The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
This stock page is the Follow view. The Build view lets your agent query PSIX owners, fund changes, insider filings, and source links through REST or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/PSIX"
Use Arkolith to show who owns PSIX, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | $43.6M | 716K | ▲+6.2% Added · +42K sh | Q1 2026 | |
| 2 | VANGUARD GROUP INC | $30.9M | 540K | ▲+7.5% Added · +38K sh | Q4 2025 | |
| 3 | Situational Awareness LP | $26.3M | 432K | —Held | Q1 2026 | |
| 4 | Situational Awareness Partners LP | $26.3M | 432K | ▲New +432K sh | Q1 2026 | |
| 5 | Allspring Global Investments Holdings, LLC | $19.9M | 301K | ▼−8.4% Reduced · −28K sh | Q1 2026 | |
| 6 | GEODE CAPITAL MANAGEMENT, LLC | $12.0M | 196K | ▲+2.4% Added · +5K sh | Q1 2026 | |
| 7 | STATE STREET CORP | $10.4M | 171K | ▲+3.5% Added · +6K sh | Q1 2026 | |
| 8 | DANSKE BANK A/S | $7.4M | 122K | ▲New +122K sh | Q1 2026 | |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | $6.4M | 105K | ▲New +105K sh | Q1 2026 | |
| 10 | Man Group plc | $5.4M | 89K | ▲+230% Added · +62K sh | Q1 2026 | |
| 11 | VOLORIDGE INVESTMENT MANAGEMENT, LLC | $4.4M | 73K | ▲New +73K sh | Q1 2026 | |
| 12 | Valiant Capital Management, L.P. | $4.2M | 69K | ▲+72% Added · +29K sh | Q1 2026 | |
| 13 | ANTIPODES PARTNERS Ltd | $3.2M | 53K | ▼−77% Reduced · −176K sh | Q1 2026 | |
| 14 | VANGUARD FIDUCIARY TRUST CO | $3.0M | 49K | ▲New +49K sh | Q1 2026 | |
| 15 | CAPITAL FUND MANAGEMENT S.A. | $2.9M | 47K | ▲+218% Added · +32K sh | Q1 2026 | |
| 16 | Tidal Investments LLC | $1.8M | 29K | ▲+73% Added · +12K sh | Q1 2026 | |
| 17 | BURNEY CO/ | $1.8M | 29K | ▼−4.3% Reduced · −1K sh | Q1 2026 | |
| 18 | CITADEL ADVISORS LLC | $1.7M | 28K | ▲+71% Added · +12K sh | Q1 2026 | |
| 19 | OP Asset Management Ltd | $1.5M | 25K | ▲+712% Added · +22K sh | Q1 2026 | |
| 20 | O'SHAUGHNESSY ASSET MANAGEMENT, LLC | $1.1M | 18K | ▼−39% Reduced · −12K sh | Q1 2026 | |
| 21 | ARGA Investment Management, LP | $989K | 16K | ▲New +16K sh | Q1 2026 | |
| 22 | Hennion & Walsh Asset Management, Inc. | $983K | 16K | ▲+80% Added · +7K sh | Q1 2026 | |
| 23 | Moran Wealth Management, LLC | $970K | 16K | ▲+78% Added · +7K sh | Q1 2026 | |
| 24 | Gotham Asset Management, LLC | $969K | 16K | ▼−12% Reduced · −2K sh | Q1 2026 | |
| 25 | Swiss Life Asset Management Ltd | $754K | 5K | ▲New +5K 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 |
|---|---|---|---|---|---|
| Feb 12, 2026 | Li Xun | CFO | Tax withholding (F) | 3K | $318K |
| Feb 12, 2026 | Li Xun | CFO | Option exercise (M) | 8K | $0 |
| Feb 12, 2026 | Li Xun | CFO | Option exercise (M) | 8K | $15K |
| Dec 11, 2025 | He Hong | Director | Grant (A) | 5K | $0 |
| Dec 11, 2025 | Shea Courtney C. | Director | Grant (A) | 5K | $0 |
| Dec 11, 2025 | SIMPKINS FRANK P | Director | Grant (A) | 5K | $0 |
| Dec 11, 2025 | Du Zhaoying | GC and Corp Secy | Grant (A) | 700 | $0 |
| Sep 11, 2025 | He Hong | Director | Sell (S) | 2K | $141K |
| Sep 11, 2025 | Weichai Power Co., Ltd. | 10% Owner | Sell (S) | 31K | $2.9M |
| Sep 11, 2025 | Weichai Power Co., Ltd. | 10% Owner | Sell (S) | 7K | $618K |
| Sep 11, 2025 | Weichai Power Co., Ltd. | 10% Owner | Sell (S) | 19K | $1.8M |
| Sep 11, 2025 | Weichai Power Co., Ltd. | 10% Owner | Sell (S) | 23K | $2.2M |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 64 funds | $28.5B |
| AMAZON.COM INCAMZN | 64 funds | $21.6B |
| MICRON TECHNOLOGY INCMU | 64 funds | $5.7B |
| NVIDIA CORPNVDA | 63 funds | $40.8B |
| ELI LILLY & COLLY | 62 funds | $7.4B |
| ALPHABET INC-CL AGOOGL | 61 funds | $18.8B |
| BROADCOM INCAVGO | 61 funds | $15.4B |
| META PLATFORMS INC-CLASS AMETA | 61 funds | $12.6B |
| COSTCO WHOLESALE CORPCOST | 61 funds | $5.7B |
| MASTERCARD INC - AMA | 61 funds | $4.9B |
| ADVANCED MICRO DEVICESAMD | 61 funds | $3.4B |
| CITIGROUP INCC | 61 funds | $3.1B |
Ranked by how many of PSIX'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 PSIX. 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.