Zachary Jennifer (CIK 1737231) reported 14 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-08-13). Recent activity: Buy MRK (41,494 shares), Buy MRK (13,433 shares), Sell MRK (80,315 shares), Buy RGNX (9,807 shares), Buy MRK (2,951 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 41,494 | $4.9M |
| 2026-08-13 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 13,433 | $1.1M |
| 2026-08-13 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Sell | 80,315 | $10.7M |
| 2026-06-02 | REGENXBIO Inc. (RGNX) | Director | Buy | 9,807 | $0 |
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 2,951 | $324,699 |
| 2026-05-01 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Sell | 1,454 | $159,984 |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 25,946 | $3.1M |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Sell | 25,946 | $3.1M |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 56,792 | $6.8M |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Sell | 56,792 | $6.8M |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 38,835 | $4.6M |
| 2026-02-09 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Sell | 38,835 | $4.6M |
| 2026-01-28 | Merck & Co., Inc. (MRK) | EVP, General Counsel | Buy | 11,583 | $1.2M |
| 2025-06-03 | REGENXBIO Inc. (RGNX) | Director | Buy | 7,768 | $0 |
Source: SEC Form 4 filings · as of 2026-08-13