QUANTERIX CORP · CUSIP 74766Q101 · CIK 1350290
As of 2026-06-30, Portolan Capital Management, LLC reported 1.90M QTRX (shares), valued at $8.21M, or 0.31% of its reported non-derivative portfolio. Filed 2026-08-14.
Verify history & sources →Shares decreased 35.53%; reported value decreased 20.87%, and weight changed -0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.
Left: % · Right: Shares · Independently scaled axes
Exact data and methodology
Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.
| Quarter | Weight | Quantity | Source |
|---|---|---|---|
| Q2 2026 | 0.31% | 1,899,308 | SEC filing ↗Filed Aug 14, 2026 |
| Q1 2026 | 0.55% | 2,945,823 | SEC filing ↗Filed May 15, 2026 |
| Q4 2025 | 1.54% | 4,525,553 | SEC filing ↗Filed Feb 17, 2026 |
| Q3 2025 | 1.25% | 4,259,851 | SEC filing ↗Filed Nov 13, 2025 |
| Q2 2025 | 1.52% | 3,633,622 | SEC filing ↗Filed Aug 13, 2025 |
| Q1 2025 | 1.47% | 2,963,397 | SEC filing ↗Filed May 15, 2025 |
| Q4 2024 | 1.85% | 2,587,824 | SEC filing ↗Filed Feb 13, 2025 |
| Q3 2024 | 2.37% | 2,520,686 | SEC filing ↗Filed Nov 14, 2024 |
| Q2 2024 | 2.09% | 1,918,030 | SEC filing ↗Filed Aug 14, 2024 |
| Q1 2024 | 2.09% | 1,162,829 | SEC filing ↗Filed May 15, 2024 |
| Q4 2023 | 3.10% | 1,297,090 | SEC filing ↗Filed Feb 14, 2024 |
History & evidence by quarter
| Quarter | Weight | Quantity | Value | Change explained | Source |
|---|---|---|---|---|---|
| Q4 2023 | 3.10% | 1,297,090 | $35.46M | The prior quarter is outside the free window. Sign in for the comparison. | SEC filing ↗ Filed Feb 14, 2024 |
| Q1 2024 | 2.09% | 1,162,829 | $27.40M | Shares decreased 10.35%; reported value decreased 22.75%, and weight changed -1.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2024 |
| Q2 2024 | 2.09% | 1,918,030 | $25.34M | Shares increased 64.95%; reported value decreased 7.52%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2024 |
| Q3 2024 | 2.37% | 2,520,686 | $32.67M | Shares increased 31.42%; reported value increased 28.93%, and weight changed +0.28 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 14, 2024 |
| Q4 2024 | 1.85% | 2,587,824 | $27.51M | Shares increased 2.66%; reported value decreased 15.79%, and weight changed -0.52 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 13, 2025 |
| Q1 2025 | 1.47% | 2,963,397 | $19.29M | Shares increased 14.51%; reported value decreased 29.87%, and weight changed -0.38 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2025 |
| Q2 2025 | 1.52% | 3,633,622 | $24.16M | Shares increased 22.62%; reported value increased 25.25%, and weight changed +0.05 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 13, 2025 |
| Q3 2025 | 1.25% | 4,259,851 | $23.13M | Shares increased 17.23%; reported value decreased 4.27%, and weight changed -0.27 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Nov 13, 2025 |
| Q4 2025 | 1.54% | 4,525,553 | $28.78M | Shares increased 6.24%; reported value increased 24.43%, and weight changed +0.29 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Feb 17, 2026 |
| Q1 2026 | 0.55% | 2,945,823 | $10.37M | Shares decreased 34.91%; reported value decreased 63.97%, and weight changed -0.99 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed May 15, 2026 |
| Q2 2026 | 0.31% | 1,899,308 | $8.21M | Shares decreased 35.53%; reported value decreased 20.87%, and weight changed -0.24 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds. | SEC filing ↗ Filed Aug 14, 2026 |
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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.