As of September 29, 2026, Kala Bio's top three insider holders are Capital Management, L.P. Ra (TenPercentOwner, 140.79K shares), Hongming Chen (Chief Scientific Officer, 4.09K shares), Mark S. Blumenkranz (Director, 779 shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Capital Management, L.P. Ra | TenPercentOwner | 0 | 140,792 | 140,792 | 97.0% | 26 May, 2022 |
| 2 | Hongming Chen | Chief Scientific Officer | 4,090 | 0 | 4,090 | 2.8% | 28 Oct, 2021 |
| 3 | Bros. Advisors Lp Baker | Other | 0 | 170 | 170 | 0.1% | 02 Oct, 2025 |
| 4 | Mark T Iwicki | Chief Executive Officer | 41 | 0 | 41 | 0.0% | 24 Oct, 2025 |
| 5 | Eric Trachtenberg | Officer | 27 | 0 | 27 | 0.0% | 05 Jan, 2024 |
| 6 | Darius Kharabi | Chief Business Officer | 17 | 0 | 17 | 0.0% | 24 Oct, 2025 |
| 7 | Romulus K Brazzell | Chief Medical Officer | 14 | 0 | 14 | 0.0% | 24 Oct, 2025 |
| 8 | Todd Bazemore | Chief Operating Officer | 14 | 0 | 14 | 0.0% | 24 Oct, 2025 |
| 9 | Mary Reumuth | Chief Financial Officer | 12 | 0 | 12 | 0.0% | 24 Oct, 2025 |
| 10 | Andrew I Koven | Director | 7 | 0 | 7 | 0.0% | 17 Jun, 2025 |
| 11 | Howard B Rosen | Director | 7 | 0 | 7 | 0.0% | 17 Jun, 2025 |
| 12 | Gregory D Perry | Director | 5 | 0 | 5 | 0.0% | 17 Jun, 2025 |
| 13 | Mark S. Blumenkranz | Director | 5 | 0 | 5 | 0.0% | 12 Jun, 2024 |
| 14 | C. Daniel Myers | Director | 4 | 0 | 4 | 0.0% | 17 Jun, 2025 |
| 15 | Marjan Farid | Director | 4 | 0 | 4 | 0.0% | 17 Jun, 2025 |
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 |
|---|---|---|---|---|---|---|---|---|
| 18 Dec, 2025 | David E. Lazar | Chief Executive Officer | Disposed J | 368,614 | — | — | 0 | Direct |
| 24 Nov, 2025 | David E. Lazar | Chief Executive Officer | Acquired A | 900,000 | — | — | 360 | Direct |
| 22 Oct, 2025 | Todd Bazemore | Director | Disposed S | 47,768 | $2,075.00 | $99.12Mn | 14 | Direct |
| 22 Oct, 2025 | Romulus K Brazzell | Officer | Disposed S | 46,748 | $2,075.00 | $97.00Mn | 14 | Direct |
| 22 Oct, 2025 | Darius Kharabi | Chief Business Officer | Disposed S | 20,806 | $2,075.00 | $43.17Mn | 17 | Direct |
| 23 Oct, 2025 | Mark T Iwicki | Director | Disposed S | 154,894 | $2,025.00 | $313.66Mn | 41 | Direct |
| 22 Oct, 2025 | Mary Reumuth | Chief Financial Officer | Disposed S | 32,230 | $2,075.00 | $66.88Mn | 12 | Direct |
| 23 Oct, 2025 | Mary Reumuth | Chief Financial Officer | Disposed S | 967 | $2,050.00 | $1.98Mn | 12 | Direct |
| 30 Sep, 2025 | Bros. Advisors Lp Baker | Other | Disposed S | 21,376 | $3,989.75 | $85.28Mn | 39 | Indirect |
| 30 Sep, 2025 | Bros. Advisors Lp Baker | Other | Disposed S | 195,425 | $3,989.75 | $779.70Mn | 355 | Indirect |
| 01 Oct, 2025 | Bros. Advisors Lp Baker | Other | Disposed S | 50,640 | $3,459.50 | $175.19Mn | 19 | Indirect |
| 01 Oct, 2025 | Bros. Advisors Lp Baker | Other | Disposed S | 462,967 | $3,459.50 | $1.60Bn | 170 | Indirect |
| 29 Aug, 2025 | Todd Bazemore | Director, Officer | Acquired A | 180,000 | $0.00 | $0 | 72 | Direct |
| 24 Jun, 2025 | Mark T Iwicki | Director | Disposed S | 13,227 | $10,025.00 | $132.60Mn | 103 | Direct |
| 24 Jun, 2025 | Romulus K Brazzell | Officer | Disposed S | 5,251 | $10,025.00 | $52.64Mn | 33 | Direct |
| 24 Jun, 2025 | Todd Bazemore | Officer | Disposed S | 4,058 | $10,025.00 | $40.68Mn | 33 | Direct |
| 24 Jun, 2025 | Darius Kharabi | Chief Business Officer | Disposed S | 4,511 | $10,025.00 | $45.22Mn | 25 | Direct |
| 24 Jun, 2025 | Mary Reumuth | Chief Financial Officer | Disposed S | 3,631 | $10,025.00 | $36.40Mn | 25 | Direct |
| 15 Jun, 2025 | Mark T Iwicki | Director | Acquired A | 2,450 | $0.00 | $0 | 109 | Direct |
| 15 Jun, 2025 | Andrew I Koven | Director | Acquired A | 3,050 | $0.00 | $0 | 7 | Direct |