CSS LLC/IL

CIK: 0001103646Latest portfolio: $2.2B · Q4 2025

Holdings

870

Total Value

$2.2B

New Positions

236

Closed Positions

195

Top Holdings

View All 870 Holdings →

#	Stock	Shares	Value	% Portfolio	Change	Type
1	SATS 3.875 11/30/30ECHOSTAR CORP	37,825,753	$126.5M	5.62%	+23.4M
2	LITE 0.5 06/15/28LUMENTUM HLDGS INC	40,464,000	$115.0M	5.11%	+5.0M
3	SPYSPDR S&P 500 ETF TR	115,846	$79.0M	3.51%	-12,458	Put
4	JAZZ 2 06/15/26JAZZ INVESTMENTS I LTD	65,074,000	$75.4M	3.35%	+2.5M
5	IONS 0 04/01/26IONIS PHARMACEUTICALS INC	44,792,000	$61.5M	2.73%	-17,590,000
6	WDCWESTERN DIGITAL CORP	330,000	$56.8M	2.53%	NEW	Put
7	BTU 3.25 03/01/28PEABODY ENGR CORP	30,268,000	$50.9M	2.26%	+4.8M
8	LYV 3.125 01/15/29LIVE NATION ENTERTAINMENT IN	32,756,000	$47.6M	2.12%	-12,500,000
9	EQXCN 4.75 10/15/28EQUINOX GOLD CORP	18,936,000	$44.4M	1.97%	—
10	MIGASTRATEGY INC	282,400	$42.9M	1.91%	-10,800	Put
11	LITE 1.5 12/15/29LUMENTUM HLDGS INC	7,500,000	$39.9M	1.77%	-6,000,000
12	RIG 4.625 09/30/29 *TRANSOCEAN INC	27,333,000	$37.6M	1.67%	+4.5M
13	BBIO 2.25 02/01/29BRIDGEBIO PHARMA INC	26,500,000	$29.8M	1.33%	+25.0M
14	BAC 7.25 PERP LBANK AMERICA CORP	23,661	$29.5M	1.31%	+20K
15	GMEGAMESTOP CORP NEW	1,469,360	$29.5M	1.31%	-120,640	Put
16	GQ9SPDR GOLD TR	74,230	$29.4M	1.31%	+28K	Put
17	SOFISOFI TECHNOLOGIES INC	907,463	$23.8M	1.06%	+329K	Put
18	RSPINVESCO EXCHANGE TRADED FD T	109,842	$21.0M	0.94%	NEW	Call
19	GH 1.25 02/15/31GUARDANT HEALTH INC	11,000,000	$20.1M	0.89%	NEW
20	VOOVANGUARD INDEX FDS	31,650	$19.8M	0.88%	+4K
21	AALAMERICAN AIRLS GROUP INC	1,211,900	$18.6M	0.83%	-209,860	Put
22	CORZWCORE SCIENTIFIC INC NEW	2,031,951	$17.2M	0.76%	+1.0M
23	IAU*ISHARES GOLD TR	197,260	$16.0M	0.71%	+12K
24	MNKD 2.5 03/01/26MANNKIND CORP	13,980,000	$15.9M	0.71%	—
25	SNOW 0 10/01/27SNOWFLAKE INC	10,393,000	$15.4M	0.69%	-466,000

Quarterly Changes

New Positions

WDCNEW
$56.8M
RSPNEW
$21.0M
GH 1.25 02/15/31NEW
$20.1M
COLL 2.875 02/15/29NEW
$14.8M
BYND 7 10/15/30NEW
$13.1M
HAE 2.5 06/01/29NEW
$13.0M
PPL 2.875 03/15/28NEW
$12.6M
FLNC 2.25 06/15/30NEW
$12.3M
WOLF 2.5 06/15/31NEW
$10.1M
CELC 2.75 08/01/31NEW
$9.1M

Closed Positions

SNDKCLOSED
$37.0B
RSPCLOSED
$17.0B
WEC 4.375 06/01/27CLOSED
$16.8B
KELCLOSED
$14.2B
RIG 4 12/15/25 *CLOSED
$13.8B
XXCHNXXCLOSED
$12.8B
SHOPCN 0.125 11/01/25CLOSED
$11.9B
ETNBGBPCLOSED
$11.7B
BRKR 6.375 09/01/28CLOSED
$10.8B
FOUR 0 12/15/25CLOSED
$10.3B

Increased Positions

Name	Shares	Change
BBIO 2.25 02/01/29	26.5M	+25.0M
SATS 3.875 11/30/30	37.8M	+23.4M
F 0 03/15/26	9.3M	+7.7M
SPB 3.375 06/01/29	8.8M	+6.2M
SMCI 3.5 03/01/29	9.5M	+5.5M
LNT 3.875 03/15/26	7.6M	+5.2M
LITE 0.5 06/15/28	40.5M	+5.0M
BTU 3.25 03/01/28	30.3M	+4.8M
RIG 4.625 09/30/29 *	27.3M	+4.5M
LYFT 0.625 03/01/29	7.0M	+4.5M

Decreased Positions

Name	Shares	Change
IONS 0 04/01/26	44.8M	-17590000
LRN 1.125 09/01/27	10.3M	-16974000
LYV 3.125 01/15/29	32.8M	-12500000
EVH 4.5 08/15/31	1.0M	-5475000
PMT 8.5 06/01/29	2.5M	-4150000
SEDG 2.25 07/01/29	3.7M	-3700000
ENOV 3.875 10/15/28	5.0M	-3300000
COIN 0.25 04/01/30	2.5M	-3123000
MSTR 0.875 03/15/31	5.0M	-3000000
SIRI 3.75 03/15/28	200K	-2300000

Sector Breakdown

UnknownNaN% ($InfinityT)

Financial ServicesNaN% ($InfinityT)

TechnologyNaN% ($InfinityT)

Healthcare0.0% ($3.2432999244322267e+174T)

Industrials0.0% ($1.857846752869145e+174T)

Consumer Cyclical0.0% ($2.9503117677096573e+172T)

Communication Services0.0% ($8.74134032390151e+81T)

Energy0.0% ($2.1302006181613102e+79T)

Consumer Defensive0.0% ($1.4951433130712812e+60T)

Real Estate0.0% ($1.8561302106254354e+58T)

Utilities0.0% ($3.129284415231378e+46T)

Basic Materials0.0% ($2.814271613001288e+42T)

Filing History

Quarter	Filing Date	Portfolio Value	Holdings
Q4 2025	Feb 17, 2026	$2.2B	999
Q3 2025	Nov 13, 2025	$2.2T	985
Q2 2025	Aug 14, 2025	$2.1T	953
Q1 2025	May 15, 2025	$1.8T	909
Q4 2024	Feb 18, 2025	$2.3T	955
Q3 2024	Nov 14, 2024	$2185.8T	820
Q2 2024	Aug 14, 2024	$1955.5T	875
Q1 2024	May 15, 2024	$1732.2T	806
Q4 2023	Feb 14, 2024	$1730.3T	792
Q3 2023	Nov 14, 2023	$1524.3T	808
Q2 2023	Aug 14, 2023	$1616.0T	891
Q1 2023	May 15, 2023	$1515.0T	724
Q4 2022	Feb 14, 2023	$1766.8T	925
Q3 2022	Nov 14, 2022	$2.1T	1,046
Q2 2022	Aug 15, 2022	$2.5T	1,092
Q1 2022	May 16, 2022	$2.8T	1,146
Q4 2021	Feb 14, 2022	$2.8T	1,225
Q3 2021	Nov 15, 2021	$2.4T	1,166
Q2 2021	Aug 16, 2021	$2.4T	1,057
Q1 2021	May 17, 2021	$2.4T	907
Q4 2020	Feb 16, 2021	$2.6T	804
Q3 2020	Nov 16, 2020	$2.1T	791
Q2 2020	Aug 14, 2020	$1.8T	646
Q1 2020	May 15, 2020	$1.3T	604
Q4 2019	Feb 14, 2020	$1.8T	646
Q3 2019	Nov 14, 2019	$1.6T	599
Q2 2019	Aug 14, 2019	$1.7T	1,320
Q1 2019	May 15, 2019	$1.7T	526
Q4 2018	Feb 14, 2019	$1.5T	530
Q3 2018	Nov 14, 2018	$2.3T	543
Q2 2018	Aug 14, 2018	$2.1T	530
Q1 2018	May 15, 2018	$2.0T	520
Q4 2017	Feb 14, 2018	$2.0T	605
Q3 2017	Nov 14, 2017	$2.0T	616
Q2 2017	Aug 14, 2017	$2.1T	633
Q1 2017	May 15, 2017	$1.7T	627
Q4 2016	Feb 14, 2017	$1.8T	699
Q3 2016	Nov 14, 2016	$2.1T	727
Q2 2016	Aug 15, 2016	$1.5T	698
Q1 2016	May 16, 2016	$1.6T	662

Fund Information

CIK0001103646

Most Recent FilingFeb 17, 2026

Number of Filings40

View on SEC EDGAR →

CSS LLC/IL is an institutional investment manager that files 13F reports with the SEC. As of the Q4 2025 filing, the fund reported a portfolio valued at $2.2B across 870 holdings. The largest position is ECHOSTAR CORP (SATS 3.875 11/30/30), representing 5.6% of the portfolio. Compared to the previous quarter, the fund opened 312 new positions and closed 269 positions. 13F filings are required quarterly disclosures that provide transparency into the holdings of institutional investment managers with at least $100 million in qualifying assets.