MACROGENICS INC MGNX
CIK 0001125345 · CUSIP 556099109
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | Bellevue Group AG CIK 1674546 · View history | $12.61M 9,929,963 shares | 0.28% | 0(0.00%)Unchanged | SEC filing ↗ May 14, 2025 | ▾ |
| 02 | ARMISTICE CAPITAL, LLC CIK 1601086 · View history | $8.00M 6,296,000 shares | 0.21% | +20.00K(+0.30%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 03 | BlackRock, Inc. CIK 2012383 · View history | $6.24M 4,913,128 shares | 0.00% | -144.05K(-2.80%)Reduced | SEC filing ↗ May 2, 2025 | ▾ |
| 04 | VANGUARD GROUP INC CIK 102909 · View history | $5.62M 4,425,992 shares | 0.00% | +109.31K(+2.50%)Added | SEC filing ↗ May 9, 2025 | ▾ |
| 05 | WASATCH ADVISORS LP CIK 814133 · View history | $4.13M 3,250,248 shares | 0.02% | -238.25K(-6.80%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 06 | Frazier Life Sciences Management, L.P. CIK 1892134 · View history | $4.03M 3,175,665 shares | 0.18% | 0(0.00%)Unchanged | SEC filing ↗ May 15, 2025 | ▾ |
| 07 | ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history | $2.92M 2,308,649 shares | 0.01% | +1.02M(+78.80%)Added | SEC filing ↗ May 21, 2025 | ▾ |
| 08 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $2.19M 1,724,250 shares | 0.00% | -1.14M(-39.80%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 09 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $1.85M 1,456,188 shares | 0.00% | +22.97K(+1.60%)Added | SEC filing ↗ May 13, 2025 | ▾ |
| 10 | STATE STREET CORP CIK 93751 · View history | $1.79M 1,409,312 shares | 0.00% | -53.22K(-3.60%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 11 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $1.46M 1,152,270 shares | 0.00% | +613.75K(+114.00%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 12 | Rock Springs Capital Management LP CIK 1595725 · View history | $1.45M 1,145,214 shares | 0.08% | +91.57K(+8.70%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 13 | TWO SIGMA ADVISERS, LP CIK 1478735 · View history | $1.36M 1,068,200 shares | 0.00% | -50.40K(-4.50%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 14 | Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history | $1.04M 816,054 shares | 0.00% | +71.15K(+9.60%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 15 | JPMORGAN CHASE & CO CIK 19617 · View history | $946.23K 745,062 shares | 0.00% | +198.25K(+36.30%)Added | SEC filing ↗ May 12, 2025 | ▾ |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $845.00K 665,351 shares | 0.00% | +99.45K(+17.60%)Added | SEC filing ↗ May 15, 2025 | ▾ |
| 17 | TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history | $831.72K 654,898 shares | 0.00% | -205.85K(-23.90%)Reduced | SEC filing ↗ May 15, 2025 | ▾ |
| 18 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $819.84K 645,625 shares | 0.00% | -71.66K(-10.00%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
| 19 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $667.43K 525,535 shares | 0.00% | -1.65K(-0.30%)Reduced | SEC filing ↗ Sep 15, 2025 | ▾ |
| 20 | NORTHERN TRUST CORP CIK 73124 · View history | $662.01K 521,269 shares | 0.00% | -19.70K(-3.60%)Reduced | SEC filing ↗ May 13, 2025 | ▾ |
Showing 20 / 130 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 130 reporting institutions.
This page includes 20 of 130 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 130 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.
MCP https://api.akkrudata.ai/mcp
akkru_institutional_holdings
{"action":"holders","cusip":"556099109","quarter":"2025Q1","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP / CLI documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.