William Blair Investment Management
FOLD

William Blair Investment Management’s Amicus Therapeutics FOLD Stock Holding History

William Blair Investment Management’s Portfolio FOLD Stock Details FOLD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-10,627,717
Closed -$151M – 433
2025
Q4 		$151M Sell
10,627,717
-5,121,523
-33% -$50.3M 0.42% 58
2025
Q3 		$124M Buy
15,749,240
+1,107,083
+8% +$7.88M 0.32% 86
2025
Q2 		$83.9M Sell
14,642,157
-136,494
-0.9% -$881K 0.22% 111
2025
Q1 		$121M Sell
14,778,651
-819,047
-5% -$7.58M 0.34% 84
2024
Q4 		$147M Buy
15,597,698
+14,736
+0.1% +$153K 0.36% 90
2024
Q3 		$166M Buy
15,582,962
+2,579,599
+20% +$28.1M 0.41% 83
2024
Q2 		$129M Buy
13,003,363
+1,477,084
+13% +$15.2M 0.34% 91
2024
Q1 		$136M Sell
11,526,279
-120,747
-1% -$1.54M 0.35% 88
2023
Q4 		$165M Buy
11,647,026
+1,270,263
+12% +$14.4M 0.48% 68
2023
Q3 		$126M Buy
10,376,763
+8,070,098
+350% +$104M 0.42% 78
2023
Q2 		$29M Buy
2,306,665
+25,573
+1% +$303K 0.09% 237
2023
Q1 		$25.3M Buy
2,281,092
+179,906
+9% +$2.22M 0.09% 242
2022
Q4 		$25.7M Buy
2,101,186
+15,822
+0.8% +$178K 0.1% 229
2022
Q3 		$21.8M Sell
2,085,364
-462,242
-18% -$5.15M 0.09% 246
2022
Q2 		$27.4M Buy
2,547,606
+16,194
+0.6% +$133K 0.1% 222
2022
Q1 		$24M Buy
2,531,412
+54,691
+2% +$513K 0.07% 268
2021
Q4 		$28.6M Buy
2,476,721
+501,749
+25% +$5.59M 0.08% 258
2021
Q3 		$18.9M Buy
1,974,972
+23,295
+1% +$238K 0.05% 320
2021
Q2 		$18.8M Buy
1,951,677
+790,953
+68% +$7.72M 0.06% 228
2021
Q1 		$11.5M Buy
1,160,724
+89,073
+8% +$1.38M 0.04% 270
2020
Q4 		$24.7M Buy
1,071,651
+105,888
+11% +$2.17M 0.08% 185
2020
Q3 		$13.6M Buy
+965,763
New +$14.1M 0.05% 233

Other funds holding FOLD

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PCM
Pentwater Capital Management Naples, Florida $19.3B AUM 58.13% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
GCL
Glazer Capital LLC New York $4.71B AUM 81.93% 1-Year Est. Return
Fidelity International
Fidelity International Hamilton, Bermuda $129B AUM 30.83% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $89.9B AUM 20.22% 1-Year Est. Return

William Blair Investment Management's FOLD Position: Q1 2026 in Review

William Blair Investment Management sold out of Amicus Therapeutics (FOLD) in Q1 2026, closing a stake of 10,627,717 shares — an estimated $151M sold.

William Blair Investment Management first reported a position in FOLD in Q3 2020 and held it in 22 quarters. The position peaked at $166M in Q3 2024. 298 funds tracked by Wall St. Rank hold FOLD as of Q1 2026.

  • William Blair Investment Management reported no remaining Amicus Therapeutics position as of Q1 2026 after selling out during the quarter.
  • William Blair Investment Management sold 10,627,717 Amicus Therapeutics shares in Q1 2026, an estimated $151M.
  • William Blair Investment Management first reported a position in Amicus Therapeutics in Q3 2020 and held it in 22 quarters.
  • William Blair Investment Management's Amicus Therapeutics position peaked at $166M in Q3 2024.
  • 298 funds tracked by Wall St. Rank held Amicus Therapeutics as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.