13F Filings History of CSS LLC/IL

Latest 13F report
Q3 2025 - 13 Nov 2025
Value $
$1,679,703,402
Signature - Title
Mitchel Bialek - CCO
Location
Chicago, IL
Summary
This page shows a list of all the recent 13F filings made by CSS LLC/IL. Form 13F is required to be filed within 45 days of the end of a calendar quarter. CSS LLC/IL reported 691 stock holdings with total value $1,679,703,402 as of Q3 2025. Top holdings included STRIDE INC, IONIS PHARMACEUTICALS INC, LIVE NATION ENTERTAINMENT IN, JAZZ INVESTMENTS I LTD, and LUMENTUM HLDGS INC.

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Holdings Value
Quarter Holdings Value $ Bought Sold Net Top Holdings Form Type Filing Time
Q3 2025 691 $1,679,703,402 +$671,118,926 -$658,712,756 +$12,406,170 STRIDE INC, IONIS PHARMACEUTICALS INC, LIVE NATION ENTERTAINMENT IN, JAZZ INVESTMENTS I LTD, LUMENTUM HLDGS INC 13F-HR 13 Nov 2025, 12:00
Q2 2025 673 $1,580,351,072 +$662,840,349 -$593,638,540 +$69,201,809 STRIDE INC, IONIS PHARMACEUTICALS INC, JAZZ INVESTMENTS I LTD, SHIFT4 PMTS INC, SEAGATE HDD CAYMAN 13F-HR 14 Aug 2025, 15:44
Q1 2025 630 $1,433,875,508 +$407,850,142 -$608,256,838 -$200,406,696 AMERICAN AIRLINES GROUP INC, STRIDE INC, INSMED INC, JAZZ INVESTMENTS I LTD, IONIS PHARMACEUTICALS INC 13F-HR 15 May 2025, 15:55
Q4 2024 639 $1,678,724,402 +$556,662,886 -$641,399,885 -$84,736,999 AXON ENTERPRISE INC, AMERICAN AIRLINES GROUP INC, STRIDE INC, GTLSPRB, PEABODY ENGR CORP 13F-HR 14 Feb 2025, 17:58
Q3 2024 596 $1,718,577,821 +$700,249,234 -$390,048,877 +$310,200,357 AXON ENTERPRISE INC, CCL, AMERICAN AIRLINES GROUP INC, MACOM TECH SOLUTIONS HLDGS I, STRIDE INC 13F-HR 14 Nov 2024, 16:06
Q2 2024 571 $1,357,520,698 +$391,060,772 -$282,792,748 +$108,268,024 ROYAL CARIBBEAN GROUP, AMERICAN AIRLINES GROUP INC, MACOM TECH SOLUTIONS HLDGS I, AXON ENTERPRISE INC, PEABODY ENGR CORP 13F-HR 14 Aug 2024, 13:54
Q1 2024 566 $1,232,643,719 +$346,062,431 -$436,711,984 -$90,649,553 ROYAL CARIBBEAN GROUP, AMERICAN AIRLINES GROUP INC, MACOM TECH SOLUTIONS HLDGS I, PEABODY ENGR CORP, IONIS PHARMACEUTICALS INC 13F-HR 15 May 2024, 14:46
Q4 2023 538 $1,148,435,558 +$358,907,150 -$325,113,103 +$33,794,047 NE, AMERICAN AIRLINES GROUP INC, MACOM TECH SOLUTIONS HLDGS I, PEABODY ENGR CORP, IONIS PHARMACEUTICALS INC 13F-HR 14 Feb 2024, 12:56
Q3 2023 567 $1,200,246,101 +$395,578,351 -$481,351,174 -$85,772,823 ROYAL CARIBBEAN GROUP, NE, AMERICAN AIRLINES GROUP INC, CARNIVAL CORP, PEABODY ENGR CORP 13F-HR 14 Nov 2023, 14:06
Q2 2023 595 $1,297,890,202 +$386,522,925 -$459,969,944 -$73,447,019 DEXCOM INC, NE, AMERICAN AIRLINES GROUP INC, CARNIVAL CORP, PCGU 13F-HR 14 Aug 2023, 15:00
Q1 2023 564 $1,316,899,333 +$416,209,805 -$643,637,381 -$227,427,576 DEXCOM INC, PCGU, NE, CARNIVAL CORP, MARRIOTT VACATIONS WORLDWIDE 13F-HR 15 May 2023, 15:16
Q4 2022 698 $1,532,273,172 +$475,159,223 -$761,687,779 -$286,528,556 DEXCOM INC, PCGU, CHK, ATLAS AIR WORLDWIDE HLDGS IN, NE 13F-HR 14 Feb 2023, 14:51
Q3 2022 752 $1,723,998,000 +$504,821,920 -$877,052,297 -$372,230,377 ANTERO RESOURCES CORP, DEXCOM INC, GFLU, ATLAS AIR WORLDWIDE HLDGS IN, PCGU 13F-HR 14 Nov 2022, 16:21
Q2 2022 828 $2,073,934,188 +$630,080,794 -$674,152,709 -$44,071,915 AVGOP, ANTERO RESOURCES CORP, DEXCOM INC, GFLU, PCGU 13F-HR 15 Aug 2022, 14:13
Q1 2022 888 $2,373,587,000 +$844,967,093 -$717,979,602 +$126,987,491 AVGOP, DEXCOM INC, ANTERO RESOURCES CORP, GFLU, PCGU 13F-HR 16 May 2022, 14:50
Q4 2021 980 $2,254,212,000 +$964,737,811 -$600,467,122 +$364,270,689 AVGOP, DEXCOM INC, ANTERO RESOURCES CORP, WAYFAIR INC, NEEPRO 13F-HR 14 Feb 2022, 13:04
Q3 2021 932 $1,876,156,000 +$615,553,357 -$616,005,409 -$452,052 DEXCOM INC, WAYFAIR INC, NEEPRO, ANTERO RESOURCES CORP, CHEGG INC 13F-HR 15 Nov 2021, 15:27
Q2 2021 834 $1,850,015,000 +$641,167,747 -$653,961,853 -$12,794,106 DEXCOM INC, WAYFAIR INC, CHEGG INC, GFLU, NEEPRO 13F-HR 16 Aug 2021, 16:01
Q1 2021 704 $1,855,138,000 +$941,280,179 -$818,775,885 +$122,504,294 WAYFAIR INC, DEXCOM INC, AAL, CFXA, GFLU 13F-HR 17 May 2021, 13:58
Q4 2020 561 $1,657,966,000 +$807,145,236 -$645,876,279 +$161,268,957 MONGODB INC, DEXCOM INC, WAYFAIR INC, DD, PCGU 13F-HR 16 Feb 2021, 14:01
Q3 2020 510 $1,334,659,000 +$611,966,113 -$527,847,089 +$84,119,024 DHRPRA, MONGODB INC, ZILLOW GROUP INC, WAYFAIR INC, DEXCOM INC 13F-HR 16 Nov 2020, 13:57
Q2 2020 400 $1,194,293,000 +$602,580,908 -$552,378,196 +$50,202,712 CCIPRA, MONGODB INC, WAYFAIR INC, AAL, CAESARS ENTMT CORP 13F-HR 14 Aug 2020, 14:38
Q1 2020 405 $968,801,000 +$436,601,968 -$521,446,925 -$84,844,957 BDXA, CAESARS ENTMT CORP, AAL, MONGODB INC, SOLARCITY CORP 13F-HR 15 May 2020, 15:09
Q4 2019 443 $1,390,777,000 +$446,229,121 -$516,972,926 -$70,743,805 ZIONW, CAESARS ENTMT CORP, AAL, MEDICINES CO, DEXCOM INC 13F-HR 14 Feb 2020, 14:10
Q3 2019 453 $1,342,499,000 +$405,826,677 -$482,435,488 -$76,608,811 CAESARS ENTMT CORP, AAL, DTV, ZIONW, COUPA SOFTWARE INC 13F-HR 14 Nov 2019, 15:39
Q2 2019 678 $1,542,516,000 +$561,498,399 -$544,011,088 +$17,487,311 AABA, AAL, CAESARS ENTMT CORP, ARRAY BIOPHARMA INC, ZIONW 13F-HR 14 Aug 2019, 14:58
Q1 2019 400 $1,459,656,000 +$520,314,307 -$397,050,886 +$123,263,421 AAL, AABA, COTY, ZIONW, INTEGRATED DEVICE TECHNOLOGY 13F-HR 15 May 2019, 14:58
Q4 2018 402 $1,214,035,000 +$374,457,703 -$748,954,286 -$374,496,583 AAL, AABA, MOLINA HEALTHCARE INC, ZIONW, INTEGRATED DEVICE TECHNOLOGY 13F-HR 14 Feb 2019, 13:47
Q3 2018 408 $1,907,350,000 +$712,395,815 -$598,377,164 +$114,018,651 FTV, AAL, SQUARE INC, MOLINA HEALTHCARE INC, ZIONW 13F-HR 14 Nov 2018, 15:01
Q2 2018 412 $1,751,237,000 +$484,003,404 -$540,770,013 -$56,766,609 AABA, AAL, ZIONW, STI, MOLINA HEALTHCARE INC 13F-HR 14 Aug 2018, 15:15
Q1 2018 413 $1,813,250,000 +$553,140,145 -$422,273,961 +$130,866,184 AABA, AAL, ZIONW, STI, MICRON TECHNOLOGY INC 13F-HR 15 May 2018, 14:33
Q4 2017 440 $1,654,589,000 +$486,471,091 -$491,583,190 -$5,112,099 AAL, AABA, ZIONW, STIWSB, MICRON TECHNOLOGY INC 13F-HR 14 Feb 2018, 11:25
Q3 2017 455 $1,627,147,000 +$383,865,079 -$387,873,484 -$4,008,405 AAL, AABA, TESARO INC, ZIONW, STIWSB 13F-HR 14 Nov 2017, 12:26
Q2 2017 459 $1,598,179,000 +$494,408,980 -$408,841,009 +$85,567,971 AAL, TESARO INC, AABA, ZIONW, ANTHEM INC 13F-HR 14 Aug 2017, 15:38
Q1 2017 471 $1,457,781,000 +$438,913,994 -$464,989,084 -$26,075,090 AAL, TESARO INC, YHOO, ZIONW, STIWSB 13F-HR 15 May 2017, 14:29
Q4 2016 497 $1,445,871,000 +$474,013,233 -$678,186,276 -$204,173,043 AAL, TESARO INC, ZIONW, YHOO, STIWSB 13F-HR 14 Feb 2017, 15:29
Q3 2016 509 $1,512,911,000 +$673,835,785 -$482,950,785 +$190,885,000 PG, AAL, TESARO INC, YHOO, NUVASIVE INC 13F-HR 14 Nov 2016, 13:56
Q2 2016 485 $1,230,179,000 +$424,705,208 -$589,023,050 -$164,317,842 AAL, CCIPRA, NVIDIA CORP, EXELIXIS INC, TESARO INC 13F-HR 15 Aug 2016, 15:08
Q1 2016 463 $1,379,548,000 +$528,226,929 -$423,343,040 +$104,883,889 AAL, JARDEN CORP, YHOO, HIGWS, JARDEN CORP 13F-HR 16 May 2016, 14:31
Q4 2015 476 $1,330,030,000 +$433,291,024 -$428,888,817 +$4,402,207 AAL, TYFDL, SANDISK CORP, JARDEN CORP, HIGWS 13F-HR 16 Feb 2016, 13:51
Q3 2015 547 $1,287,571,000 +$443,148,969 -$636,197,282 -$193,048,313 AAL, DOW, GE, MEDICINES CO, HIGWS 13F-HR 16 Nov 2015, 13:39
Q2 2015 552 $1,627,130,000 +$594,479,212 -$512,746,295 +$81,732,917 AAL, OMNICARE INC, DHR, OMNICARE INC, GE 13F-HR 14 Aug 2015, 13:57
Q1 2015 525 $1,558,354,000 +$529,302,845 -$446,978,080 +$82,324,765 AAL, NEEPRO, HIGWS, MEDIVATION INC, OCRPRB 13F-HR 15 May 2015, 12:14
Q4 2014 577 $1,467,467,317 +$426,585,634 -$498,760,917 -$72,175,283 AAL, HIGWS, CUBIST PHARMACEUTICALS INC, OCRPRB, MICRON TECHNOLOGY INC 13F-HR 17 Feb 2015, 14:19
Q3 2014 561 $1,480,174,000 +$454,342,656 -$466,498,686 -$12,156,030 AAL, MICRON TECHNOLOGY INC, AUXILIUM PHARMACEUTICALS INC, MLU, EQUINIX INC 13F-HR 14 Nov 2014, 12:24
Q2 2014 529 $1,592,651,000 +$653,380,588 -$535,741,105 +$117,639,483 AAL, CBS, WY, OCRPRB, CEMEX SAB DE CV 13F-HR 14 Aug 2014, 12:24
Q1 2014 484 $1,425,731,000 +$597,155,484 -$505,061,137 +$92,094,347 AAL, GM, GENCORP INC, GT ADVANCED TECHNOLOGIES INC, OCRPRB 13F-HR 15 May 2014, 10:53
Q4 2013 490 $1,328,449,000 $0 $0 $0 GMWSB, GMWSA, VIROPHARMA INC, GENCORP INC, OCRPRB 13F-HR 14 Feb 2014, 10:00