The cluster is dominated by large institutional exits/trims, suggesting a loss of conviction after the prior quarter's mixed earnings and deal announcement. Monitor the upcoming 10-Q for Q3 2026 revenue and EPS to see if fundamentals justify the selling.
Executive Summary
A mixed institutional cluster in REGN for Q3 2026 shows small buyers accumulating $9.0M while three large sellers exited or trimmed $187.8M, led by Assenagon Asset Management (near-exit of $124.8M) and Parnassus Investments (full exit of $59.5M). The selling dominates the cluster by scale, likely reflecting profit-taking or thesis abandonment after the prior quarter's mixed earnings (GAAP EPS miss of -11.8% vs consensus) and the Sanofi antibody deal expansion.
Key Financial Metrics
Institutional Positions
Net institutional flow: -$178.8M
▲ Buyers (5)
| Institution | Action | Change | Position Value | Value Δ |
|---|---|---|---|---|
| Hb Wealth Management | DOUBLED | +115.8% | $4.4M | $2.7M |
| Abn Amro Investment Solutions | ADD | +77.7% | $8.2M | $4.4M |
| Concurrent Investment Advisors | ADD | +42.6% | $3.1M | $1.3M |
| Farther Finance Advisors | ADD | +42.7% | $1.2M | $493.0K |
| Td Waterhouse Canada | ADD | +31.6% | $18.0K | $6.0K |
▼ Sellers (3)
| Institution | Action | Change | Prev Value | Value Δ |
|---|---|---|---|---|
| Assenagon Asset Management | NEAR_EXIT | -84.9% | $152.7M | -$124.8M |
| Parnassus Investments | EXIT | -100% | $59.5M | -$59.5M |
| Vontobel Holding | TRIM | -31.9% | $20.7M | -$3.5M |
Key Facts
- 5 small buyers added $9.0M in aggregate (net buying), led by Hb Wealth Management doubling its position by +115.8% to $4.4M)
- 3 large sellers reduced holdings by -$187.8M in aggregate, with Assenagon Asset Management near-exiting -84.9% of its stake ($124.8M sold)
- Parnassus Investments fully exited a $59.5M position (EXIT, -100.0%)
- Vontobel Holding trimmed -31.9% ($3.5M) of its stake
- Prior 8-K (Oct 2026) disclosed a $1.0B upfront payment from Sanofi for antibody collaboration expansion, but Q3 2026 GAAP EPS miss of -11.8% vs consensus
Financial Impact
3 institutions sold $187.8M in aggregate while 5 small buyers added $9.0M, net institutional outflow of -$178.8M
Risk Factors
- 13F data is 45+ days stale; the selling may have already been completed or reversed
- Small buyers are all asset managers with minimal aggregate buying ($9.0M) vs large sellers ($187.8M), creating an asymmetric signal
Investment Themes
Documents Analyzed
This report is based on 1 institutional 13F filing from SEC EDGAR.
| Document | Accession Number |
|---|---|
| INST-CLUSTER Data (Synthetic) | inst-cluster-REGN-2026-Q3 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 26, 2026 1d ago | Press Release | $807.67 | awaiting T+5 | — | — |
Oct 25, 2026 2d ago | Press Release | $807.67 | awaiting T+5 | — | — |
Oct 23, 2026 4d ago | Institutional Cluster | $805.02 | awaiting T+5 | — | — |
Oct 15, 2026 12d ago | ANALYST-UPGRADE | $790.74 $805.02 | ▲ +1.81% | ▲ +2.24% | — |
Oct 14, 2026 13d ago | 144 | $796.34 $819.09 | ▲ +2.86% | ▲ +3.87% | — |
Oct 6, 2026 21d ago | 8-K | $738.72 $753.12 | ▲ +1.95% | ▲ +2.09% | — |
Oct 1, 2026 26d ago | Press Release | $734.81 $739.57 | ▲ +0.65% | ▼ −0.65% | — |
Oct 1, 2026 26d ago | Press Release | $734.81 $739.57 | ▲ +0.65% | ▼ −0.65% | — |
Oct 1, 2026 26d ago | ANALYST-UPGRADE | — | awaiting T+5 | — | — |
Oct 1, 2026 26d ago | Press Release | $734.81 $739.57 | ▲ +0.65% | ▼ −0.65% | — |
US Market Status
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