Mackay Shields LLC Top Holdings and 13F Report (2025)

About Mackay Shields LLC

Investment Activity

Mackay Shields LLC has $3.11 billion in total holdings as of March 31, 2025.
Mackay Shields LLC owns shares of 144 different stocks, but just 65 companies or ETFs make up 80% of its holdings.
Approximately 8.84% of the portfolio was purchased this quarter.
About 16.70% of the portfolio was sold this quarter.
This quarter, Mackay Shields LLC has purchased 147 new stocks and bought additional shares in 27 stocks.
Mackay Shields LLC sold shares of 61 stocks and completely divested from 14 stocks this quarter.

Largest Holdings

LANTHEUS HLDGS INC: $79,180,564
NRG ENERGY INC: $77,435,408
POST HLDGS INC: $70,162,274
TETRA TECH INC NEW: $66,896,895
PG&E CORP: $64,496,111

Largest New Holdings this Quarter

18915MAC1 - CLOUDFLARE INC: $37,702,671 Holding
37940XAU6 - GLOBAL PMTS INC: $25,976,210 Holding
595017302 - MICROCHIP TECHNOLOGY INC.: $25,508,798 Holding
500688AH9 - KOSMOS ENERGY LTD: $25,173,447 Holding
70202LAD4 - PARSONS CORP DEL: $22,454,632 Holding

Largest Purchases this Quarter

CLOUDFLARE INC: 37,498,000 shares (about $37.70M)
GLOBAL PMTS INC: 27,430,000 shares (about $25.98M)
MICROCHIP TECHNOLOGY INC.: 508,650 shares (about $25.51M)
KOSMOS ENERGY LTD: 32,707,000 shares (about $25.17M)
PARSONS CORP DEL: 22,421,000 shares (about $22.45M)

Largest Sales this Quarter

INTEGER HLDGS CORP: 38,079,000 shares (about $55.48M)
SOUTHWEST AIRLS CO: 28,873,000 shares (about $28.86M)
BOOKING HOLDINGS INC: 11,000,000 shares (about $27.08M)
TRANSMEDICS GROUP INC: 21,277,000 shares (about $22.88M)
PALO ALTO NETWORKS INC: 6,064,000 shares (about $20.81M)

Sector Allocation Over Time

Selling

Neutral

Buying

Latest 13F Holdings and Changes Since Previous Quarterly Filing

Issuer Name	Holdings Value	Approximate Purchase/Sale	Change in Shares	Shares Held	% of Portfolio	Sector
LANTHEUS HLDGS INC	$79,180,564	$4,240 ▲	0.0%	56,019,000	2.5%	NOTE 2.625%12/1
NRG ENERGY INC	$77,435,408	$286,608 ▼	-0.4%	33,232,000	2.5%	DBCV 2.750% 6/0
POST HLDGS INC	$70,162,274	$309,316 ▼	-0.4%	58,749,000	2.3%	NOTE 2.500% 8/1
TETRA TECH INC NEW	$66,896,895	$634,750 ▲	1.0%	64,710,000	2.2%	DBCV 2.250% 8/1
PG&E CORP	$64,496,111	$95,289 ▼	-0.1%	60,916,000	2.1%	NOTE 4.250%12/0
NICE LTD	$57,649,527	$9,408,296 ▼	-14.0%	58,959,000	1.9%	NOTE 9/1
HALOZYME THERAPEUTICS INC	$56,176,449	$348,437 ▼	-0.6%	43,853,000	1.8%	NOTE 1.000% 8/1
NUTANIX INC	$54,746,131	$293,674 ▼	-0.5%	41,012,000	1.8%	NOTE 0.250%10/0
APOLLO GLOBAL MGMT INC	$53,566,501	$349,185 ▼	-0.6%	728,825	1.7%	SER A MAND CNV
UBER TECHNOLOGIES INC	$52,975,391	$6,550,320 ▲	14.1%	43,373,000	1.7%	NOTE 0.875%12/0
BIOMARIN PHARMACEUTICAL INC	$51,844,759	$6,428,448 ▼	-11.0%	54,930,000	1.7%	NOTE 1.250% 5/1
NEXTERA ENERGY INC	$49,575,201	$163,341 ▼	-0.3%	1,212,815	1.6%	UNIT 09/01/2025
ON SEMICONDUCTOR CORP	$48,428,766	$247,284 ▼	-0.5%	56,011,000	1.6%	NOTE 0.500% 3/0
CHEFS WHSE INC	$48,393,671	$6,604,133 ▼	-12.0%	34,785,000	1.6%	NOTE 2.375%12/1
FORD MTR CO	$47,138,957	$10,272,429 ▼	-17.9%	48,041,000	1.5%	NOTE 3/1
ADVANCED ENERGY INDS	$46,837,409	$5,638,064 ▲	13.7%	45,624,000	1.5%	NOTE 2.500% 9/1
MIRUM PHARMACEUTICALS INC	$45,472,783	$156,141 ▼	-0.3%	27,958,000	1.5%	NOTE 4.000% 5/0
NEA Nuveen AMT-Free Quality Municipal Income Fund	$44,829,556	$429,654 ▼	-0.9%	4,002,639	1.4%	Financial Services
NCL CORP LTD	$43,929,004		0.0%	45,148,000	1.4%	NOTE 1.125% 2/1
AKAMAI TECHNOLOGIES INC	$43,156,430	$6,084,974 ▲	16.4%	44,185,000	1.4%	NOTE 0.375% 9/0
CABLE ONE INC	$42,743,799		0.0%	53,680,000	1.4%	NOTE 1.125% 3/1
LIBERTY MEDIA CORP DEL	$42,371,565	$314,017 ▼	-0.7%	34,813,000	1.4%	NOTE 2.250% 8/1
PATRICK INDS INC	$41,436,358	$17,346,332 ▼	-29.5%	29,561,000	1.3%	NOTE 1.750%12/0
SHIFT4 PMTS INC	$40,580,000		0.0%	40,000,000	1.3%	NOTE 0.500% 8/0
IAU iShares Gold Trust	$38,913,600	$1,768,800 ▼	-4.3%	660,000	1.3%	Finance
TYLER TEX INDPT SCH DIST	$37,934,163		0.0%	31,006,000	1.2%	NOTE 0.250% 3/1
CLOUDFLARE INC	$37,702,671	$37,702,671 ▲	New Holding	37,498,000	1.2%	NOTE 8/1
BANK AMERICA CORP	$37,099,685	$16,103 ▼	0.0%	29,951	1.2%	7.25%CNV PFD L
BOEING CO	$36,852,378	$312,257 ▼	-0.8%	622,080	1.2%	DEP CONV PFD A
NZF Nuveen Municipal Credit Income Fund	$36,440,386	$836,177 ▼	-2.2%	2,979,590	1.2%	Financial Services
SEAGATE HDD CAYMAN	$36,345,073		0.0%	30,140,000	1.2%	NOTE 3.500% 6/0
ETSY INC	$36,338,737	$158,003 ▲	0.4%	37,718,000	1.2%	NOTE 0.125%10/0
PERMIAN RESOURCES CORP	$35,965,594	$912,894 ▼	-2.5%	14,774,000	1.2%	NOTE 3.250% 4/0
NORTHERN OIL & GAS INC	$34,202,057	$65,537 ▼	-0.2%	32,356,000	1.1%	NOTE 3.625% 4/1
SOUTHWEST AIRLS CO	$33,920,560	$28,864,116 ▼	-46.0%	33,931,000	1.1%	NOTE 1.250% 5/0
WFC.PL Wells Fargo & Co. Pfd. Series L	$33,885,567		0.0%	28,119	1.1%	Finance
BTT Blackrock Municipal 2030 Target Term Trust	$33,201,746	$3,443,633 ▲	11.6%	1,563,907	1.1%	Financial Services
ZSCALER INC	$32,236,572	$302,541 ▼	-0.9%	24,294,000	1.0%	NOTE 0.125% 7/0
CONMED CORP	$31,820,634	$19,577,802 ▼	-38.1%	33,812,000	1.0%	NOTE 2.250% 6/1
LIBERTY MEDIA CORP DEL	$31,004,892		0.0%	29,835,000	1.0%	NOTE 3.750% 3/1
OIL STS INTL INC	$30,694,580		0.0%	31,321,000	1.0%	NOTE 4.750% 4/0
TALO Talos Energy	$30,444,751		0.0%	3,132,176	1.0%	Energy
NVG Nuveen AMT-Free Municipal Credit Income Fund	$30,005,195	$484,912 ▼	-1.6%	2,423,683	1.0%	Financial Services
IONIS PHARMACEUTICALS INC	$29,939,757		0.0%	30,793,000	1.0%	NOTE 1.750% 6/1
HEWLETT PACKARD ENTERPRISE C	$29,312,909	$14,494,083 ▲	97.8%	611,725	0.9%	7.625 MAND CONV
LUMENTUM HLDGS INC	$28,207,293	$412,293 ▲	1.5%	30,445,000	0.9%	NOTE 0.500% 6/1
BOOKING HOLDINGS INC	$27,874,395	$27,079,250 ▼	-49.3%	11,323,000	0.9%	NOTE 0.750% 5/0
JAZZ INVESTMENTS I LTD	$27,478,054		0.0%	26,453,000	0.9%	NOTE 2.000% 6/1
BURLINGTON STORES INC	$27,202,203		0.0%	20,561,000	0.9%	NOTE 1.250%12/1
PALO ALTO NETWORKS INC	$27,069,851	$20,805,016 ▼	-43.5%	7,890,000	0.9%	NOTE 0.375% 6/0
GLOBAL PMTS INC	$25,976,210	$25,976,210 ▲	New Holding	27,430,000	0.8%	NOTE 1.500% 3/0
NAD Nuveen Quality Municipal Income Fund	$25,688,079	$97,010 ▼	-0.4%	2,229,868	0.8%	Financial Services
CHEESECAKE FACTORY INC	$25,665,015	$320,355 ▼	-1.2%	25,957,000	0.8%	NOTE 0.375% 6/1
MICROCHIP TECHNOLOGY INC.	$25,508,798	$25,508,798 ▲	New Holding	508,650	0.8%	DEP SHS REPSTG
HAEMONETICS CORP MASS	$25,451,652	$298,000 ▼	-1.2%	26,562,000	0.8%	NOTE 3/0
KOSMOS ENERGY LTD	$25,173,447	$25,173,447 ▲	New Holding	32,707,000	0.8%	NOTE 3.125% 3/1
WESTERN DIGITAL CORP	$25,000,067	$5,670,769 ▲	29.3%	19,411,000	0.8%	NOTE 3.000%11/1
NAC Nuveen California Quality Municipal Income Fund	$24,558,389	$455,153 ▼	-1.8%	2,184,910	0.8%	Financial Services
CABLE ONE INC	$24,438,750		0.0%	25,725,000	0.8%	NOTE 3/1
DROPBOX INC	$24,342,257		0.0%	24,613,000	0.8%	NOTE 3/0
MGP INGREDIENTS INC NEW	$24,107,448	$20,252,151 ▼	-45.7%	25,450,000	0.8%	NOTE 1.875%11/1
MHD BlackRock MuniHoldings Fund	$23,241,514	$705,797 ▲	3.1%	1,979,686	0.7%	Financial Services
DEXCOM INC	$23,109,946	$16,258,910 ▼	-41.3%	23,717,000	0.7%	NOTE 0.250%11/1
ARES MANAGEMENT CORPORATION	$23,099,943	$120,769 ▼	-0.5%	481,629	0.7%	6.75 SE B PFD
PARSONS CORP DEL	$22,454,632	$22,454,632 ▲	New Holding	22,421,000	0.7%	NOTE 2.625% 3/0
CHART INDS INC	$22,310,230	$143,783 ▼	-0.6%	402,965	0.7%	6.75DP CNV PFD B
PROGRESS SOFTWARE CORP	$22,132,845	$22,132,845 ▲	New Holding	20,979,000	0.7%	NOTE 3.500% 3/0
BRIDGEBIO PHARMA INC	$22,075,933	$1,522,634 ▲	7.4%	24,488,000	0.7%	NOTE 2.250% 2/0
GREENBRIER COS INC	$21,320,430		0.0%	19,205,000	0.7%	NOTE 2.875% 4/1
AMPHASTAR PHARMACEUTICALS IN	$20,690,617	$15,466,938 ▼	-42.8%	23,215,000	0.7%	NOTE 2.000% 3/1
IRHYTHM TECHNOLOGIES INC	$19,467,536	$19,467,536 ▲	New Holding	18,656,000	0.6%	NOTE 1.500% 9/0
RIVIAN AUTOMOTIVE INC	$18,502,222	$149,582 ▲	0.8%	18,925,000	0.6%	NOTE 4.625% 3/1
ALNYLAM PHARMACEUTICALS INC	$17,708,040	$845,547 ▲	5.0%	15,351,000	0.6%	NOTE 1.000% 9/1
FET Forum Energy Technologies	$17,605,340	$720,783 ▼	-3.9%	875,452	0.6%	Energy
WORKIVA INC	$15,922,043		0.0%	17,070,000	0.5%	NOTE 1.250% 8/1
DHR Danaher	$15,725,960		0.0%	76,712	0.5%	Medical
TELADOC HEALTH INC	$14,311,413	$9,209,996 ▼	-39.2%	15,539,000	0.5%	NOTE 1.250% 6/0
ROYAL CARIBBEAN GROUP	$14,074,925	$18,299,057 ▼	-56.5%	3,402,000	0.5%	NOTE 6.000% 8/1
MUJ BlackRock MuniHoldings New Jersey Quality Fund	$14,074,313		0.0%	1,251,050	0.5%	Finance
OKTA INC	$13,559,515		0.0%	13,787,000	0.4%	NOTE 0.125% 9/0
ENVISTA HOLDINGS CORPORATION	$13,463,787	$13,260,584 ▼	-49.6%	14,908,000	0.4%	NOTE 1.750% 8/1
SUMMIT HOTEL PPTYS	$12,839,894	$12,693,191 ▼	-49.7%	13,391,000	0.4%	NOTE 1.500% 2/1
MHN BlackRock MuniHoldings New York Quality Fund	$12,119,648		0.0%	1,194,054	0.4%	Finance
MYN BlackRock MuniYield New York Quality Fund	$11,383,305	$2,073,692 ▲	22.3%	1,146,355	0.4%	Finance
IMPINJ INC	$11,350,135		0.0%	9,965,000	0.4%	NOTE 1.125% 5/1
RAPID7 INC	$11,158,851		0.0%	12,965,000	0.4%	NOTE 1.250% 3/1
FIVE9 INC	$11,108,806	$11,108,806 ▲	New Holding	12,970,000	0.4%	NOTE 1.000% 3/1
TRANSMEDICS GROUP INC	$10,881,339	$22,884,477 ▼	-67.8%	10,117,000	0.3%	NOTE 1.500% 6/0
MUC BlackRock MuniHoldings California Quality Fund	$10,513,653	$9,120,860 ▲	654.9%	981,667	0.3%	Finance
GPOR Gulfport Energy	$10,455,837	$6,831,594 ▲	188.5%	56,782	0.3%	Energy
MQT BlackRock MuniYield Quality Fund II	$10,268,050	$347,200 ▲	3.5%	1,026,805	0.3%	Finance
MVF BlackRock MuniVest Fund	$9,957,242	$800,044 ▼	-7.4%	1,420,434	0.3%	Finance
NEUBERGER BERMAN MUN FD INC	$9,790,477	$9,790,477 ▲	New Holding	941,392	0.3%	COM
Q2 HLDGS INC	$8,504,162		0.0%	7,755,000	0.3%	NOTE 0.750% 6/0
NRK Nuveen New York AMT-Free Quality Municipal Income Fund	$8,215,640		0.0%	797,635	0.3%	Financial Services
SOLAREDGE TECHNOLOGIES INC	$8,109,396		0.0%	8,343,000	0.3%	NOTE 9/1
BENTLEY SYS INC	$7,842,556		0.0%	8,106,000	0.3%	NOTE 0.125% 1/1
MIY BlackRock MuniYield Michigan Quality Fund	$7,565,640		0.0%	664,819	0.2%	Finance
AMERICAN AIRLINES GROUP INC	$7,328,716	$6,907,928 ▼	-48.5%	7,315,000	0.2%	NOTE 6.500% 7/0
LIVE NATION ENTERTAINMENT IN	$7,304,696	$279,293 ▼	-3.7%	5,257,000	0.2%	NOTE 3.125% 1/1

Showing largest 100 holdings. View all holdings.

More Institutional Buying and Selling Information

SEC Filings and Trading Data

Get 30 Days of MarketBeat All Access for Free

Start Your 30-Day Trial

In-depth profiles and analysis for 20,000 public companies.
Real-time analyst ratings, insider transactions, earnings data, and more.
Our daily ratings and market update email newsletter.

Sign In
Create Account

Your Email Address:

Your Password:

Forgot your password?

Your Email Address:

Choose a Password:

By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Mackay Shields LLC Top Holdings and 13F Report (2025)

About Mackay Shields LLC

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools

About MarketBeat

MarketBeat Products

Popular Tools

Financial Calendars

Terms & Info

Mackay Shields LLC Top Holdings and 13F Report (2025)

About Mackay Shields LLC

Investment Activity

Largest Holdings

Largest New Holdings this Quarter

Largest Purchases this Quarter

Largest Sales this Quarter

Sector Allocation Over Time

Map of 500 Largest Holdings ofMackay Shields LLC

Latest 13F Holdings and Changes Since Previous Quarterly Filing

More Institutional Buying and Selling Information

MarketBeat All Access Features

Best-in-Class Portfolio Monitoring

Stock Ideas and Recommendations

Advanced Stock Screeners and Research Tools