As of May 04, 2026, Cartesian Therapeutics's top three insider holders are Murat Kalayoglu (TenPercentOwner, 5.31Mn shares), Elizabeth Hoge (TenPercentOwner, 5.31Mn shares), Murat Kalayoglu (Director, 4.56Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Elizabeth Hoge | - | 0 | 5,313,261 | 06 Apr, 2026 |
| Murat Kalayoglu | - | 0 | 5,313,261 | 06 Apr, 2026 |
| Elizabeth Hoge | - | 0 | 4,555,260 | 15 Oct, 2024 |
| Murat Kalayoglu | - | 0 | 4,555,260 | 15 Oct, 2024 |
| Murat Kalayoglu | - | 0 | 4,555,260 | 15 Oct, 2024 |
| Murat Kalayoglu | - | 257,739 | 3,303,699 | 15 Nov, 2023 |
| Murat Kalayoglu | - | 511,577 | 0 | 06 Jan, 2026 |
| Murat Kalayoglu | - | 511,577 | 0 | 06 Jan, 2026 |
| Elizabeth Hoge | - | 0 | 506,377 | 10 Apr, 2024 |
| Elizabeth Hoge | - | 0 | 506,377 | 10 Apr, 2024 |
| Peter G Traber | Chief Medical Officer | 451,826 | 0 | 26 Sep, 2023 |
| Peter G Traber | Chief Medical Officer | 451,826 | 0 | 26 Sep, 2023 |
| Carrie Smith Cox | - | 390,881 | 0 | 04 Jan, 2024 |
| Carsten Brunn | President And Ceo | 323,530 | 0 | 08 Jan, 2026 |
| Lloyd P. Johnston | Chief Operations Officer | 265,515 | 0 | 06 Jan, 2023 |
| Murat Kalayoglu | - | 257,739 | 0 | 15 Nov, 2023 |
| Takashi Kei Kishimoto | Chief Scientific Officer | 225,316 | 0 | 01 Jun, 2023 |
| Aymeric Sallin | - | 178,000 | 0 | 04 Jan, 2024 |
| Aymeric Sallin | - | 178,000 | 0 | 04 Jan, 2024 |
| Michael Singer | - | 110,123 | 60,841 | 15 Nov, 2023 |
| Michael Singer | - | 110,123 | 60,841 | 15 Nov, 2023 |
| Blaine Davis | Chief Financial Officer | 121,220 | 0 | 08 Jan, 2026 |
| Michael Singer | - | 0 | 118,134 | 10 Apr, 2024 |
| Michael Singer | - | 0 | 118,134 | 10 Apr, 2024 |
| Emily English | Chief Operations Officer | 94,226 | 0 | 06 Jan, 2026 |
| Emily English | Chief Operations Officer | 94,226 | 0 | 06 Jan, 2026 |
| Christopher M Jewell | Chief Scientific Officer | 62,490 | 0 | 13 Jan, 2025 |
| Christopher M Jewell | Chief Scientific Officer | 62,490 | 0 | 13 Jan, 2025 |
| Metin Kurtoglu | Chief Technology Officer | 62,258 | 0 | 07 Jan, 2025 |
| Metin Kurtoglu | Chief Technology Officer | 62,258 | 0 | 07 Jan, 2025 |
| Milos Miljkovic | Chief Medical Officer | 58,820 | 0 | 08 Jan, 2026 |
| Milos Miljkovic | Chief Medical Officer | 58,820 | 0 | 08 Jan, 2026 |
| Timothy C Barabe | - | 56,966 | 0 | 06 Jan, 2026 |
| Michael Singer | - | 49,578 | 0 | 13 Mar, 2026 |
| Michael Singer | - | 49,578 | 0 | 13 Mar, 2026 |
| Carrie Smith Cox | - | 15,629 | 0 | 06 Jan, 2025 |
| Patrick J Zenner | - | 12,974 | 0 | 06 Jan, 2026 |
| Patrick J Zenner | - | 12,974 | 0 | 06 Jan, 2026 |
| Nishan M Desilva | - | 11,366 | 0 | 06 Jan, 2026 |
| Kemal Malik | - | 11,133 | 0 | 06 Jan, 2026 |
| Kemal Malik | - | 11,133 | 0 | 06 Jan, 2026 |
| June Ann Seymour | Chief Accounting Officer | 6,500 | 0 | 06 Jan, 2026 |
| June Ann Seymour | Chief Accounting Officer | 6,500 | 0 | 06 Jan, 2026 |
| Adrian Ion Bot | - | 5,800 | 0 | 18 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 02 Apr, 2026 | Elizabeth Hoge | Common Stock | A | 758,001 | - | 5,313,261 | I | M |
| 02 Apr, 2026 | Murat Kalayoglu | Common Stock | A | 758,001 | - | 5,313,261 | I | M |
| 02 Apr, 2026 | Elizabeth Hoge | Series A Non-Voting Convertible Preferred Stock | D | 22,740 | - | 33,662 | I | M |
| 02 Apr, 2026 | Murat Kalayoglu | Series A Non-Voting Convertible Preferred Stock | D | 22,740 | - | 33,662 | I | M |
| 13 Mar, 2026 | Michael Singer | Common Stock | D | 6,555 | $0.00 | 49,578 | D | G |
| 13 Mar, 2026 | Michael Singer | Common Stock | D | 6,555 | $0.00 | 49,578 | D | G |
| 06 Jan, 2026 | Milos Miljkovic | Common Stock | D | 3,573 | $6.82 | 58,820 | D | S |
| 06 Jan, 2026 | Milos Miljkovic | Common Stock | D | 3,573 | $6.82 | 58,820 | D | S |
| 06 Jan, 2026 | Carsten Brunn | Common Stock | D | 23,766 | $6.82 | 323,530 | D | S |
| 06 Jan, 2026 | Blaine Davis | Common Stock | D | 10,591 | $6.82 | 121,220 | D | S |
| 02 Jan, 2026 | Kemal Malik | Common Stock | A | 2,600 | $0.00 | 11,133 | D | A |
| 02 Jan, 2026 | Murat Kalayoglu | Common Stock | A | 2,600 | $0.00 | 511,577 | D | A |
| 02 Jan, 2026 | Michael Singer | Common Stock | A | 2,600 | $0.00 | 56,133 | D | A |
| 02 Jan, 2026 | Patrick J Zenner | Common Stock | A | 2,600 | $0.00 | 12,974 | D | A |
| 02 Jan, 2026 | Milos Miljkovic | Common Stock | A | 27,000 | $0.00 | 62,393 | D | A |
| 02 Jan, 2026 | June Ann Seymour | Common Stock | A | 6,500 | $0.00 | 6,500 | D | A |
| 02 Jan, 2026 | Emily English | Common Stock | A | 24,000 | $0.00 | 94,226 | D | A |
| 02 Jan, 2026 | Kemal Malik | Common Stock | A | 2,600 | $0.00 | 11,133 | D | A |
| 02 Jan, 2026 | Michael Singer | Common Stock | A | 2,600 | $0.00 | 56,133 | D | A |
| 02 Jan, 2026 | Nishan M Desilva | Common Stock | A | 2,600 | $0.00 | 11,366 | D | A |