Renaissance Technologies
INSM icon

Renaissance Technologies’s Insmed INSM Stock Holding History

Renaissance Technologies’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
2026
Q2 		– Sell
-20,300
Closed -$3.32M – 3408
2026
Q1 		$3.32M Sell
20,300
-5,600
-22% -$861K 0.01% 1609
2025
Q4 		$4.51M Sell
25,900
-326,987
-93% -$59.7M 0.01% 1369
2025
Q3 		$50.8M Buy
352,887
+44,200
+14% +$5.41M 0.07% 345
2025
Q2 		$31.1M Buy
+308,687
New +$23.6M 0.04% 528
2025
Q1 		– Sell
-25,287
Closed -$1.75M – 3642
2024
Q4 		$1.75M Buy
+25,287
New +$1.82M ﹤0.01% 2143
2024
Q2 		– Sell
-133,987
Closed -$3.63M – 3722
2024
Q1 		$3.63M Buy
+133,987
New +$3.75M 0.01% 1624
2023
Q1 		– Sell
-27,300
Closed -$545K – 4178
2022
Q4 		$545K Buy
+27,300
New +$528K ﹤0.01% 2906
2018
Q1 		– Sell
-36,487
Closed -$1.14M – 3456
2017
Q4 		$1.14M Sell
36,487
-19,400
-35% -$573K ﹤0.01% 2612
2017
Q3 		$1.74M Buy
+55,887
New +$1.06M ﹤0.01% 2347
2017
Q1 		– Sell
-120,500
Closed -$1.59M – 3302
2016
Q4 		$1.59M Sell
120,500
-77,200
-39% -$1.05M ﹤0.01% 2333
2016
Q3 		$2.87M Buy
197,700
+48,400
+32% +$606K 0.01% 1979
2016
Q2 		$1.47M Sell
149,300
-34,487
-19% -$402K ﹤0.01% 2368
2016
Q1 		$2.33M Buy
+183,787
New +$2.42M ﹤0.01% 2130
2014
Q3 		– Sell
-48,587
Closed -$971K – 2863
2014
Q2 		$971K Buy
+48,587
New +$719K ﹤0.01% 2066

Other funds holding INSM

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
Capital International Investors
Capital International Investors Los Angeles, California $484B AUM 34.9% 1-Year Est. Return
DGM
Darwin Global Management St. Helier, Jersey $3.76B AUM 342.13% 1-Year Est. Return
Ameriprise
Ameriprise Minneapolis, Minnesota $495B AUM 43.24% 1-Year Est. Return
OAG
Orbis Allan Gray Hamilton, Bermuda $29.1B AUM 60.8% 1-Year Est. Return

Renaissance Technologies's INSM Position: Q2 2026 in Review

Renaissance Technologies sold out of Insmed (INSM) in Q2 2026, closing a stake of 20,300 shares — an estimated $3.32M sold.

Renaissance Technologies first reported a position in INSM in Q2 2014 and held it in 14 quarters. The position peaked at $50.8M in Q3 2025. 663 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Renaissance Technologies reported no remaining Insmed position as of Q2 2026 after selling out during the quarter.
  • Renaissance Technologies sold 20,300 Insmed shares in Q2 2026, an estimated $3.32M.
  • Renaissance Technologies first reported a position in Insmed in Q2 2014 and held it in 14 quarters.
  • Renaissance Technologies's Insmed position peaked at $50.8M in Q3 2025.
  • 663 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.