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Harbour Investments’s Arrowhead Research ARWR Stock Holding History

Harbour Investments’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 		$42.5K Buy
522
+11
+2% +$813 ﹤0.01% 2482
2026
Q1 		$32K Buy
511
+326
+176% +$20.6K ﹤0.01% 2600
2025
Q4 		$12.3K Buy
185
+3
+2% +$147 ﹤0.01% 2646
2025
Q3 		$6.28K Buy
182
+155
+574% +$3.41K ﹤0.01% 2898
2025
Q2 		$427 Hold
27
– – ﹤0.01% 3398
2025
Q1 		$344 Hold
27
– – ﹤0.01% 3379
2024
Q4 		$508 Sell
27
-123
-82% -$2.53K ﹤0.01% 3281
2024
Q3 		$2.91K Sell
150
-200
-57% -$4.88K ﹤0.01% 2815
2024
Q2 		$9.1K Hold
350
– – ﹤0.01% 2300
2024
Q1 		$10K Buy
+350
New +$11.2K ﹤0.01% 2220
2021
Q4 		– Sell
-1,040
Closed -$65K – 2670
2021
Q3 		$65K Sell
1,040
-88
-8% -$5.7K ﹤0.01% 1607
2021
Q2 		$93K Buy
1,128
+1
+0.1% +$74 ﹤0.01% 1440
2021
Q1 		$75K Buy
+1,127
New +$87.4K ﹤0.01% 1454

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 $3.38T AUM 44.17% 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

Harbour Investments's ARWR Position: Q2 2026 in Review

Harbour Investments increased its Arrowhead Research (ARWR) stake by 2.2% in Q2 2026, buying an estimated $813 and bringing the position to 522 shares worth $42.5K. The position accounts for ﹤0.01% of the portfolio, ranked #2482.

Harbour Investments first reported a position in ARWR in Q1 2021 and has held it in 13 quarters since. The position peaked at $93K in Q2 2021. 502 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Harbour Investments held 522 shares of Arrowhead Research worth $42.5K as of Q2 2026.
  • Harbour Investments bought 11 Arrowhead Research shares in Q2 2026, an estimated $813.
  • Arrowhead Research made up ﹤0.01% of Harbour Investments's portfolio in Q2 2026, its #2482 holding.
  • Harbour Investments first reported a position in Arrowhead Research in Q1 2021 and has held it in 13 quarters since.
  • Harbour Investments's Arrowhead Research position peaked at $93K in Q2 2021.
  • 502 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Harbour Investments's 13F filing for Q2 2026, filed 12 Aug 2026.