Ron Mosberg
Insider
First SEC filing: March 18, 2026 · Latest: March 18, 2026
Insider at
Insider transactions
0 buys (P)
1 sells (S)
Net: $-180
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 24, 2026 | CSTE | S | 64 | $2.82 | $180 | 4,625 Indirect | -1.36% | Disposed | 0.4% (price as of 2026-10-05) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 18, 2026 | CSTE | Ordinary Shares | · | Indirect |
| March 18, 2026 | CSTE | Ordinary Shares | 1,000 | Direct |
| March 18, 2026 | CSTE | Stock Option | 3,750 | Indirect |
| March 18, 2026 | CSTE | Stock Option | 3,750 | Indirect |
| March 18, 2026 | CSTE | Stock Option | 21,250 | Indirect |
| March 18, 2026 | CSTE | Stock Option | 3,750 | Indirect |
| March 18, 2026 | CSTE | Stock Option | 28,700 | Indirect |