MarketPeel
Insider Trading Intelligence
CB

Carsten Brunn

RNAC
PRESIDENT AND CEO · CARTESIAN THERAPEUTICS, INC. · CIK 0001760229
FILING MIX · LIFETIME27%/73%
BUYS
6
SELLS
16
TOTAL VALUE
$2.84M
COMPANIES
1
ACTIVE SINCE
Nov 2023
HOLDINGS NOW
323,530
AVG SELL PX
$1.27
TRADE KIND
SHOWING 22 / 22
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
3 backtested trades · 8 horizons · 5 pending
Forward-return performance of every backtestable P/S trade by Carsten Brunn, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d3+33.33%+4.24%-1.33%+5.57%+6.32%
14d3+0.00%+9.92%+0.06%+9.86%+11.30%
30d3+33.33%+5.67%+0.14%+5.53%+8.27%
60d3+33.33%+2.52%-2.87%+5.39%+7.63%
90d3+100.00%-26.93%-9.61%-17.31%-17.70%
180d3(1 pending)+100.00%-34.47%+5.24%-39.71%-39.71%
1y3(1 pending)+100.00%-59.98%+16.15%-76.13%-76.13%
2y3(3 pending)
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
RNAC · 323,530 shares · as of Jan 6, 2026
01,492,7502,985,5004,478,2505,971,000202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 6 buys / 16 sellsCOVERAGE · 10 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
23,766$6.82$162.1K323,530Jan 6, 2026Jan 8, 2026View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
415,700415,700Jan 2, 2026Jan 6, 2026View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
143,200347,296Jan 2, 2026Jan 6, 2026View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
8,708$16.83$146.6K204,096Jan 6, 2025Jan 7, 2025View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
8,563$16.72$143.2K212,804Jan 3, 2025Jan 7, 2025View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
57,500221,367Jan 2, 2025Jan 6, 2025View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
169,100169,100Jan 2, 2025Jan 6, 2025View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
4,654,1004,916,056Jan 2, 2024Jan 4, 2024View →
RNAC
CARTESIAN THERAPEUTICS, INC.
PURCHASEGRANT
Stock grant
5,971,0005,971,000Jan 2, 2024Jan 4, 2024View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
13,600$2.06$28.0K714,481Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
1,000,0000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
330,0000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
1,056,1000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
282,800$2.06$582.6K261,956Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
55,000$2.06$113.3K728,081Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
600,0000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
75,0000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
400,000$0.31$124.0K0Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
169,725$2.06$349.6K544,756Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
163,0000Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
1,275,000$0.93$1.19M0Nov 13, 2023Nov 15, 2023View →
RNAC
CARTESIAN THERAPEUTICS, INC.
SALE
President and CEO
670,0000Nov 13, 2023Nov 15, 2023View →
Other insiders · RNAC
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About this filer
CIK 0001760229
ROLE
President and CEO
PRIMARY
RNAC
COMPANIES
1
ACTIVE SINCE
Nov 2023
MARKETPEEL · /INSIDER/0001760229DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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