$ARTV

Banerjee Subhashis sold $99K of ARTV

Banerjee Subhashis (Chief Medical Officer) sold 8,222 shares of Artiva Biotherapeutics, Inc. (ARTV) at $12.01 on 2026-08-27 under a Rule 10b5-1 trading plan.

Original reporting
SEC EDGAR · Banerjee Subhashis
Published Aug 31, 2026, 11:06 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Aug 31, 2026, 11:17 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefInsider activity
Primary signal
$ARTV
Neutral
medium confidence
Mentioned
$ARTV
Relevance
2/10
AlphAI data visualization · based on SEC EDGAR
Decision brief

The 30-second read

$ARTVNeutralLow
01

Why it matters

The transaction is a routine 10b5‑1 sale; market reaction is expected to be minimal.

02

Market read

Small insider sale with limited price impact; primarily of interest to shareholders monitoring insider activity.

03

What to watch

Potential upcoming clinical trial results or partnership announcements that could offset the sale impact.

Relevance 2/10Novelty 2/10Timing: post‑market 2026‑08‑27

Background

Form 4 filing discloses insider transactions required by SEC regulations.

Company-level read

Ticker impact

$ARTVNeutralMedium confidence
Context

Chief Medical Officer sold 8,222 shares for $98,735, reducing his stake to 142,047 shares.

Expected impact

minor downward pressure, likely within normal volatility range

Evidence & confidence

Sale size is under $100k and represents a modest percentage of holdings; market typically discounts such routine 10b5‑1 sales.

Market effects

No immediate sector impact; biotech peers unlikely to be affected.

U.S. market only; no regional ripple.

Limited global relevance.

Counterpoint

If the CMO is privy to upcoming positive data, the sale could be a pre‑emptive cash‑out before a catalyst.

Key entities

  • Artiva Biotherapeutics, Inc.

    Biotech firm developing therapies for rare diseases.

  • Banerjee Subhashis

    Chief Medical Officer of Artiva Biotherapeutics.

Full insider trading history

This story covers one filing. See everything behind it: every insider buy and sell on record, 10b5-1 plans, late filings, and which officers and directors are trading.

Related articles

$ARTVLow

Artiva Biotherapeutics, Inc. (ARTV): Results of Operations and Financial Condition

Artiva Biotherapeutics, Inc. (ARTV) filed an SEC Form 8-K — Results of Operations and Financial Condition. Exhibit 99.1 Artiva Biotherapeutics Announces Strategic Update and Discontinues Development of AlloNK ® • Company halting further development of AlloNK ® (AB-101), including the planned phase 3 pivotal trial • Updated deep B cell depletion and clinical response data is consistent

$ARTVHighAI 8/10

Why is Artiva Biotherapeutics stock collapsing today?

Artiva Biotherapeutics' stock fell 30% after halting AlloNK (AB-101) development due to safety events and poor clinical data. The company plans to cut 94% of its workforce and explore strategic alternatives, including liquidation. CEO and COO sold shares before the announcement. Artiva had $319.1M in cash as of September 30. The stock traded at $4.31, far below its 52-week high of $14.53.