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 SGRP 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/SGRP"
Use Arkolith to show who owns SGRP, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Nantahala Capital Management, LLC | $413K | 661K | —Held | Q1 2026 | |
| 2 | CITADEL ADVISORS LLC | $38K | 60K | ▲+69% Added · +25K sh | Q1 2026 | |
| 3 | VANGUARD FIDUCIARY TRUST CO | $32K | 51K | ▲New +51K sh | Q1 2026 | |
| 4 | CSS LLC/IL | $15K | 24K | —Held | Q1 2026 | |
| 5 | STATE STREET CORP | $13K | 21K | —Held | 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 |
|---|---|---|---|---|---|
| Jun 11, 2026 | BROWN ROBERT G/ | 10% Owner | Sell (S) | 10K | $9K |
| Mar 10, 2026 | BROWN ROBERT G/ | 10% Owner | Gift (G) | 100 | — |
| Dec 19, 2025 | Hennen Steven Michael | Chief Financial Officer | Buy (P) | 55K | $43K |
| Oct 3, 2025 | Linnane William | President | Buy (P) | 173K | $176K |
| Sep 25, 2025 | BROWN ROBERT G/ | 10% Owner | Other (J) | 454K | — |
| Sep 25, 2025 | BROWN ROBERT G/ | 10% Owner | Other (J) | 454K | — |
| Sep 25, 2025 | BROWN ROBERT G/ | 10% Owner | Sell (S) | 10K | $11K |
| Sep 2, 2025 | Matacunas Mike R. | Chief Executive Officer, Director | Option exercise (M) | 96K | $0 |
| Sep 2, 2025 | Matacunas Mike R. | Chief Executive Officer, Director | Option exercise (M) | 29K | $34K |
| Sep 2, 2025 | Matacunas Mike R. | Chief Executive Officer, Director | Option exercise (M) | 96K | $0 |
| Jun 24, 2025 | BARTELS WILLIAMS H | Director, 10% Owner | Other (J) | 600K | $0 |
| May 15, 2025 | Matacunas Mike R. | Chief Executive Officer, Director | Option exercise (M) | 40K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| APPLE INCAAPL | 6 funds | $12.3B |
| MICROSOFT CORPMSFT | 6 funds | $8.3B |
| AMAZON.COM INCAMZN | 6 funds | $6.6B |
| META PLATFORMS INC-CLASS AMETA | 6 funds | $5.9B |
| JOHNSON & JOHNSONJNJ | 6 funds | $5.0B |
| ALPHABET INC-CL AGOOGL | 6 funds | $4.8B |
| AT&T INCT | 6 funds | $4.1B |
| WALT DISNEY CO/THEDIS | 6 funds | $3.9B |
| PFIZER INCPFE | 6 funds | $3.8B |
| CHEVRON CORPCVX | 6 funds | $3.7B |
| CVS HEALTH CORPCVS | 6 funds | $3.4B |
| COMCAST CORP-CLASS ACMCSA | 6 funds | $3.3B |
Ranked by how many of SGRP'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 SGRP. 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.