MACKAY SHIELDS LLC
CIK 61227 · Holdings on Dec 31, 2025 · First reported Jan 29, 2026
Top ten holdings
Q4 2025- 958102AT23.03%
- LITE2.99%
- 007973AE02.56%
- 604749AB72.31%
- 516544AB92.28%
- 82846H5042.28%
- 88162GAB92.27%
- BA2.02%
- 12685JAG01.98%
- UBER1.94%
Share classes counted separately23.66%
Portfolio value by quarter
What changed this quarter?
Within preview · weight change- LITEWeight increased · +1.55 pp1.44% → 2.99%Shares -408.00K (-1.34%)
- 81180WBL4Weight decreased · -0.95 pp2.51% → 1.56%Shares -12.28M (-48.01%)
- 958102AT2Weight increased · +0.93 pp2.10% → 3.03%Shares -346.00K (-1.80%)
Weight = security value ÷ total reported holdings value. Changes are in percentage points; price moves also affect weights, so they are not trade sizes.
Top 10 holdings 30
USD · B = billion · M = million; expand a row for exact values| # | Security | Value | Weight | Quantity | Weight / quantity change | Activity | |
|---|---|---|---|---|---|---|---|
| 01 | 958102AT2WESTERN DIGITAL CORPNOTE 3.000%11/1 View history and evidence | $86.59M | 3.03% | 18.88M principal (USD) | 2.10% → 3.03%+0.93 pp -346.00K (-1.80%) | Reduced | ↗▾ |
| 02 | LITELUMENTUM HOLDINGS INCNOTE 0.500% 6/1 View history and evidence | $85.34M | 2.99% | 30.04M principal (USD) | 1.44% → 2.99%+1.55 pp -408.00K (-1.34%) | Reduced | ↗▾ |
| 03 | 007973AE0ADVANCED ENERGY INDNOTE 2.500% 9/1 View history and evidence | $73.28M | 2.56% | 44.64M principal (USD) | 2.13% → 2.56%+0.43 pp -536.00K (-1.19%) | Reduced | ↗▾ |
| 04 | 604749AB7MIRUM PHARMACEUTICALSNOTE 4.000% 5/0 View history and evidence | $65.98M | 2.31% | 25.53M principal (USD) | 2.15% → 2.31%+0.16 pp -687.00K (-2.62%) | Reduced | ↗▾ |
| 05 | 516544AB9LANTHEUS HOLDINGS INCNOTE 2.625%12/1 View history and evidence | $65.10M | 2.28% | 56.71M principal (USD) | 2.00% → 2.28%+0.28 pp +1.04M (+1.87%) | Added | ↗▾ |
| 06 | 82846H504QXO INC5.50 DEP PFD View history and evidence | $65.02M | 2.28% | 1.17M shares | 2.23% → 2.28%+0.05 pp -14.93K (-1.26%) | Reduced | ↗▾ |
| 07 | 88162GAB9TETRA TECH INCDBCV 2.250% 8/1 View history and evidence | $64.82M | 2.27% | 59.62M principal (USD) | 2.16% → 2.27%+0.11 pp +1.02M (+1.75%) | Added | ↗▾ |
| 08 | BABOEING CO/THEDEP CONV PFD A View history and evidence | $57.66M | 2.02% | 830.10K shares | 1.99% → 2.02%+0.03 pp -11.88K (-1.41%) | Reduced | ↗▾ |
| 09 | 12685JAG0CABLE ONE INCNOTE 1.125% 3/1 View history and evidence | $56.65M | 1.98% | 69.40M principal (USD) | 1.96% → 1.98%+0.02 pp +1.98M (+2.93%) | Added | ↗▾ |
| 10 | UBERUBER TECHNOLOGIES INCNOTE 0.875%12/0 View history and evidence | $55.40M | 1.94% | 42.64M principal (USD) | 2.15% → 1.94%-0.21 pp -347.00K (-0.81%) | Reduced | ↗▾ |
Options overlay 0
No options reported this quarter.
Exited positions 14
| Security | Type | Shares out | Value out | Previous filing | This filing |
|---|---|---|---|---|---|
| LITE LUMENTUM HOLDINGS INC | Non-derivative | -9,060,000 | -$21.89M | SEC filing ↗ | SEC filing ↗ |
| XNEAX NUVEEN AMT-FR QLTY MUNI INC | Non-derivative | -1,801,320 | -$20.52M | SEC filing ↗ | SEC filing ↗ |
| NVG NUVEEN AMT-FR MUNI CRDT | Non-derivative | -1,165,469 | -$14.32M | SEC filing ↗ | SEC filing ↗ |
3 / 14 preview exits. Up to 30 exit records are previewed. Exit means absent from the current filing; execution date, price and proceeds are unknown.
Every number has a source.
CIK 61227 · Period 2025-12-31
Data loaded 2026-09-23 · First reported 2026-01-29
Amendments and versions
{
"amendments_merged": null,
"prior_versions": null,
"cover_table_value": 2857443441
}Research all 132 reported holdings.
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