Monitor GOSS stock price closely over the next 10 trading days. If the stock fails to close above $1.00 for 10 consecutive business days by October 5, 2026, delisting risk becomes acute. The 1-for-80 ratio is aggressive and suggests the stock was trading near $0.0125 pre-split, indicating severe distress. A failure to regain compliance would likely trigger a further sell-off.
Price Chart
Executive Summary
Gossamer Bio effected a 1-for-80 reverse stock split and reduced authorized shares from 4 billion to 50 million to regain Nasdaq compliance. The stock begins split-adjusted trading on September 11, 2026, with a compliance deadline of October 5, 2026. This is a mechanical recapitalization with no change to proportional ownership, but it signals the company is at risk of delisting if the bid price does not stay above $1.00 for 10 consecutive days.
Key Facts
- 1-for-80 reverse stock split effective September 10, 2026
- Authorized common shares reduced from 4,000,000,000 to 50,000,000
- Nasdaq compliance deadline is October 5, 2026; stock must close at $1.00+ for 10 consecutive business days
- No fractional shares issued; rounding up to nearest whole share
- Conversion rates on 5.00% Convertible Senior Notes due 2027 and 7.50% Convertible Senior Secured First Lien Notes due 2030 proportionally adjusted
- Outstanding warrants, prefunded warrants, and equity awards proportionally adjusted
- Trading symbol remains GOSS; new CUSIP 38341P 201
- Market cap ~$70M; stock has been trading below $1.00, triggering the need for the reverse split
Financial Impact
No direct financial impact; reverse split is a mechanical share consolidation. However, failure to maintain $1.00 bid price could result in delisting, which would materially impair liquidity and access to capital.
Risk Factors
- Failure to maintain $1.00 bid price for 10 consecutive days by October 5, 2026, leading to Nasdaq delisting
- Reverse stock split may not result in sustained price increase; stock could decline post-split
- Potential loss of liquidity and access to capital markets if delisted
- Aggressive 1-for-80 ratio signals severe financial distress and low investor confidence
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 6 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 8-K Filing (Primary) | 0001728117-26-000094 |
| Exhibit: ex991revstockspliteffectiv.htm | 0001728117-26-000094 |
| Exhibit: ex31charteramendment.htm | 0001728117-26-000094 |
| Document: 0001728117-26-000094-index-headers.html | 0001728117-26-000094 |
| Document: 0001728117-26-000094-index.html | 0001728117-26-000094 |
| Document: 0001728117-26-000094.txt | 0001728117-26-000094 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 8, 2026 18d ago | SC 13D/A | $9.31 | awaiting T+20 | — | $9.46 (−1.61%) |
Sep 28, 2026 28d ago | SC 13D/A | $11.58 | awaiting T+20 | — | $9.46 (+18.31%) |
Sep 22, 2026 4w ago | Institutional Cluster | $11.69 $9.58 | ▼ −18.05% | ▼ −17.49% | $9.46 (−19.08%) |
Sep 16, 2026 5w ago | 8-K | $11.94 $8.89 | ▼ −25.54% | ▼ −26.75% | $9.46 (−20.77%) |
Sep 11, 2026 6w ago | 8-K | $10.73 $9.31 | ▲ +13.23% | ▲ +15.10% | $9.46 (+11.84%) |
Sep 9, 2026 6w ago | 8-K | $0.1597 $0.1273 | ▼ −20.32% | ▼ −22.26% | $9.46 (+5823.61%) |
Aug 21, 2026 9w ago | 8-K | $0.1547 $0.1410 | ▲ +8.86% | ▲ +9.87% | $9.46 (−6015.06%) |
Aug 13, 2026 10w ago | 8-K | $0.1542 $0.1337 | ▼ −13.26% | ▼ −11.27% | $9.46 (+6034.89%) |
Jul 1, 2026 16w ago | 8-K | $0.1677 $0.1783 | ▼ −6.32% | ▼ −6.87% | $9.46 (−5541.03%) |
Jun 17, 2026 18w ago | 8-K | $0.1790 $0.1701 | ▲ +4.97% | ▲ +5.29% | $9.46 (−5184.92%) |
US Market Status
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