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 PST 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/PST"
Use Arkolith to show who owns PST, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $829K | 37K | ▲+41% Added · +11K sh | Q1 2026 | |
| 2 | JANE STREET GROUP, LLC | $683K | 30K | ▲New +30K sh | Q1 2026 | |
| 3 | ROYAL BANK OF CANADA | $547K | 24K | ▲+290% Added · +18K sh | Q1 2026 | |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $398K | 18K | ▼−50% Reduced · −18K sh | Q1 2026 | |
| 5 | SIMPLEX TRADING, LLC | $168K | 7K | ▲+283% Added · +6K sh | Q1 2026 | |
| 6 | GROUP ONE TRADING LLC | $2K | 100 | —Held | Q1 2026 | |
| 7 | MORGAN STANLEY | $43 | 1 | ▼−67% Reduced · −2 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.
No Form 4 insider transactions on file yet.
| Class | 13F holders | Value held |
|---|---|---|
| SSOcommon | 110 funds | $209.0M |
| QLDPSHS ULTRA QQQ | 100 funds | $198.3M |
| CSMPSHS LC COR PLUS | 57 funds | $194.4M |
| USDcommon | 36 funds | $59.7M |
| ROMcs | 36 funds | $25.7M |
| UWMcommon | 29 funds | $27.7M |
| DDMPSHS ULTRA DOW30 | 28 funds | $19.1M |
| SJBSHRT HGH YIELD | 19 funds | $67.3M |
Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 32 funds | $228.7B |
| AMAZON.COM INCAMZN | 32 funds | $125.7B |
| META PLATFORMS INC-CLASS AMETA | 32 funds | $74.8B |
| ALPHABET INC-CL AGOOGL | 32 funds | $73.2B |
| BROADCOM INCAVGO | 32 funds | $56.8B |
| JPMORGAN CHASE & COJPM | 32 funds | $48.5B |
| UNITEDHEALTH GROUP INCUNH | 32 funds | $45.3B |
| VISA INC-CLASS A SHARESV | 32 funds | $40.9B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 32 funds | $33.5B |
| COSTCO WHOLESALE CORPCOST | 32 funds | $30.9B |
| HOME DEPOT INCHD | 32 funds | $28.0B |
| CHEVRON CORPCVX | 32 funds | $25.8B |
Ranked by how many of PST's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).
No filings captured for this ticker in the live stream yet.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for PST. 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.