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Institutional Cluster

KLRS

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

The institutional buying is entirely passive/index rebalancing, not an active investment signal. Monitor for active manager 13F filings or insider buying for a stronger signal.

DirectionNeutral
Confidencemedium
Horizonweeks
Final — all horizons settled through T+60d
KLRS ▼ -10.55% at T+60d
NEUTRAL call -10.55% · α vs SPY -14.95% · entry $4.36 → $3.90
Entry = T+0 close
Jun 11, 2026
via day close
T+1d
-0.69%
call -0.69% · α -1.23%
$4.33
settled 5mo ago
T+5d
+4.36%
call +4.36% · α +3.92%
$4.55
settled 4mo ago
T+20d
+2.98%
call +2.98% · α +1.09%
$4.49
settled 4mo ago
T+60d
-10.55%
call -10.55% · α -14.95%
$3.90
settled 7w ago

Executive Summary

Three mega-passive institutional investors (Vanguard, State Street, Morgan Stanley) increased their KLRS positions in Q3 2025, collectively adding $1.1M in new holdings. The buying is entirely from passive/index funds, suggesting index rebalancing rather than an active investment thesis.

Key Financial Metrics

Direction
accumulating
Buy Value
$1.4M
Net Flow
$1.1M

Institutional Positions

Net institutional flow: $1.1M

▲ Buyers (3)

InstitutionActionChangePosition ValueValue Δ
VanguardADD+56.4%$1.2M$827.0K
State StreetDOUBLED+111.1%$131.0K$102.0K
Morgan StanleyDOUBLED+1168.7%$144.0K$139.0K

Key Facts

  • 3 institutional buyers added $1.1M in net new holdings during Q3 2025
  • All buyers are mega-passive funds (Vanguard, State Street, Morgan Stanley) — no active managers involved
  • No institutional sellers in the cluster
  • Total current institutional holdings in cluster: $1.4M, representing ~1.4% of $99M market cap

Financial Impact

3 passive institutions added $1.1M in net new KLRS holdings during Q3 2025, bringing total cluster holdings to $1.4M

institutional ownershipfloat

Risk Factors

  • 13F data is 45+ days stale — positions may have been unwound since quarter-end
  • All buying is from passive funds, which carry minimal signal value for stock-specific catalysts

Market Snapshot

Exchange
Nasdaq
Sector
Biological Products, (No Diagnostic Substances)
Analyst Consensus
86% bullish (14 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-KLRS-2025-Q3
16 reports for KLRS
Performance horizon
40% Hit rate @ T+60 2 of 5 directional calls Went positive at some point 2 of 5 best @ T+60▲ +27.75%Apr 3, 2026
Filters
Rows
Reports for KLRS — sortable, filterable
TypeNow
Oct 26, 2026
1d ago
SC 13G
NEUTRAL ★ 3/10
$1.80awaiting T+60——
Aug 11, 2026
11w ago
8-K
NEUTRAL ★ 4/10
$3.97awaiting T+60——
Aug 11, 2026
11w ago
Press Release
NEUTRAL ★ 4/10
$3.97awaiting T+60——
Aug 3, 2026
12w ago
3
NEUTRAL ★ 2/10
$4.32awaiting T+60——
Jul 20, 2026
14w ago
8-K
NEUTRAL ★ 3/10
$4.00 $2.23▼ −44.25%▼ −49.09%—
Jul 17, 2026
14w ago
8-K
BULLISH ★ 7/10
$4.38 $2.26▼ −48.40%▼ −53.09%—
Jul 17, 2026
14w ago
Press Release
BULLISH ★ 6/10
$4.38 $2.26▼ −48.40%▼ −53.09%—
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$4.36 $3.90▼ −10.55%▼ −14.95%—
May 12, 2026
24w ago
8-K
NEUTRAL ★ 4/10
$4.79 $4.19▼ −12.53%▼ −16.91%—
May 12, 2026
24w ago
Press Release
NEUTRAL ★ 4/10
$4.79 $4.19▼ −12.53%▼ −16.91%—
Showing 10 of 16

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published Jun 11, 2026