LMR Partners’s Arrowhead Research ARWR Stock Holding History

LMR Partners’s Portfolio ARWR Stock Details ARWR Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.64M	Buy	+20,123	New	+$1.49M	0.01%	945
2017 Q3	–	Sell	-287,898	Closed	-$467K	–	329
2017 Q2	$467K	Buy	+287,898	New	+$466K	0.03%	418
2014 Q2	–	Sell	-37,017	Closed	-$608K	–	464
2014 Q1	$608K	Buy	+37,017	New	+$650K	0.09%	112

Other funds holding ARWR

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

ACA

Avoro Capital Advisors New York $11.1B AUM 207.82% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

FAM

Fred Alger Management New York $30B AUM 76.99% 1-Year Est. Return

LMR Partners's ARWR Position: Q2 2026 in Review

LMR Partners opened a new position in Arrowhead Research (ARWR) in Q2 2026: 20,123 shares worth $1.64M. The stake represents 0.01% of the portfolio and ranks #945 among its holdings. This is a return to the name: LMR Partners previously reported a position in ARWR as recently as Q2 2017.

LMR Partners first reported a position in ARWR in Q1 2014 and has held it in 3 quarters since. 501 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

LMR Partners held 20,123 shares of Arrowhead Research worth $1.64M as of Q2 2026.
Arrowhead Research was a new LMR Partners position in Q2 2026.
Arrowhead Research made up 0.01% of LMR Partners's portfolio in Q2 2026, its #945 holding.
LMR Partners first reported a position in Arrowhead Research in Q1 2014 and has held it in 3 quarters since.
501 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on LMR Partners's 13F filing for Q2 2026, filed 14 Aug 2026.