307 tracked 13F filers disclose a position in PTGX as of the latest SEC 13F filings, a combined $7.8B 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 | BlackRock, Inc. | $1.0B | 9.8M | ▲+0.7% Added · +63K sh | Q1 2026 | |
| 2 | FARALLON CAPITAL MANAGEMENT LLC | $669.2M | 6.3M | ▲+3.3% Added · +205K sh | Q1 2026 | |
| 3 | UBS Group AG | $545.7M | 5.2M | ▲+87% Added · +2.4M sh | Q1 2026 | |
| 4 | RTW INVESTMENTS, LP | $620.4M | 5.1M | ▲~0% Added · +2K sh | Q2 2026 | |
| 5 | VANGUARD PORTFOLIO MANAGEMENT LLC | $366.9M | 3.5M | →First observed position No prior filed position | Q1 2026 | |
| 6 | STATE STREET CORP | $407.2M | 3.3M | ▲+6.6% Added · +205K sh | Q2 2026 | |
| 7 | JANUS HENDERSON GROUP PLC | $304.9M | 2.9M | ▲+9.1% Added · +242K sh | Q1 2026 | |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | $295.7M | 2.8M | →First observed position No prior filed position | Q1 2026 | |
| 9 | JOHNSON & JOHNSON | $300.2M | 2.4M | —Held | Q2 2026 | |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | $213.5M | 1.7M | ▲+4.3% Added · +72K sh | Q2 2026 | |
| 11 | PRICE T ROWE ASSOCIATES INC /MD/ | $175.5M | 1.7M | ▲+19% Added · +265K sh | Q1 2026 | |
| 12 | CITADEL ADVISORS LLC | $163.6M | 1.6M | ▲+38% Added · +425K sh | Q1 2026 | |
| 13 | Woodline Partners LP | $149.1M | 1.4M | ▲+0.4% Added · +5K sh | Q1 2026 | |
| 14 | BANK OF AMERICA CORP /DE/ | $136.5M | 1.3M | ▲+49% Added · +428K sh | Q1 2026 | |
| 15 | PERCEPTIVE ADVISORS LLC | $129.7M | 1.2M | ▼−8.8% Reduced · −120K sh | Q1 2026 | |
| 16 | JENNISON ASSOCIATES LLC | $113.0M | 1.1M | ▲+224% Added · +741K sh | Q1 2026 | |
| 17 | MORGAN STANLEY | $107.3M | 1.0M | ▲+16% Added · +139K sh | Q1 2026 | |
| 18 | ADAR1 Capital Management, LLC | $104.8M | 994K | ▼−5.2% Reduced · −55K sh | Q1 2026 | |
| 19 | Hood River Capital Management LLC | $108.2M | 883K | ▲+6.4% Added · +53K sh | Q2 2026 | |
| 20 | GOLDMAN SACHS GROUP INC | $82.1M | 779K | ▼−19% Reduced · −182K sh | Q1 2026 | |
| 21 | FMR LLC | $69.8M | 662K | ▲+23% Added · +122K sh | Q1 2026 | |
| 22 | MARSHALL WACE, LLP | $66.2M | 628K | ▼−39% Reduced · −397K sh | Q1 2026 | |
| 23 | Clearbridge Investments, LLC | $65.5M | 622K | ▲+27% Added · +132K sh | Q1 2026 | |
| 24 | Alyeska Investment Group, L.P. | $62.5M | 593K | ▲+197% Added · +394K sh | Q1 2026 | |
| 25 | NORTHERN TRUST CORP | $62.0M | 588K | ▲+2.2% Added · +13K 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, 8 funds opened a new position in PTGX and 35 added to an existing one, while 15 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 | 170 funds | $369.6B |
| AMAZON.COM INCAMZN | 168 funds | $186.5B |
| ELI LILLY & COLLY | 168 funds | $77.6B |
| MICROSOFT CORPMSFT | 167 funds | $240.9B |
| ALPHABET INC-CL AGOOGL | 167 funds | $150.9B |
| BROADCOM INCAVGO | 163 funds | $145.2B |
| META PLATFORMS INC-CLASS AMETA | 162 funds | $104.1B |
| ADVANCED MICRO DEVICESAMD | 162 funds | $34.7B |
| APPLE INCAAPL | 160 funds | $276.2B |
| MICRON TECHNOLOGY INCMU | 160 funds | $35.6B |
| ALPHABET INC-CL CGOOG | 157 funds | $111.5B |
| MERCK & CO. INC.MRK | 156 funds | $27.6B |
Ranked by how many of PTGX's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 11, 2026 | PATEL DINESH V PH D | President and CEO, Director | Sell (S) | 34K | $5.1M |
| Aug 10, 2026 | PATEL DINESH V PH D | President and CEO, Director | Sell (S) | 66K | $9.8M |
| Jun 23, 2026 | Waddill William D. | Director | Sell (S) | 9K | $1.1M |
| Jun 10, 2026 | Waddill William D. | Director | Sell (S) | 9K | $969K |
| May 29, 2026 | Waddill William D. | Director | Sell (S) | 9K | $897K |
| May 12, 2026 | PATEL DINESH V PH D | President and CEO, Director | Sell (S) | 75K | $7.5M |
| May 8, 2026 | Giraudo Bryan | Director | Sell (S) | 6K | $600K |
| May 8, 2026 | Giraudo Bryan | Director | Sell (S) | 5K | $513K |
| May 7, 2026 | Giraudo Bryan | Director | Sell (S) | 36K | $3.6M |
| May 7, 2026 | Giraudo Bryan | Director | Sell (S) | 12K | $1.2M |
| Apr 20, 2026 | Ali Asif | Chief Financial Officer | Sell (S) | 2K | $185K |
| Mar 26, 2026 | Ali Asif | Chief Financial Officer | Sell (S) | 25K | $2.6M |
| Class | 13F holders | Value held |
|---|---|---|
| PTGXthis pageStock | 307 funds | $7.8B |
| 74366E106COM | 1 funds | $685K |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
Connected entities for PTGX
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/PTGX/capital-change-brief"
Use Arkolith's capital_change_brief for PTGX. 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 PTGX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.