M28 Capital Management’s Arrowhead Research ARWR Stock Holding History

M28 Capital Management’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	$3M	Hold	36,851	–	–	6.37%	4
2026 Q1	$2.31M	Sell	36,851 -30,549	-45%	-$1.93M	4.29%	4
2025 Q4	$4.47M	Hold	67,400	–	–	3.25%	4
2025 Q3	$2.32M	Hold	67,400	–	–	3.42%	5
2025 Q2	$1.06M	Hold	67,400	–	–	1.82%	8
2025 Q1	$859K	Hold	67,400	–	–	1.18%	10
2024 Q4	$1.27M	Hold	67,400	–	–	1.24%	11
2024 Q3	$1.31M	Hold	67,400	–	–	1.43%	11
2024 Q2	$1.75M	Hold	67,400	–	–	2.27%	10
2024 Q1	$1.93M	Hold	67,400	–	–	1.42%	11
2023 Q4	$2.06M	Hold	67,400	–	–	1.71%	10
2023 Q3	$1.81M	Hold	67,400	–	–	2.08%	9
2023 Q2	$2.4M	Hold	67,400	–	–	3.18%	10
2023 Q1	$1.71M	Sell	67,400 -76,500	-53%	-$2.41M	1.94%	11
2022 Q4	$5.84M	Buy	+143,900	New	+$4.77M	5.56%	5

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

M28 Capital Management's ARWR Position: Q2 2026 in Review

M28 Capital Management held its Arrowhead Research (ARWR) position steady in Q2 2026 at 36,851 shares worth $3M. The position accounts for 6.37% of the portfolio, ranked #4.

M28 Capital Management first reported a position in ARWR in Q4 2022 and has held it in 15 quarters since. The position peaked at $5.84M in Q4 2022. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

M28 Capital Management held 36,851 shares of Arrowhead Research worth $3M as of Q2 2026.
M28 Capital Management left its Arrowhead Research share count unchanged in Q2 2026.
Arrowhead Research made up 6.37% of M28 Capital Management's portfolio in Q2 2026, its #4 holding.
M28 Capital Management first reported a position in Arrowhead Research in Q4 2022 and has held it in 15 quarters since.
M28 Capital Management's Arrowhead Research position peaked at $5.84M in Q4 2022.
500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on M28 Capital Management's 13F filing for Q2 2026, filed 13 Aug 2026.