaknoen Sara
· Director
Grant (A)
50K
|
Zaknoen Sara | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Schimmel Paul
· Director
Grant (A)
50K
|
Schimmel Paul | Director | Grant (A) | – | 50K | – | 50K | – | May 11, 2026 | May 13, 2026 | |||||||||
|
Shukla Sanjay
· Director, Officer
Sell
−$4K
|
Shukla Sanjay | Director, Officer | Sell | $0.98 | −4K | −$4K | 154K | – | Feb 4, 2026 | Feb 4, 2026 | |||||||||
|
Broadfoot Jill Marie
· CFO
Sell
−$2K
|
Broadfoot Jill Marie | CFO | Sell | $0.98 | −2K | −$2K | 37K | – | Feb 4, 2026 | Feb 4, 2026 | |||||||||
|
Denyes Nancy
· Officer
Sell
−$1K
|
Denyes Nancy | Officer | Sell | $0.98 | −1K | −$1K | 33K | – | Feb 4, 2026 | Feb 4, 2026 | |||||||||
|
Shukla Sanjay
· Director, Officer
2 operations
0
|
Shukla Sanjay | Director, Officer | 2 operations | – | 0 | – | 0 | – | Feb 3, 2026 | Feb 4, 2026 | |||||||||
|
Broadfoot Jill Marie
· CFO
2 operations
0
|
Broadfoot Jill Marie | CFO | 2 operations | – | 0 | – | 0 | – | Feb 3, 2026 | Feb 4, 2026 | |||||||||
|
Denyes Nancy
· Officer
2 operations
0
|
Denyes Nancy | Officer | 2 operations | – | 0 | – | 0 | – | Feb 3, 2026 | Feb 4, 2026 | |||||||||
|
Shukla Sanjay
· Director, Officer
Grant (A)
1.5M
|
Shukla Sanjay | Director, Officer | Grant (A) | – | 1.5M | – | 1.5M | – | Jan 9, 2026 | Jan 9, 2026 | |||||||||
|
Broadfoot Jill Marie
· Officer
Grant (A)
412K
|
Broadfoot Jill Marie | Officer | Grant (A) | – | 412K | – | 412K | – | Jan 9, 2026 | Jan 9, 2026 | |||||||||
N
A
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97 reporting institutions disclosed ATYR position changes in the Q1 2026 snapshot.
For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.
An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.
Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.
Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.
A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.