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144 ·Filed Oct 19, 2026

ELVN

Enliven Therapeutics, Inc.
NEUTRAL
Impact 2/10
Horizondays Processed8d 1h ago SEC0001974158-26-000109
Form 144 — notice of proposed sale of securities
Actionable Insight • Neutral

The sale is pre-planned under a 10b5-1 plan adopted a year ago, so it carries no new information about the company's prospects. Monitor for any subsequent Form 4 filings to confirm execution, but no immediate market impact is expected.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+5d
ELVN ▲ +5.92% at T+5d
NEUTRAL call +5.92% · α vs SPY +5.84% · entry $41.25 → $43.69
Next anchor: T+20d in 20d
Entry = T+0 close
Oct 19, 2026
via day close
T+1d
+1.38%
call +1.38% · α +0.86%
$41.82
settled 7d ago
T+5d
+5.92%
call +5.92% · α +5.84%
$43.69
settled yesterday
T+20d
Pending
in 20d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

Director Helen Collins filed a Form 144 notice of intent to sell 15,000 shares of Enliven Therapeutics (ELVN), with an estimated aggregate market value of $559,800. The sale is to be executed under a Rule 10b5-1 trading plan adopted on October 19, 2025, indicating the sale was pre-planned and not based on recent material non-public information. The filing is a routine advance notice by a director and does not convey new information about the company's operations or outlook.

Key Facts

  • Director Helen Louise Collins filed a Form 144 to sell 15,000 shares of Enliven Therapeutics common stock.
  • Estimated aggregate market value of the proposed sale is $559,800.
  • The sale is to be executed through Jefferies LLC.
  • The sale is made pursuant to a Rule 10b5-1 trading plan adopted on October 19, 2025.
  • The filing date is October 19, 2026.
  • The proposed sale represents approximately 0.02% of the company's 73,000,000 shares outstanding (based on the filing's stated outstanding share count).

Financial Impact

Proposed sale of 15,000 shares valued at $559,800, representing a small fraction of the company's market capitalization.

dilution

Risk Factors

  • Insider selling, even under a 10b5-1 plan, can be perceived negatively by some market participants.
  • The filing does not disclose the insider's remaining holdings, so the proportional significance of the sale is unclear.

Investment Themes

Documents Analyzed

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

DocumentAccession Number
144 Filing (Primary)0001974158-26-000109
Document: 0001974158-26-000109-index.html0001974158-26-000109
Document: 0001974158-26-000109.txt0001974158-26-000109
19 reports for ELVN
Performance horizon
40% Hit rate @ T+5 2 of 5 directional calls Went positive at some point 3 of 5 best @ T+60▲ +46.98%Jun 11, 2026
Filters
Rows
Reports for ELVN — sortable, filterable
TypeNow
Oct 27, 2026
today
SC 13G/A
NEUTRAL ★ 3/10
$41.80awaiting T+5—$43.69 (+4.52%)
Oct 21, 2026
6d ago
Insider Cluster
NEUTRAL ★ 3/10
$41.93awaiting T+5—$43.69 (+4.20%)
Oct 19, 2026
8d ago
144
NEUTRAL ★ 2/10
$41.25 $43.69▲ +5.92%▲ +5.84%$43.69 (+5.92%)
Oct 16, 2026
11d ago
3
NEUTRAL ★ 2/10
$38.70 $41.49▲ +7.21%▲ +7.35%$43.69 (+12.89%)
Oct 14, 2026
13d ago
8-K
NEUTRAL ★ 3/10
$39.33 $41.93▲ +6.61%▲ +7.63%$43.69 (+11.09%)
Sep 21, 2026
5w ago
Insider Cluster
NEUTRAL ★ 2/10
$48.19 $46.51▼ −3.49%▼ −2.30%$43.69 (−9.34%)
Sep 4, 2026
7w ago
144
NEUTRAL ★ 3/10
$59.32 $54.43▼ −8.24%▼ −7.03%$43.69 (−26.35%)
Aug 19, 2026
9w ago
Insider Cluster
NEUTRAL ★ 2/10
$58.97 $60.50▲ +2.59%▲ +1.48%$43.69 (−25.91%)
Aug 9, 2026
11w ago
Institutional Cluster
BULLISH ★ 6/10
$59.42 $59.54▲ +0.19%▲ +0.24%$43.69 (−26.47%)
Jul 21, 2026
14w ago
Insider Cluster
NEUTRAL ★ 2/10
$52.85 $52.97▲ +0.23%▲ +2.63%$43.69 (−17.33%)
Showing 10 of 19

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published Oct 19, 2026