Artisan Partners
INSM icon

Artisan Partners’s Insmed INSM Stock Holding History

Artisan Partners’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 		$580M Sell
5,441,718
-1,085,583
-17% -$131M 0.92% 29
2026
Q1 		$1.07B Buy
6,527,301
+1,683,552
+35% +$259M 1.71% 16
2025
Q4 		$843M Sell
4,843,749
-93,934
-2% -$17.1M 1.26% 18
2025
Q3 		$711M Buy
4,937,683
+1,623,342
+49% +$199M 1.01% 27
2025
Q2 		$334M Buy
3,314,341
+97,073
+3% +$7.42M 0.49% 57
2025
Q1 		$245M Buy
3,217,268
+90,929
+3% +$6.96M 0.4% 63
2024
Q4 		$216M Buy
3,126,339
+242,242
+8% +$17.4M 0.32% 81
2024
Q3 		$211M Buy
2,884,097
+394,666
+16% +$29.1M 0.31% 80
2024
Q2 		$167M Buy
+2,489,431
New +$96.6M 0.25% 95
2021
Q2 		– Sell
-1,773,502
Closed -$60.4M – 348
2021
Q1 		$60.4M Sell
1,773,502
-275,030
-13% -$10.5M 0.08% 238
2020
Q4 		$68.2M Buy
2,048,532
+984,987
+93% +$36M 0.08% 219
2020
Q3 		$34.2M Buy
1,063,545
+250,594
+31% +$7.2M 0.05% 253
2020
Q2 		$22.4M Buy
812,951
+294,133
+57% +$6.97M 0.04% 258
2020
Q1 		$8.32M Buy
+518,818
New +$12.3M 0.02% 274

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

Artisan Partners's INSM Position: Q2 2026 in Review

Artisan Partners reduced its Insmed (INSM) stake by 17% in Q2 2026, selling an estimated $131M and leaving 5,441,718 shares worth $580M. The position accounts for 0.92% of the portfolio, ranked #29.

Artisan Partners first reported a position in INSM in Q1 2020 and has held it in 14 quarters since. The position peaked at $1.07B in Q1 2026. 665 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • Artisan Partners held 5,441,718 shares of Insmed worth $580M as of Q2 2026.
  • Artisan Partners sold 1,085,583 Insmed shares in Q2 2026, an estimated $131M.
  • Insmed made up 0.92% of Artisan Partners's portfolio in Q2 2026, its #29 holding.
  • Artisan Partners first reported a position in Insmed in Q1 2020 and has held it in 14 quarters since.
  • Artisan Partners's Insmed position peaked at $1.07B in Q1 2026.
  • 665 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on Artisan Partners's 13F filing for Q2 2026, filed 13 Aug 2026.