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MacKay Shields

Latest statistics and disclosures from Mackay Shields's latest quarterly 13F-HR filing:

Top 5 stock holdings are Western Digital Corp, Lumentum Holdings, Advanced Energy Inds, Mirum Pharmaceuticals Inc Note 4.000 5/0, Lantheus Hldgs Inc Note 2.62512/1, and represent 13.17% of Mackay Shields's stock portfolio.
Added to shares of these 10 stocks: Datadog (+$34M), Live Nation Entertainment In (+$31M), Nutanix (+$29M), Guidewire Software (+$28M), Affirm Hldgs (+$27M), Upstart Hldgs (+$22M), Synaptics (+$17M), Bill Holdings (+$14M), Snowflake (+$5.2M), BAC.PL.
Started 10 new stock positions in SECR, Upstart Hldgs, Datadog, CWB, Synaptics, Bill Holdings, Guidewire Software, Live Nation Entertainment In, Nutanix, Affirm Hldgs.
Reduced shares in these 10 stocks: Halozyme Therapeutics (-$49M), Osi Systems (-$42M), Seagate Hdd Cayman (-$41M), Nutanix (-$41M), Ionis Pharmaceuticals (-$28M), Lumentum Hldgs (-$22M), NEA (-$21M), Oil Sts Intl (-$17M), NVG (-$14M), NZF (-$14M).
Sold out of its positions in Bill Com Hldgs, ENX, Exact Sciences Corp note 0.375% 3/0, IQI, Lumentum Hldgs, NINEQ, NEA, NAD, NAC, NVG. Pebblebrook Hotel Tr, Shift4 Payments, Southern, VOD.
Mackay Shields was a net seller of stock by $-204M.
Mackay Shields has $2.9B in assets under management (AUM), dropping by -2.77%.
Central Index Key (CIK): 0000061227

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Portfolio Holdings for Mackay Shields

Mackay Shields holds 132 positions in its portfolio as reported in the December 2025 quarterly 13F filing

Company (Ticker)	Portfolio Weight	Valued At	Change in Shares	Share Count	Share Price
Western Digital Corp Note 3.000%11/1 (Principal)	3.0	$87M		19M	4.58	View chart
Lumentum Hldgs Note 0.500% 6/1 (Principal)	3.0	$85M		30M	2.84	View chart
Advanced Energy Inds Note 2.500% 9/1 (Principal)	2.6	$73M		45M	1.64	View chart
Mirum Pharmaceuticals Note 4.000% 5/0 (Principal)	2.3	$66M	-2%	26M	2.58	View chart
Lantheus Hldgs Note 2.625%12/1 (Principal)	2.3	$65M		57M	1.15	View chart
Tetra Tech DBCV 2.250% 8/1 (Principal)	2.3	$65M		60M	1.09	View chart
Qxo 5.50 Dep Pfd (QXO.PB)	2.3	$65M		1.2M	55.15	View chart
Boeing Dep Conv Pfd A (BA.PA)	2.0	$58M		830k	69.53	View chart
Cable One Note 1.125% 3/1 (Principal)	2.0	$57M	+2%	69M	0.82	View chart
Uber Technologies Note 0.875%12/0 (Principal)	1.9	$55M		43M	1.30	View chart
Apollo Global Mgmt Ser A Mand Cnv (APO.PA)	1.9	$54M		714k	75.52	View chart
Post Hldgs Note 2.500% 8/1 (Principal)	1.9	$53M		50M	1.08	View chart
Pg&e Corp Note 4.250%12/0 (Principal)	1.9	$53M	-14%	52M	1.03	View chart
On Semiconductor Corp Note 5/0 (Principal)	1.6	$47M		39M	1.19	View chart
MKS Note 1.250% 6/0 (Principal)	1.6	$47M		37M	1.28	View chart
Irhythm Technologies Note 1.500% 9/0 (Principal)	1.6	$46M	+5%	33M	1.40	View chart
Seagate Hdd Cayman Note 3.500% 6/0 (Principal)	1.6	$45M	-48%	13M	3.36	View chart
Snowflake Note 10/0 (Principal)	1.6	$44M	+13%	30M	1.49	View chart
Liberty Media Corp Del Note 2.250% 8/1 (Principal)	1.5	$43M		34M	1.26	View chart
Hewlett Packard Enterprise C 7.625 Mand Conv (HPE.PC)	1.4	$40M		598k	66.69	View chart
Ncl Corp Note 1.125% 2/1 (Principal)	1.4	$39M		39M	1.00	View chart
Ishares Gold Tr Ishares New (IAU)	1.3	$39M	-9%	475k	81.17	View chart
Shift4 Pmts Note 0.500% 8/0 (Principal)	1.3	$38M		40M	0.96	View chart
Etsy Note 0.125%10/0 (Principal)	1.3	$37M		37M	1.01	View chart
Chefs Whse Note 2.375%12/1 (Principal)	1.3	$36M		24M	1.52	View chart
Meritage Homes Corp Note 1.750% 5/1 (Principal)	1.3	$36M		36M	0.99	View chart
Patrick Inds Note 1.750%12/0 (Principal)	1.3	$36M	-9%	21M	1.70	View chart
Microchip Technology Dep Shs Repstg (MCHPP)	1.2	$35M		602k	58.28	View chart
Akamai Technologies Note 0.375% 9/0 (Principal)	1.2	$34M	-22%	34M	1.00	View chart
Dexcom Note 0.375% 5/1 (Principal)	1.2	$34M		37M	0.92	View chart
Datadog Note 12/0 (Principal)	1.2	$34M	NEW	34M	1.00	View chart
Biomarin Pharmaceutical Note 1.250% 5/1 (Principal)	1.2	$33M		35M	0.96	View chart
Talos Energy (TALO)	1.2	$33M	-2%	3.0M	11.02	View chart
Bridgebio Pharma Note 2.250% 2/0 (Principal)	1.1	$32M		29M	1.13	View chart
Ford Mtr Note 3/1 (Principal)	1.1	$31M	-2%	30M	1.04	View chart
Live Nation Entertainment In Note 2.875% 1/1 (Principal)	1.1	$31M	NEW	30M	1.05	View chart
Blackrock Mun Target Term Tr Com Shs Ben In (BTT)	1.1	$31M	-3%	1.4M	22.82	View chart
Tyler Tex Indpt Sch Dist Note 0.250% 3/1 (Principal)	1.1	$31M		30M	1.01	View chart
Burlington Stores Note 1.250%12/1 (Principal)	1.1	$30M		20M	1.49	View chart
Fluor Corp Note 1.125% 8/1 (Principal)	1.1	$30M		26M	1.14	View chart
Liberty Media Corp Del Note 3.750% 3/1 (Principal)	1.0	$30M		30M	1.01	View chart
Progress Software Corp Note 3.500% 3/0 (Principal)	1.0	$29M		29M	1.01	View chart
Northern Oil & Gas Note 3.625% 4/1 (Principal)	1.0	$29M	-6%	30M	0.97	View chart
Nutanix Note 0.500%12/1 (Principal)	1.0	$29M	NEW	30M	0.97	View chart
Guidewire Software Note 1.250%11/0 (Principal)	1.0	$28M	NEW	25M	1.10	View chart
Parsons Corp Del Note 2.625% 3/0 (Principal)	0.9	$27M		26M	1.03	View chart
Affirm Hldgs Note 0.750%12/1 (Principal)	0.9	$27M	NEW	24M	1.11	View chart
Bank America Corp 7.25%CNV PFD L (BAC.PL)	0.9	$26M	+19%	21k	1252.00	View chart
Q2 HLDGS Note 0.750% 6/0 (Principal)	0.9	$26M		26M	1.01	View chart
BlackRock MuniHoldings Fund (MHD)	0.9	$25M		2.2M	11.74	View chart
Freshpet Note 3.000% 4/0 (Principal)	0.9	$25M		21M	1.17	View chart
Cable One Note 3/1 (Principal)	0.9	$25M		25M	0.99	View chart
Dropbox Note 3/0 (Principal)	0.9	$25M		24M	1.01	View chart
Nextera Energy Unit 06/01/2027 (NEE.PS)	0.8	$24M		463k	51.66	View chart
Ares Management Corporation 6.75 Se B Pfd (ARES.PB)	0.8	$24M		473k	50.56	View chart
Rivian Automotive Note 4.625% 3/1 (Principal)	0.8	$23M		19M	1.26	View chart
Gulfport Energy Corp Common Shares (GPOR)	0.8	$23M	-17%	109k	207.99	View chart
Upstart Hldgs Note 1.000%11/1 (Principal)	0.8	$22M	NEW	25M	0.88	View chart
Alnylam Pharmaceuticals Note 1.000% 9/1 (Principal)	0.8	$22M	-2%	15M	1.47	View chart
Greenbrier Cos Note 2.875% 4/1 (Principal)	0.7	$21M		19M	1.08	View chart
Wells Fargo Perp Pfd Cnv A (WFC.PL)	0.6	$18M	-4%	15k	1212.00	View chart
Lumentum Hldgs Note 0.500%12/1 (Principal)	0.6	$18M	-2%	4.8M	3.71	View chart
Vertex Note 0.750% 5/0 (Principal)	0.6	$17M		18M	0.95	View chart
Synaptics Note 0.750%12/0 (Principal)	0.6	$17M	NEW	16M	1.06	View chart
Workiva Note 1.250% 8/1 (Principal)	0.6	$17M		17M	0.99	View chart
Ionis Pharmaceuticals Note 1.750% 6/1 (Principal)	0.6	$17M	-62%	10M	1.59	View chart
Impinj Note 1.125% 5/1 (Principal)	0.6	$16M		9.9M	1.63	View chart
Global Pmts Note 1.500% 3/0 (Principal)	0.6	$16M	-33%	18M	0.90	View chart
Cheesecake Factory Note 0.375% 6/1 (Principal)	0.5	$15M	-2%	16M	0.99	View chart
Jazz Investments I Note 2.000% 6/1 (Principal)	0.5	$15M	-2%	13M	1.16	View chart
BlackRock MuniHoldings New Jersey Ins Fn (MUJ)	0.5	$15M		1.2M	11.90	View chart
Teladoc Health Note 1.250% 6/0 (Principal)	0.5	$15M		15M	0.95	View chart
Bill Holdings Note 4/0 (Principal)	0.5	$14M	NEW	15M	0.92	View chart
Mgp Ingredients Note 1.875%11/1 (Principal)	0.5	$14M	-2%	14M	0.97	View chart
Neuberger Ber. Intermediate Muni. Fund (NBH)	0.4	$13M		1.2M	10.12	View chart
BlackRock MuniHoldings New York Insured (MHN)	0.4	$12M		1.2M	10.23	View chart
Rapid7 Note 1.250% 3/1 (Principal)	0.4	$12M		13M	0.91	View chart
BlackRock MuniYield New York Insured Fnd (MYN)	0.4	$12M		1.2M	9.91	View chart
Five9 Note 1.000% 3/1 (Principal)	0.4	$12M	-4%	13M	0.90	View chart
Aerovironment Note 7/1 (Principal)	0.4	$11M		10M	1.09	View chart
Blackrock MuniHoldings CA Insrd Fnd (MUC)	0.4	$10M		981k	10.60	View chart
Blackrock Muniyield Quality Fund II (MQT)	0.4	$10M		1.0M	10.05	View chart
Haemonetics Corp Mass Note 3/0 (Principal)	0.3	$8.4M	-5%	8.5M	0.99	View chart
Blackrock Mun Income Tr Sh Ben Int (BFK)	0.3	$8.4M		834k	10.03	View chart
BlackRock MuniVest Fund (MVF)	0.3	$8.3M	-2%	1.2M	6.93	View chart
Amphastar Pharmaceuticals In Note 2.000% 3/1 (Principal)	0.3	$8.1M	-24%	8.7M	0.93	View chart
BlackRock MuniYield Michigan Insured Fnd (MIY)	0.3	$7.8M		665k	11.74	View chart
Spectrum Brands Note 3.375% 6/0 (Principal)	0.3	$7.5M	-3%	7.9M	0.95	View chart
Blackrock Muniyield Fund (MYD)	0.3	$7.3M	-2%	697k	10.49	View chart
Live Nation Entertainment In Note 3.125% 1/1 (Principal)	0.2	$7.0M		4.8M	1.45	View chart
Expedia Group Note 2/1 (Principal)	0.2	$6.9M		6.1M	1.12	View chart
Cloudflare Note 8/1 (Principal)	0.2	$6.7M		5.7M	1.17	View chart
Osi Systems Note 2.250% 8/0 (Principal)	0.2	$6.7M	-86%	4.5M	1.48	View chart
Conmed Corp Note 2.250% 6/1 (Principal)	0.2	$6.7M	-54%	7.0M	0.96	View chart
Warner Bros Discovery Com Ser A (WBD)	0.2	$6.5M	-43%	226k	28.82	View chart
Nuveen Ins Ny Tx Fr Adv Mun (NRK)	0.2	$6.5M	-19%	641k	10.09	View chart
Wec Energy Group Note 4.375% 6/0 (Principal)	0.2	$6.2M	-3%	5.3M	1.17	View chart
Spdr Gold Tr Gold Shs (GLD)	0.2	$6.1M		15k	396.31	View chart
Southern Note 4.500% 6/1 (Principal)	0.2	$6.0M	-2%	5.6M	1.07	View chart
Halozyme Therapeutics Note 0.250% 3/0 (Principal)	0.2	$5.6M	-89%	5.2M	1.08	View chart
Dropbox Note 3/0 (Principal)	0.2	$5.6M		5.6M	0.99	View chart
Vail Resorts Note 1/0 (Principal)	0.2	$5.4M	-6%	5.4M	1.00	View chart
BlackRock Insured Municipal Income Trust (BYM)	0.2	$5.2M		480k	10.94	View chart
Nutanix Note 0.250%10/0 (Principal)	0.2	$5.1M	-88%	4.5M	1.12	View chart
Bentley Sys Note 0.125% 1/1 (Principal)	0.2	$4.3M	-6%	4.3M	1.00	View chart
Integer Hldgs Corp Note 2.125% 2/1 (Principal)	0.1	$4.2M	-5%	3.7M	1.13	View chart
Oil Sts Intl Note 4.750% 4/0 (Principal)	0.1	$4.2M	-80%	4.1M	1.00	View chart
Abrdn Natl Mun Income Sh Ben Int (VFL)	0.1	$4.1M		402k	10.27	View chart
Nuveen Municipal Credit Com Sh Ben Int (NZF)	0.1	$4.1M	-76%	325k	12.58	View chart
Blackrock Muniyield Quality Fund (MQY)	0.1	$4.0M		358k	11.30	View chart
BlackRock Municipal Income Trust II (BLE)	0.1	$3.8M		364k	10.44	View chart
Ionis Pharmaceuticals Note 4/0 (Principal)	0.1	$3.8M		2.8M	1.37	View chart
Invesco Van Kampen Trust For Inv Grd Mun (VGM)	0.1	$3.2M	-16%	309k	10.37	View chart
Invesco Van Kampen Municipal Trust (VKQ)	0.1	$3.1M		325k	9.65	View chart
Eaton Vance Municipal Bond Fund (EIM)	0.1	$3.1M		319k	9.73	View chart
Nuveen PA Investnt Quality Municipal (NQP)	0.1	$2.7M		229k	11.89	View chart
Blackrock N Y Mun Income Tru Sh Ben Int (BNY)	0.1	$2.2M		219k	10.14	View chart
Invesco Van Kampen Muni Opp Trust (VMO)	0.1	$2.0M	-33%	205k	9.57	View chart
Mfs Mun Income Tr Sh Ben Int (MFM)	0.1	$1.8M	-21%	340k	5.43	View chart
Spdr Series Trust State Street Spd (CWB)	0.0	$1.2M	NEW	14k	89.20	View chart
BlackRock Inv. Quality Munic. Trust (BKN)	0.0	$1.0M		92k	11.20	View chart
Invesco Advantage Mun Income Sh Ben Int (VKI)	0.0	$965k	-73%	106k	9.12	View chart
Dws Municipal Income Cf non-tax cef (KTF)	0.0	$841k	-29%	93k	9.09	View chart
Turning Pt Brands (TPB)	0.0	$737k		6.8k	108.40	View chart
Blackrock Munivest Fund II (MVT)	0.0	$710k		66k	10.81	View chart
Blackline Note 1.000% 6/0 (Principal)	0.0	$671k	-36%	635k	1.06	View chart
Ppl Cap Fdg Note 2.875% 3/1 (Principal)	0.0	$549k		500k	1.10	View chart
Duke Energy Corp Note 4.125% 4/1 (Principal)	0.0	$516k		500k	1.03	View chart
Ww Intl Com New (WW)	0.0	$420k		14k	29.21	View chart
New York Life Invts Active E Nyli Mackay Secu (SECR)	0.0	$287k	NEW	11k	25.73	View chart
Invesco Van Kampen Penn Vl MI Trust (VPV)	0.0	$151k		14k	10.46	View chart
Chegg Note 9/0 (Principal)	0.0	$40k		45k	0.89	View chart

Past Filings by Mackay Shields

SEC 13F filings are viewable for Mackay Shields going back to 2011

Mackay Shields 2025 Q4 filed Jan. 29, 2026
Mackay Shields 2025 Q3 filed Oct. 27, 2025
Mackay Shields 2025 Q2 filed July 24, 2025
Mackay Shields 2025 Q1 filed April 29, 2025
Mackay Shields 2024 Q4 filed Feb. 4, 2025
Mackay Shields 2024 Q3 filed Oct. 31, 2024
Mackay Shields 2024 Q2 filed Aug. 8, 2024
Mackay Shields 2024 Q1 filed May 3, 2024
Mackay Shields 2023 Q4 filed Feb. 2, 2024
Mackay Shields 2023 Q3 filed Oct. 25, 2023
Mackay Shields 2023 Q2 filed July 27, 2023
Mackay Shields 2023 Q1 filed April 27, 2023
Mackay Shields 2022 Q4 filed Jan. 31, 2023
Mackay Shields 2022 Q3 filed Nov. 2, 2022
Mackay Shields 2022 Q2 filed Aug. 3, 2022
Mackay Shields 2022 Q1 filed May 13, 2022

View all past filings

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