BERQUIST JOSEPH A (CIK 1487224) reported 7 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-03-17). Recent activity: Buy KWR (1,396 shares), Buy KWR (466 shares), Buy KWR (462 shares), Buy KWR (2,387 shares), Buy KWR (62 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 1,396 | $0 |
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 466 | $0 |
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 462 | $0 |
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 2,387 | $0 |
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 62 | $0 |
| 2026-03-17 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Sell | 1,623 | $192,244 |
| 2025-05-13 | QUAKER CHEMICAL CORP (KWR) | CEO and President | Buy | 482 | $49,945 |
来源：SEC Form 4 申报文件 · 截至 2026-03-17