RNAC · Insider trading · 13F holders · Congress trades
Cartesian Therapeutics Inc (RNAC)
Who is buying and selling RNAC: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 3
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
RNAC at a glance
- No open-market insider purchases or sales of RNAC were filed in the last 90 days.
- 3 13F filers hold RNAC among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are 683 Capital Management, LLC (0.7%), Diadema Partners LP (0.3%) and Privium Fund Management B.V. (0.3%).
- No member of Congress has disclosed a trade in RNAC.
RNAC insider trading
No open-market insider purchases or sales of RNAC were filed in the last 90 days.
Who owns RNAC? Hedge funds and superinvestors
3 13F filers hold RNAC among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are 683 Capital Management, LLC (0.7%), Diadema Partners LP (0.3%) and Privium Fund Management B.V. (0.3%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| 683 Capital Management, LLCHedge fund | 0.7% | $6.8M | 650,000 | — | Q2 2026 |
| Privium Fund Management B.V.Asset manager | 0.3% | $1.6M | 151,675 | -15.3% shares | Q2 2026 |
| Diadema Partners LPHedge fund | 0.3% | $907K | 87,057 | — | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 3). Screen RNAC in the grand portfolio →
RNAC stock trades by members of Congress
No member of Congress has disclosed a trade in RNAC.
RNAC questions and answers
Are insiders buying RNAC stock?
No open-market insider purchases or sales of RNAC were filed in the last 90 days.
Which hedge funds own RNAC?
3 13F filers hold RNAC among their 50 largest positions, worth $9.3M combined. The biggest bets by portfolio weight are 683 Capital Management, LLC (0.7%), Diadema Partners LP (0.3%) and Privium Fund Management B.V. (0.3%).
Has Congress traded RNAC?
No member of Congress has disclosed a trade in RNAC.
Who is the largest holder of RNAC?
Among 13F filers, 683 Capital Management, LLC reports the largest RNAC position, $6.8M (650,000 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is 683 Capital Management, LLC's: 0.7% of its portfolio.
Cite or share this
Free to use with a link back. The data updates every filing day.