Jane Street’s Insmed INSM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $20.6M | Buy |
193,528
+182,127
| +1,597% | +$22.1M | ﹤0.01% | 2130 |
|
|
2026
Q1 | $1.86M | Sell |
11,401
-2,104
| -16% | -$323K | ﹤0.01% | 5232 |
|
|
2025
Q4 | $2.35M | Sell |
13,505
-778,229
| -98% | -$142M | ﹤0.01% | 4490 |
|
|
2025
Q3 | $114M | Sell |
791,734
-561,188
| -41% | -$68.7M | 0.02% | 529 |
|
|
2025
Q2 | $136M | Buy |
1,352,922
+1,228,335
| +986% | +$93.9M | 0.03% | 372 |
|
|
2025
Q1 | $9.5M | Sell |
124,587
-139,134
| -53% | -$10.6M | ﹤0.01% | 2054 |
|
|
2024
Q4 | $18.2M | Sell |
263,721
-395,954
| -60% | -$28.5M | ﹤0.01% | 1333 |
|
|
2024
Q3 | $48.2M | Sell |
659,675
-180,325
| -21% | -$13.3M | 0.01% | 709 |
|
|
2024
Q2 | $56.3M | Buy |
840,000
+569,027
| +210% | +$22.1M | 0.01% | 642 |
|
|
2024
Q1 | $7.35M | Buy |
270,973
+157,999
| +140% | +$4.42M | ﹤0.01% | 2138 |
|
|
2023
Q4 | $3.5M | Buy |
112,974
+77,459
| +218% | +$2.01M | ﹤0.01% | 3382 |
|
|
2023
Q3 | $897K | Sell |
35,515
-112,023
| -76% | -$2.56M | ﹤0.01% | 5344 |
|
|
2023
Q2 | $3.11M | Buy |
147,538
+87,684
| +146% | +$1.66M | ﹤0.01% | 3429 |
|
|
2023
Q1 | $1.02M | Buy |
59,854
+44,204
| +282% | +$859K | ﹤0.01% | 4956 |
|
|
2022
Q4 | $313K | Sell |
15,650
-24,208
| -61% | -$468K | ﹤0.01% | 6943 |
|
|
2022
Q3 | $858K | Buy |
39,858
+10,032
| +34% | +$241K | ﹤0.01% | 5691 |
|
|
2022
Q2 | $588K | Buy |
29,826
+13,327
| +81% | +$279K | ﹤0.01% | 6450 |
|
|
2022
Q1 | $388K | Sell |
16,499
-58,018
| -78% | -$1.35M | ﹤0.01% | 7933 |
|
|
2021
Q4 | $2.03M | Buy |
74,517
+48,584
| +187% | +$1.39M | ﹤0.01% | 4461 |
|
|
2021
Q3 | $714K | Sell |
25,933
-11,089
| -30% | -$291K | ﹤0.01% | 6605 |
|
|
2021
Q2 | $1.05M | Buy |
37,022
+22,121
| +148% | +$657K | ﹤0.01% | 5720 |
|
|
2021
Q1 | $507K | Sell |
14,901
-42,296
| -74% | -$1.62M | ﹤0.01% | 6781 |
|
|
2020
Q4 | $1.9M | Buy |
57,197
+25,448
| +80% | +$930K | ﹤0.01% | 3569 |
|
|
2020
Q3 | $1.02M | Sell |
31,749
-7,083
| -18% | -$204K | ﹤0.01% | 4068 |
|
|
2020
Q2 | $1.07M | Buy |
38,832
+14,179
| +58% | +$336K | ﹤0.01% | 3966 |
|
|
2020
Q1 | $395K | Buy |
24,653
+65
| +0.3% | +$1.54K | ﹤0.01% | 3911 |
|
|
2019
Q4 | $587K | Sell |
24,588
-1,033
| -4% | -$21K | ﹤0.01% | 3493 |
|
|
2019
Q3 | $452K | Buy |
+25,621
| New | +$495K | ﹤0.01% | 3656 |
|
|
2019
Q1 | – | Sell |
-46,872
| Closed | -$614K | – | 5305 |
|
|
2018
Q4 | $614K | Buy |
+46,872
| New | +$748K | ﹤0.01% | 3194 |
|
|
2018
Q2 | – | Sell |
-13,464
| Closed | -$303K | – | 5270 |
|
|
2018
Q1 | $303K | Buy |
13,464
+1,548
| +13% | +$40.7K | ﹤0.01% | 4006 |
|
|
2017
Q4 | $372K | Sell |
11,916
-1,307
| -10% | -$38.6K | ﹤0.01% | 3523 |
|
|
2017
Q3 | $413K | Buy |
+13,223
| New | +$252K | ﹤0.01% | 3340 |
|
|
2014
Q4 | – | Sell |
-12,012
| Closed | -$157K | – | 2736 |
|
|
2014
Q3 | $157K | Buy |
+12,012
| New | +$181K | ﹤0.01% | 2280 |
|
|
2014
Q2 | – | Sell |
-12,221
| Closed | -$233K | – | 2836 |
|
|
2014
Q1 | $233K | Buy |
+12,221
| New | +$232K | ﹤0.01% | 2228 |
|
|
2013
Q4 | – | Sell |
-14,335
| Closed | -$224K | – | 2617 |
|
|
2013
Q3 | $224K | Buy |
14,335
+1,426
| +11% | +$18.1K | ﹤0.01% | 2325 |
|
|
2013
Q2 | $154K | Buy |
+12,909
| New | +$132K | ﹤0.01% | 2342 |
|
Other funds holding INSM
BBA
DGM
OAG
Jane Street's INSM Position: Q2 2026 in Review
Jane Street increased its Insmed (INSM) stake by 1,597% in Q2 2026, buying an estimated $22.1M and bringing the position to 193,528 shares worth $20.6M. The position accounts for ﹤0.01% of the portfolio, ranked #2130.
Jane Street first reported a position in INSM in Q2 2013 and has held it in 36 quarters since. The position peaked at $136M in Q2 2025. 609 funds tracked by Wall St. Rank hold INSM as of Q2 2026.
- Jane Street held 193,528 shares of Insmed worth $20.6M as of Q2 2026.
- Jane Street bought 182,127 Insmed shares in Q2 2026, an estimated $22.1M.
- Insmed made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #2130 holding.
- Jane Street first reported a position in Insmed in Q2 2013 and has held it in 36 quarters since.
- Jane Street's Insmed position peaked at $136M in Q2 2025.
- 609 funds tracked by Wall St. Rank held Insmed as of Q2 2026.
Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.