Sriram Vandana, CFO of Quanterix Corp ($QTRX), made one open market purchase of common shares worth $19,879 in the last 365 days, with the most recent on September 12, 2025. This ranks 3,859th among 4,983 insiders in our database, where the average purchase totals $1.46 million across 3.3 transactions. Vandana reported no open market sales during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Common Stock | 263 | $0.00 | 26,503.0000 | 46,710,797 | 1.00% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 93 | $4.72 | 26,410.0000 | 46,710,797 | 0.35% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Common Stock | 514 | $0.00 | 26,924.0000 | 46,710,797 | 1.95% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 181 | $4.72 | 26,743.0000 | 46,710,797 | 0.67% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Common Stock | 1056 | $0.00 | 27,799.0000 | 46,710,797 | 3.95% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 371 | $4.72 | 27,428.0000 | 46,710,797 | 1.33% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Restricted Stock Unit | 263 | $0.00 | 4,471.0000 | 46,710,797 | 5.56% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Restricted Stock Unit | 514 | $0.00 | 11,825.0000 | 46,710,797 | 4.17% | 0.00% |
| March 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Restricted Stock Unit | 1056 | $0.00 | 36,978.0000 | 46,710,797 | 2.78% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Restricted Stock Unit | 514 | $0.00 | 12,339.0000 | 46,710,797 | 4.00% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Common Stock | 514 | $0.00 | 26,248.0000 | 46,710,797 | 2.00% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 179 | $5.74 | 26,069.0000 | 46,710,797 | 0.68% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Common Stock | 263 | $0.00 | 26,332.0000 | 46,710,797 | 1.01% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 92 | $5.74 | 26,240.0000 | 46,710,797 | 0.35% | 0.00% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Performance Stock Unit | 74905 | $0.00 | 74,905.0000 | 46,710,797 | 9999.99% | 0.16% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Restricted Stock Unit | 74905 | $0.00 | 74,905.0000 | 46,710,797 | 9999.99% | 0.16% |
| Feb. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | M | Restricted Stock Unit | 263 | $0.00 | 4,734.0000 | 46,710,797 | 5.26% | 0.00% |
| Feb. 4, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 4395 | $0.00 | 81,618.0000 | 46,710,797 | 5.11% | 0.01% |
| Jan. 15, 2026 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 274 | $7.95 | 86,013.0000 | 46,710,797 | 0.32% | 0.00% |
| Dec. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $7.41 | 85,977.0000 | 46,710,797 | 0.27% | 0.00% |
| Nov. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $5.78 | 86,206.0000 | 46,710,797 | 0.26% | 0.00% |
| Oct. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $5.78 | 86,742.0000 | 38,776,208 | 0.26% | 0.00% |
| Sept. 12, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | P | Common Stock | 4150 | $4.79 | 87,200.0000 | 38,776,208 | 5.00% | 0.01% |
| Sept. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $4.97 | 86,971.0000 | 38,776,208 | 0.26% | 0.00% |
| Aug. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $4.57 | 83,050.0000 | 38,776,208 | 0.27% | 0.00% |
| July 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $5.49 | 83,279.0000 | 38,776,208 | 0.27% | 0.00% |
| June 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $6.06 | 83,508.0000 | 38,776,208 | 0.27% | 0.00% |
| May 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $4.50 | 83,737.0000 | 38,776,208 | 0.27% | 0.00% |
| April 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $5.36 | 83,966.0000 | 38,776,208 | 0.27% | 0.00% |
| March 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 229 | $7.06 | 84,195.0000 | 38,776,208 | 0.27% | 0.00% |
| Feb. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 92 | $8.05 | 84,424.0000 | 0 | 0.11% | 0.00% |
| Feb. 4, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Stock Option (right to buy) | 166119 | $0.00 | 166,119.0000 | 0 | 9999.99% | 0.00% |
| Feb. 4, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Common Stock | 50712 | $0.00 | 84,516.0000 | 0 | 150.02% | 0.00% |
| Feb. 2, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 2166 | $9.19 | 33,804.0000 | 0 | 6.02% | 0.00% |
| Jan. 15, 2025 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 93 | $8.62 | 35,970.0000 | 0 | 0.26% | 0.00% |
| Dec. 15, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 75 | $10.68 | 36,063.0000 | 0 | 0.21% | 0.00% |
| Nov. 15, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 78 | $11.44 | 36,138.0000 | 0 | 0.22% | 0.00% |
| Oct. 15, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 78 | $12.48 | 36,216.0000 | 0 | 0.21% | 0.00% |
| Sept. 15, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 78 | $12.82 | 36,294.0000 | 0 | 0.21% | 0.00% |
| Aug. 21, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | F | Common Stock | 927 | $13.15 | 36,372.0000 | 0 | 2.49% | 0.00% |
| Feb. 2, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Common Stock | 24675 | $0.00 | 37,299.0000 | 0 | 195.46% | 0.00% |
| Feb. 2, 2024 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Stock Option (right to buy) | 83038 | $0.00 | 83,038.0000 | 0 | 9999.99% | 0.00% |
| Aug. 21, 2023 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Common Stock | 12624 | $0.00 | 12,624.0000 | 0 | 9999.99% | 0.00% |
| Aug. 21, 2023 | Quanterix Corp | $QTRX | Sriram Vandana | Chief Financial Officer | A | Stock Option (right to buy) | 29455 | $0.00 | 29,455.0000 | 0 | 9999.99% | 0.00% |
| Jan. 31, 2023 | Azenta, Inc. | $AZTA | Sriram Vandana | SVP Finance & Corp. Controller | A | Common Stock | 369 | $46.92 | 6,356.0000 | 0 | 6.16% | 0.00% |