113 tracked 13F filers disclose a position in ALDX as of the latest SEC 13F filings, a combined $58.2M 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 | Knoll Capital Management, LLC | $9.3M | 5.5M | —Held | Q1 2026 | |
| 2 | BlackRock, Inc. | $6.4M | 3.8M | ▼−2.2% Reduced · −86K sh | Q1 2026 | |
| 3 | AQR CAPITAL MANAGEMENT LLC | $4.8M | 2.8M | ▲+131% Added · +1.6M sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $4.0M | 2.4M | →First observed position No prior filed position | Q1 2026 | |
| 5 | KINGDON CAPITAL MANAGEMENT, L.L.C. | $3.6M | 2.2M | ▲+16% Added · +302K sh | Q1 2026 | |
| 6 | 683 Capital Management, LLC | $3.1M | 1.4M | ▼−3.3% Reduced · −50K sh | Q2 2026 | |
| 7 | D. E. Shaw & Co., Inc. | $2.4M | 1.4M | ▼−12% Reduced · −197K sh | Q1 2026 | |
| 8 | MILLENNIUM MANAGEMENT LLC | $1.7M | 995K | ▲23× Added · +951K sh | Q1 2026 | |
| 9 | ARDSLEY ADVISORY PARTNERS LP | $2.1M | 975K | ▲+2.6% Added · +25K sh | Q2 2026 | |
| 10 | JANE STREET GROUP, LLC | $1.6M | 969K | ▲+219% Added · +665K sh | Q1 2026 | |
| 11 | RENAISSANCE TECHNOLOGIES LLC | $1.5M | 863K | ▲+147% Added · +513K sh | Q1 2026 | |
| 12 | VANGUARD PORTFOLIO MANAGEMENT LLC | $1.4M | 808K | →First observed position No prior filed position | Q1 2026 | |
| 13 | JACOBS LEVY EQUITY MANAGEMENT, INC | $1.3M | 797K | ▼−18% Reduced · −172K sh | Q1 2026 | |
| 14 | DIMENSIONAL FUND ADVISORS LP | $1.1M | 624K | ▲+1.9% Added · +12K sh | Q1 2026 | |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $1.3M | 596K | ▼−52% Reduced · −656K sh | Q2 2026 | |
| 16 | GOLDMAN SACHS GROUP INC | $918K | 543K | ▲+78% Added · +237K sh | Q1 2026 | |
| 17 | UBS Group AG | $908K | 538K | ▲+462% Added · +442K sh | Q1 2026 | |
| 18 | MORGAN STANLEY | $877K | 519K | ▼−21% Reduced · −138K sh | Q1 2026 | |
| 19 | CITADEL ADVISORS LLC | $808K | 379K | ▲+42% Added · +113K sh | Q2 2026 | |
| 20 | NORTHERN TRUST CORP | $633K | 375K | ▼−1.2% Reduced · −5K sh | Q1 2026 | |
| 21 | VANGUARD FIDUCIARY TRUST CO | $572K | 339K | →First observed position No prior filed position | Q1 2026 | |
| 22 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $471K | 278K | ▲+343% Added · +216K sh | Q1 2026 | |
| 23 | STATE STREET CORP | $498K | 234K | ▼−79% Reduced · −891K sh | Q2 2026 | |
| 24 | TWO SIGMA INVESTMENTS, LP | $378K | 224K | ▼−22% Reduced · −64K sh | Q1 2026 | |
| 25 | BANK OF AMERICA CORP /DE/ | $364K | 215K | ▼−47% Reduced · −195K 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, 13 funds opened a new position in ALDX and 16 added to an existing one, while 13 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 |
|---|---|---|
| NVIDIA CORPNVDA | 46 funds | $176.3B |
| ELI LILLY & COLLY | 46 funds | $34.7B |
| AMAZON.COM INCAMZN | 45 funds | $82.2B |
| ALPHABET INC-CL CGOOG | 45 funds | $59.8B |
| ADVANCED MICRO DEVICESAMD | 45 funds | $16.7B |
| LAM RESEARCH CORPLRCX | 45 funds | $12.3B |
| BRISTOL-MYERS SQUIBB COBMY | 45 funds | $6.8B |
| VERTEX PHARMACEUTICALS INCVRTX | 45 funds | $5.7B |
| WESTERN DIGITAL CORPWDC | 45 funds | $5.4B |
| APPLE INCAAPL | 44 funds | $135.8B |
| MICROSOFT CORPMSFT | 44 funds | $118.8B |
| VISA INC-CLASS A SHARESV | 44 funds | $29.6B |
Ranked by how many of ALDX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jun 3, 2026 | Brady Todd C | President and CEO, Director | Buy (P) | 250K | $418K |
| Mar 19, 2026 | DOUGLAS RICHARD | Director | Buy (P) | 70K | $98K |
| Mar 18, 2026 | Alfieri Michael | Principal Financial Officer | Buy (P) | 5K | $7K |
| Aug 13, 2025 | Alfieri Michael | Principal Financial Officer | Buy (P) | 3K | $13K |
| Aug 11, 2025 | Machatha Stephen | Chief Development Officer | Sell (S) | 22K | $114K |
| Apr 3, 2025 | PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | 10% Owner | Sell (S) | 3.4M | $4.8M |
| Aug 12, 2024 | Greenberg Bruce | See Remarks | Sell (S) | 11K | $51K |
| Aug 12, 2024 | Machatha Stephen | Chief Development Officer | Sell (S) | 16K | $76K |
| Apr 5, 2024 | EDELMAN JOSEPH | 10% Owner | Buy (P) | 38K | $179K |
| Apr 4, 2024 | EDELMAN JOSEPH | 10% Owner | Buy (P) | 140K | $655K |
| Apr 3, 2024 | PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | 10% Owner | Buy (P) | 310K | $1.3M |
| Apr 2, 2024 | PERCEPTIVE LIFE SCIENCES MASTER FUND LTD | 10% Owner | Buy (P) | 186K | $640K |
Connected entities for ALDX
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/ALDX/capital-change-brief"
Use Arkolith's capital_change_brief for ALDX. 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 ALDX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.