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GW&K Investment Management’s Insmed INSM Stock Holding History

GW&K Investment 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 		$67.1M Buy
629,760
+6,712
+1% +$813K 0.52% 56
2026
Q1 		$102M Buy
623,048
+140,378
+29% +$21.6M 0.9% 16
2025
Q4 		$84M Sell
482,670
-119,133
-20% -$21.7M 0.73% 26
2025
Q3 		$86.7M Sell
601,803
-672,513
-53% -$82.4M 0.77% 24
2025
Q2 		$128M Sell
1,274,316
-103,410
-8% -$7.91M 1.15% 7
2025
Q1 		$105M Buy
1,377,726
+242,333
+21% +$18.5M 0.97% 9
2024
Q4 		$78.4M Sell
1,135,393
-18,122
-2% -$1.31M 0.67% 35
2024
Q3 		$84.2M Buy
1,153,515
+391,783
+51% +$28.9M 0.72% 25
2024
Q2 		$51M Sell
761,732
-508,166
-40% -$19.7M 0.47% 79
2024
Q1 		$34.5M Sell
1,269,898
-21,874
-2% -$612K 0.3% 136
2023
Q4 		$40M Sell
1,291,772
-60,497
-4% -$1.57M 0.37% 109
2023
Q3 		$34.1M Sell
1,352,269
-995
-0.1% -$22.8K 0.34% 120
2023
Q2 		$28.6M Buy
1,353,264
+48,250
+4% +$915K 0.27% 148
2023
Q1 		$22.3M Buy
1,305,014
+309,237
+31% +$6.01M 0.22% 168
2022
Q4 		$19.9M Buy
995,777
+755,076
+314% +$14.6M 0.2% 177
2022
Q3 		$5.18M Sell
240,701
-2,977
-1% -$71.4K 0.06% 226
2022
Q2 		$4.8M Sell
243,678
-2,910
-1% -$61K 0.05% 238
2022
Q1 		$5.79M Sell
246,588
-3,025
-1% -$70.3K 0.05% 240
2021
Q4 		$6.8M Buy
249,613
+21,953
+10% +$628K 0.06% 239
2021
Q3 		$6.27M Buy
227,660
+73,870
+48% +$1.94M 0.06% 245
2021
Q2 		$4.38M Sell
153,790
-3,360
-2% -$99.7K 0.04% 291
2021
Q1 		$5.35M Sell
157,150
-1,099
-0.7% -$42K 0.05% 263
2020
Q4 		$5.27M Buy
+158,249
New +$5.78M 0.06% 261

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

GW&K Investment Management's INSM Position: Q2 2026 in Review

GW&K Investment Management increased its Insmed (INSM) stake by 1.1% in Q2 2026, buying an estimated $813K and bringing the position to 629,760 shares worth $67.1M. The position accounts for 0.52% of the portfolio, ranked #56.

GW&K Investment Management first reported a position in INSM in Q4 2020 and has held it in 23 quarters since. The position peaked at $128M in Q2 2025. 667 funds tracked by Wall St. Rank hold INSM as of Q2 2026.

  • GW&K Investment Management held 629,760 shares of Insmed worth $67.1M as of Q2 2026.
  • GW&K Investment Management bought 6,712 Insmed shares in Q2 2026, an estimated $813K.
  • Insmed made up 0.52% of GW&K Investment Management's portfolio in Q2 2026, its #56 holding.
  • GW&K Investment Management first reported a position in Insmed in Q4 2020 and has held it in 23 quarters since.
  • GW&K Investment Management's Insmed position peaked at $128M in Q2 2025.
  • 667 funds tracked by Wall St. Rank held Insmed as of Q2 2026.

Based on GW&K Investment Management's 13F filing for Q2 2026, filed 12 Aug 2026.