Monitor for any conversion of warrants into common shares, which would increase Alta's stake. The passive certification limits near-term activist pressure, but the warrant component introduces potential future dilution.
Price Chart
Executive Summary
Alta Partners LLC filed an amended Schedule 13G disclosing a passive 3.1% stake in C3is Inc., consisting of 12,000 common shares and 34,773 shares issuable upon exercise of warrants. This is a new filing for this investor, not a change from a prior stake, and the passive certification limits activist risk.
Key Financial Metrics
Key Facts
- Alta Partners LLC reports beneficial ownership of 46,773 shares (3.1% of common stock) as of August 26, 2026.
- Stake comprises 12,000 shares of common stock and 34,773 shares issuable upon exercise of warrants.
- Filer certifies passive intent under Rule 13d-1(c) — securities not held for control purposes.
- This is an initial filing for Alta Partners; no prior stake to compare.
Financial Impact
3.1% stake with warrants — no dollar value disclosed; warrants add potential dilution but are held by a passive filer.
Risk Factors
- Warrant exercise could increase dilution if Alta converts.
- No financial details on warrant terms or exercise price provided.
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0001094891-26-000295 |
| Document: 0001094891-26-000295-index.html | 0001094891-26-000295 |
| Document: 0001094891-26-000295.txt | 0001094891-26-000295 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 19, 2026 7d ago | EFFECT | $0.5490 | awaiting T+60 | — | $0.5100 (+7.10%) |
Oct 19, 2026 7d ago | EFFECT | $0.5490 | awaiting T+60 | — | $0.5100 (+7.10%) |
Oct 19, 2026 7d ago | EFFECT | $0.5490 | awaiting T+60 | — | $0.5100 (+7.10%) |
Oct 5, 2026 21d ago | SC 13G/A | $0.8890 | awaiting T+60 | — | $0.5100 (−42.63%) |
Oct 5, 2026 21d ago | SC 13G/A | $0.8630 | awaiting T+60 | — | $0.5100 (+40.90%) |
Oct 2, 2026 24d ago | SC 13G/A | $0.8310 | awaiting T+60 | — | $0.5100 (+38.63%) |
Sep 29, 2026 27d ago | 6-K | $0.9502 | awaiting T+60 | — | $0.5100 (−46.33%) |
Aug 17, 2026 10w ago | 6-K | $0.0685 | awaiting T+60 | — | $0.5100 (+644.53%) |
Jul 23, 2026 13w ago | F-1/A | $0.5201 $0.0137 | ▲ +97.36% | ▲ +101.09% | $0.5100 (+1.94%) |
Jul 22, 2026 13w ago | 6-K | $0.9620 $0.0133 | ▼ −98.61% | ▼ −102.01% | $0.5100 (−46.99%) |
US Market Status
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