Insider Holders & Insider Ownership - Cartesian Therapeutics Inc. (RNAC)

List of insiders holdings for Cartesian Therapeutics Inc.:
  1. Shares directly owned by the insider.
  2. Shares indirectly owned by the insider.
  3. Total shares owned by the insider (sum of shares directly and indirectly owned).
  4. Total market value if available.
  5. Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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# Insider Holder Name Report
Date Time		 Shares Owned
Directly
Indirectly		 Total
Shares Owned		 Filing
1 SPRINGER TIMOTHY A
Director
10% Owner		 2025-04-11 17:29:40 8,643,685
987,208		 9,630,893 Form 4
2 TAS Partners LLC
Leukon Investments LP
SPRINGER TIMOTHY A
Director		 2025-01-15 16:25:12 9,555,394
0		 9,555,394 Form 13D
3 Hoge Elizabeth
Seven One Eight Three Four Irrevocable Trust
10% Owner		 2024-10-15 16:43:23 0
5,118,039		 5,118,039 Form 4
4 Kalayoglu Murat
Director
10% Owner		 2025-01-06 16:20:20 516,777
4,555,260		 5,072,037 Form 4
5 Polaris Venture Management Co. V L.L.C.
Polaris Venture Partners V L.P.
Polaris Venture Partners Entrepreneurs' Fund V L.P.
Polaris Venture Partners Founders' Fund V L.P.
Polaris Venture Partners Special Founders' Fund V L.P.
10% Owner		 2020-02-12 16:42:33 2,789,889
0		 2,789,889 Form 13D
6 ORBIMED ADVISORS LLC
OrbiMed Capital GP III LLC
ISALY SAMUEL D
Director
10% Owner		 2020-02-05 16:36:54 2,779,064
0		 2,779,064 Form 13D
7 GORDON CARL L
Director
10% Owner		 2016-06-29 16:49:20 0
1,825,415		 1,825,415 Form 4
8 Flagship Ventures Fund 2007 L.P.
Flagship Ventures 2007 General Partner LLC
AFEYAN NOUBAR
10% Owner		 2016-06-29 16:44:05 0
1,651,862		 1,651,862 Form 4
9 RUSNANO
10% Owner		 2018-02-06 15:57:02 1,118,368
0		 1,118,368 Form 13G
10 Nanodimension Management Ltd
Nanodimension Limited Partnership
10% Owner		 2018-02-14 15:59:06 1,085,164
0		 1,085,164 Form 13G
11 Osage University Partners II L.P.
Osage University GP II L.P.
Osage Partners LLC
10% Owner		 2016-06-29 16:47:05 0
862,543		 862,543 Form 4
12 Singer Michael
Director		 2025-01-06 16:19:26 81,333
654,868		 736,201 Form 4
13 von Andrian Ulrich
10% Owner		 2016-06-21 18:22:23 513,944
100,642		 614,586 Form 3
14 KANIA EDWIN M JR
Director		 2017-05-16 17:28:58 26,528
560,067		 586,595 Form 4
15 LANGER ROBERT
10% Owner		 2016-06-21 18:30:23 556,695
0		 556,695 Form 3
16 TRABER PETER G
Chief Medical Officer		 2023-09-26 18:00:28 451,826
0		 451,826 Form 4
17 Tan Kevin
Chief Financial Officer		 2022-01-05 16:36:06 417,000
0		 417,000 Form 4
18 Farokhzad Omid
Director		 2019-08-16 16:16:57 188,004
227,677		 415,681 Form 4/A
19 Sallin Aymeric
Director		 2024-01-04 17:07:20 406,000
0		 406,000 Form 4
20 CAUTREELS WERNER
President and CEO		 2017-11-14 21:57:55 321,203
0		 321,203 Form 4
21 Dahms Bradford D.
Chief Financial Officer		 2021-01-06 16:49:34 268,000
0		 268,000 Form 4
22 Johnston Lloyd P.
Chief Operations Officer		 2023-01-06 17:16:11 265,515
0		 265,515 Form 4
23 Kishimoto Takashi Kei
Chief Scientific Officer		 2023-06-01 16:27:18 225,316
0		 225,316 Form 4
24 Brunn Carsten
President and CEO		 2025-01-07 20:04:59 204,096
0		 204,096 Form 4
25 VTB Capital I2BF Netherlands B.V.
Selecta RKFN Ltd.
10% Owner		 2016-06-29 16:47:35 0
178,890		 178,890 Form 4
26 Kogan Elona Esq.
General Counsel		 2020-01-06 20:08:14 140,000
0		 140,000 Form 4
27 Donohue Ann K.
VP Finance		 2021-06-03 16:31:48 135,645
0		 135,645 Form 3
28 Jewell Christopher M
Chief Scientific Officer		 2025-01-13 16:09:06 129,922
0		 129,922 Form 4
29 Schecter Alison D.
Chief Medical Officer		 2020-01-06 20:08:37 100,000
0		 100,000 Form 4
30 Smolinski Stephen
Chief Commercial Officer		 2020-01-06 20:08:56 100,000
0		 100,000 Form 4
31 Davis Blaine
Chief Financial Officer		 2025-01-07 20:04:49 94,811
0		 94,811 Form 4
32 English Emily
Chief Operations Officer		 2025-04-16 16:35:51 89,595
0		 89,595 Form 4
33 ANDO GORAN
Director		 2023-01-04 17:04:42 75,000
0		 75,000 Form 4
34 Kurtoglu Metin
Chief Technology Officer		 2025-01-07 20:05:42 62,258
0		 62,258 Form 4
35 Leaman John Harold
CFO, Treas. & Hd Corp Strategy		 2018-06-19 19:05:26 50,000
0		 50,000 Form 4
36 Miljkovic Milos
Chief Medical Officer		 2025-01-07 20:05:31 35,393
0		 35,393 Form 4
37 BARABE TIMOTHY C
Director		 2025-01-06 16:20:10 32,166
0		 32,166 Form 4
38 Keller Peter
Chief Business Officer		 2017-07-11 16:43:50 32,000
0		 32,000 Form 4
39 COX CARRIE SMITH
Director		 2025-01-06 16:19:16 31,895
0		 31,895 Form 4
40 ZENNER PATRICK J
Director		 2025-01-06 16:20:42 25,774
0		 25,774 Form 4
41 Abraham David
GC, CCO & Corporate Secretary		 2018-06-19 19:06:25 25,000
0		 25,000 Form 4
42 DeSilva Nishan M
Director		 2025-01-06 16:19:06 24,166
0		 24,166 Form 4
43 Malik Kemal
Director		 2025-01-06 16:19:48 16,333
0		 16,333 Form 4
44 HUTT PETER BARTON
Director		 2018-06-19 19:03:52 10,000
0		 10,000 Form 4
45 Nashat Amir
Director		 2019-06-18 16:21:42 10,000
0		 10,000 Form 4
46 Sands Earl
Chief Medical Officer		 2017-11-21 16:08:37 7,500
0		 7,500 Form 4
47 Siewers David
CFO and Treasurer		 2017-09-22 17:30:29 5,000
0		 5,000 Form 4
48 Myers Scott Dunseth
Director		 2023-11-15 17:16:10 0
0		 0 Form 4
49 Shaydullina Leysan
Director		 2016-06-21 18:29:24 0
0		 0 Form 3