Diadema Partners’s Avidity Biosciences RNAM Stock Holding History

Diadema Partners’s Portfolio RNAM Stock Details RNAM Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	–	Sell	-328,000	Closed	-$23.7M	–	196
2025 Q4	$23.7M	Buy	328,000 +127,900	+64%	+$8.26M	4.08%	5
2025 Q3	$8.72M	Buy	+200,100	New	+$8.09M	2.23%	9

Other funds holding RNAM

Corsicana & Co Corsicana, Texas $206M AUM 26.42% 1-Year Est. Return

Diadema Partners's RNAM Position: Q4 2025 in Review

Diadema Partners sold out of Avidity Biosciences (RNAM) in Q4 2025, closing a stake of 30,000 shares — an estimated $1.94M sold.

Diadema Partners first reported a position in RNAM in Q3 2025 and held it in 1 quarter. The position peaked at $1.31M in Q3 2025. 343 funds tracked by Wall St. Rank hold RNAM as of Q4 2025.

Diadema Partners reported no remaining Avidity Biosciences position as of Q4 2025 after selling out during the quarter.
Diadema Partners sold 30,000 Avidity Biosciences shares in Q4 2025, an estimated $1.94M.
Diadema Partners first reported a position in Avidity Biosciences in Q3 2025 and held it in 1 quarter.
Diadema Partners's Avidity Biosciences position peaked at $1.31M in Q3 2025.
343 funds tracked by Wall St. Rank held Avidity Biosciences as of Q4 2025.

Based on Diadema Partners's 13F filing for Q4 2025, filed 17 Feb 2026.