MACKAY SHIELDS LLC Diversified Active

Location: New York, NY

CIK: 0000061227 · Show all filings

Period: Q2 2026 (← Previous)

Filing Date: Jul 28, 2026

Total Value: $2.985B (27.2% shares, 72.8% debt)

Holdings (108)

New Positions (13)

Exited Positions (16)

Decreased Positions (27)

ADVANCED ENERGY INDS 0.4%
Value $13.23M (-86.1%) Shares 4,843,000 (-87.8%) Est. Cost $1.05 Unrealized
MIRUM PHARMACEUTICALS INC 0.2%
Value $7.199M (-89.6%) Shares 1,947,000 (-91.6%) Est. Cost $1.35 Unrealized
LUMENTUM HLDGS INC 2.8%
Value $84.11M (-41.4%) Shares 12,884,000 (-51.9%) Est. Cost $0.97 Unrealized
WESTERN DIGITAL CORP 5.1%
Value $151M (+36.1%) Shares 8,952,000 (-42.2%) Est. Cost $1.32 Unrealized
NINE NINE ENERGY SERVICE INC 1.3%
Value $39.18M (+55.8%) Shares 3,011,565 (-1.8%) Est. Cost $8.20 Unrealized
IONIS PHARMACEUTICALS INC 0.1%
Value $3.752M (-76.1%) Shares 2,414,000 (-76.8%) Est. Cost $1.04 Unrealized
ON SEMICONDUCTOR CORP 1.3%
Value $39.96M (-21.0%) Shares 21,949,000 (-44.0%) Est. Cost $1.19 Unrealized
NUTANIX INC 0.5%
Value $16.34M (-39.1%) Shares 16,565,000 (-44.1%) Est. Cost $0.97 Unrealized
IAU ISHARES GOLD TR 0.8%
Value $24.77M (-28.0%) Shares 328,020 (-15.9%) Est. Cost $33.71 Unrealized
DEXCOM INC 0.7%
Value $20.92M (-24.3%) Shares 22,415,000 (-25.2%) Est. Cost $0.94 Unrealized
DATADOG INC 1.3%
Value $39.07M (+19.1%) Shares 27,438,000 (-18.8%) Est. Cost $1.00 Unrealized
TALO TALOS ENERGY INC 0.5%
Value $15.03M (-28.3%) Shares 1,163,908 (-12.4%) Est. Cost $32.68 Unrealized
BURLINGTON STORES INC 0.9%
Value $27.99M (-17.0%) Shares 17,529,000 (-14.0%) Est. Cost $1.41 Unrealized
GPOR GULFPORT ENERGY CORP 0.6%
Value $16.55M (-20.7%) Shares 97,512 (-1.1%) Est. Cost $170.19 Unrealized
BLACKROCK MUNIHLDGS NJ QLTY 0.4%
Value $10.86M (-18.3%) Shares 881,952 (-23.2%) Est. Cost $13.30 Unrealized
BLACKROCK MUNIYIELD MICH QU 0.2%
Value $5.886M (-24.8%) Shares 479,747 (-27.2%) Est. Cost $14.50 Unrealized
TETRA TECH INC NEW 1.9%
Value $55.27M (-3.3%) Shares 52,445,000 (-3.8%) Est. Cost $1.31 Unrealized
LIVE NATION ENTERTAINMENT IN 0.3%
Value $8.33M (+16.0%) Shares 4,676,000 (-1.1%) Est. Cost $1.20 Unrealized
BLACKROCK MUNIYIELD QUALITY 0.2%
Value $4.877M (-11.8%) Shares 439,004 (-16.6%) Est. Cost $10.51 Unrealized
BLACKLINE INC 0.0%
Value $272K (-54.5%) Shares 295,000 (-53.5%) Est. Cost $1.07 Unrealized
WORKIVA INC 0.5%
Value $15.54M (-1.7%) Shares 16,585,000 (-1.6%) Est. Cost $0.95 Unrealized
SOUTHERN CO 0.2%
Value $6.134M (-2.1%) Shares 5,569,000 (-1.3%) Est. Cost $1.11 Unrealized
WEC ENERGY GROUP INC 0.2%
Value $6.396M (-1.8%) Shares 5,162,000 (-2.0%) Est. Cost $1.23 Unrealized
BLACKROCK MUNIHLDNGS CALI 0.0%
Value $1.416M (-7.3%) Shares 128,815 (-12.3%) Est. Cost $10.75 Unrealized
SHIFT4 PMTS INC 0.6%
Value $18.29M (-0.5%) Shares 19,157,000 (-1.9%) Est. Cost $1.08 Unrealized
INTEGER HLDGS CORP 0.2%
Value $4.573M (+0.7%) Shares 3,756,000 (-2.3%) Est. Cost $1.44 Unrealized
FIVE9 INC 0.2%
Value $5.476M (+0.2%) Shares 6,155,000 (-1.8%) Est. Cost $0.86 Unrealized

Unchanged Positions (61)

MKS INC. 3.6%
Value $107M Shares 36,470,000 Est. Cost $0.99 Unrealized
HEWLETT PACKARD ENTERPRISE C 2.4%
Value $70.21M Shares 601,263 Est. Cost $54.39 Unrealized
CHEFS WHSE INC 1.8%
Value $53.04M Shares 23,710,000 Est. Cost $1.01 Unrealized
SNOWFLAKE INC 1.8%
Value $54.16M Shares 32,541,000 Est. Cost $1.49 Unrealized
LANTHEUS HLDGS INC 2.5%
Value $74M Shares 50,863,000 Est. Cost $1.13 Unrealized
MICROCHIP TECHNOLOGY INC. 1.6%
Value $46.45M Shares 603,491 Est. Cost $52.97 Unrealized
QXO INC 1.9%
Value $57.41M Shares 1,169,488 Est. Cost $60.15 Unrealized
SYNAPTICS INC 0.8%
Value $24.04M Shares 16,169,000 Est. Cost $1.06 Unrealized
AFFIRM HLDGS INC 1.1%
Value $31.7M Shares 27,113,000 Est. Cost $1.09 Unrealized
PATRICK INDS INC 0.9%
Value $28.33M Shares 19,118,000 Est. Cost $0.91 Unrealized
NORTHERN OIL & GAS INC 1.1%
Value $31.9M Shares 33,241,000 Est. Cost $1.16 Unrealized
UNITY SOFTWARE INC 1.0%
Value $30.46M Shares 26,904,000 Est. Cost $1.00 Unrealized
LIVE NATION ENTERTAINMENT IN 1.2%
Value $35.57M Shares 29,737,000 Est. Cost $1.05 Unrealized
LIBERTY MEDIA CORP DEL 1.4%
Value $42.05M Shares 33,894,000 Est. Cost $0.99 Unrealized
UPSTART HLDGS INC 0.7%
Value $20.63M Shares 25,168,000 Est. Cost $0.88 Unrealized
LIBERTY MEDIA CORP DEL 0.9%
Value $28.08M Shares 24,458,000 Est. Cost $1.23 Unrealized
BOEING CO 1.9%
Value $56.17M Shares 828,674 Est. Cost $63.28 Unrealized
FLUOR CORP 1.2%
Value $34.7M Shares 26,167,000 Est. Cost $1.31 Unrealized
RIVIAN AUTOMOTIVE INC 0.7%
Value $22.06M Shares 18,580,000 Est. Cost $0.82 Unrealized
POST HLDGS INC 1.4%
Value $41.66M Shares 40,161,000 Est. Cost $1.03 Unrealized
PROGRESS SOFTWARE CORP 0.9%
Value $27.47M Shares 28,590,000 Est. Cost $1.08 Unrealized
MERITAGE HOMES CORP 1.0%
Value $29M Shares 28,031,000 Est. Cost $0.97 Unrealized
AKAMAI TECHNOLOGIES INC 1.4%
Value $40.84M Shares 34,024,000 Est. Cost $1.10 Unrealized
DROPBOX INC 0.8%
Value $24.61M Shares 24,323,000 Est. Cost $0.95 Unrealized
APOLLO GLOBAL MGMT INC 1.5%
Value $43.46M Shares 713,153 Est. Cost $54.97 Unrealized
BLACKROCK MUNIYIELD N Y QUAL 0.8%
Value $23.85M Shares 2,349,687 Est. Cost $10.57 Unrealized
BANK OF AMER CORP 0.9%
Value $26.13M Shares 20,806 Est. Cost $1416.89 Unrealized
BLACKROCK MUNIHOLDINGS FD IN 0.8%
Value $23.59M Shares 1,982,355 Est. Cost $13.19 Unrealized
ALNYLAM PHARMACEUTICALS INC 0.6%
Value $17.87M Shares 14,834,000 Est. Cost $0.98 Unrealized
GUIDEWIRE SOFTWARE INC 0.8%
Value $23.98M Shares 24,911,000 Est. Cost $1.10 Unrealized
BLACKROCK MUNIYILD QULT FD I 0.6%
Value $18.49M Shares 1,594,019 Est. Cost $12.25 Unrealized
OSI SYSTEMS INC 0.2%
Value $5.98M Shares 4,485,000 Est. Cost $1.45 Unrealized
GLD SPDR GOLD TR 0.2%
Value $5.649M Shares 15,336 Est. Cost $112.08 Unrealized
INTEGER HLDGS CORP 1.5%
Value $43.94M Shares 45,243,000 Est. Cost $0.96 Unrealized
ORACLE CORP 1.0%
Value $29.12M Shares 645,801 Est. Cost $45.95 Unrealized
CLOUDFLARE INC 0.2%
Value $7.243M Shares 5,637,000 Est. Cost $1.01 Unrealized
PG&E CORP 1.6%
Value $47.53M Shares 46,453,000 Est. Cost $1.09 Unrealized
NUTANIX INC 0.2%
Value $5.164M Shares 4,582,000 Est. Cost $1.21 Unrealized
BRIDGEBIO PHARMA INC 1.2%
Value $36.92M Shares 33,259,000 Est. Cost $0.88 Unrealized
HALOZYME THERAPEUTICS INC 0.2%
Value $6.008M Shares 5,407,000 Est. Cost $1.14 Unrealized
BILL HOLDINGS INC 0.4%
Value $13.08M Shares 15,102,000 Est. Cost $0.92 Unrealized
FRESHPET INC 1.2%
Value $36.96M Shares 31,800,000 Est. Cost $1.13 Unrealized
SPECTRUM BRANDS INC 0.3%
Value $8.208M Shares 7,857,000 Est. Cost $0.91 Unrealized
ARES MANAGEMENT CORPORATION 0.6%
Value $18.11M Shares 479,735 Est. Cost $55.78 Unrealized
GREENBRIER COS INC 0.7%
Value $21.77M Shares 19,032,000 Est. Cost $0.94 Unrealized
UBER TECHNOLOGIES INC 1.8%
Value $54.33M Shares 45,364,000 Est. Cost $1.12 Unrealized
GLOBAL PMTS INC 0.4%
Value $11.59M Shares 12,879,000 Est. Cost $0.95 Unrealized
VERTEX INC 0.3%
Value $8.189M Shares 9,152,000 Est. Cost $1.20 Unrealized
BIOMARIN PHARMACEUTICAL INC 0.9%
Value $25.74M Shares 26,434,000 Est. Cost $1.02 Unrealized
ABRDN NATL MUN INCOME FD 0.1%
Value $4.166M Shares 401,695 Est. Cost $13.32 Unrealized
IRHYTHM HOLDINGS INC 1.2%
Value $35.9M Shares 32,598,000 Est. Cost $1.15 Unrealized
TELADOC HEALTH INC 0.2%
Value $7.314M Shares 7,505,000 Est. Cost $1.12 Unrealized
MGP INGREDIENTS INC NEW 0.5%
Value $13.86M Shares 14,243,000 Est. Cost $1.26 Unrealized
ABERDEEN MUN INCOME FD 0.1%
Value $1.876M Shares 333,822 Est. Cost $6.77 Unrealized
WW WW INTL INC 0.0%
Value $230K Shares 14,371 Est. Cost $34.35 Unrealized
PARSONS CORP DEL 0.9%
Value $25.81M Shares 26,167,000 Est. Cost $1.01 Unrealized
EATON VANCE MUN BD FD 0.0%
Value $1.253M Shares 125,764 Est. Cost $10.17 Unrealized
PPL CAP FDG INC 0.0%
Value $568K Shares 500,000 Est. Cost $0.96 Unrealized
WELLS FARGO & CO 0.6%
Value $17.11M Shares 14,748 Est. Cost $1489.39 Unrealized
SECR NEW YORK LIFE INVTS ACTIVE E 0.0%
Value $292K Shares 11,504 Est. Cost $25.73 Unrealized
CHEGG INC 0.0%
Value $43,034 Shares 45,000 Est. Cost $0.99 Unrealized