Skip to main content

SNDX

Syndax Pharmaceuticals Inc

Company with tickers: SNDX

CIK
1395937
CUSIP
87164F105
Shares Outstanding
88,610,027
13F Activity (30d)
120 filings 118 filers

Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.

Off-Exchange Volume History

Week Start ATS Volume Non-ATS OTC Volume Total Off-Exchange % of FINRA Weekly Volume
2026-05-04 2,954,665 1,121,840 4,076,505 52.9%
2026-04-27 3,047,974 2,197,832 5,245,806 48.2%
2026-04-20 2,406,572 1,201,424 3,607,996 50.2%
2026-04-13 1,199,793 1,069,860 2,269,653 46.2%
2026-04-06 1,454,563 904,757 2,359,320 38.4%
2026-03-30 2,301,598 1,719,880 4,021,478 61.0%
2026-03-23 1,630,869 1,198,041 2,828,910 45.4%
2026-03-16 2,188,319 1,426,948 3,615,267 45.5%
2026-03-09 2,243,309 1,721,867 3,965,176 44.6%
2026-03-02 1,566,538 1,042,481 2,609,019 40.4%
2026-02-23 1,829,436 760,420 2,589,856 40.6%
2026-02-16 1,100,834 751,993 1,852,827 43.4%
2026-02-09 1,399,240 1,596,856 2,996,096 48.0%
2026-02-02 1,537,460 1,072,699 2,610,159 41.5%
2026-01-26 1,761,016 1,840,493 3,601,509 50.7%
2026-01-19 1,020,290 825,944 1,846,234 39.8%
2026-01-12 1,418,094 969,349 2,387,443 39.6%
2026-01-05 1,886,461 1,040,083 2,926,544 37.9%
2025-12-29 846,872 664,189 1,511,061 37.8%
2025-12-22 981,047 713,736 1,694,783 40.1%
2025-12-15 2,059,860 1,061,802 3,121,662 38.5%
Showing 1–21 of 21 weeks