CSS LLC
- SEC CIK
- 0001103646
- Latest filing
- Aug 14, 2026
Holdings changes from Q3 2023 to Q4 2023
Long positions only; new, added, reduced and sold out are based on share counts. Pick any two quarters this institution filed.
- New
- 129
- Est. +$196.7M
- Added
- 120
- Est. +$71.7M
- Reduced
- 149
- Est. −$59.7M
- Sold out
- 158
- Est. −$199.9M
Portfolio value went from $1.20B to $1.28B (+$81.8M (+6.8%)); positions from 567 to 538 (−29).
All Q4 2023 holdingsAll Q3 2023 holdings
In the shares, value and % of portfolio columns, the top figure is Q4 2023 and the gray one below is Q3 2023. For stocks that split between the two quarters, Q3 2023 shares are converted at the split ratio before comparing.
| Security | Action | Shares | Share change | Value | Est. bought or sold | % of portfolio | Weight change (pp) |
|---|---|---|---|---|---|---|---|
| Royal Caribbean Group780153BQ4 | –– | –– | – | $133.6M$108.8M | – | 10.4%9.1% | +1.35 |
| NENoble Corp plc | ReducedHistory | 1,575,7061,729,627 | −153,921−8.9% | $75.9M$87.6M | −$7.41M | 5.9%7.3% | −1.38 |
| American Airls Group Inc02376RAF9 | –– | –– | – | $59.7M$59.1M | – | 4.7%4.9% | −0.27 |
| Macom Tech Solutions Hldgs I55405YAB6 | –– | –– | – | $37.0M$25.6M | – | 2.9%2.1% | +0.75 |
| Peabody Engr Corp704551AD2 | –– | –– | – | $34.0M$35.8M | – | 2.7%3.0% | −0.33 |
| Ionis Pharmaceuticals Inc462222AD2 | –– | –– | – | $33.7M$27.1M | – | 2.6%2.3% | +0.37 |
| Splunk Inc848637AD6 | –– | –– | – | $28.1M$703.3K | – | 2.2%0.1% | +2.14 |
| NCL Corp Ltd62886HAX9 | –– | –– | – | $25.8M$10.3M | – | 2.0%0.9% | +1.16 |
| Marriott Vacations Worldwide Corp57164YAD9 | –– | –– | – | $22.8M$24.5M | – | 1.8%2.0% | −0.27 |
| Brookdale Sr Living Inc112463302 | Added– | 273,44519,308 | +254,137+1,316.2% | $22.1M$1.17M | +$20.6M | 1.7%0.1% | +1.63 |
| Green Plains Inc.393222AK0 | –– | –– | – | $21.1M$21.4M | – | 1.6%1.8% | −0.14 |
| MRTXMirati Therapeutics, Inc. | NewHistory | 343,8450 | +343,845 | $20.2M$0 | +$20.2M | 1.6%0.0% | +1.58 |
| RBC Bearings INC75524B203 | Added– | 147,94361,348 | +86,595+141.2% | $19.2M$6.77M | +$11.2M | 1.5%0.6% | +0.93 |
| Bentley Sys Inc08265TAB5 | –– | –– | – | $18.9M$11.6M | – | 1.5%1.0% | +0.51 |
| Mannkind Corp56400PAQ5 | –– | –– | – | $15.8M$22.1M | – | 1.2%1.8% | −0.61 |
| Neurocrine Biosciences Inc64125CAD1 | –– | –– | – | $15.4M$23.2M | – | 1.2%1.9% | −0.73 |
| Redwood Trust Inc758075AF2 | –– | –– | – | $15.4M$17.1M | – | 1.2%1.4% | −0.22 |
| CONMED Corp207410AH4 | –– | –– | – | $14.9M$14.4M | – | 1.2%1.2% | −0.04 |
| SPYSPDR S&P 500 ETF Trust | AddedHistory | 27,18418,266 | +8,918+48.8% | $12.9M$7.81M | +$4.24M | 1.0%0.7% | +0.36 |
| Ascendis Pharma A/S04351PAD3 | New– | –0 | – | $12.9M$0 | +$12.9M | 1.0%0.0% | +1.01 |
| Ares Capital Corp04010LAW3 | New– | –0 | – | $12.6M$0 | +$12.6M | 1.0%0.0% | +0.98 |
| Progress Software Corp743312AB6 | –– | –– | – | $11.9M$11.6M | – | 0.9%1.0% | −0.04 |
| Sarepta Therapeutics, Inc.803607AB6 | –– | –– | – | $11.6M$14.5M | – | 0.9%1.2% | −0.31 |
| Cytokinetics Inc23282WAC4 | New– | –0 | – | $11.4M$0 | +$11.4M | 0.9%0.0% | +0.89 |
| Greenbrier Cos Inc393657AM3 | –– | –– | – | $10.8M$9.52M | – | 0.8%0.8% | +0.05 |
| Starwood Ppty Tr Inc85571BBA2 | –– | –– | – | $10.2M$7.56M | – | 0.8%0.6% | +0.16 |
| PROS Holdings, Inc.74346YAG8 | –– | –– | – | $9.90M$15.5M | – | 0.8%1.3% | −0.52 |
| Dexcom Inc252131AK3 | New– | –0 | – | $9.15M$0 | +$9.15M | 0.7%0.0% | +0.71 |
| Helix Energy Solutions Grp I42330PAK3 | –– | –– | – | $9.01M$15.4M | – | 0.7%1.3% | −0.58 |
| Collegium Pharmaceutical, Inc19459JAA2 | –– | –– | – | $8.86M$7.36M | – | 0.7%0.6% | +0.08 |
| Imax Corp45245EAJ8 | –– | –– | – | $8.47M$8.89M | – | 0.7%0.7% | −0.08 |
| Halozyme Therapeutics, Inc.40637HAF6 | New– | –0 | – | $8.38M$0 | +$8.38M | 0.7%0.0% | +0.65 |
| STEWSRH Total Return Fund, Inc. | AddedHistory | 593,055587,493 | +5,562+0.9% | $8.23M$7.63M | +$77.1K | 0.6%0.6% | +0.01 |
| VRTXVertex Pharmaceuticals Inc | ReducedHistory | 18,70019,000 | −300−1.6% | $7.61M$6.61M | −$122.1K | 0.6%0.6% | +0.04 |
| Semtech Corp816850AF8 | New– | –0 | – | $7.47M$0 | +$7.47M | 0.6%0.0% | +0.58 |
| PEOAdams Natural Resources Fund, Inc. | ReducedHistory | 354,779395,024 | −40,245−10.2% | $7.32M$9.13M | −$830.3K | 0.6%0.8% | −0.19 |
| Transocean Ltd.893830BW8 | –– | –– | – | $7.27M$9.10M | – | 0.6%0.8% | −0.19 |
| Ironwood Pharmaceuticals Inc46333XAH1 | –– | –– | – | $7.07M$5.38M | – | 0.6%0.4% | +0.10 |
| INSMED Inc457669AB5 | –– | –– | – | $6.77M$5.05M | – | 0.5%0.4% | +0.11 |
| Cinemark Hldgs Inc17243VAB8 | –– | –– | – | $6.54M$15.2M | – | 0.5%1.3% | −0.76 |
| Varonis Sys Inc922280AB8 | –– | –– | – | $6.48M$5.86M | – | 0.5%0.5% | +0.02 |
| Plug Power Inc72919PAD5 | New– | –0 | – | $6.47M$0 | +$6.47M | 0.5%0.0% | +0.50 |
| SPE.PCSpecial Opportunities Fund, Inc. | AddedHistory | 282,834281,296 | +1,538+0.5% | $6.45M$6.39M | +$35.1K | 0.5%0.5% | −0.03 |
| Innoviva, Inc.45781MAD3 | –– | –– | – | $6.09M$3.71M | – | 0.5%0.3% | +0.17 |
| EPR.PCEpr Properties | NewHistory | 284,2900 | +284,290 | $6.04M$0 | +$6.04M | 0.5%0.0% | +0.47 |
| Callaway Golf Co131193AE4 | –– | –– | – | $5.93M$5.78M | – | 0.5%0.5% | −0.02 |
| HCI Group, Inc.40416EAF0 | –– | –– | – | $5.66M$1.88M | – | 0.4%0.2% | +0.28 |
| Dropbox, Inc.26210CAC8 | –– | –– | – | $5.28M$3.17M | – | 0.4%0.3% | +0.15 |
| NTRANatera, Inc. | –History | –– | – | $5.13M$1.32M | – | 0.4%0.1% | +0.29 |
| Viacomcbs Inc92556H305 | Added– | 264,24158,518 | +205,723+351.6% | $4.93M$1.04M | +$3.84M | 0.4%0.1% | +0.30 |
| MXEMexico Equity & Income Fund Inc | UnchangedHistory | 439,243439,243 | 00.0% | $4.92M$4.13M | $0 | 0.4%0.3% | +0.04 |
| BPBP PLC | ReducedHistory | 135,223156,223 | −21,000−13.4% | $4.79M$6.05M | −$743.4K | 0.4%0.5% | −0.13 |
| BridgeBio Pharma, Inc.10806XAB8 | –– | –– | – | $4.43M$2.08M | – | 0.3%0.2% | +0.17 |
| AELAmerican National Group Inc. | AddedHistory | 78,14522,516 | +55,629+247.1% | $4.36M$1.21M | +$3.10M | 0.3%0.1% | +0.24 |
| BridgeBio Pharma, Inc.10806XAD4 | –– | –– | – | $4.26M$3.73M | – | 0.3%0.3% | +0.02 |
| Arbor Realty Trust Inc038923BA5 | New– | –0 | – | $4.09M$0 | +$4.09M | 0.3%0.0% | +0.32 |
| Repligen Corp759916AC3 | New– | –0 | – | $3.94M$0 | +$3.94M | 0.3%0.0% | +0.31 |
| Vanguard S&P 500 ETF922908363 | New– | 9,0000 | +9,000 | $3.93M$0 | +$3.93M | 0.3%0.0% | +0.31 |
| Marathon Digital Holdings IN565788AB2 | –– | –– | – | $3.92M$1.44M | – | 0.3%0.1% | +0.19 |
| CEFSprott Physical Gold & Silver Trust | ReducedHistory | 202,771221,771 | −19,000−8.6% | $3.88M$3.84M | −$363.9K | 0.3%0.3% | −0.02 |
| Solaredge Technologies, Inc.83417MAD6 | –– | –– | – | $3.86M$2.28M | – | 0.3%0.2% | +0.11 |
| Post Hldgs Inc737446AT1 | New– | –0 | – | $3.54M$0 | +$3.54M | 0.3%0.0% | +0.28 |
| Dropbox, Inc.26210CAD6 | –– | –– | – | $3.51M$2.37M | – | 0.3%0.2% | +0.08 |
| Mitek Sys Inc606710AA9 | –– | –– | – | $3.50M$3.27M | – | 0.3%0.3% | 0.00 |
| Litman Gregory FDS Tr53700T827 | Reduced– | 133,864156,141 | −22,277−14.3% | $3.45M$4.51M | −$573.9K | 0.3%0.4% | −0.11 |
| Invesco Exchange Traded FD T46137V357 | New– | 21,7000 | +21,700 | $3.42M$0 | +$3.42M | 0.3%0.0% | +0.27 |
| Cree Inc225447AD3 | New– | –0 | – | $3.41M$0 | +$3.41M | 0.3%0.0% | +0.27 |
| Ormat Technologies, Inc.686688AB8 | New– | –0 | – | $3.34M$0 | +$3.34M | 0.3%0.0% | +0.26 |
| Bill Com Hldgs Inc090043AB6 | New– | –0 | – | $3.29M$0 | +$3.29M | 0.3%0.0% | +0.26 |
| CEMClearBridge MLP & Midstream Fund Inc. | AddedHistory | 81,77411,101 | +70,673+636.6% | $3.28M$391.1K | +$2.83M | 0.3%<0.1% | +0.22 |
| Veeco Instrs Inc Del922417AG5 | –– | –– | – | $3.27M$3.08M | – | 0.3%0.3% | 0.00 |
| Penn Natl Gaming Inc707569AU3 | New– | –0 | – | $3.25M$0 | +$3.25M | 0.3%0.0% | +0.25 |
| ACIAlbertsons Companies, Inc. | ReducedHistory | 136,157209,557 | −73,400−35.0% | $3.13M$4.77M | −$1.69M | 0.2%0.4% | −0.15 |
| SPESpecial Opportunities Fund, Inc. | ReducedHistory | 261,384269,601 | −8,217−3.0% | $3.10M$2.95M | −$97.5K | 0.2%0.2% | 0.00 |
| Wolfspeed, Inc.977852AD4 | New– | –0 | – | $3.03M$0 | +$3.03M | 0.2%0.0% | +0.24 |
| CTRClearBridge MLP & Midstream Total Return Fund Inc. | AddedHistory | 83,75412,963 | +70,791+546.1% | $3.03M$415.7K | +$2.56M | 0.2%<0.1% | +0.20 |
| Bloom Energy Corp093712AH0 | –– | –– | – | $2.98M$3.83M | – | 0.2%0.3% | −0.09 |
| MGP Ingredients Inc55303JAB2 | New– | –0 | – | $2.91M$0 | +$2.91M | 0.2%0.0% | +0.23 |
| American Centy ETF Tr025072877 | Added– | 31,50026,500 | +5,000+18.9% | $2.83M$2.07M | +$449.0K | 0.2%0.2% | +0.05 |
| BRWSaba Capital Income & Opportunities Fund | ReducedHistory | 365,930404,546 | −38,616−9.5% | $2.82M$3.11M | −$297.7K | 0.2%0.3% | −0.04 |
| Workiva Inc98139AAB1 | –– | –– | – | $2.75M$2.75M | – | 0.2%0.2% | −0.01 |
| Vail Resorts Inc91879QAN9 | –– | –– | – | $2.68M$3.53M | – | 0.2%0.3% | −0.08 |
| OVVOvintiv Inc. | AddedHistory | 60,84257,342 | +3,500+6.1% | $2.67M$2.73M | +$153.7K | 0.2%0.2% | −0.02 |
| SUSuncor Energy Inc | ReducedHistory | 82,94491,644 | −8,700−9.5% | $2.66M$3.15M | −$278.7K | 0.2%0.3% | −0.06 |
| JetBlue Airways Corp477143AP6 | New– | –0 | – | $2.63M$0 | +$2.63M | 0.2%0.0% | +0.20 |
| ICVXIcosavax, Inc. | NewHistory | 163,8790 | +163,879 | $2.58M$0 | +$2.58M | 0.2%0.0% | +0.20 |
| Airbnb, Inc.009066AB7 | New– | –0 | – | $2.53M$0 | +$2.53M | 0.2%0.0% | +0.20 |
| SHELShell plc | ReducedHistory | 37,92839,928 | −2,000−5.0% | $2.50M$2.57M | −$131.6K | 0.2%0.2% | −0.02 |
| MicroStrategy Inc594972AC5 | New– | –0 | – | $2.46M$0 | +$2.46M | 0.2%0.0% | +0.19 |
| SWZTotal Return Securities Fund | ReducedHistory | 298,083300,583 | −2,500−0.8% | $2.44M$2.30M | −$20.5K | 0.2%0.2% | 0.00 |
| ARCHArch Resources, Inc. | AddedHistory | 14,55211,152 | +3,400+30.5% | $2.41M$1.90M | +$564.2K | 0.2%0.2% | +0.03 |
| Brookdale Sr Living Inc112463AC8 | –– | –– | – | $2.37M$806.5K | – | 0.2%0.1% | +0.12 |
| Alnylam Pharmaceuticals, Inc.02043QAB3 | New– | –0 | – | $2.33M$0 | +$2.33M | 0.2%0.0% | +0.18 |
| Sunnova Energy Intl Inc.86745KAH7 | New– | –0 | – | $2.31M$0 | +$2.31M | 0.2%0.0% | +0.18 |
| GOOGLAlphabet Inc. | ReducedHistory | 16,27416,887 | −613−3.6% | $2.27M$2.21M | −$85.6K | 0.2%0.2% | −0.01 |
| RYAAYRyanair Holdings PLC | UnchangedHistory | 16,96216,962 | 00.0% | $2.26M$1.65M | $0 | 0.2%0.1% | +0.04 |
| American Centy ETF Tr025072372 | Unchanged– | 48,80548,805 | 00.0% | $2.24M$2.12M | $0 | 0.2%0.2% | 0.00 |
| TTETotalEnergies SE | ReducedHistory | 33,00042,000 | −9,000−21.4% | $2.22M$2.76M | −$606.4K | 0.2%0.2% | −0.06 |
| DVNDevon Energy Corp | AddedHistory | 48,80033,000 | +15,800+47.9% | $2.21M$1.57M | +$715.7K | 0.2%0.1% | +0.04 |
| SMSM Energy Co | AddedHistory | 57,00035,000 | +22,000+62.9% | $2.21M$1.39M | +$851.8K | 0.2%0.1% | +0.06 |
Estimated amounts multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares): new positions use this quarter's value and sold-out positions last quarter's; positions reported only as principal (PRN) cannot be estimated. 13F shows only quarter-end holdings, not when trades happened or at what price.