Updated Jul 16, 2026
Costa Mark J is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market purchases: $504K. Lifetime open-market sales: $11.35M. Historical track record: 1/5 stars across 3 tracked purchases.
Mark J. Costa is the CEO and Board Chair of Eastman Chemical Company, a global specialty chemicals manufacturer. He has been instrumental in steering the company towards higher-margin specialty products and expanding its presence in international markets.
| Role | Director |
|---|---|
| Notability | 50/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 3333% |
| 90-day win rate | 0% |
| Avg 5-day return | -460.45% |
| Avg 30-day return | -195.02% |
| Avg 90-day return | -1133.62% |
| Best 30-day return | +1517.74% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-03-25 | IFF | INTERNATIONAL FLAVORS FRAGRANCES INC | S — Open-market sale | 15 | $66.05 | $991 |
| 2026-03-25 | IFF | INTERNATIONAL FLAVORS FRAGRANCES INC | P — Open-market purchase | 15 | $80.95 | $1K |
| 2026-03-25 | IFF | INTERNATIONAL FLAVORS FRAGRANCES INC | S — Open-market sale | 15 | $77.49 | $1K |
| 2026-03-25 | IFF | INTERNATIONAL FLAVORS FRAGRANCES INC | P — Open-market purchase | 10 | $84.27 | $843 |
| 2026-02-20 | EMN | EASTMAN CHEMICAL CO | F — Tax withholding / forfeiture | 25.3K | $80.26 | $2.03M |
| 2026-02-13 | EMN | EASTMAN CHEMICAL CO | A — Grant or award | 64.2K | $0.00 | |
| 2026-02-06 | EMN | EASTMAN CHEMICAL CO | F — Tax withholding / forfeiture | 43.6K | $78.49 | $3.43M |
| 2026-02-06 | EMN | EASTMAN CHEMICAL CO | M — Option exercise | 48.6K | $65.16 | $3.17M |
| 2025-08-27 | EMN | EASTMAN CHEMICAL CO | P — Open-market purchase | 7.4K | $67.89 | $502K |
| 2024-12-03 | EMN | EASTMAN CHEMICAL CO | S — Open-market sale | 18.3K | $105.00 | $1.92M |
| 2024-12-03 | EMN | EASTMAN CHEMICAL CO | M — Option exercise | 18.3K | $65.16 | $1.19M |
| 2024-11-27 | EMN | EASTMAN CHEMICAL CO | S — Open-market sale | 87.5K | $105.01 | $9.19M |
| 2024-11-27 | EMN | EASTMAN CHEMICAL CO | M — Option exercise | 87.5K | $65.16 | $5.70M |
| 2024-11-27 | EMN | EASTMAN CHEMICAL CO | S — Open-market sale | 2.2K | $105.63 | $235K |
| 2024-11-27 | EMN | EASTMAN CHEMICAL CO | M — Option exercise | 2.2K | $65.16 | $145K |
Mark J. Costa is the CEO and Board Chair of Eastman Chemical Company, a global specialty chemicals manufacturer. He has been instrumental in steering the company towards higher-margin specialty products and expanding its presence in international markets.…
Recorded transactions: 3 open-market purchases ($504K) and 5 open-market sales ($11.35M) across all tracked filings.
Across 3 tracked purchases, Costa Mark J averaged -195.0% avg 30-day return with a 3333% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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