321 tracked 13F filers disclose a position in MDLN as of the latest SEC 13F filings, a combined $17.7B in reported value. 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.
| # | Fund | Position value | Shares | Last move | As of | History |
|---|---|---|---|---|---|---|
| 1 | H&F Corporate Investors X, Ltd. | $3.8B | 86.5M | ▼−13% Reduced · −13.0M sh | Q1 2026 | |
| 2 | FMR LLC | $1.6B | 36.6M | ▲+39% Added · +10.2M sh | Q1 2026 | |
| 3 | BlackRock, Inc. | $753.1M | 16.9M | ▲+47% Added · +5.4M sh | Q1 2026 | |
| 4 | Egerton Capital (UK) LLP | $649.6M | 16.5M | ▲+277% Added · +12.1M sh | Q2 2026 | |
| 5 | MORGAN STANLEY | $698.8M | 15.7M | ▲+3.6% Added · +541K sh | Q1 2026 | |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | $655.5M | 14.7M | →First observed position No prior filed position | Q1 2026 | |
| 7 | VANGUARD PORTFOLIO MANAGEMENT LLC | $629.7M | 14.2M | →First observed position No prior filed position | Q1 2026 | |
| 8 | LONE PINE CAPITAL LLC | $524.6M | 11.8M | ▲+0.6% Added · +72K sh | Q1 2026 | |
| 9 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | $518.1M | 11.6M | ▲+13% Added · +1.3M sh | Q1 2026 | |
| 10 | JANUS HENDERSON GROUP PLC | $506.5M | 11.5M | ▲+8.4% Added · +887K sh | Q1 2026 | |
| 11 | VIKING GLOBAL INVESTORS LP | $508.8M | 11.4M | ▲+64% Added · +4.5M sh | Q1 2026 | |
| 12 | BAILLIE GIFFORD & CO | $443.9M | 10.0M | ▼−4.2% Reduced · −435K sh | Q1 2026 | |
| 13 | CANADA PENSION PLAN INVESTMENT BOARD | $416.4M | 9.4M | ▼−1.5% Reduced · −143K sh | Q1 2026 | |
| 14 | STATE STREET CORP | $333.2M | 8.4M | ▲+75% Added · +3.6M sh | Q2 2026 | |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | $312.7M | 7.9M | ▲+27% Added · +1.7M sh | Q2 2026 | |
| 16 | BANQUE PICTET & CIE SA | $288.4M | 7.3M | ▲+415% Added · +5.9M sh | Q2 2026 | |
| 17 | Artisan Partners Limited Partnership | $295.0M | 6.6M | ▲+44% Added · +2.0M sh | Q1 2026 | |
| 18 | SurgoCap Partners LP | $270.3M | 6.1M | ▲New +6.1M sh | Q1 2026 | |
| 19 | PRICE T ROWE ASSOCIATES INC /MD/ | $249.7M | 5.6M | ▼−23% Reduced · −1.7M sh | Q1 2026 | |
| 20 | HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND | $222.5M | 5.0M | ▲+233% Added · +3.5M sh | Q1 2026 | |
| 21 | NORGES BANK | $210.0M | 5.0M | ▲New +5.0M sh | Q4 2025 | |
| 22 | DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt | $195.1M | 4.4M | ▲+20% Added · +725K sh | Q1 2026 | |
| 23 | Point72 Asset Management, L.P. | $147.0M | 3.3M | ▲+271% Added · +2.4M sh | Q1 2026 | |
| 24 | UBS Group AG | $142.0M | 3.2M | ▲+145% Added · +1.9M sh | Q1 2026 | |
| 25 | Ghisallo Capital Management LLC | $118.3M | 3.0M | ▼−34% Reduced · −1.5M sh | Q2 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.
Last quarter, 13 funds opened a new position in MDLN and 39 added to an existing one, while 10 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).
| Company | Co-held by | Combined value |
|---|---|---|
| NVIDIA CORPNVDA | 179 funds | $323.4B |
| AMAZON.COM INCAMZN | 179 funds | $172.9B |
| ALPHABET INC-CL AGOOGL | 174 funds | $131.2B |
| MICROSOFT CORPMSFT | 173 funds | $218.7B |
| META PLATFORMS INC-CLASS AMETA | 171 funds | $94.2B |
| BROADCOM INCAVGO | 165 funds | $125.3B |
| VISA INC-CLASS A SHARESV | 163 funds | $56.3B |
| APPLE INCAAPL | 162 funds | $237.7B |
| MASTERCARD INC - AMA | 159 funds | $46.9B |
| ADVANCED MICRO DEVICESAMD | 159 funds | $31.7B |
| JPMORGAN CHASE & COJPM | 158 funds | $54.5B |
| MICRON TECHNOLOGY INCMU | 157 funds | $31.9B |
Ranked by how many of MDLN's institutional holders also hold each name, a cross-fund conviction signal.
| Date | Insider | Role | Action | Shares | Value |
|---|---|---|---|---|---|
| Aug 14, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 100K | $3.6M |
| Aug 13, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 1.5M | $53.7M |
| Aug 7, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 590K | $21.0M |
| Aug 6, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 272K | $9.6M |
| Aug 5, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 1.7M | $60.7M |
| Aug 5, 2026 | GIC Private Ltd | 10% Owner | Sell (S) | 266K | $9.7M |
| Jun 16, 2026 | Golwas Douglas P | Chief Commercial Officer, 10% Owner | Sell (S) | 62K | $2.3M |
| Jun 16, 2026 | Golwas Douglas P | Chief Commercial Officer, 10% Owner | Sell (S) | 38K | $1.4M |
| Jun 5, 2026 | CORCORAN JESSI L | Principal Accounting Officer | Buy (P) | 5K | $171K |
| May 28, 2026 | BX Mozart ML-2 Holdco L.P. | 10% Owner | Sell (S) | 19.7M | $720.2M |
| May 28, 2026 | BX Mozart ML-2 Holdco L.P. | 10% Owner | Sell (S) | 9.9M | $360.2M |
| May 28, 2026 | BX Mozart ML-2 Holdco L.P. | 10% Owner | Sell (S) | 2.3M | $82.5M |
Connected entities for MDLN
This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/stocks/MDLN/capital-change-brief"
Use Arkolith's capital_change_brief for MDLN. Tell me what changed, whether insider activity corroborates it, and cite the SEC evidence.
13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MDLN. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.