Filed: 8/14/2026ACC: 0001103646-26-000012
📋 What this filing means
CSS LLC/IL filed this quarterly 13F‑HR report disclosing 850 equity positions with a total reported market value of $2.57B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
850
Positions
$2.57B
Total AUM (reported)
574.22M
Total Shares
Allocation by class
COM$433.73M16.9%
NOTE 0.500% 6/1$245.59M9.6%
7.625 MAND CONV$149.32M5.8%
NOTE 3.875%11/3$137.44M5.4%
SER A MAND CNV$82.81M3.2%
CL A$75.12M2.9%
7.25%CNV PFD L$63.28M2.5%
Portfolio Concentration
Top 3$532.35M20.7%
4–10$366.26M14.3%
11–25$364.08M14.2%
Rest$1.31B50.8%
Top 3 weight
20.7%
Top 10 weight
35.0%
Voting Authority Distribution
Total shares with voting rights: 574.22M
Sole
Full voting authority
574.22M
shares
% of voting shares100.0%
Shared
Joint voting authority
0.00
shares
% of voting shares0.0%
None
No voting authority
0.00
shares
% of voting shares0.0%
Investment Discretion (by position count)
Sole850
Shared0
Other0
Dominant voting typeSole · 100.0% of voting shares
Institutional Holdings850
Rows:
LUMENTUM HLDGS INC
SOLEShares37.55M
TypePRN
Market value$245.59M
9.56%
Sole
37.55M
Shared
0.00
None
0.00
HEWLETT PACKARD ENTERPRISE C
SOLEShares1.28M
TypeSH
Market value$149.32M
5.81%
Sole
1.28M
Shared
0.00
None
0.00
ECHOSTAR CORP
SOLEShares43.93M
TypePRN
Market value$137.44M
5.35%
Sole
43.93M
Shared
0.00
None
0.00
APOLLO GLOBAL MGMT INC
SOLEShares1.36M
TypeSH
Market value$82.81M
3.22%
Sole
1.36M
Shared
0.00
None
0.00
BANK OF AMER CORP
SOLEShares50.37K
TypeSH
Market value$63.28M
2.46%
Sole
50.37K
Shared
0.00
None
0.00
WOLFSPEED INC
SOLEShares13.77M
TypePRN
Market value$54.19M
2.11%
Sole
13.77M
Shared
0.00
None
0.00
SUPER MICRO COMPUTER INC
SOLEShares878.23K
TypeSH
Market value$45.26M
1.76%
Sole
878.23K
Shared
0.00
None
0.00
CORE SCIENTIFIC INC NEW
SOLEShares2.35M
TypeSH
Market value$44.21M
1.72%
Sole
2.35M
Shared
0.00
None
0.00
MICROCHIP TECHNOLOGY INC.
SOLEShares558.55K
TypeSH
Market value$42.96M
1.67%
Sole
558.55K
Shared
0.00
None
0.00
CLOUDFLARE INC
SOLEShares26.11M
TypePRN
Market value$33.55M
1.31%
Sole
26.11M
Shared
0.00
None
0.00
AKAMAI TECHNOLOGIES INC
SOLEShares24.80M
TypePRN
Market value$29.57M
1.15%
Sole
24.80M
Shared
0.00
None
0.00
STATE STR SPDR S&P 500 ETF T
SOLEShares38.77K
TypeSH
Market value$28.95M
1.13%
Sole
38.77K
Shared
0.00
None
0.00
GAMESTOP CORP
SOLEShares1.29M
TypeSH
Market value$28.53M
1.11%
Sole
1.29M
Shared
0.00
None
0.00
ALBEMARLE CORP
SOLEShares470.58K
TypeSH
Market value$26.08M
1.02%
Sole
470.58K
Shared
0.00
None
0.00
CENTERPOINT ENERGY INC
SOLEShares21M
TypePRN
Market value$25.29M
0.98%
Sole
21M
Shared
0.00
None
0.00
EQUINOX GOLD CORP
SOLEShares14.89M
TypePRN
Market value$25.07M
0.98%
Sole
14.89M
Shared
0.00
None
0.00
PENUMBRA INC
SOLEShares75.74K
TypeSH
Market value$23.91M
0.93%
Sole
75.74K
Shared
0.00
None
0.00
BOEING CO
SOLEShares349.35K
TypeSH
Market value$23.63M
0.92%
Sole
349.35K
Shared
0.00
None
0.00
TRANSOCEAN INC
SOLEShares15.17M
TypePRN
Market value$23.49M
0.91%
Sole
15.17M
Shared
0.00
None
0.00
EL PASO ENERGY CAP TR I
SOLEShares446.46K
TypeSH
Market value$22.59M
0.88%
Sole
446.46K
Shared
0.00
None
0.00
INVESCO EXCHANGE TRADED FD T
SOLEShares105.27K
TypeSH
Market value$22.40M
0.87%
Sole
105.27K
Shared
0.00
None
0.00
VANGUARD INDEX FDS
SOLEShares32.21K
TypeSH
Market value$22.12M
0.86%
Sole
32.21K
Shared
0.00
None
0.00
KINDER MORGAN INC DEL
SOLEShares678.90K
TypeSH
Market value$21.70M
0.85%
Sole
678.90K
Shared
0.00
None
0.00
IREN LIMITED
SOLEShares6M
TypePRN
Market value$21.20M
0.83%
Sole
6M
Shared
0.00
None
0.00
DIGITALOCEAN HLDGS INC
SOLEShares17.24M
TypePRN
Market value$19.53M
0.76%
Sole
17.24M
Shared
0.00
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
LUMENTUM HLDGS INCSOLE | NOTE 0.500% 6/1 | 37.55M | PRN | $245.59M 9.56% | 37.55M | 0.00 | 0.00 |
HEWLETT PACKARD ENTERPRISE CSOLE | 7.625 MAND CONV | 1.28M | SH | $149.32M 5.81% | 1.28M | 0.00 | 0.00 |
ECHOSTAR CORPSOLE | NOTE 3.875%11/3 | 43.93M | PRN | $137.44M 5.35% | 43.93M | 0.00 | 0.00 |
APOLLO GLOBAL MGMT INCSOLE | SER A MAND CNV | 1.36M | SH | $82.81M 3.22% | 1.36M | 0.00 | 0.00 |
BANK OF AMER CORPSOLE | 7.25%CNV PFD L | 50.37K | SH | $63.28M 2.46% | 50.37K | 0.00 | 0.00 |
WOLFSPEED INCSOLE | NOTE 2.500% 6/1 | 13.77M | PRN | $54.19M 2.11% | 13.77M | 0.00 | 0.00 |
SUPER MICRO COMPUTER INCSOLE | 7 DEP CM SR A WI | 878.23K | SH | $45.26M 1.76% | 878.23K | 0.00 | 0.00 |
CORE SCIENTIFIC INC NEWSOLE | *W EXP 01/23/202 | 2.35M | SH | $44.21M 1.72% | 2.35M | 0.00 | 0.00 |
MICROCHIP TECHNOLOGY INC.SOLE | DEP SHS REPSTG | 558.55K | SH | $42.96M 1.67% | 558.55K | 0.00 | 0.00 |
CLOUDFLARE INCSOLE | NOTE 8/1 | 26.11M | PRN | $33.55M 1.31% | 26.11M | 0.00 | 0.00 |
AKAMAI TECHNOLOGIES INCSOLE | NOTE 1.125% 2/1 | 24.80M | PRN | $29.57M 1.15% | 24.80M | 0.00 | 0.00 |
STATE STR SPDR S&P 500 ETF TSOLE | TR UNIT | 38.77K | SH | $28.95M 1.13% | 38.77K | 0.00 | 0.00 |
GAMESTOP CORPSOLE | CL A | 1.29M | SH | $28.53M 1.11% | 1.29M | 0.00 | 0.00 |
ALBEMARLE CORPSOLE | 7.25% DEP SHS A | 470.58K | SH | $26.08M 1.02% | 470.58K | 0.00 | 0.00 |
CENTERPOINT ENERGY INCSOLE | NOTE 4.250% 8/1 | 21M | PRN | $25.29M 0.98% | 21M | 0.00 | 0.00 |
EQUINOX GOLD CORPSOLE | NOTE 4.750%10/1 | 14.89M | PRN | $25.07M 0.98% | 14.89M | 0.00 | 0.00 |
PENUMBRA INCSOLE | COM | 75.74K | SH | $23.91M 0.93% | 75.74K | 0.00 | 0.00 |
BOEING COSOLE | DEP CONV PFD A | 349.35K | SH | $23.63M 0.92% | 349.35K | 0.00 | 0.00 |
TRANSOCEAN INCSOLE | DEB 4.625% 9/3 | 15.17M | PRN | $23.49M 0.91% | 15.17M | 0.00 | 0.00 |
EL PASO ENERGY CAP TR ISOLE | PFD CV TR SEC 28 | 446.46K | SH | $22.59M 0.88% | 446.46K | 0.00 | 0.00 |
INVESCO EXCHANGE TRADED FD TSOLE | S&P500 EQL WGT | 105.27K | SH | $22.40M 0.87% | 105.27K | 0.00 | 0.00 |
VANGUARD INDEX FDSSOLE | S&P 500 ETF SHS | 32.21K | SH | $22.12M 0.86% | 32.21K | 0.00 | 0.00 |
KINDER MORGAN INC DELSOLE | COM | 678.90K | SH | $21.70M 0.85% | 678.90K | 0.00 | 0.00 |
IREN LIMITEDSOLE | NOTE 3.500%12/1 | 6M | PRN | $21.20M 0.83% | 6M | 0.00 | 0.00 |
DIGITALOCEAN HLDGS INCSOLE | NOTE 12/0 | 17.24M | PRN | $19.53M 0.76% | 17.24M | 0.00 | 0.00 |
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