Cassava's stock tumbles again, after Quanterix said it 'did not' prepare data charts presented by Cassava, that are under dispute

Quanterix Corp. QTRX, +10.47% said that while it was previously engaged by Cassava Sciences Inc. SAVA, -24.66% to perform sample testing, the digitized biomarker analysis company said it, or its employees, "did not interpret the test results or prepare the data charts" presented by Cassava to the Alzheimer's Association International Conference (AAIC) in July, or otherwise.