Cartesian Therapeutics, Inc. (RNAC) — Institutional Holders, Q2 2026

95 institutional investment managers reported a RNAC position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $90.4M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

RNAC in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

26

Added to

41

Trimmed

13

Sold out

12

Biggest buyers

  1. 683 Capital ManagementAdded · +320,000 sh+$3.3M
  2. AQR CAPITAL MANAGEMENTAdded · +272,436 sh+$2.8M
  3. BlackRockAdded · +220,131 sh+$2.3M
  4. VANGUARD CAPITAL MANAGEMENTAdded · +148,226 sh+$1.5M
  5. TWO SIGMA INVESTMENTSAdded · +128,980 sh+$1.3M

Biggest sellers

  1. FMRTrimmed · -431,314 sh-$4.5M
  2. Erste Asset Management GmbHTrimmed · -198,139 sh-$2.1M
  3. CITADEL ADVISORSSold out · -110,128 sh-$1.1M
  4. JACOBS LEVY EQUITY MANAGEMENTSold out · -101,534 sh-$1.1M
  5. RENAISSANCE TECHNOLOGIESTrimmed · -47,000 sh-$489.7K

RNAC 13F holders ranked 1–95 of 95

Institutional investors reporting a position in Cartesian Therapeutics, Inc. on SEC Form 13F-HR for Q2 2026, ranked by reported value.
InstitutionValueQoQ
Squarepoint Ops#1 · 2,254,619 sh$23.5M+0.7%
BlackRock#2 · 819,239 sh$8.5M+36.7%
683 Capital Management#3 · 650,000 sh$6.8M+97.0%
VANGUARD CAPITAL MANAGEMENT#4 · 555,823 sh$5.8M+36.4%
FMR#5 · 368,429 sh$3.8M-53.9%
GEODE CAPITAL MANAGEMENT#6 · 356,525 sh$3.7M+35.2%
AQR CAPITAL MANAGEMENT#7 · 356,456 sh$3.7M+324.3%
MILLENNIUM MANAGEMENT#8 · 309,887 sh$3.2M+9.0%
TWO SIGMA INVESTMENTS#9 · 296,293 sh$3.1M+77.1%
STATE STREET#10 · 249,212 sh$2.6M+24.4%
MARSHALL WACE, LLP#11 · 232,919 sh$2.4M-7.2%
UBS Group AG#12 · 208,647 sh$2.2M+52.5%
Jupiter Topco#13 · 200,905 sh$2.1M—
Privium Fund Management B.V.#14 · 151,675 sh$1.6M-15.3%
NORTHERN#15 · 105,698 sh$1.1M+14.9%
ADAR1 Capital Management#16 · 98,877 sh$1.0MNew
VANGUARD FIDUCIARY#17 · 91,854 sh$957.1K+30.7%
VANGUARD PORTFOLIO MANAGEMENT#18 · 87,317 sh$909.8K+44.1%
DIADEMA PARTNERS#19 · 87,057 sh$907.1KNew
BANK OF AMERICA#20 · 84,624 sh$881.8KNew
Walleye Capital#21 · 81,828 sh$852.6KNew
GOLDMAN SACHS GROUP#22 · 80,572 sh$839.6K+160.5%
Jump Financial#23 · 66,800 sh$696.1KNew
BNP PARIBAS FINANCIAL MARKETS#24 · 63,977 sh$666.6K+543.0%
Nuveen#25 · 63,454 sh$661.2K+69.4%
CM Management#26 · 60,000 sh$625.2KNew
Point72 Asset Management, L.P.#27 · 43,627 sh$454.6KNew
Trexquant Investment#28 · 41,046 sh$427.7KNew
BRIDGEWAY CAPITAL MANAGEMENT#29 · 32,500 sh$338.6K+30.0%
CHARLES SCHWAB INVESTMENT MANAGEMENT#30 · 32,168 sh$335.2K+29.0%
Bank of New York Mellon#31 · 31,816 sh$331.5K+21.9%
D. E. Shaw#32 · 28,651 sh$298.5KNew
Fedenia Advisers#33 · 28,509 sh$297.1KNew
ACADIAN ASSET MANAGEMENT#34 · 27,746 sh$287.0K+18.1%
IEQ CAPITAL#35 · 25,416 sh$264.8KNew
TWIN FOCUS CAPITAL PARTNERS#36 · 25,000 sh$260.5K+28.2%
Persistent Asset Partners Ltd#37 · 22,191 sh$231.2KNew
Miller Financial Services#38 · 22,143 sh$230.7K0.0%
Erste Asset Management GmbH#39 · 23,566 sh$227.2K-89.4%
Ikarian Capital#40 · 20,807 sh$216.8K0.0%
Invesco Ltd.#41 · 20,687 sh$215.6KNew
RENAISSANCE TECHNOLOGIES#42 · 20,300 sh$211.5K-69.8%
XTX Topco Ltd#43 · 19,395 sh$202.1K-35.5%
Brevan Howard Capital Management#44 · 19,365 sh$201.8KNew
Cerity Partners#45 · 16,848 sh$175.6KNew
Mariner#46 · 14,813 sh$154.3KNew
RHUMBLINE ADVISERS#47 · 13,493 sh$140.6K+9.2%
ALLIANCEBERNSTEIN L.P.#48 · 22,115 sh$136.0K+73.2%
DEUTSCHE BANK AG\#49 · 12,996 sh$135.4K+60.1%
SEI INVESTMENTS#50 · 12,764 sh$133.0K0.0%
WELLS FARGO & COMPANY#51 · 12,644 sh$131.8K+217.7%
JANE STREET GROUP#52 · 11,824 sh$123.2KNew
PRICE T ROWE ASSOCIATES#53 · 10,758 sh$113.0KNew
WEDBUSH SECURITIES#54 · 10,500 sh$109.0K-8.7%
MORGAN STANLEY#55 · 9,687 sh$100.9K-34.6%
SRS Capital Advisors#56 · 6,475 sh$67.5KNew
CITIGROUP#57 · 6,070 sh$63.2K+1126.3%
MIRAE ASSET GLOBAL ETFS Ltd.#58 · 6,045 sh$63.0K+15.1%
JPMORGAN CHASE#59 · 5,852 sh$56.4K+32.6%
Russell Investments Group, Ltd.#60 · 4,883 sh$50.9K+475.1%
BARCLAYS PLC#61 · 4,724 sh$49.2K+42.8%
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#62 · 4,533 sh$47.2K0.0%
NEW YORK STATE COMMON RETIREMENT FUND#63 · 3,902 sh$40.7K0.0%
Vanguard Global Advisers#64 · 3,630 sh$37.8K0.0%
Forum Finance Group S.A.#65 · 3,900 sh$33.0K0.0%
Police & Firemen's Retirement System of New Jersey#66 · 2,939 sh$30.6K0.0%
Tower Research Capital (TRC)#67 · 2,084 sh$21.7K+19.3%
Strategic Wealth Partners, Ltd.#68 · 2,029 sh$21.1K0.0%
NISA INVESTMENT ADVISORS#69 · 1,600 sh$16.7KNew
Integrated Wealth Concepts#70 · 1,562 sh$16.3KNew
Legal & General Group Plc#71 · 1,475 sh$15.3K+61.2%
North Star Investment Management#72 · 1,084 sh$11.3KNew
ALERUS FINANCIAL NA#73 · 1,000 sh$10.4K0.0%
Allworth Financial#74 · 774 sh$8.1K+514.3%
ROYAL BANK OF CANADA#75 · 764 sh$8.0K+991.4%
Ameritas Investment Partners#76 · 708 sh$7.4K0.0%
SBI Securities , Ltd.#77 · 549 sh$5.7K+1020.4%
EverSource Wealth Advisors#78 · 548 sh$5.7K-85.5%
Essential Partners#79 · 432 sh$4.5K-27.6%
OSAIC#80 · 302 sh$3.1K0.0%
Caitong International Asset Management , Ltd#81 · 261 sh$2.7KNew
Sterling Capital Management#82 · 238 sh$2.5K-24.0%
IFP Advisors#83 · 212 sh$2.2K+241.9%
GAMMA Investing#84 · 205 sh$2.1K-74.8%
ROTHSCHILD INVESTMENT#85 · 154 sh$1.6K+285.0%
Farther Finance Advisors#86 · 135 sh$1.4K+136.8%
PNC FINANCIAL SERVICES GROUP#87 · 124 sh$1.3K+244.4%
True Wealth Design#88 · 122 sh$1.3K+335.7%
Activest Wealth Management#89 · 66 sh$688.000.0%
SJS Investment Consulting#90 · 21 sh$219.00+950.0%
Quarry#91 · 15 sh$156.00New
Clearstead Advisors#92 · 9 sh$94.00New
JPL Wealth Management#93 · 4 sh$42.00New
Parallel Advisors#94 · 103 sh$31.000.0%
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM#95 · 147 sh—-74.1%

Funds that sold out of RNAC in Q2 2026 (12)

Held RNAC at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held RNAC in Q1 2026 and reported no position in Q2 2026.
InstitutionValue in Q1 2026
CITADEL ADVISORS110,128 sh$677.3K
JACOBS LEVY EQUITY MANAGEMENT101,534 sh$624.4K
Diametric Capital38,069 sh$234.1K
Man Group plc23,699 sh$145.7K
AMERIPRISE FINANCIAL13,416 sh$82.5K
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO13,000 sh$80.0K
Mirae Asset Global Investments , Ltd.3,715 sh$22.8K
Physician Wealth Advisors144 sh$886.00
Optiver Holding B.V.104 sh$640.00
MAI Capital Management24 sh$148.00
Root Financial Partners14 sh$86.00
Wealth Preservation Advisors1 sh$6.00

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.