SecBot SecBot
Institutional Cluster

VSTM

Verastem, Inc.
NEUTRAL
Impact 3/10
Horizonweeks Processed4mo ago
Institutional cluster: 3 buyers, 0 sellers (bullish)
Actionable Insight • Neutral

The cluster is entirely passive/index-driven, likely reflecting VSTM's inclusion or rebalancing in broad market indices. No active fundamental thesis is signaled. Monitor for any active manager 13F filings in subsequent quarters for a genuine signal.

DirectionNeutral
Confidencemedium
Horizonweeks
Final — all horizons settled through T+60d ⚠ clustered
VSTM ▲ +108.12% at T+60d
NEUTRAL call +108.12% · α vs SPY +103.73% · entry $3.94 → $8.20
Entry = T+0 close
Jun 11, 2026
via day close
T+1d
+4.06%
call +4.06% · α +3.52%
$4.10
settled 5mo ago
T+5d
+5.84%
call +5.84% · α +5.40%
$4.17
settled 4mo ago
T+20d
+37.06%
call +37.06% · α +35.16%
$5.40
settled 4mo ago
T+60d
+108.12%
call +108.12% · α +103.73%
$8.20
settled 7w ago

Executive Summary

Three mega-passive institutional investors (BlackRock, Fidelity, Morgan Stanley) collectively added $32.7M to their VSTM positions in Q3 2025, increasing holdings by 34-73%. The buying is entirely from passive/index funds, likely reflecting index rebalancing rather than an active fundamental thesis.

Key Financial Metrics

Direction
accumulating
Buy Value
$49.6M
Net Flow
$32.7M

Institutional Positions

Net institutional flow: $32.7M

▲ Buyers (3)

InstitutionActionChangePosition ValueValue Δ
BlackRockADD+34.7%$32.8M$21.4M
FidelityADD+72.5%$2.8M$2.1M
Morgan StanleyADD+41.1%$13.9M$9.3M

Key Facts

  • 3 passive institutions added $32.7M net to VSTM in Q3 2025
  • BlackRock increased position by 34.7% (now $32.8M), Fidelity +72.5% ($2.8M), Morgan Stanley +41.1% ($13.9M)
  • No institutional sellers detected in the cluster
  • All buyers are mega-passive/index funds — no active managers or hedge funds involved

Financial Impact

3 passive institutions accumulated $32.7M in new VSTM positions during Q3 2025, with total holdings reaching $49.6M

institutional ownershipfloat

Risk Factors

  • Passive buying provides no fundamental catalyst — the cluster may already be unwound given the 45-day 13F lag
  • No active manager participation suggests the buying is mechanical, not thesis-driven

Market Snapshot

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

Investment Themes

Documents Analyzed

This report is based on 1 institutional 13F filing from SEC EDGAR.

DocumentAccession Number
INST-CLUSTER Data (Synthetic)inst-cluster-VSTM-2025-Q3
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——
Oct 14, 2026
12d ago
424B5
BEARISH ★ 6/10
$9.23awaiting T+60——
Oct 14, 2026
12d ago
424B5
BEARISH ★ 6/10
$9.23awaiting T+60——
Oct 14, 2026
13d ago
8-K
BULLISH ★ 7/10
$7.71awaiting T+60——
Oct 2, 2026
24d ago
Insider Cluster
BEARISH ★ 5/10
$8.00awaiting T+60——
Jun 23, 2026
18w ago
8-K
BULLISH ★ 6/10
$3.85 $7.55▲ +96.10%▲ +93.27%—
Jun 17, 2026
18w ago
8-K
BULLISH ★ 6/10
$4.17 $7.32▲ +75.54%▲ +72.39%—
Jun 11, 2026
19w ago
Institutional Cluster
BULLISH ★ 5/10
$4.10 $8.08▲ +97.07%▲ +93.81%—
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$3.94 $8.20▲ +108.12%▲ +103.73%—
May 27, 2026
21w ago
3
NEUTRAL ★ 2/10
$4.29 $6.89▲ +60.61%▲ +58.87%—
Showing 10 of 12

US Market Status

Market Closed — Opens Wed (16h 32m)

Subscribe to SecBot

Get Real-Time SEC Filing Intelligence

Comprehensive SEC filing analysis delivered the moment filings hit EDGAR. Sentiment scoring, impact analysis, and actionable insights for every material event.

Create a free account Live analysis, Telegram alerts, watchlists and the MCP server for subscribers
Report published Jun 11, 2026