Jane Street’s Arrowhead Research ARWR Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $16M | Buy |
196,205
+180,430
| +1,144% | +$13.3M | ﹤0.01% | 2362 |
|
|
2026
Q1 | $989K | Buy |
15,775
+10,104
| +178% | +$640K | ﹤0.01% | 6513 |
|
|
2025
Q4 | $376K | Buy |
+5,671
| New | +$278K | ﹤0.01% | 8331 |
|
|
2025
Q3 | – | Sell |
-22,243
| Closed | -$489K | – | 10729 |
|
|
2025
Q2 | $351K | Sell |
22,243
-17,639
| -44% | -$253K | ﹤0.01% | 7568 |
|
|
2025
Q1 | $508K | Sell |
39,882
-616,374
| -94% | -$11.2M | ﹤0.01% | 6831 |
|
|
2024
Q4 | $12.3M | Buy |
656,256
+192,376
| +41% | +$3.96M | ﹤0.01% | 1697 |
|
|
2024
Q3 | $8.99M | Sell |
463,880
-232,839
| -33% | -$5.68M | ﹤0.01% | 2031 |
|
|
2024
Q2 | $18.1M | Buy |
696,719
+568,647
| +444% | +$14M | ﹤0.01% | 1412 |
|
|
2024
Q1 | $3.66M | Buy |
128,072
+45,041
| +54% | +$1.44M | ﹤0.01% | 3090 |
|
|
2023
Q4 | $2.54M | Sell |
83,031
-40,972
| -33% | -$1.09M | ﹤0.01% | 3914 |
|
|
2023
Q3 | $3.33M | Buy |
124,003
+26,473
| +27% | +$811K | ﹤0.01% | 3209 |
|
|
2023
Q2 | $3.48M | Buy |
97,530
+22,033
| +29% | +$760K | ﹤0.01% | 3266 |
|
|
2023
Q1 | $1.92M | Buy |
75,497
+50,897
| +207% | +$1.6M | ﹤0.01% | 3904 |
|
|
2022
Q4 | $1.12M | Sell |
24,600
-11,608
| -32% | -$385K | ﹤0.01% | 4801 |
|
|
2022
Q3 | $1.3M | Sell |
36,208
-42,570
| -54% | -$1.72M | ﹤0.01% | 4949 |
|
|
2022
Q2 | $2.88M | Buy |
78,778
+5,727
| +8% | +$215K | ﹤0.01% | 3518 |
|
|
2022
Q1 | $3.36M | Buy |
73,051
+51,488
| +239% | +$2.55M | ﹤0.01% | 3729 |
|
|
2021
Q4 | $1.43M | Sell |
21,563
-36,449
| -63% | -$2.5M | ﹤0.01% | 5188 |
|
|
2021
Q3 | $3.62M | Sell |
58,012
-23,692
| -29% | -$1.53M | ﹤0.01% | 3305 |
|
|
2021
Q2 | $6.77M | Buy |
81,704
+66,217
| +428% | +$4.93M | ﹤0.01% | 2210 |
|
|
2021
Q1 | $1.03M | Sell |
15,487
-27,334
| -64% | -$2.12M | ﹤0.01% | 5401 |
|
|
2020
Q4 | $3.29M | Sell |
42,821
-58,377
| -58% | -$3.73M | ﹤0.01% | 2699 |
|
|
2020
Q3 | $4.36M | Buy |
101,198
+81,091
| +403% | +$3.5M | ﹤0.01% | 2007 |
|
|
2020
Q2 | $868K | Buy |
20,107
+12,826
| +176% | +$453K | ﹤0.01% | 4269 |
|
|
2020
Q1 | $209K | Sell |
7,281
-21,980
| -75% | -$886K | ﹤0.01% | 4605 |
|
|
2019
Q4 | $1.86M | Buy |
29,261
+6,981
| +31% | +$346K | ﹤0.01% | 2023 |
|
|
2019
Q3 | $628K | Buy |
+22,280
| New | +$659K | ﹤0.01% | 3241 |
|
|
2019
Q2 | – | Sell |
-46,052
| Closed | -$845K | – | 5103 |
|
|
2019
Q1 | $845K | Buy |
46,052
+29,667
| +181% | +$489K | ﹤0.01% | 3025 |
|
|
2018
Q4 | $204K | Buy |
+16,385
| New | +$224K | ﹤0.01% | 4462 |
|
|
2018
Q3 | – | Sell |
-33,279
| Closed | -$453K | – | 5051 |
|
|
2018
Q2 | $453K | Buy |
+33,279
| New | +$311K | ﹤0.01% | 3684 |
|
|
2018
Q1 | – | Sell |
-35,299
| Closed | -$130K | – | 4762 |
|
|
2017
Q4 | $130K | Buy |
+35,299
| New | +$131K | ﹤0.01% | 4307 |
|
|
2015
Q4 | – | Sell |
-59,260
| Closed | -$341K | – | 3960 |
|
|
2015
Q3 | $341K | Buy |
59,260
+15,891
| +37% | +$99.9K | ﹤0.01% | 2668 |
|
|
2015
Q2 | $310K | Buy |
43,369
+13,385
| +45% | +$92K | ﹤0.01% | 2793 |
|
|
2015
Q1 | $203K | Buy |
29,984
+7,507
| +33% | +$53.3K | ﹤0.01% | 2881 |
|
|
2014
Q4 | $166K | Buy |
+22,477
| New | +$153K | ﹤0.01% | 2273 |
|
|
2014
Q3 | – | Sell |
-24,709
| Closed | -$354K | – | 2513 |
|
|
2014
Q2 | $354K | Sell |
24,709
-192,061
| -89% | -$2.52M | ﹤0.01% | 1701 |
|
|
2014
Q1 | $3.56M | Buy |
216,770
+185,613
| +596% | +$3.26M | 0.04% | 338 |
|
|
2013
Q4 | $338K | Buy |
31,157
+16,411
| +111% | +$131K | ﹤0.01% | 1548 |
|
|
2013
Q3 | $84K | Sell |
14,746
-3,213
| -18% | -$12.3K | ﹤0.01% | 2562 |
|
|
2013
Q2 | $36K | Buy |
+17,959
| New | +$36.7K | ﹤0.01% | 2566 |
|
Other funds holding ARWR
ACA
FAM
Jane Street's ARWR Position: Q2 2026 in Review
Jane Street increased its Arrowhead Research (ARWR) stake by 1,144% in Q2 2026, buying an estimated $13.3M and bringing the position to 196,205 shares worth $16M. The position accounts for ﹤0.01% of the portfolio, ranked #2362.
Jane Street first reported a position in ARWR in Q2 2013 and has held it in 40 quarters since. The position peaked at $18.1M in Q2 2024. 500 funds tracked by Wall St. Rank hold ARWR as of Q2 2026.
- Jane Street held 196,205 shares of Arrowhead Research worth $16M as of Q2 2026.
- Jane Street bought 180,430 Arrowhead Research shares in Q2 2026, an estimated $13.3M.
- Arrowhead Research made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2362 holding.
- Jane Street first reported a position in Arrowhead Research in Q2 2013 and has held it in 40 quarters since.
- Jane Street's Arrowhead Research position peaked at $18.1M in Q2 2024.
- 500 funds tracked by Wall St. Rank held Arrowhead Research as of Q2 2026.
Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.