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/PTCT/capital-change-brief"
Use Arkolith's capital_change_brief for PTCT. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $882.2M | 12.9M | ▲+1.3% Added · +170K sh | Q1 2026 | |
| 2 | RTW INVESTMENTS, LP | $527.8M | 7.7M | —Held | Q1 2026 | |
| 3 | JANUS HENDERSON GROUP PLC | $490.0M | 7.2M | ▲+48% Added · +2.3M sh | Q1 2026 | |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $327.3M | 4.8M | ▲New +4.8M sh | Q1 2026 | |
| 5 | STATE STREET CORP | $296.1M | 4.3M | ▲+3.3% Added · +140K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $250.5M | 3.7M | ▲New +3.7M sh | Q1 2026 | |
| 7 | TORONTO DOMINION BANK | $206.2M | 3.0M | ▼−27% Reduced · −1.1M sh | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $150.6M | 2.2M | ▲+9.6% Added · +194K sh | Q1 2026 | |
| 9 | ARMISTICE CAPITAL, LLC | $141.3M | 2.1M | ▼−26% Reduced · −727K sh | Q1 2026 | |
| 10 | BANK OF AMERICA CORP /DE/ | $128.6M | 1.9M | ▲+32% Added · +455K sh | Q1 2026 | |
| 11 | Hood River Capital Management LLC | $113.4M | 1.7M | ▲+66% Added · +661K sh | Q1 2026 | |
| 12 | D. E. Shaw & Co., Inc. | $111.8M | 1.6M | ▼−6.0% Reduced · −105K sh | Q1 2026 | |
| 13 | FMR LLC | $104.1M | 1.5M | ▼−9.1% Reduced · −153K sh | Q1 2026 | |
| 14 | TANG CAPITAL MANAGEMENT LLC | $102.2M | 1.5M | —Held | Q1 2026 | |
| 15 | UBS Group AG | $93.0M | 1.4M | ▲+41% Added · +400K sh | Q1 2026 | |
| 16 | Jefferies Financial Group Inc. | $92.3M | 1.4M | ▼−18% Reduced · −304K sh | Q1 2026 | |
| 17 | Pictet Asset Management Holding SA | $80.1M | 1.2M | ▲+21% Added · +205K sh | Q1 2026 | |
| 18 | FRANKLIN RESOURCES INC | $76.4M | 1.1M | ▼−13% Reduced · −165K sh | Q1 2026 | |
| 19 | Palo Alto Investors LP | $62.8M | 922K | ▲+1.9% Added · +18K sh | Q1 2026 | |
| 20 | BNP PARIBAS FINANCIAL MARKETS | $62.7M | 920K | ▲+11% Added · +92K sh | Q1 2026 | |
| 21 | DIMENSIONAL FUND ADVISORS LP | $60.7M | 891K | ▲+42% Added · +264K sh | Q1 2026 | |
| 22 | GOLDMAN SACHS GROUP INC | $56.4M | 828K | ▼−19% Reduced · −195K sh | Q1 2026 | |
| 23 | NORTHERN TRUST CORP | $54.9M | 806K | ▲+4.8% Added · +37K sh | Q1 2026 | |
| 24 | Woodline Partners LP | $50.8M | 745K | ▲+30% Added · +173K sh | Q1 2026 | |
| 25 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $49.8M | 732K | ▼−0.4% Reduced · −3K 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.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Jul 14, 2026 | Gravier Pierre | CHIEF FINANCIAL OFFICER | Sell (S) | 3K | $281K |
| Jul 9, 2026 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Option exercise (M) | 2K | $0 |
| Jul 9, 2026 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Sell (S) | 2K | $222K |
| Jul 9, 2026 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Option exercise (M) | 2K | $115K |
| Jul 9, 2026 | Smith Mary L. | Director | Option exercise (M) | 6K | $0 |
| Jul 9, 2026 | Smith Mary L. | Director | Option exercise (M) | 10K | $0 |
| Jul 9, 2026 | Smith Mary L. | Director | Sell (S) | 6K | $525K |
| Jul 9, 2026 | Smith Mary L. | Director | Option exercise (M) | 6K | $251K |
| Jul 9, 2026 | Smith Mary L. | Director | Sell (S) | 10K | $900K |
| Jul 9, 2026 | Smith Mary L. | Director | Option exercise (M) | 10K | $430K |
| Jul 7, 2026 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Option exercise (M) | 25K | $970K |
| Jul 7, 2026 | Almstead Neil Gregory | CHIEF TECHNICAL OPS OFFICER | Sell (S) | 4K | $345K |
| Company | Co-held by | Combined value |
|---|---|---|
| META PLATFORMS INC-CLASS AMETA | 115 funds | $24.4B |
| ELI LILLY & COLLY | 115 funds | $13.2B |
| MICROSOFT CORPMSFT | 114 funds | $51.7B |
| NVIDIA CORPNVDA | 113 funds | $76.9B |
| AMAZON.COM INCAMZN | 113 funds | $38.6B |
| ALPHABET INC-CL AGOOGL | 113 funds | $34.3B |
| MASTERCARD INC - AMA | 112 funds | $9.4B |
| BROADCOM INCAVGO | 111 funds | $28.9B |
| HOME DEPOT INCHD | 111 funds | $6.2B |
| UNITEDHEALTH GROUP INCUNH | 111 funds | $5.2B |
| INTUITIVE SURGICAL INCISRG | 111 funds | $4.3B |
| THERMO FISHER SCIENTIFIC INCTMO | 111 funds | $4.1B |
Ranked by how many of PTCT's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PTCT. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.