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Institutional Cluster ·Filed Oct 21, 2026

CRL

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.
BULLISH
Impact 4/10
Horizonweeks Processed5d 18h ago
Institutional cluster: 5 buyers, 1 sellers (bullish)
Actionable Insight ▲ Bullish

The cluster is dominated by a single large buyer (Assenagon) whose $44.6M doubling suggests conviction, but the 45-day lag means this Q3-end data may already be stale. Monitor for any Q4 13F filings or insider Form 4 activity to confirm the thesis remains active.

DirectionBullish
Confidencemedium
Horizonweeks
Latest settled — T+1d ⚠ clustered
CRL ▲ +1.68% at T+1d
LONG call ✓ call won +1.68% · α vs SPY +2.20% · entry $339.66 → $345.37
Next anchor: T+5d in 21h
Entry = T+0 close
Oct 21, 2026
via day close
T+1d
+1.68%
call +1.68% · α +2.20%
$345.37
settled 5d ago
T+5d
Pending
in 21h
T+20d
Pending
in 22d
T+60d
Pending
in 3mo

Executive Summary

Five institutional buyers accumulated $54.4M in CRL during Q3 2026, led by Assenagon Asset Management's $44.6M doubling and Td Waterhouse Canada's new $8.9M position, while Assetmark exited 76% of its stake ($9.6M sold). The cluster is strongly bullish in net dollar terms, driven by active asset managers, though the 45-day reporting lag means positions may have shifted since quarter-end.

Key Financial Metrics

Direction
accumulating
Buy Value
$69.0M
Sell Value
$13.9M
Net Flow
$54.4M

Institutional Positions

Net institutional flow: $54.4M

▲ Buyers (5)

InstitutionActionChangePosition ValueValue Δ
Assenagon Asset ManagementDOUBLED+221.5%$58.6M$44.6M
Td Waterhouse CanadaDOUBLED+69088.9%$8.9M$8.9M
Farther Finance AdvisorsDOUBLED+136.1%$682.0K$460.0K
Concurrent Investment AdvisorsADD+61.4%$737.0K$386.0K
Mather GroupDOUBLED+115.4%$50.0K$32.0K

▼ Sellers (1)

InstitutionActionChangePrev ValueValue Δ
AssetmarkNEAR_EXIT-76.1%$13.9M-$9.6M

Key Facts

  • 5 institutional buyers added $54.4M net, 1 seller reduced by $9.6M
  • Assenagon Asset Management doubled its position (+$44.6M) to $58.6M, representing 85% of total buying
  • Td Waterhouse Canada initiated a $8.9M position from a near-zero base
  • Assetmark reduced holdings by 76% ($9.6M sold), the only seller in the cluster
  • All buyers are active asset managers; no passive/index funds in the cluster

Financial Impact

Net institutional accumulation of $54.4M across 5 buyers, with total buyer holdings of $69.0M vs. seller reduction of $9.6M. The largest single move was Assenagon's $44.6M increase.

institutional ownershipfloat

Risk Factors

  • 13F data is 45+ days stale; positions may have been unwound since quarter-end
  • Single buyer (Assenagon) accounts for 82% of net buying, making the cluster less diversified
  • Assetmark's near-exit could signal a contrary view from a sophisticated manager

Investment Themes

Documents Analyzed

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

DocumentAccession Number
INST-CLUSTER Data (Synthetic)inst-cluster-CRL-2026-Q3
12 reports for CRL
Performance horizon
100% Hit rate @ T+20 3 of 3 directional calls Went positive at some point 3 of 3 best @ T+20▲ +15.36%Sep 24, 2026
Filters
Rows
Reports for CRL — sortable, filterable
TypeNow
Oct 26, 2026
today
Insider Cluster
NEUTRAL ★ 2/10
$357.41awaiting T+20——
Oct 22, 2026
4d ago
144
NEUTRAL ★ 2/10
$345.37awaiting T+20——
Oct 21, 2026
5d ago
Institutional Cluster
BULLISH ★ 4/10
$339.66awaiting T+20——
Sep 24, 2026
4w ago
8-K
BULLISH ★ 6/10
$294.44 $339.66▲ +15.36%▲ +15.78%—
Aug 27, 2026
8w ago
Insider Cluster
NEUTRAL ★ 3/10
$291.50 $294.59▲ +1.06%▲ +1.55%—
Aug 20, 2026
9w ago
Insider Cluster
NEUTRAL ★ 3/10
$295.19 $279.01▼ −5.48%▼ −6.50%—
Aug 13, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$280.05 $273.11▼ −2.48%▼ −0.49%—
Aug 11, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$284.37 $273.00▼ −4.00%▼ −2.10%—
Aug 10, 2026
11w ago
Insider Cluster
NEUTRAL ★ 3/10
$282.00 $278.35▼ −1.29%▼ −0.24%—
Aug 5, 2026
11w ago
8-K
BULLISH ★ 7/10
$260.72 $291.76▲ +11.91%▲ +12.51%—
Showing 10 of 12

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Report published Oct 21, 2026