Rafferty Asset Management
INSM icon

Rafferty Asset Management’s Insmed INSM Stock Holding History

Rafferty Asset Management’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 		$3.2M Sell
30,045
-86,024
-74% -$10.4M 0.01% 522
2026
Q1 		$19M Buy
116,069
+15,257
+15% +$2.35M 0.08% 143
2025
Q4 		$17.5M Buy
100,812
+45,653
+83% +$8.33M 0.06% 175
2025
Q3 		$7.94M Sell
55,159
-42,951
-44% -$5.26M 0.03% 329
2025
Q2 		$9.87M Sell
98,110
-47,874
-33% -$3.66M 0.03% 271
2025
Q1 		$11.1M Sell
145,984
-34,929
-19% -$2.67M 0.05% 244
2024
Q4 		$12.5M Sell
180,913
-45,887
-20% -$3.3M 0.04% 245
2024
Q3 		$16.6M Buy
226,800
+114,586
+102% +$8.46M 0.06% 178
2024
Q2 		$7.52M Sell
112,214
-217,421
-66% -$8.43M 0.03% 327
2024
Q1 		$8.94M Buy
329,635
+8,548
+3% +$239K 0.03% 303
2023
Q4 		$9.95M Buy
321,087
+47,563
+17% +$1.23M 0.04% 280
2023
Q3 		$6.91M Sell
273,524
-97,602
-26% -$2.23M 0.04% 326
2023
Q2 		$7.83M Sell
371,126
-7,122
-2% -$135K 0.04% 291
2023
Q1 		$6.45M Sell
378,248
-58,554
-13% -$1.14M 0.04% 320
2022
Q4 		$8.73M Buy
436,802
+157,722
+57% +$3.05M 0.07% 224
2022
Q3 		$6.01M Buy
279,080
+95,905
+52% +$2.3M 0.06% 291
2022
Q2 		$3.61M Sell
183,175
-58,325
-24% -$1.22M 0.03% 351
2022
Q1 		$5.67M Buy
241,500
+41,683
+21% +$968K 0.03% 353
2021
Q4 		$5.44M Buy
199,817
+85,043
+74% +$2.43M 0.03% 357
2021
Q3 		$3.16M Buy
114,774
+27,995
+32% +$734K 0.02% 448
2021
Q2 		$2.47M Buy
86,779
+1,599
+2% +$47.5K 0.02% 610
2021
Q1 		$2.9M Buy
85,180
+61,809
+264% +$2.36M 0.02% 516
2020
Q4 		$778K Sell
23,371
-46,314
-66% -$1.69M 0.01% 578
2020
Q3 		$2.24M Buy
69,685
+34,564
+98% +$993K 0.03% 377
2020
Q2 		$967K Buy
35,121
+25,000
+247% +$593K 0.01% 557
2020
Q1 		$162K Sell
10,121
-75,961
-88% -$1.8M 0.01% 539
2019
Q4 		$2.06M Sell
86,082
-142,149
-62% -$2.89M 0.03% 382
2019
Q3 		$4.03M Buy
228,231
+92,953
+69% +$1.79M 0.06% 183
2019
Q2 		$3.46M Buy
135,278
+39,203
+41% +$1.09M 0.06% 234
2019
Q1 		$2.79M Buy
+96,075
New +$2.49M 0.04% 244

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

Rafferty Asset Management's INSM Position: Q2 2026 in Review

Rafferty Asset Management reduced its Insmed (INSM) stake by 74% in Q2 2026, selling an estimated $10.4M and leaving 30,045 shares worth $3.2M. The position accounts for 0.01% of the portfolio, ranked #522.

Rafferty Asset Management first reported a position in INSM in Q1 2019 and has held it in 30 quarters since. The position peaked at $19M in Q1 2026. 666 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Rafferty Asset Management held 30,045 shares of Insmed worth $3.2M as of Q2 2026.
  • Rafferty Asset Management sold 86,024 Insmed shares in Q2 2026, an estimated $10.4M.
  • Insmed made up 0.01% of Rafferty Asset Management's portfolio in Q2 2026, its #522 holding.
  • Rafferty Asset Management first reported a position in Insmed in Q1 2019 and has held it in 30 quarters since.
  • Rafferty Asset Management's Insmed position peaked at $19M in Q1 2026.
  • 666 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

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