Wellington Management Group
ARWR icon

Wellington Management Group’s Arrowhead Research ARWR Stock Holding History

Wellington Management Group’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 		$4.08M Sell
50,081
-4,437
-8% -$328K ﹤0.01% 1489
2026
Q1 		$3.42M Buy
54,518
+7,045
+15% +$446K ﹤0.01% 1458
2025
Q4 		$3.15M Sell
47,473
-1,969
-4% -$96.5K ﹤0.01% 1504
2025
Q3 		$1.71M Buy
49,442
+1,157
+2% +$25.4K ﹤0.01% 1675
2025
Q2 		$763K Sell
48,285
-4,329
-8% -$62.1K ﹤0.01% 1754
2025
Q1 		$670K Sell
52,614
-2,782
-5% -$50.6K ﹤0.01% 1784
2024
Q4 		$1.04M Sell
55,396
-6,508
-11% -$134K ﹤0.01% 1708
2024
Q3 		$1.2M Buy
61,904
+886
+1% +$21.6K ﹤0.01% 1675
2024
Q2 		$1.59M Buy
61,018
+10,055
+20% +$247K ﹤0.01% 1569
2024
Q1 		$1.46M Buy
50,963
+37,027
+266% +$1.18M ﹤0.01% 1594
2023
Q4 		$426K Buy
+13,936
New +$370K ﹤0.01% 1741
2023
Q2 		– Sell
-29,297
Closed -$744K – 1811
2023
Q1 		$744K Sell
29,297
-13,486
-32% -$424K ﹤0.01% 1749
2022
Q4 		$1.74M Sell
42,783
-1,708
-4% -$56.6K ﹤0.01% 1540
2022
Q3 		$1.47M Sell
44,491
-156,094
-78% -$6.3M ﹤0.01% 1583
2022
Q2 		$7.06M Buy
200,585
+35,998
+22% +$1.35M ﹤0.01% 1207
2022
Q1 		$7.57M Sell
164,587
-45,695
-22% -$2.26M ﹤0.01% 1269
2021
Q4 		$13.9M Buy
210,282
+2,936
+1% +$202K ﹤0.01% 1166
2021
Q3 		$12.9M Sell
207,346
-396,072
-66% -$25.6M ﹤0.01% 1199
2021
Q2 		$50M Buy
603,418
+213,554
+55% +$15.9M 0.01% 828
2021
Q1 		$25.9M Sell
389,864
-56,477
-13% -$4.38M ﹤0.01% 1005
2020
Q4 		$34.2M Buy
446,341
+105,688
+31% +$6.76M 0.01% 884
2020
Q3 		$14.7M Buy
+340,653
New +$14.7M ﹤0.01% 1016
2020
Q1 		– Sell
-44,164
Closed -$2.8M – 1907
2019
Q4 		$2.8M Buy
+44,164
New +$2.19M ﹤0.01% 1471
2015
Q1 		– Sell
-112,290
Closed -$829K – 2163
2014
Q4 		$829K Sell
112,290
-372,585
-77% -$2.53M ﹤0.01% 1895
2014
Q3 		$7.16M Buy
484,875
+3,885
+0.8% +$53.1K ﹤0.01% 1340
2014
Q2 		$6.88M Buy
+480,990
New +$6.31M ﹤0.01% 1361

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

Wellington Management Group's ARWR Position: Q2 2026 in Review

Wellington Management Group reduced its Arrowhead Research (ARWR) stake by 8.1% in Q2 2026, selling an estimated $328K and leaving 50,081 shares worth $4.08M. The position accounts for ﹤0.01% of the portfolio, ranked #1489.

Wellington Management Group first reported a position in ARWR in Q2 2014 and has held it in 26 quarters since. The position peaked at $50M in Q2 2021. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.

  • Wellington Management Group held 50,081 shares of Arrowhead Research worth $4.08M as of Q2 2026.
  • Wellington Management Group sold 4,437 Arrowhead Research shares in Q2 2026, an estimated $328K.
  • Arrowhead Research made up ﹤0.01% of Wellington Management Group's portfolio in Q2 2026, its #1489 holding.
  • Wellington Management Group first reported a position in Arrowhead Research in Q2 2014 and has held it in 26 quarters since.
  • Wellington Management Group's Arrowhead Research position peaked at $50M in Q2 2021.
  • 500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.

Based on Wellington Management Group's 13F filing for Q2 2026, filed 14 Aug 2026.