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 SEG 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/SEG"
Use Arkolith to show who owns SEG, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | Pershing Square Capital Management, L.P. | $107.9M | 5.0M | —Held | Q1 2026 | |
| 2 | Rubric Capital Management LP | $12.2M | 569K | —Held | Q1 2026 | |
| 3 | BlackRock, Inc. | $10.9M | 506K | ▼−1.6% Reduced · −8K sh | Q1 2026 | |
| 4 | VANGUARD GROUP INC | $9.0M | 454K | ▼−1.4% Reduced · −6K sh | Q4 2025 | |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $4.0M | 185K | ▲+3.5% Added · +6K sh | Q1 2026 | |
| 6 | STATE STREET CORP | $3.8M | 178K | ▲+0.6% Added · +981 sh | Q1 2026 | |
| 7 | HORIZON KINETICS ASSET MANAGEMENT LLC | $1.1M | 52K | ▼−0.1% Reduced · −82 sh | Q1 2026 | |
| 8 | VANGUARD FIDUCIARY TRUST CO | $1.0M | 48K | ▲New +48K sh | Q1 2026 | |
| 9 | VANGUARD PORTFOLIO MANAGEMENT LLC | $925K | 43K | ▲New +43K sh | Q1 2026 | |
| 10 | CITADEL ADVISORS LLC | $554K | 26K | ▼−68% Reduced · −54K sh | Q1 2026 | |
| 11 | ArrowMark Colorado Holdings LLC | $395K | 18K | ▼−0.7% Reduced · −121 sh | Q1 2026 | |
| 12 | Trexquant Investment LP | $377K | 18K | ▲New +18K sh | Q1 2026 | |
| 13 | COMMERCE BANK | $377K | 18K | ▼~0% Reduced · −8 sh | Q1 2026 | |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $361K | 17K | —Held | Q1 2026 | |
| 15 | State of New Jersey Common Pension Fund D | $341K | 16K | —Held | Q1 2026 | |
| 16 | Tidal Investments LLC | $340K | 16K | ▼−1.8% Reduced · −293 sh | Q1 2026 | |
| 17 | CITIZENS FINANCIAL GROUP INC/RI | $250K | 12K | ▲New +12K sh | Q1 2026 | |
| 18 | Moran Wealth Management, LLC | $235K | 11K | ▲New +11K sh | Q1 2026 | |
| 19 | Aquatic Capital Management LLC | $112K | 5K | ▲+171% Added · +3K sh | Q1 2026 | |
| 20 | MetLife Investment Management, LLC | $106K | 5K | ▼−1.2% Reduced · −62 sh | Q1 2026 | |
| 21 | Police & Firemen's Retirement System of New Jersey | $37K | 2K | —Held | Q1 2026 | |
| 22 | CWM, LLC | $34K | 2K | ▲+542% Added · +1K sh | Q1 2026 | |
| 23 | NISA INVESTMENT ADVISORS, LLC | $26K | 1K | ▲11× Added · +1K sh | Q1 2026 | |
| 24 | FMR LLC | $20K | 922 | ▼−20% Reduced · −225 sh | Q1 2026 | |
| 25 | Ameritas Investment Partners, Inc. | $16K | 762 | —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 |
|---|---|---|---|---|---|
| Mar 16, 2026 | Hirsh David Z. | Director | Grant (A) | 1K | $0 |
| Mar 16, 2026 | Crawford Michael Anthony | Director | Grant (A) | 1K | $0 |
| Mar 16, 2026 | Digilio Monica S | Director | Grant (A) | 1K | $0 |
| Mar 6, 2026 | PARTRIDGE MATTHEW MORRIS | Chief Executive Officer, Director | Tax withholding (F) | 3K | $59K |
| Mar 6, 2026 | Sachs Rebecca E. | Chief People Officer | Tax withholding (F) | 684 | $15K |
| Mar 6, 2026 | Fato Luciana | General Counsel | Tax withholding (F) | 728 | $16K |
| Feb 27, 2026 | Elaiwat Lenah | Chief Financial Officer | Tax withholding (F) | 914 | $21K |
| Feb 27, 2026 | Sachs Rebecca E. | Chief People Officer | Tax withholding (F) | 987 | $23K |
| Feb 26, 2026 | PARTRIDGE MATTHEW MORRIS | Chief Executive Officer, Director | Grant (A) | 28K | $0 |
| Feb 26, 2026 | Fato Luciana | General Counsel | Grant (A) | 8K | $0 |
| Feb 26, 2026 | Sachs Rebecca E. | Chief People Officer | Grant (A) | 8K | $0 |
| Feb 26, 2026 | Elaiwat Lenah | Chief Financial Officer | Grant (A) | 10K | $0 |
| Company | Co-held by | Combined value |
|---|---|---|
| MICROSOFT CORPMSFT | 35 funds | $15.1B |
| AMAZON.COM INCAMZN | 35 funds | $12.9B |
| NVIDIA CORPNVDA | 34 funds | $21.0B |
| ALPHABET INC-CL AGOOGL | 34 funds | $9.2B |
| META PLATFORMS INC-CLASS AMETA | 34 funds | $8.0B |
| JPMORGAN CHASE & COJPM | 34 funds | $5.4B |
| VISA INC-CLASS A SHARESV | 34 funds | $2.6B |
| COSTCO WHOLESALE CORPCOST | 34 funds | $2.6B |
| CHEVRON CORPCVX | 34 funds | $1.8B |
| UNITEDHEALTH GROUP INCUNH | 34 funds | $1.5B |
| BANK OF AMERICA CORPBAC | 34 funds | $1.4B |
| EOG RESOURCES INCEOG | 34 funds | $392.9M |
Ranked by how many of SEG'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 SEG. 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.