Vartanian Nishan J. (CIK 1564614) reported 13 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-05-14). Recent activity: Buy MSA (899 shares), Buy KOP (50 shares), Buy KOP (3,280 shares), Buy MSA (60,786 shares), Buy MSA (35,115 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-14 | MSA Safety Inc (MSA) | Director | Buy | 899 | $0 |
| 2026-05-11 | Koppers Holdings Inc. (KOP) | Director | Buy | 50 | $0 |
| 2026-05-11 | Koppers Holdings Inc. (KOP) | Director | Buy | 3,280 | $0 |
| 2026-03-10 | MSA Safety Inc (MSA) | Director | Buy | 60,786 | $0 |
| 2026-03-10 | MSA Safety Inc (MSA) | Director | Buy | 35,115 | $0 |
| 2026-03-10 | MSA Safety Inc (MSA) | Director | Sell | 25,671 | $4.7M |
| 2025-12-04 | MSA Safety Inc (MSA) | Director | Sell | 2,000 | $0 |
| 2025-05-19 | MSA Safety Inc (MSA) | Director | Buy | 909 | $0 |
| 2025-05-14 | MSA Safety Inc (MSA) | Director | Sell | 30,000 | $4.8M |
| 2025-05-09 | Koppers Holdings Inc. (KOP) | Director | Buy | 4,778 | $0 |
| 2025-05-06 | Koppers Holdings Inc. (KOP) | Director | Buy | 17 | $0 |
| 2025-03-20 | MSA Safety Inc (MSA) | Director | Buy | 60,042 | $0 |
| 2025-03-20 | MSA Safety Inc (MSA) | Director | Sell | 25,594 | $4.0M |
Source: SEC Form 4 filings · as of 2026-05-14