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Aquilo Capital Management’s Arrowhead Research ARWR Stock Holding History

Aquilo 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
2025
Q2 		– Sell
-550,130
Closed -$7.01M – 4
2025
Q1 		$7.01M Sell
550,130
-157,459
-22% -$2.86M 12.57% 3
2024
Q4 		$13.3M Sell
707,589
-88,224
-11% -$1.82M 20.06% 1
2024
Q3 		$15.4M Sell
795,813
-112,661
-12% -$2.75M 11.69% 2
2024
Q2 		$23.6M Hold
908,474
– – 22.76% 1
2024
Q1 		$26M Hold
908,474
– – 19.47% 1
2023
Q4 		$27.8M Hold
908,474
– – 17.33% 1
2023
Q3 		$24.4M Buy
908,474
+50,000
+6% +$1.53M 22.12% 1
2023
Q2 		$30.6M Sell
858,474
-160,000
-16% -$5.52M 16.96% 1
2023
Q1 		$25.9M Sell
1,018,474
-85,041
-8% -$2.67M 10.72% 3
2022
Q4 		$44.8M Sell
1,103,515
-115,000
-9% -$3.81M 16.81% 1
2022
Q3 		$40.3M Buy
1,218,515
+20,000
+2% +$807K 14.52% 1
2022
Q2 		$42.2M Buy
1,198,515
+151,075
+14% +$5.68M 14.4% 2
2022
Q1 		$48.2M Buy
1,047,440
+347,014
+50% +$17.2M 7.08% 4
2021
Q4 		$46.4M Buy
700,426
+172,500
+33% +$11.9M 5.27% 4
2021
Q3 		$33M Buy
527,926
+95,000
+22% +$6.15M 5.99% 7
2021
Q2 		$35.9M Buy
432,926
+25,000
+6% +$1.86M 9.32% 4
2021
Q1 		$27.1M Buy
407,926
+42,000
+11% +$3.26M 4.89% 10
2020
Q4 		$28.1M Sell
365,926
-157,489
-30% -$10.1M 5.84% 7
2020
Q3 		$22.5M Sell
523,415
-39,876
-7% -$1.72M 2.39% 7
2020
Q2 		$24.3M Buy
563,291
+126,777
+29% +$4.47M 4.91% 7
2020
Q1 		$12.6M Buy
+436,514
New +$17.6M 4.89% 10
2019
Q3 		– Sell
-557,455
Closed -$14.8M – 12
2019
Q2 		$14.8M Sell
557,455
-425,000
-43% -$9.33M 5.13% 5
2019
Q1 		$18M Sell
982,455
-82,473
-8% -$1.36M 7.98% 5
2018
Q4 		$13.2M Buy
+1,064,928
New +$14.6M 6.4% 3

Other funds holding ARWR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SPC
Slate Path Capital New York $6.73B AUM 95.97% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
UBS AM
UBS AM Chicago, Illinois $481B AUM 26.39% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $3.61B AUM 203.3% 1-Year Est. Return
Marshall Wace
Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Aquilo Capital Management's ARWR Position: Q2 2025 in Review

Aquilo Capital Management sold out of Arrowhead Research (ARWR) in Q2 2025, closing a stake of 550,130 shares — an estimated $7.01M sold.

Aquilo Capital Management first reported a position in ARWR in Q4 2018 and held it in 24 quarters. The position peaked at $48.2M in Q1 2022. 282 funds tracked by Wall St. Rank hold ARWR as of Q2 2025.

  • Aquilo Capital Management reported no remaining Arrowhead Research position as of Q2 2025 after selling out during the quarter.
  • Aquilo Capital Management sold 550,130 Arrowhead Research shares in Q2 2025, an estimated $7.01M.
  • Aquilo Capital Management first reported a position in Arrowhead Research in Q4 2018 and held it in 24 quarters.
  • Aquilo Capital Management's Arrowhead Research position peaked at $48.2M in Q1 2022.
  • 282 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2025.

Based on Aquilo Capital Management's 13F filing for Q2 2025.