Over the trailing 12 months, SRZN insiders bought $10.87 million worth of shares (616.3K shares) and sold $7.23 million worth (335.83K shares) in open-market trades.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Group Iii Gp, Lp Column | TenPercentOwner | 0 | 3,813,501 | 3,813,501 | 46.2% | 22 Oct, 2026 |
| 2 | Tim Kutzkey | Director, TenPercentOwner | 0 | 3,813,501 | 3,813,501 | 46.2% | 22 Oct, 2026 |
| 3 | Crossover Gp Ii, Llc Tcg | TenPercentOwner | 0 | 574,047 | 574,047 | 6.9% | 24 Jul, 2026 |
| 4 | Yang Li | Exec. Vice President, Research | 18,882 | 0 | 18,882 | 0.2% | 16 Jun, 2026 |
| 5 | Charles O Williams | Chief Operating Officer | 18,237 | 0 | 18,237 | 0.2% | 16 Jun, 2026 |
| 6 | Craig C Parker | Chief Executive Officer | 18,175 | 0 | 18,175 | 0.2% | 16 Jun, 2026 |
| 7 | Geertrui Vanhove | Chief Medical Officer | 2,161 | 0 | 2,161 | 0.0% | 19 Dec, 2022 |
| 8 | Wen-Chen Yeh | Chief Scientific Officer | 1,814 | 0 | 1,814 | 0.0% | 19 Jun, 2023 |
| 9 | Andrew Pedrum Maleki | Chief Financial Officer | 607 | 0 | 607 | 0.0% | 16 Jun, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 485,830 | $11.60 | $5.64Mn | 1,386,122 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 485,830 | $11.60 | $5.64Mn | 1,386,122 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 548,653 | $11.60 | $6.36Mn | 1,565,311 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 548,653 | $11.60 | $6.36Mn | 1,565,311 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 517,241 | $11.60 | $6.00Mn | 862,068 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 517,241 | $11.60 | $6.00Mn | 862,068 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Disposed X | 728,745 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Disposed X | 728,745 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Disposed X | 822,980 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Disposed X | 822,980 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Disposed X | 775,861 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Disposed X | 775,861 | — | — | 0 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 242,915 | — | — | 404,858 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 242,915 | — | — | 404,858 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 274,327 | — | — | 457,211 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 274,327 | — | — | 457,211 | Indirect |
| 20 Oct, 2026 | Group Iii Gp, Lp Column | TenPercentOwner | Acquired X | 258,620 | — | — | 431,034 | Indirect |
| 20 Oct, 2026 | Tim Kutzkey | Director, TenPercentOwner | Acquired X | 258,620 | — | — | 431,034 | Indirect |
| 22 Jul, 2026 | Crossover Gp Ii, Llc Tcg | TenPercentOwner | Disposed S | 162,500 | $21.25 | $3.45Mn | 574,054 | Indirect |
| 22 Jul, 2026 | Crossover Gp Ii, Llc Tcg | TenPercentOwner | Disposed S | 162,500 | $21.25 | $3.45Mn | 574,047 | Indirect |