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 MHH 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/MHH"
Use Arkolith to show who owns MHH, which funds added or reduced it, and which SEC filings prove each claim.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $1.2M | 175K | ▲+3.0% Added · +5K sh | Q4 2025 | |
| 2 | DIMENSIONAL FUND ADVISORS LP | $1.2M | 212K | ▼−4.8% Reduced · −11K sh | Q1 2026 | |
| 3 | ENVESTNET ASSET MANAGEMENT INC | $928K | 163K | ▲+1.9% Added · +3K sh | Q1 2026 | |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | $834K | 147K | ▲New +147K sh | Q1 2026 | |
| 5 | BlackRock, Inc. | $620K | 109K | ▲+0.4% Added · +454 sh | Q1 2026 | |
| 6 | RENAISSANCE TECHNOLOGIES LLC | $583K | 102K | ▼−5.3% Reduced · −6K sh | Q1 2026 | |
| 7 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $268K | 47K | —Held | Q1 2026 | |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | $263K | 46K | ▼−11% Reduced · −6K sh | Q1 2026 | |
| 9 | NORTHERN TRUST CORP | $161K | 28K | ▼−0.8% Reduced · −219 sh | Q1 2026 | |
| 10 | VANGUARD FIDUCIARY TRUST CO | $153K | 27K | ▲New +27K sh | Q1 2026 | |
| 11 | STATE STREET CORP | $113K | 20K | —Held | Q1 2026 | |
| 12 | Cetera Investment Advisers | $95K | 17K | ▼−18% Reduced · −4K sh | Q1 2026 | |
| 13 | NewEdge Advisors, LLC | $69K | 12K | —Held | Q1 2026 | |
| 14 | CITADEL ADVISORS LLC | $62K | 11K | ▲New +11K sh | Q1 2026 | |
| 15 | &PARTNERS | $62K | 11K | ▼−13% Reduced · −2K sh | Q1 2026 | |
| 16 | BARCLAYS PLC | $31K | 6K | —Held | Q1 2026 | |
| 17 | MORGAN STANLEY | $10K | 2K | —Held | Q1 2026 | |
| 18 | OSAIC HOLDINGS, INC. | $9K | 2K | —Held | Q1 2026 | |
| 19 | UBS Group AG | $5K | 902 | ▲+95% Added · +440 sh | Q1 2026 | |
| 20 | Tower Research Capital LLC (TRC) | $4K | 708 | ▲New +708 sh | Q1 2026 | |
| 21 | BNP PARIBAS FINANCIAL MARKETS | $2K | 380 | —Held | Q1 2026 | |
| 22 | RHUMBLINE ADVISERS | $671 | 118 | —Held | Q1 2026 | |
| 23 | SBI Securities Co., Ltd. | $484 | 85 | —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 2, 2026 | SHAW STEVEN A | 10% Owner | Buy (P) | 1K | $8K |
| Feb 27, 2026 | SHAW STEVEN A | 10% Owner | Buy (P) | 4K | $23K |
| Jan 30, 2026 | SHAW STEVEN A | 10% Owner | Buy (P) | 400 | $3K |
| Jan 29, 2026 | SHAW STEVEN A | 10% Owner | Buy (P) | 4K | $31K |
| Dec 10, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 1K | $10K |
| Dec 9, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 3K | $20K |
| Sep 19, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 5K | $35K |
| Aug 29, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 4K | $28K |
| Aug 21, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 5K | $37K |
| Jul 16, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 300 | $2K |
| Jul 16, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 500 | $4K |
| Jul 15, 2025 | SHAW STEVEN A | 10% Owner | Buy (P) | 3K | $24K |
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 5 funds | $4.8B |
| APPLE INCAAPL | 5 funds | $3.0B |
| AMAZON.COM INCAMZN | 5 funds | $2.5B |
| MICROSOFT CORPMSFT | 5 funds | $2.2B |
| BROADCOM INCAVGO | 5 funds | $1.6B |
| ALPHABET INC-CL AGOOGL | 5 funds | $1.6B |
| META PLATFORMS INC-CLASS AMETA | 5 funds | $1.5B |
| JPMORGAN CHASE & COJPM | 5 funds | $1.4B |
| TESLA INCTSLA | 5 funds | $1.1B |
| ALPHABET INC-CL CGOOG | 5 funds | $1.1B |
| BERKSHIRE HATHAWAY INC-CL BBRK/B | 5 funds | $1.0B |
| JOHNSON & JOHNSONJNJ | 5 funds | $931.9M |
Ranked by how many of MHH'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 MHH. 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.