UOC
INSM icon

UBS O'Connor’s Insmed INSM Stock Holding History

UBS O'Connor’s Portfolio INSM Stock Details INSM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-26,301
Closed -$2.65M – 363
2025
Q2 		$2.65M Buy
26,301
+874
+3% +$66.8K 0.07% 122
2025
Q1 		$1.94M Sell
25,427
-1,188
-4% -$90.9K 0.05% 127
2024
Q4 		$1.84M Buy
26,615
+4,796
+22% +$345K 0.05% 163
2024
Q3 		$1.59M Buy
21,819
+7,650
+54% +$565K 0.04% 207
2024
Q2 		$949K Sell
14,169
-39,338
-74% -$1.53M 0.03% 305
2024
Q1 		$1.45M Sell
53,507
-3,220
-6% -$90.1K 0.04% 236
2023
Q4 		$1.76M Sell
56,727
-2,565
-4% -$66.5K 0.06% 189
2023
Q3 		$1.5M Sell
59,292
-53,000
-47% -$1.21M 0.03% 285
2023
Q2 		$2.37M Sell
112,292
-99,048
-47% -$1.88M 0.05% 259
2023
Q1 		$3.6M Buy
211,340
+35,588
+20% +$691K 0.09% 186
2022
Q4 		$3.51M Buy
175,752
+58,908
+50% +$1.14M 0.06% 284
2022
Q3 		$2.52M Sell
116,844
-32,000
-21% -$767K 0.03% 494
2022
Q2 		$2.94M Buy
148,844
+73,844
+98% +$1.55M 0.03% 469
2022
Q1 		$1.76M Buy
+75,000
New +$1.74M 0.02% 615
2019
Q3 		– Sell
-40,000
Closed -$1.02M – 341
2019
Q2 		$1.02M Buy
+40,000
New +$1.11M 0.02% 173
2017
Q4 		– Sell
-82,858
Closed -$2.59M – 331
2017
Q3 		$2.59M Buy
+82,858
New +$1.58M 0.04% 245
2015
Q2 		– Sell
-401,674
Closed -$8.35M – 861
2015
Q1 		$8.35M Buy
401,674
+371,674
+1,239% +$6.55M 0.08% 241
2014
Q4 		$464K Sell
30,000
-47,573
-61% -$675K 0.01% 433
2014
Q3 		$1.01M Buy
+77,573
New +$1.17M 0.02% 345

Other funds holding INSM

JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
DGM
Darwin Global Management St. Helier, Jersey $3.76B AUM 342.13% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Artisan Partners
Artisan Partners Milwaukee, Wisconsin $63.1B AUM 35.51% 1-Year Est. Return

UBS O'Connor's INSM Position: Q3 2025 in Review

UBS O'Connor sold out of Insmed (INSM) in Q3 2025, closing a stake of 26,301 shares — an estimated $2.65M sold.

UBS O'Connor first reported a position in INSM in Q3 2014 and held it in 19 quarters. The position peaked at $8.35M in Q1 2015. 566 funds tracked by Wall St. Rank hold INSM as of Q3 2025.

  • UBS O'Connor reported no remaining Insmed position as of Q3 2025 after selling out during the quarter.
  • UBS O'Connor sold 26,301 Insmed shares in Q3 2025, an estimated $2.65M.
  • UBS O'Connor first reported a position in Insmed in Q3 2014 and held it in 19 quarters.
  • UBS O'Connor's Insmed position peaked at $8.35M in Q1 2015.
  • 566 funds tracked by Wall St. Rank held Insmed as of Q3 2025.

Based on UBS O'Connor's 13F filing for Q3 2025, filed 14 Nov 2025.