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Institutional Cluster ·Filed Oct 15, 2026

RGEN

REPLIGEN CORP
MIXED
Impact 3/10
Horizonweeks Processed12d 13h ago
Institutional cluster: 3 buyers, 2 sellers (mixed)
Actionable Insight ◆ Mixed

The divergence between Artemis's aggressive accumulation and Wasatch's substantial trim suggests disagreement on RGEN's near-term outlook. Monitor upcoming earnings for revenue growth trajectory and any guidance changes that could resolve this institutional split.

DirectionMixed
Confidencemedium
Horizonweeks
Latest settled — T+5d
RGEN ▼ -2.96% at T+5d
NEUTRAL call -2.96% · α vs SPY -1.95% · entry $184.17 → $178.71
Next anchor: T+20d in 15d
Latest observation: T+6 -8.49% FF3 residual α
Entry = T+0 close
Oct 15, 2026
via day close
T+1d
-4.75%
call -4.75% · α -3.64%
$175.42
settled 12d ago
T+5d
-2.96%
call -2.96% · α -1.95%
$178.71
settled 6d ago
T+20d
Pending
in 15d
T+60d
Pending
in 3mo

Executive Summary

Institutional activity in RGEN during Q3 2026 shows a mixed picture: Artemis Investment Management more than tripled its position (+$55.4M), while Wasatch Advisors cut 43% (-$42.6M) and Assenagon nearly exited (-$9.4M). The net $3.8M inflow is modest relative to the $174M+ in aggregate holdings, and the 45-day reporting lag means positions may have already shifted.

Key Financial Metrics

Direction
mixed
Buy Value
$73.4M
Sell Value
$226.7M
Net Flow
$3.8M

Institutional Positions

Net institutional flow: $3.8M

▲ Buyers (3)

InstitutionActionChangePosition ValueValue Δ
Artemis Investment ManagementDOUBLED+207.6%$72.0M$55.4M
Wealth Enhancement Advisory ServicesADD+61.4%$1.3M$370.0K
Farther Finance AdvisorsADD+35.5%$72.0K$34.0K

▼ Sellers (2)

InstitutionActionChangePrev ValueValue Δ
Wasatch AdvisorsTRIM-43%$217.0M-$42.6M
Assenagon Asset ManagementNEAR_EXIT-97.9%$9.7M-$9.4M

Key Facts

  • Artemis Investment Management doubled its RGEN stake (+207.6%), adding $55.4M to reach $72.0M
  • Wasatch Advisors trimmed 43% of its RGEN position, selling $42.6M to leave $174.4M
  • Assenagon Asset Management nearly exited (-97.9%), selling $9.4M to leave $286K
  • Two smaller buyers (Farther Finance, Wealth Enhancement) added modest amounts totaling ~$404K
  • Net aggregate change across all 5 institutions was +$3.8M inflow

Financial Impact

3 institutions accumulated $55.8M in new RGEN positions while 2 reduced holdings by $52.0M, resulting in a net $3.8M inflow

institutional ownershipfloat

Risk Factors

  • 13F data is 45+ days stale; positions may have been unwound or added to since quarter-end
  • Wasatch's $42.6M trim is 3x larger than Artemis's add, signaling potential institutional conviction loss
  • No insider buying confluence to corroborate the bullish side of the cluster

Investment Themes

Documents Analyzed

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

DocumentAccession Number
INST-CLUSTER Data (Synthetic)inst-cluster-RGEN-2026-Q3
14 reports for RGEN
Performance horizon
100% Hit rate @ T+60 5 of 5 directional calls Went positive at some point 8 of 8 best @ T+60▲ +31.47%Jul 22, 2026
Filters
Rows
Reports for RGEN — sortable, filterable
TypeNow
Oct 27, 2026
today
8-K
BULLISH ★ 6/10
$176.93awaiting T+60——
Oct 27, 2026
today
Press Release
BULLISH ★ 6/10
$181.38awaiting T+60——
Oct 15, 2026
12d ago
Institutional Cluster
MIXED ★ 3/10
$184.17awaiting T+60——
Oct 7, 2026
20d ago
SC 13G/A
BULLISH ★ 5/10
$167.22awaiting T+60——
Oct 6, 2026
21d ago
8-K
BULLISH ★ 6/10
$174.86awaiting T+60——
Oct 6, 2026
21d ago
Press Release
BULLISH ★ 6/10
$174.86awaiting T+60——
Aug 24, 2026
9w ago
S-4
NEUTRAL ★ 6/10
$181.69awaiting T+60——
Jul 28, 2026
13w ago
8-K
BULLISH ★ 7/10
$145.34 $180.01▲ +23.85%▲ +19.50%—
Jul 22, 2026
13w ago
425 / 8-K
BULLISH ★ 7/10
$140.09 $184.17▲ +31.47%▲ +28.20%—
Jul 22, 2026
13w ago
Press Release
BULLISH ★ 7/10
$140.09 $184.17▲ +31.47%▲ +28.20%—
Showing 10 of 14

US Market Status

Market Closed — Opens in 6h 37m

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Report published Oct 15, 2026