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144 ·Filed Oct 6, 2026

ARTV

Artiva Biotherapeutics, Inc.
NEUTRAL
Impact 3/10
Horizondays Processed22d 22h ago SEC0001950047-26-010072
Form 144, notice of proposed sale of securities
Actionable Insight • Neutral

The proposed sale is small and routine for an insider with RSU vesting. Monitor for actual sale execution on Form 4, but no immediate catalyst. The 10b5-1 plan suggests the sale is pre-planned and not opportunistic.

DirectionNeutral
Confidencemedium
Horizondays
Latest settled: T+5d
ARTV ▼ -15.57% at T+5d
NEUTRAL call -15.57% · α vs SPY -14.59% · entry $7.00 → $5.91
Next anchor: T+20d in 5d
Latest observation: T+15 -39.60% FF3 residual α
Entry = T+0 close
Oct 6, 2026
via day close
T+1d
-2.86%
call -2.86% · α -2.43%
$6.80
settled 22d ago
T+5d
-15.57%
call -15.57% · α -14.59%
$5.91
settled 16d ago
T+20d
Pending
in 5d
T+60d
Pending
in 2mo

Price Chart

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Executive Summary

Fred Aslan, a Director and Officer of Artiva Biotherapeutics, filed a Form 144 notice of intent to sell 34,465 shares of common stock, with an estimated aggregate market value of approximately $245,735. The shares were acquired via vesting of restricted stock units between August 2025 and October 2026. The proposed sale is relatively small relative to the issuer's market cap and appears to be a routine diversification move, not a signal of distress.

Key Facts

  • Fred Aslan (Director and Officer) filed Form 144 to sell 34,465 shares of common stock.
  • Estimated aggregate market value of the proposed sale is approximately $245,735.
  • Shares were acquired upon vesting of restricted stock units from August 2025 through October 2026.
  • The filing is an advance notice of intent to sell; the sale may or may not occur.
  • The filing references a 10b5-1 trading plan for the seller.

Financial Impact

Proposed sale of 34,465 shares valued at ~$245,735, which is a small fraction of the issuer's market cap.

dilution

Risk Factors

  • Insider selling, even if pre-planned, can be perceived negatively by the market if the stock is under pressure.
  • The filing does not disclose the exact number of shares held by the insider, so the proportional impact is unclear.

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001950047-26-010072
Document: 0001950047-26-010072-index.html0001950047-26-010072
Document: 0001950047-26-010072.txt0001950047-26-010072
31 reports for ARTV
Performance horizon
69% Hit rate @ T+20 11 of 16 directional calls Went positive at some point 15 of 17 best @ T+60▲ +66.32%Jun 8, 2026
Filters
Rows
Reports for ARTV, sortable and filterable
TypeNow
Oct 27, 2026
2d ago
8-K
BEARISH ★ 6/10
$4.27awaiting T+20awaiting T+20$4.20 (+1.52%)
Oct 6, 2026
22d ago
144
NEUTRAL ★ 3/10
$7.00awaiting T+20awaiting T+20$4.20 (−39.93%)
Sep 11, 2026
6w ago
8-K
NEUTRAL ★ 3/10
$10.14 $6.77▼ −33.23%▼ −35.50%$4.20 (−58.53%)
Sep 9, 2026
7w ago
Insider Cluster
NEUTRAL ★ 4/10
$10.42 $6.80▼ −34.74%▼ −37.12%$4.20 (−59.64%)
Sep 9, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$10.42 $6.80▼ −34.74%▼ −37.12%$4.20 (−59.64%)
Sep 9, 2026
7w ago
Insider Cluster
NEUTRAL ★ 4/10
$10.42 $6.80▼ −34.74%▼ −37.12%$4.20 (−59.64%)
Sep 9, 2026
7w ago
Insider Cluster
NEUTRAL ★ 3/10
$10.42 $6.80▼ −34.74%▼ −37.12%$4.20 (−59.64%)
Sep 9, 2026
7w ago
Insider Cluster
BEARISH ★ 5/10
$10.42 $6.80▲ +34.74%▲ +37.12%$4.20 (+59.64%)
Sep 4, 2026
7w ago
Insider Cluster
NEUTRAL ★ 2/10
$10.88 $7.27▼ −33.18%▼ −35.15%$4.20 (−61.35%)
Sep 4, 2026
7w ago
Insider Cluster
BEARISH ★ 4/10
$10.88 $7.27▲ +33.18%▲ +34.89%$4.20 (+61.35%)
Showing 10 of 31

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Report published Oct 6, 2026