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Aquamarine Financial’s Cosan CSAN Stock Holding History

Aquamarine Financial’s Portfolio CSAN Stock Details CSAN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$8.64M Hold
2,096,904
– – 0.63% 10
2025
Q4 		$8.28M Sell
2,096,904
-144,149
-6% -$657K 0.67% 8
2025
Q3 		$10.3M Buy
+2,241,053
New +$10.3M 1.06% 7

Other funds holding CSAN

Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
MAM
Monaco Asset Management Monaco $542M AUM 54.4% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
MCM
Massar Capital Management Stamford, Connecticut $934M AUM 14.18% 1-Year Est. Return
NC
Naman Capital Sao Paulo, Brazil $360M AUM 27.43% 1-Year Est. Return

Aquamarine Financial's CSAN Position: Q1 2026 in Review

Aquamarine Financial held its Cosan (CSAN) position steady in Q1 2026 at 2,096,904 shares worth $8.64M. The position accounts for 0.63% of the portfolio, ranked #10.

Aquamarine Financial first reported a position in CSAN in Q3 2025 and has held it in 3 quarters since. The position peaked at $10.3M in Q3 2025. 74 funds tracked by Wall St. Rank hold CSAN as of Q1 2026.

  • Aquamarine Financial held 2,096,904 shares of Cosan worth $8.64M as of Q1 2026.
  • Aquamarine Financial left its Cosan share count unchanged in Q1 2026.
  • Cosan made up 0.63% of Aquamarine Financial's portfolio in Q1 2026, its #10 holding.
  • Aquamarine Financial first reported a position in Cosan in Q3 2025 and has held it in 3 quarters since.
  • Aquamarine Financial's Cosan position peaked at $10.3M in Q3 2025.
  • 74 funds tracked by Wall St. Rank held Cosan as of Q1 2026.

Based on Aquamarine Financial's 13F filing for Q1 2026, filed 15 May 2026.