---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-22-026546"
form_type: "8-K"
ticker: "SNDX"
cik: "0001395937"
company_name: "Syndax Pharmaceuticals Inc"
filed_at: "2022-12-14T23:59:59+00:00"
generated_at: "2026-06-21T04:39:55.223083+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Syndax closes $172.5M public offering; shares outstanding ~68.1M

## Summary
- Gross proceeds of $172.5M from 7,840,909 shares at $22.00 per share.
- Underwriters exercised full overallotment for 1,022,727 additional shares.
- Goldman Sachs, J.P. Morgan and Cowen acted as joint book-running managers.
- Shares outstanding after offering stand at 68,100,918 as of December 14, 2022.

## SEC filing metadata
- accession: 0000950170-22-026546
- form_type: 8-K
- ticker: SNDX
- cik: 0001395937
- company_name: Syndax Pharmaceuticals Inc
- filed_at: 2022-12-14T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1395937/000095017022026546/0000950170-22-026546-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1395937/000095017022026546/sndx-20221214.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-22-026546
- JSON: https://secwatch.observer/filing/0000950170-22-026546.json
- Plain text: https://secwatch.observer/filing/0000950170-22-026546.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.