95 tracked 13F filers disclose a position in ATYR as of the latest SEC 13F filings, a combined $42.3M in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | FMR LLC | $11.5M | 14.7M | ▲+0.1% Added · +9K sh | Q1 2026 | |
| 2 | FEDERATED HERMES, INC. | $8.2M | 10.5M | —Held | Q1 2026 | |
| 3 | BlackRock, Inc. | $5.0M | 6.4M | ▼−1.6% Reduced · −106K sh | Q1 2026 | |
| 4 | UBS Group AG | $3.0M | 3.9M | ▲+138% Added · +2.2M sh | Q1 2026 | |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | $3.0M | 3.8M | →First observed position No prior filed position | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $1.9M | 2.4M | ▲+4.5% Added · +102K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $1.4M | 1.8M | ▲+1.7% Added · +30K sh | Q1 2026 | |
| 8 | MILLENNIUM MANAGEMENT LLC | $1.3M | 1.6M | ▲New +1.6M sh | Q1 2026 | |
| 9 | MORGAN STANLEY | $956K | 1.2M | ▼−13% Reduced · −178K sh | Q1 2026 | |
| 10 | TWO SIGMA INVESTMENTS, LP | $893K | 1.1M | ▲+152% Added · +690K sh | Q1 2026 | |
| 11 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $676K | 867K | ▲+13% Added · +102K sh | Q1 2026 | |
| 12 | NORTHERN TRUST CORP | $555K | 711K | ▲+1.3% Added · +9K sh | Q1 2026 | |
| 13 | VANGUARD FIDUCIARY TRUST CO | $508K | 652K | →First observed position No prior filed position | Q1 2026 | |
| 14 | VANGUARD PORTFOLIO MANAGEMENT LLC | $444K | 569K | →First observed position No prior filed position | Q1 2026 | |
| 15 | AQR CAPITAL MANAGEMENT LLC | $387K | 496K | ▼−36% Reduced · −274K sh | Q1 2026 | |
| 16 | BANK OF AMERICA CORP /DE/ | $237K | 304K | ▲+140% Added · +177K sh | Q1 2026 | |
| 17 | GOLDMAN SACHS GROUP INC | $221K | 283K | ▼−18% Reduced · −62K sh | Q1 2026 | |
| 18 | Nuveen, LLC | $179K | 229K | ▲+0.6% Added · +1K sh | Q1 2026 | |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $164K | 211K | ▼−5.0% Reduced · −11K sh | Q1 2026 | |
| 20 | Bank of New York Mellon Corp | $151K | 194K | ▼~0% Reduced · −1 sh | Q1 2026 | |
| 21 | Curated Wealth Partners LLC | $185K | 190K | ▲New +190K sh | Q2 2026 | |
| 22 | GROUP ONE TRADING LLC | $144K | 184K | ▼−3.7% Reduced · −7K sh | Q1 2026 | |
| 23 | MARSHALL WACE, LLP | $108K | 138K | ▲New +138K sh | Q1 2026 | |
| 24 | XTX Topco Ltd | $87K | 111K | ▲+40% Added · +32K sh | Q1 2026 | |
| 25 | DEUTSCHE BANK AG\ | $81K | 103K | ▼−14% Reduced · −17K sh | Q1 2026 |
Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.
Last quarter, 9 funds opened a new position in ATYR and 11 added to an existing one, while 7 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 22 funds | $8.2B |
| AMAZON.COM INCAMZN | 22 funds | $6.4B |
| ALPHABET INC-CL AGOOGL | 22 funds | $5.5B |
| BROADCOM INCAVGO | 22 funds | $4.4B |
| META PLATFORMS INC-CLASS AMETA | 22 funds | $4.3B |
| JPMORGAN CHASE & COJPM | 22 funds | $3.8B |
| MICRON TECHNOLOGY INCMU | 22 funds | $2.6B |
| TESLA INCTSLA | 22 funds | $2.5B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 22 funds | $2.4B |
| JOHNSON & JOHNSONJNJ | 22 funds | $1.9B |
| ELI LILLY & COLLY | 22 funds | $1.9B |
| COSTCO WHOLESALE CORPCOST | 22 funds | $1.7B |
Ranked by how many of ATYR's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| May 27, 2026 | SCHIMMEL PAUL | Director | Buy (P) | 100K | $50K |
| Feb 4, 2026 | DENYES NANCY | General Counsel | Sell (S) | 1K | $1K |
| Feb 4, 2026 | Broadfoot Jill Marie | Chief Financial Officer | Sell (S) | 2K | $2K |
| Feb 4, 2026 | Shukla Sanjay | President and CEO, Director | Sell (S) | 4K | $4K |
| Oct 9, 2025 | SCHIMMEL PAUL | Director | Buy (P) | 318K | $299K |
| Oct 8, 2025 | SCHIMMEL PAUL | Director | Buy (P) | 682K | $614K |
| Mar 17, 2025 | Gross Jane A | Director | Buy (P) | 4K | $15K |
| Feb 4, 2025 | DENYES NANCY | General Counsel | Sell (S) | 899 | $3K |
| Feb 4, 2025 | Broadfoot Jill Marie | Chief Financial Officer | Sell (S) | 1K | $5K |
| Jul 24, 2024 | SCHIMMEL PAUL | Director | Buy (P) | 52K | $101K |
| Jul 23, 2024 | SCHIMMEL PAUL | Director | Buy (P) | 7K | $12K |
| Jul 22, 2024 | SCHIMMEL PAUL | Director | Buy (P) | 41K | $71K |
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/ATYR/capital-change-brief"
Use Arkolith's capital_change_brief for ATYR. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for ATYR. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.