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144 ·Filed May 27, 2026

VSTM

Verastem, Inc.
NEUTRAL
Impact 3/10
Horizondays Processed5mo ago SEC0001974158-26-000070
Form 144 — notice of proposed sale of securities
Actionable Insight • Neutral

The sale is small relative to market cap and appears to be routine equity monetization by a director. Monitor for any subsequent Form 4 filings to confirm execution. No immediate trading catalyst.

DirectionNeutral
Confidencemedium
Horizondays
Final — all horizons settled through T+60d
VSTM ▲ +60.61% at T+60d
NEUTRAL call +60.61% · α vs SPY +58.87% · entry $4.29 → $6.89
Entry = T+0 close
May 27, 2026
via day close
T+1d
+0.93%
call +0.93% · α +0.69%
$4.33
settled 5mo ago
T+5d
-15.62%
call -15.62% · α -15.57%
$3.62
settled 5mo ago
T+20d
-11.89%
call -11.89% · α -8.74%
$3.78
settled 4mo ago
T+60d
+60.61%
call +60.61% · α +58.87%
$6.89
settled 2mo ago

Price Chart

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Executive Summary

Director Robert Gagnon filed a Form 144 to sell 20,103 shares of Verastem common stock, with an estimated aggregate market value of approximately $87,649. The shares were acquired through vested RSUs between December 2020 and March 2026. This is a relatively small sale relative to the company's $383M market cap, but the filing signals insider intent to monetize vested equity.

Key Facts

  • Director Robert Gagnon filed Form 144 to sell 20,103 shares of Verastem common stock.
  • Estimated aggregate market value of the proposed sale is approximately $87,649.
  • Shares were acquired upon vesting of restricted stock units between December 2020 and March 2026.
  • The sale is planned through Jefferies LLC on Nasdaq.
  • The filing date is May 27, 2026.

Financial Impact

Approximately $87,649 in shares proposed for sale, representing ~0.02% of Verastem's $383M market cap.

dilution

Risk Factors

  • Insider selling may signal lack of confidence if followed by larger sales or other insider activity.
  • The sale is not yet executed; the insider may choose not to sell.

Market Snapshot

Exchange
Nasdaq
Sector
Pharmaceutical Preparations
Analyst Consensus
93% bullish (15 analysts)

Investment Themes

Documents Analyzed

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

DocumentAccession Number
144 Filing (Primary)0001974158-26-000070
Document: 0001974158-26-000070-index.html0001974158-26-000070
Document: 0001974158-26-000070.txt0001974158-26-000070
12 reports for VSTM
Performance horizon
100% Hit rate @ T+60 3 of 3 directional calls Went positive at some point 8 of 8 best @ T+60▲ +97.07%Jun 11, 2026
Filters
Rows
Reports for VSTM — sortable, filterable
TypeNow
Oct 14, 2026
12d ago
8-K
BEARISH ★ 6/10
$9.23awaiting T+60—$10.10 (−9.43%)
Oct 14, 2026
12d ago
424B5
BEARISH ★ 6/10
$9.23awaiting T+60—$10.10 (−9.43%)
Oct 14, 2026
12d ago
424B5
BEARISH ★ 6/10
$9.23awaiting T+60—$10.10 (−9.43%)
Oct 14, 2026
13d ago
8-K
BULLISH ★ 7/10
$7.71awaiting T+60—$10.10 (+31.00%)
Oct 2, 2026
24d ago
Insider Cluster
BEARISH ★ 5/10
$8.00awaiting T+60—$10.10 (−26.25%)
Jun 23, 2026
17w ago
8-K
BULLISH ★ 6/10
$3.85 $7.55▲ +96.10%▲ +93.27%$10.10 (+162.34%)
Jun 17, 2026
18w ago
8-K
BULLISH ★ 6/10
$4.17 $7.32▲ +75.54%▲ +72.39%$10.10 (+142.21%)
Jun 11, 2026
19w ago
Institutional Cluster
BULLISH ★ 5/10
$4.10 $8.08▲ +97.07%▲ +93.81%$10.10 (+146.34%)
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$3.94 $8.20▲ +108.12%▲ +103.73%$10.10 (+156.35%)
May 27, 2026
21w ago
3
NEUTRAL ★ 2/10
$4.29 $6.89▲ +60.61%▲ +58.87%$10.10 (+135.43%)
Showing 10 of 12

US Market Status

Market Closed — Opens Wed (17h 28m)

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Report published May 27, 2026