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Institutional Cluster ·Filed Sep 22, 2026

AVBC

Avidia Bancorp, Inc.
MIXED
Impact 3/10
Horizonweeks Processed1mo ago
Institutional cluster: 11 buyers, 6 sellers (mixed)
Actionable Insight ◆ Mixed

The cluster is dominated by passive/index fund buying, which likely reflects index rebalancing or sector allocation rather than a fundamental thesis. The large active exits (Wellington, Millennium, Jane Street) suggest informed selling. Monitor for insider buying or a catalyst (e.g., earnings, M&A) to confirm whether the passive accumulation is justified.

DirectionMixed
Confidencemedium
Horizonweeks
Latest settled — T+20d
AVBC ▲ +1.38% at T+20d
NEUTRAL call +1.38% · α vs SPY +1.94% · entry $21.78 → $22.08
Next anchor: T+60d in 7w
Latest observation: T+23 +0.84% FF3 residual α
Entry = T+0 close
Sep 22, 2026
via day close
T+1d
-0.69%
call -0.69% · α +0.03%
$21.63
settled 5w ago
T+5d
-1.15%
call -1.15% · α +0.04%
$21.53
settled 28d ago
T+20d
+1.38%
call +1.38% · α +1.94%
$22.08
settled 7d ago
T+60d
Pending
in 7w

Executive Summary

A mixed institutional cluster in AVBC for 2026-Q2 shows 11 buyers accumulating $30.7M in new positions, led by mega-passive funds (BlackRock, Geode, Northern Trust) and quant firm RenTech, while 6 sellers reduced holdings by $22.9M, including a full exit by Wellington Management ($15.3M) and a near-exit by Millennium ($5.9M). The net $7.8M inflow is dominated by passive/index funds, weakening the signal, while the large active exits suggest divergent views on the stock's near-term prospects.

Key Financial Metrics

Direction
mixed
Buy Value
$45.4M
Sell Value
$22.9M
Net Flow
$7.8M

Institutional Positions

Net institutional flow: $7.8M

▲ Buyers (11)

InstitutionActionChangePosition ValueValue Δ
BlackRockDOUBLED+316.5%$24.2M$18.7M
GeodeDOUBLED+101.3%$9.3M$5.0M
Northern TrustDOUBLED+257.9%$3.0M$2.2M
RenTechDOUBLED+169.8%$2.5M$1.6M
Marshall WaceADD+44.8%$3.1M$1.1M

▼ Sellers (6)

InstitutionActionChangePrev ValueValue Δ
Wellington Management GroupEXIT-100%$15.3M-$15.3M
MillenniumNEAR_EXIT-93%$6.4M-$5.9M
Schonfeld Strategic AdvisorsNEAR_EXIT-75.9%$935.0K-$695.0K
Jane Street GroupTRIM-69.2%$840.0K-$564.0K

Key Facts

  • 11 institutional buyers added $30.7M in new positions; 6 sellers reduced by $22.9M
  • BlackRock doubled its stake to 1.15M shares ($24.2M), the largest buyer by value
  • Wellington Management fully exited a $15.3M position, the largest seller
  • Millennium Management reduced by 93% to a near-exit, selling $5.9M
  • Passive/index funds (BlackRock, Geode, Northern Trust, Schwab, BofA, Wells Fargo) account for the majority of buying
  • Active managers (Marshall Wace, Trexquant) added modestly; quant firm RenTech doubled its stake

Financial Impact

Net institutional inflow of $7.8M (11 buyers at $30.7M vs 6 sellers at $22.9M) in 2026-Q2

institutional ownershipfloat

Risk Factors

  • 13F data is 45 days stale; positions may have been unwound since quarter-end
  • Passive buying may not reflect conviction; active selling by Wellington and Millennium is a bearish signal
  • Small-cap bank stocks face headwinds from interest rate sensitivity and regional banking sector concerns

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-AVBC-2026-Q2
23 reports for AVBC
Performance horizon
100% Hit rate @ T+5 11 of 11 directional calls Went positive at some point 11 of 11 best @ T+60▲ +18.00%Jun 3, 2026
Filters
Rows
Reports for AVBC — sortable, filterable
TypeNow
Oct 23, 2026
3d ago
8-K
BULLISH ★ 7/10
$22.66awaiting T+5——
Oct 9, 2026
17d ago
3/A
NEUTRAL ★ 2/10
$21.89 $21.96▲ +0.32%▲ +2.29%—
Sep 22, 2026
4w ago
Institutional Cluster
MIXED ★ 3/10
$21.78 $21.53▼ −1.15%▲ +0.04%—
Sep 3, 2026
7w ago
Insider Buy
BULLISH ★ 5/10
$22.09 $22.18▲ +0.41%▲ +1.62%—
Aug 19, 2026
9w ago
Insider Cluster
BULLISH ★ 5/10
$22.00 $22.02▲ +0.09%▲ +0.48%—
Aug 12, 2026
10w ago
Insider Cluster
NEUTRAL ★ 2/10
$22.14 $22.00▼ −0.63%▼ −0.19%—
Jun 26, 2026
17w ago
8-K
NEUTRAL ★ 2/10
$21.15 $20.77▼ −1.80%▼ −3.18%—
Jun 3, 2026
20w ago
Insider Cluster
BULLISH ★ 4/10
$18.78 $20.07▲ +6.87%▲ +10.69%—
May 19, 2026
22w ago
Insider Cluster
BULLISH ★ 4/10
$19.01 $19.08▲ +0.37%▼ −1.88%—
May 15, 2026
23w ago
Insider Cluster
NEUTRAL ★ 3/10
$18.90 $19.06▲ +0.85%▼ −0.77%—
Showing 10 of 23

US Market Status

Market Closed — Opens Wed (9h 34m)

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Report published Sep 22, 2026