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Institutional Cluster ·Filed Sep 22, 2026

CLBK

Columbia Financial, Inc./MD/
BULLISH
Impact 4/10
Horizonweeks Processed1mo ago
Institutional cluster: 19 buyers, 3 sellers (bullish)
Actionable Insight ▲ Bullish

The broad-based accumulation by 19 institutions, including a quant doubling its stake, signals a potential re-rating catalyst for this small-cap regional bank. Monitor upcoming Q3 earnings for net interest margin trends and loan growth to validate the thesis.

DirectionBullish
Confidencemedium
Horizonweeks
Latest settled — T+20d
CLBK ▼ -6.41% at T+20d
LONG call ✗ call lost -6.41% · α vs SPY -5.85% · entry $11.38 → $10.65
Next anchor: T+60d in 7w
Latest observation: T+23 -13.89% FF3 residual α
Entry = T+0 close
Sep 22, 2026
via day close
T+1d
-1.76%
call -1.76% · α -1.04%
$11.18
settled 5w ago
T+5d
-4.39%
call -4.39% · α -3.21%
$10.88
settled 28d ago
T+20d
-6.41%
call -6.41% · α -5.85%
$10.65
settled 7d ago
T+60d
Pending
in 7w

Executive Summary

19 institutional buyers accumulated $4.4M in CLBK during Q2 2026, led by Susquehanna (doubled to $2.1M) and Fidelity (doubled to $965K), while 3 sellers reduced by $2.4M, including D.E. Shaw trimming 47.6% of its position. The net $2.0M inflow from a broad base of passive and active managers suggests growing institutional confidence in the regional bank's value proposition, though the 45-day reporting lag tempers immediacy.

Key Financial Metrics

Direction
accumulating
Buy Value
$4.4M
Sell Value
$2.4M
Net Flow
$2.0M

Institutional Positions

Net institutional flow: $2.0M

▲ Buyers (19)

InstitutionActionChangePosition ValueValue Δ
Susquehanna International GroupDOUBLED+488.9%$2.1M$1.8M
FidelityDOUBLED+416.5%$965.0K$811.0K
BofAADD+50.2%$1.5M$695.0K
Wells FargoDOUBLED+123.9%$499.0K$315.0K
Russell Investments GroupDOUBLED+444.4%$289.0K$245.0K

▼ Sellers (3)

InstitutionActionChangePrev ValueValue Δ
D.E. ShawTRIM-47.6%$4.0M-$1.5M
Tudor Investment Corp Et AlTRIM-43.8%$1.9M-$620.0K
Osaic HoldingsNEAR_EXIT-76.5%$443.0K-$317.0K

Key Facts

  • 19 buyers vs 3 sellers in Q2 2026 institutional cluster
  • Net institutional inflow of $2.0M ($4.4M bought - $2.4M sold)
  • Susquehanna International Group doubled its stake to $2.1M (largest buyer)
  • Fidelity doubled its position to $965K
  • D.E. Shaw trimmed 47.6% of its holding, reducing by $1.5M
  • Tudor Investment Corp trimmed 43.8%, reducing by $620K

Financial Impact

Net institutional inflow of $2.0M in Q2 2026, with total buying of $4.4M and total selling of $2.4M

institutional ownershipfloat

Risk Factors

  • 13F data is 45 days stale; positions may have been unwound since quarter-end
  • D.E. Shaw's significant trim could indicate a bearish catalyst not yet public
  • Small absolute dollar amounts ($6.4M total holdings) limit market impact

Investment Themes

Traditional Finance

Documents Analyzed

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

DocumentAccession Number
INST-CLUSTER Data (Synthetic)inst-cluster-CLBK-2026-Q2
17 reports for CLBK
Performance horizon
67% Hit rate @ T+20 4 of 6 directional calls Went positive at some point 5 of 6 best @ T+60▲ +27.72%May 21, 2026
Filters
Rows
Reports for CLBK — sortable, filterable
TypeNow
Oct 27, 2026
today
SC 13G
NEUTRAL ★ 3/10
$10.89awaiting T+20——
Sep 22, 2026
5w ago
Institutional Cluster
BULLISH ★ 4/10
$11.38 $10.65▼ −6.41%▼ −5.85%—
Jul 22, 2026
13w ago
Insider Cluster
BULLISH ★ 6/10
$11.01 $11.78▲ +6.99%▲ +3.69%—
Jul 22, 2026
13w ago
Insider Cluster
NEUTRAL ★ 3/10
$11.01 $11.78▲ +6.99%▲ +3.69%—
Jul 20, 2026
14w ago
Press Release
BULLISH ★ 7/10
$11.08 $11.82▲ +6.68%▲ +4.12%—
Jul 16, 2026
14w ago
Press Release
BULLISH ★ 7/10
$23.42 $25.94▲ +10.75%▲ +6.30%—
Jul 2, 2026
16w ago
8-K
MIXED ★ 7/10
$21.17 $23.78▲ +12.34%▲ +12.04%—
Jul 1, 2026
16w ago
Press Release
BULLISH ★ 7/10
$21.17 $23.78▲ +12.34%▲ +12.04%—
Jun 11, 2026
19w ago
Press Release
NEUTRAL ★ 5/10
$20.70 $21.38▲ +3.29%▲ +1.93%—
May 21, 2026
22w ago
DEFM14A
BULLISH ★ 7/10
$9.25 $9.01▼ −2.65%▼ −1.29%—
Showing 10 of 17

US Market Status

Market Closed — Opens Wed (< 1m)

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Report published Sep 22, 2026