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Holdings (Monthly) Guide ↗

MFS New Discovery Fund

· Mfs Series Trust I
Monthly Holdings $2.2B AUM 39 positions Period May 2026 Filed Jul 27, 2026 EDGAR ↗ ← All Funds
All 34 New 26 Added 39 Reduced 16 Exited · May 2026 vs Feb 2026
# Name Ticker Since Shares Shares Δ Value Val Δ% % Port Cat
1 MFS Institutional Money Market Portfolio 55291X109 Feb 2026 85,367,303 -17,815,325 $85.4M -17.3% 3.99% EC
2 Advanced Energy Industries Inc 007973100 Feb 2026 166,070 -15,194 $50.2M -17.5% 2.34% EC
3 TTM Technologies Inc 87305R109 Feb 2026 245,417 -19,423 $42.6M +54.4% 1.99% EC
4 Ligand Pharmaceuticals Inc 53220K504 Feb 2026 175,886 -64,744 $40.8M -14.5% 1.91% EC
5 Bloom Energy Corp 093712107 Feb 2026 125,732 -36,326 $35.8M +42.0% 1.67% EC
6 Chefs' Warehouse Inc/The 163086101 Feb 2026 427,455 -12,453 $32.7M +4.2% 1.53% EC
7 FormFactor Inc 346375108 Feb 2026 258,502 -28,736 $32.2M +13.4% 1.50% EC
8 QXO Inc 82846H405 Feb 2026 1,764,764 -185,105 $30.4M -34.8% 1.42% EC
9 Legence Corp 52476L109 Feb 2026 355,258 -178,759 $29.7M -4.0% 1.39% EC
10 Modine Manufacturing Co 607828100 Feb 2026 102,578 -74,846 $28.6M -29.0% 1.34% EC
11 Terreno Realty Corp 88146M101 Feb 2026 392,928 -38,161 $25.8M -9.4% 1.21% EC
12 MACOM Technology Solutions Holdings Inc 55405Y100 Feb 2026 68,537 -87,845 $25.0M -35.6% 1.17% EC
13 Flowserve Corp 34354P105 Feb 2026 320,714 -43,824 $24.2M -25.0% 1.13% EC
14 TopBuild Corp 89055F103 Feb 2026 49,995 -17,960 $20.9M -31.5% 0.97% EC
15 Ionis Pharmaceuticals Inc 462222100 Feb 2026 262,553 -43,887 $20.1M -19.2% 0.94% EC
16 Knife River Corp 498894104 Feb 2026 250,790 -68,030 $19.7M -30.6% 0.92% EC
17 XPO Inc 983793100 Feb 2026 91,336 -55,177 $19.6M -36.5% 0.91% EC
18 Schrodinger Inc/United States 80810D103 Feb 2026 1,213,659 -726,314 $18.4M -21.2% 0.86% EC
19 WisdomTree Inc 97717P104 Feb 2026 916,031 -187,308 $17.5M -7.6% 0.81% EC
20 Brunswick Corp/DE 117043109 Feb 2026 201,916 -73,905 $16.9M -23.0% 0.79% EC
21 nLight Inc 65487K100 Feb 2026 213,255 -354,761 $15.8M -50.5% 0.74% EC
22 Dutch Bros Inc 26701L100 Feb 2026 271,758 -48,411 $15.8M -8.2% 0.74% EC
23 Corsair Gaming Inc 22041X102 Feb 2026 1,261,615 -422,372 $15.3M +65.7% 0.72% EC
24 Knight-Swift Transportation Holdings Inc 499049104 Feb 2026 191,409 -36,286 $14.5M +1.0% 0.68% EC
25 Antero Resources Corp 03674X106 Feb 2026 380,755 -66,086 $13.6M -17.2% 0.64% EC
26 Globus Medical Inc 379577208 Feb 2026 158,271 -33,622 $13.0M -29.3% 0.61% EC
27 Patrick Industries Inc 703343103 Feb 2026 142,294 -52,245 $12.9M -46.5% 0.60% EC
28 Azenta Inc 114340102 Feb 2026 556,939 -75,666 $12.7M -25.3% 0.60% EC
29 Covista Inc 00737L103 Feb 2026 95,560 -26,549 $11.3M -5.9% 0.53% EC
30 Matador Resources Co 576485205 Feb 2026 204,291 -116,253 $10.9M -33.5% 0.51% EC
31 Kymera Therapeutics Inc 501575104 Feb 2026 133,236 -28,104 $10.8M -26.4% 0.51% EC
32 StandardAero Inc 85423L103 Feb 2026 345,690 -298,309 $9.9M -50.1% 0.46% EC
33 Amprius Technologies Inc 03214Q108 Feb 2026 484,851 -1,137,268 $9.8M -43.5% 0.46% EC
34 AtriCure Inc 04963C209 Feb 2026 341,866 -132,908 $9.5M -36.3% 0.44% EC
35 Q2 Holdings Inc 74736L109 Feb 2026 171,035 -128,066 $8.1M -43.7% 0.38% EC
36 Viper Energy Inc 64361Q101 Feb 2026 176,639 -176,290 $8.0M -51.1% 0.38% EC
37 GCM Grosvenor Inc 36831E108 Feb 2026 751,633 -328,819 $8.0M -36.1% 0.37% EC
38 Once Upon a Farm PBC 68237F108 Feb 2026 438,415 -46,178 $6.8M -39.8% 0.32% EC
39 Black Rock Coffee Bar Inc 092244102 Feb 2026 485,111 -325,552 $4.0M -62.7% 0.19% EC