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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
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 $5.72T AUM 30.48% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
FAM
Fred Alger Management New York $22.8B AUM 64.63% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPC
Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

Harbour Investments's ARWR Position: Q1 2026 in Review

Harbour Investments increased its Arrowhead Research (ARWR) stake by 176% in Q1 2026, buying an estimated $20.6K and bringing the position to 511 shares worth $32K. The position accounts for ﹤0.01% of the portfolio, ranked #2600.

Harbour Investments first reported a position in ARWR in Q1 2021 and has held it in 12 quarters since. The position peaked at $93K in Q2 2021. 436 funds tracked by Wall St. Rank hold ARWR as of Q1 2026.

  • Harbour Investments held 511 shares of Arrowhead Research worth $32K as of Q1 2026.
  • Harbour Investments bought 326 Arrowhead Research shares in Q1 2026, an estimated $20.6K.
  • Arrowhead Research made up ﹤0.01% of Harbour Investments's portfolio in Q1 2026, its #2600 holding.
  • Harbour Investments first reported a position in Arrowhead Research in Q1 2021 and has held it in 12 quarters since.
  • Harbour Investments's Arrowhead Research position peaked at $93K in Q2 2021.
  • 436 funds tracked by Wall St. Rank held Arrowhead Research as of Q1 2026.

Based on Harbour Investments's 13F filing for Q1 2026, filed 15 May 2026.