Quanterix Corp QTRX
CIK 0001503274 · CUSIP 74766Q101
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 | ALLIANCEBERNSTEIN L.P. CIK 1109448 · View history | $42.32M 3,265,603 shares | 0.01% | -149.19K(-4.40%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 02 | BlackRock, Inc. CIK 2012383 · View history | $41.61M 3,210,916 shares | 0.00% | — | SEC filing ↗ Nov 13, 2024 | ▾ |
| 03 | Portolan Capital Management, LLC CIK 1350290 · View history | $32.67M 2,520,686 shares | 2.37% | +602.66K(+31.40%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 04 | VANGUARD GROUP INC CIK 102909 · View history | $28.48M 2,197,839 shares | 0.00% | +153.89K(+7.50%)Added | SEC filing ↗ Nov 13, 2024 | ▾ |
| 05 | MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history | $26.73M 2,062,132 shares | 0.02% | +1.23M(+147.00%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 06 | AMERIPRISE FINANCIAL INC CIK 820027 · View history | $19.66M 1,517,248 shares | 0.01% | +208.03K(+15.90%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 07 | Granahan Investment Management, LLC CIK 1026710 · View history | $14.29M 1,102,631 shares | 0.56% | -26.86K(-2.40%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
| 08 | DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history | $11.50M 887,546 shares | 0.00% | -19.95K(-2.20%)Reduced | SEC filing ↗ Nov 7, 2024 | ▾ |
| 09 | EASTERLY INVESTMENT PARTNERS LLC CIK 1766150 · View history | $11.35M 876,133 shares | 0.91% | +183.39K(+26.50%)Added | SEC filing ↗ Nov 1, 2024 | ▾ |
| 10 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $11.13M 858,667 shares | 0.00% | +18.23K(+2.20%)Added | SEC filing ↗ Nov 12, 2024 | ▾ |
| 11 | STATE STREET CORP CIK 93751 · View history | $10.84M 836,443 shares | 0.00% | +18.05K(+2.20%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 12 | ASHFORD CAPITAL MANAGEMENT INC CIK 897070 · View history | $9.51M 734,115 shares | 1.19% | -37.19K(-4.80%)Reduced | SEC filing ↗ Nov 18, 2024 | ▾ |
| 13 | EMERALD ADVISERS, LLC CIK 1015083 · View history | $9.32M 719,217 shares | 0.36% | +38.23K(+5.60%)Added | SEC filing ↗ Oct 29, 2024 | ▾ |
| 14 | Kent Lake PR LLC CIK 2037231 · View history | $8.70M 671,500 shares | 3.46% | — | SEC filing ↗ Nov 14, 2024 | ▾ |
| 15 | BAILLIE GIFFORD & CO CIK 1088875 · View history | $8.20M 633,001 shares | 0.01% | -459(-0.10%)Reduced | SEC filing ↗ Nov 5, 2024 | ▾ |
| 16 | Nuveen Asset Management, LLC CIK 1521019 · View history | $7.87M 607,245 shares | 0.00% | +816(+0.10%)Added | SEC filing ↗ Nov 14, 2024 | ▾ |
| 17 | Tikvah Management LLC CIK 1606477 · View history | $7.41M 571,619 shares | 2.30% | 0(0.00%)Unchanged | SEC filing ↗ Nov 12, 2024 | ▾ |
| 18 | EMERALD MUTUAL FUND ADVISERS TRUST CIK 1352895 · View history | $7.30M 563,247 shares | 0.38% | +4.41K(+0.80%)Added | SEC filing ↗ Oct 29, 2024 | ▾ |
| 19 | Pier Capital, LLC CIK 1310051 · View history | $6.63M 511,798 shares | 0.93% | +97.26K(+23.50%)Added | SEC filing ↗ Nov 15, 2024 | ▾ |
| 20 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC CIK 861177 · View history | $6.62M 510,758 shares | 0.00% | -9.51K(-1.80%)Reduced | SEC filing ↗ Nov 14, 2024 | ▾ |
Showing 20 / 150 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 150 reporting institutions.
This page includes 20 of 150 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 150 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":"74766Q101","quarter":"2024Q3","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.