---
title: "C3is surges 35% in regular trading on new institutional filings"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/295000435.md"
description: "C3is (CISS) soared 35% to $0.119 after SEC filings showed Alta Partners took an 8.2% stake and CVI Investments disclosed a 9.9% position."
datetime: "2026-08-05T18:29:25.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/295000435.md)
  - [en](https://longbridge.com/en/news/295000435.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/295000435.md)
---

# C3is surges 35% in regular trading on new institutional filings

C3is(CISS.US) 盘中急涨，当日涨超 35%，现报 0.119 美元。该股在 5 分钟内出现超 3% 的快速拉升。

消息面上，SEC 文件显示多家机构新建仓 C3is。Alta Partners LLC 获得 8.2% 的股份，CVI Investments Inc.披露持有 9.9% 的仓位。公司此前已完成 600 万美元的注册单位融资，附带可重置的 F 类认股权证，行权价在 0.52 美元至 0.26 美元之间。

C3is 于 07/28/2026 完成该次融资后，股价波动剧烈。08/05/2026 盘前该股一度涨超 57%，随后在常规交易中回落 32% 至 0.12 美元附近。08/04/2026 盘中该股曾跌超 21%。该股近期波动较大，成交量显著高于平均水平。

### Related Stocks

- [CISS.US](https://longbridge.com/en/quote/CISS.US.md)

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