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Woodline Partners’s Arrowhead Research ARWR Stock Holding History

Woodline 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 		$16.3M Hold
200,184
– – 0.05% 413
2026
Q1 		$12.6M Sell
200,184
-200,000
-50% -$12.7M 0.05% 452
2025
Q4 		$26.6M Sell
400,184
-599,974
-60% -$29.4M 0.1% 255
2025
Q3 		$34.5M Buy
1,000,158
+254,002
+34% +$5.58M 0.16% 172
2025
Q2 		$11.8M Buy
746,156
+183,981
+33% +$2.64M 0.06% 389
2025
Q1 		$7.16M Sell
562,175
-277,999
-33% -$5.05M 0.05% 421
2024
Q4 		$15.8M Sell
840,174
-25,620
-3% -$528K 0.11% 252
2024
Q3 		$16.8M Buy
865,794
+44,276
+5% +$1.08M 0.14% 212
2024
Q2 		$21.4M Buy
821,518
+265,890
+48% +$6.53M 0.2% 156
2024
Q1 		$15.9M Sell
555,628
-371,559
-40% -$11.9M 0.15% 198
2023
Q4 		$28.4M Buy
927,187
+458,690
+98% +$12.2M 0.31% 98
2023
Q3 		$12.6M Buy
468,497
+372,530
+388% +$11.4M 0.15% 193
2023
Q2 		$3.42M Sell
95,967
-496,271
-84% -$17.1M 0.04% 352
2023
Q1 		$15M Buy
+592,238
New +$18.6M 0.2% 140
2020
Q4 		– Sell
-87,365
Closed -$3.76M – 226
2020
Q3 		$3.76M Buy
+87,365
New +$3.77M 0.12% 144

Other funds holding ARWR

BlackRock
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
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
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

Woodline Partners's ARWR Position: Q2 2026 in Review

Woodline Partners held its Arrowhead Research (ARWR) position steady in Q2 2026 at 200,184 shares worth $16.3M. The position accounts for 0.05% of the portfolio, ranked #413.

Woodline Partners first reported a position in ARWR in Q3 2020 and has held it in 15 quarters since. The position peaked at $34.5M in Q3 2025. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Woodline Partners held 200,184 shares of Arrowhead Research worth $16.3M as of Q2 2026.
  • Woodline Partners left its Arrowhead Research share count unchanged in Q2 2026.
  • Arrowhead Research made up 0.05% of Woodline Partners's portfolio in Q2 2026, its #413 holding.
  • Woodline Partners first reported a position in Arrowhead Research in Q3 2020 and has held it in 15 quarters since.
  • Woodline Partners's Arrowhead Research position peaked at $34.5M in Q3 2025.
  • 500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

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