Home › SEC Filings › Insider Cluster Activity
Insider Cluster Activity
All Current Report (8-K)Annual Report (10-K)Quarterly Report (10-Q)Form 4 Insider TradesSC 13D Beneficial Ownership13F Institutional HoldingsPress ReleasesInsider Cluster ActivityInsider Buy Activity
Theme?
All themes Artificial IntelligenceSemiconductorsQuantum ComputingSpace & SatellitesRobotics & AutomationElectric VehiclesClean & Renewable EnergyBattery & Energy StorageNuclear & FusionCybersecurityCloud & SaaSFintech & PaymentsCrypto & BlockchainGenomics & Gene EditingBiotech & Drug DiscoveryE-commerce & PlatformsStreaming & Digital MediaGaming & EsportsDefense TechCannabis
| Ticker | Type | Sentiment | Impact | Summary | Date |
|---|---|---|---|---|---|
| MRK | CLUSTER | neutral | 2/10 | A cluster of insider selling at Merck (MRK) totaling ~$19.4M occurred in the 10 days following the Q2 2026 earnings rele | Aug 14, 2026 |
| AMRX | CLUSTER | bearish | 5/10 | Two senior executives at Amneal Pharmaceuticals (EVP Shah and EVP/CLO Daly) sold a combined $6.22M in open-market stock | Aug 14, 2026 |
| ZLAB | CLUSTER | neutral | 2/10 | Two Zai Lab insiders, including CFO Chen Yajing and Director Lis William, sold a combined $228K in open-market sales ove | Aug 14, 2026 |
| MEDP | CLUSTER | neutral | 3/10 | Medpace CEO August Troendle and a director sold a combined $11.35M in open-market sales over two days, with the CEO alon | Aug 14, 2026 |
| ELAN | CLUSTER | bullish | 4/10 | Three Elanco insiders, including CFO Robert VanHimbergen, purchased a total of $443K in open-market shares over the week | Aug 14, 2026 |
| XFOR | CLUSTER | neutral | 2/10 | Two top insiders at X4 Pharmaceuticals (Executive Chairman and President) sold a combined $320K in open-market transacti | Aug 14, 2026 |
| GEVO | CLUSTER | neutral | 4/10 | Four Gevo insiders (including CEO and CFO) sold a total of $466K in shares over a 7-day window, representing ~0.12% of m | Aug 14, 2026 |
| RCKT | CLUSTER | neutral | 3/10 | Two insiders at Rocket Pharmaceuticals, including the COO, sold a combined $145K in open-market sales on August 11, 2026 | Aug 14, 2026 |
| CRL | CLUSTER | neutral | 3/10 | A cluster of insider selling at Charles River Laboratories (CRL) totaling $10.21M occurred within 9 days of the Q2 2026 | Aug 14, 2026 |
| UTHR | CLUSTER | neutral | 2/10 | CEO Martine Rothblatt and EVP Paul Mahon sold a combined ~$6.35M in open-market shares over a 7-day window following the | Aug 14, 2026 |
| ANIP | CLUSTER | neutral | 3/10 | Two ANIP insiders sold a combined $281K in open-market sales over a 7-day window following a strong Q2 earnings beat. Th | Aug 14, 2026 |
| ATTO | CLUSTER | bullish | 8/10 | Five major 10% owners, including Sanofi, Redmile, venBio, Frazier Life Sciences, and Goldman Sachs, collectively purchas | Aug 13, 2026 |
| ONC | CLUSTER | neutral | 4/10 | CEO John Oyler sold $46.3M of stock over two days (Aug 11-12) following a strong Q2 earnings beat that sent shares up ~1 | Aug 13, 2026 |
| WVE | CLUSTER | neutral | 3/10 | Three Wave Life Sciences directors sold a total of ~$132K in open-market shares over a one-week window, with the largest | Aug 13, 2026 |
| AMGN | CLUSTER | neutral | 2/10 | Three Amgen senior VPs (CCO, Business Development, Human Resources) sold a total of ~$2.45M in open-market shares over a | Aug 13, 2026 |
| MRK | CLUSTER | neutral | 2/10 | Two Merck EVPs sold a combined $2.81M in open-market stock over the past week, following the company's Q2 earnings beat | Aug 13, 2026 |
| KRRO | CLUSTER | neutral | 4/10 | Korro Bio's CEO sold $63K worth of shares while a 10% owner bought $60K, creating a mixed insider cluster. The CEO sale | Aug 13, 2026 |
| REGN | CLUSTER | neutral | 2/10 | Two Regeneron directors sold a combined $960K in open-market sales on August 10, 2026, following the exercise of stock o | Aug 13, 2026 |
| REPL | CLUSTER | mixed | 6/10 | Replimune insiders (CEO, CFO, CMO, CAO) sold $906K in open-market sales on August 10, 2026, the same day as a $150M dilu | Aug 13, 2026 |
| MEDP | CLUSTER | neutral | 3/10 | CEO August Troendle sold $14M in open-market sales over two days (Aug 10-11), and a director sold $465K after exercising | Aug 13, 2026 |
| LTGO | CLUSTER | bullish | 5/10 | Two insiders at Latigo Biotherapeutics (LTGO) made open-market purchases totaling $5.04M at $18.00/share on August 10, 2 | Aug 13, 2026 |
| CRBP | CLUSTER | neutral | 3/10 | A mixed insider cluster at Corbus Pharmaceuticals shows the CEO and CFO selling a combined $292K in open-market sales on | Aug 13, 2026 |
| MRK | CLUSTER | neutral | 2/10 | Multiple Merck executives, including the EVP of Animal Health, EVP of Access/Policy/Comms, EVP/Chief Digital Officer, an | Aug 13, 2026 |
| TAK | CLUSTER | neutral | 3/10 | A cluster of 13 Takeda insiders, including the CEO and President of R&D, sold a total of $8.64M in open-market sales on | Aug 13, 2026 |
| MIRM | CLUSTER | neutral | 3/10 | Mirum Pharmaceuticals CEO Christopher Peetz and CFO Eric Bjerkholt sold a combined $1.75M in open-market stock within tw | Aug 13, 2026 |
| CORT | CLUSTER | neutral | 4/10 | Three Corcept insiders, including Chief Development Officer William Guyer, sold a total of $3.81M in open-market sales o | Aug 13, 2026 |
| UTHR | CLUSTER | neutral | 3/10 | CEO Martine Rothblatt executed a large option exercise and sold a significant block of shares (net ~$6.4M in open-market | Aug 13, 2026 |
| ICLR | CLUSTER | neutral | 2/10 | Seven ICON PLC insiders, including the CEO and CFO, sold a total of ~$237K in open-market sales over a one-week window. | Aug 13, 2026 |
| BLSM | CLUSTER | bullish | 8/10 | A cluster of insider open-market purchases totaling $5.14M occurred at BlossomHill Therapeutics on August 10, 2026. Dire | Aug 13, 2026 |
| HEPA | CLUSTER | bullish | 6/10 | Two Hepion insiders, including the Interim CEO and a director, purchased a total of $125K in HEPA shares at $0.05 each o | Aug 12, 2026 |