# Yarrow Bioscience, Inc. Common Stock (YARW)

> Yarrow Bioscience, Inc. Common Stock (YARW) trades at $19.90 (-0.50%) as of 7:30:01 PM EDT on Oct 30, 2026, -15.68% over the past month. Market cap is $167.94M, with 1.3 days to cover in short interest.

Canonical: https://massive.com/quote/yarw
Data as of: 2026-10-30T23:30:01.948Z (15-minute delayed)
Source: Massive (https://massive.com/docs/llms.txt)

## Price

**$19.90** -0.10 (-0.50%)
As of 7:30:01 PM EDT on Oct 30, 2026 · 15-minute delayed
Nasdaq · usd

## Stock performance

How Yarrow Bioscience, Inc. Common Stock (YARW) stock has performed from one day to one year, with its 52-week range.

| Period | Return |
| --- | --- |
| 1D | -0.50% |
| 1W | +3.27% |
| 1M | -15.68% |
| YTD | -29.06% |
| 1Y | -29.06% |
| 52-wk range | $18.05 – $44.28 |

From daily closes through Oct 30, 2026.

## Key statistics

Today's trading snapshot for YARW: day range, open, previous close, volume and market cap.

| Measure | Value |
| --- | --- |
| Day range | $19.28 – $20.61 |
| Open | $19.96 |
| Prev close | $20.00 |
| Volume | 288.95K |
| Market cap | $167.94M |
| Shares out | 2.67M |

## Insider trading

[Yarrow Bioscience, Inc. Common Stock (YARW) insider trading](https://massive.com/quote/yarw/insider-trading.md): open-market Form 4 buys and sells by Yarrow Bioscience, Inc. Common Stock insiders over the last 12 months.

## 8-K filings

Material corporate events Yarrow Bioscience, Inc. Common Stock has disclosed to the SEC on Form 8-K.

- Sep 14, 2026 · Underwriting agreement
  “On September 10, 2026, Yarrow Bioscience, Inc. ... entered into an underwriting agreement ... with Jefferies LLC, TD Securities (USA) LLC and Guggenheim Securities, LLC, as the representatives of the underwriters named therein.”
- Sep 10, 2026 · [Merger completion](https://massive.com/quote/sec-filings/8-k/mergers.md)
  “This Current Report on Form 8-K updates Part I, Item 1 – Business of the Annual Report ... to reflect the merger between the Company and Yarrow Bioscience Operating Company Corp. (formerly known as Yarrow Bioscience, Inc.).”
- Jul 30, 2026 · Warrant or conversion
  “the Stockholder agreed to exchange an aggregate of 133,290 shares of the Company's common stock for pre-funded warrants (the 'Pre-Funded Warrants') to purchase an aggregate of 133,290 shares of Common Stock at an exercise price of $0.0001 per share. Each Pre-Funded Warrant will be immediately exercisable and will expire when exercised in full.”
- Jul 28, 2026 · Director departure
  “In accordance with the Merger Agreement, at the Effective Time, all of the Company's directors resigned from the Board and any respective committee of the Board of which they were members. The resignations were not the result of any disagreements with the Company relating to the Company's operations, policies or practices.”

## YARW short interest

How heavily YARW is shorted: shares short, days to cover and average daily volume.

| Measure | Value |
| --- | --- |
| Days to cover | 1.3 |
| Short interest | 131.99K |
| Avg volume | 101.64K |

As of Oct 15, 2026 · reported to FINRA twice monthly.

## About Yarrow Bioscience, Inc. Common Stock

Yarrow Bioscience Inc is a clinical-stage biopharmaceutical company focused on developing biotherapeutics for autoimmune thyroid diseases. Its flagship product candidate, YB-101 (also known as GenSci098), is a humanized, monoclonal antibody targeting the thyroid-stimulating hormone receptor, which Yarrow plans to develop for the treatment of Graves' disease (GD) and potentially thyroid eye disease (TED). The company has one reportable segment relating to the research and development of its research programs, GD and TED.

| Measure | Value |
| --- | --- |
| Exchange | Nasdaq |
| Market | stocks |
| Type | CS |
| Currency | USD |
| Industry | PHARMACEUTICAL PREPARATIONS |
| Listed | Jul 28, 2026 |

[Company website](https://www.yarrowbioscience.com)

## FAQ

### What is the Yarrow Bioscience, Inc. Common Stock (YARW) stock price today?

Yarrow Bioscience, Inc. Common Stock (YARW) is trading at $19.90 (-0.50% on the day) as of 7:30:01 PM EDT on Oct 30, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

### What is Yarrow Bioscience, Inc. Common Stock?

Yarrow Bioscience Inc is a clinical-stage biopharmaceutical company focused on developing biotherapeutics for autoimmune thyroid diseases. Its flagship product candidate, YB-101 (also known as GenSci098), is a humanized, monoclonal antibody targeting the thyroid-stimulating…

### What is the short interest in YARW?

As of Oct 15, 2026, YARW has 131.99K shares short and 1.3 days to cover.

### What exchange is YARW listed on?

Yarrow Bioscience, Inc. Common Stock (YARW) trades on Nasdaq in USD, in the PHARMACEUTICAL PREPARATIONS industry.

## Live data

Prices here are 15-minute delayed. For real-time YARW quotes and the full history behind this page, use the Massive API or MCP server:

- `GET https://api.massive.com/v3/snapshot?ticker.any_of=YARW`

Requests need a Massive API key. API reference for agents: https://massive.com/docs/llms.txt. Connect an AI agent through the Massive MCP server: https://massive.com/docs/ai-tools.

## Related

- [Yarrow Bioscience, Inc. Common Stock (YARW) insider trading](https://massive.com/quote/yarw/insider-trading.md)
- [SEC 8-K events](https://massive.com/quote/sec-filings/8-k.md)
- [Markets overview](https://massive.com/quote/index.md)

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