CastleKnight Management LP

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), CastleKnight Management LP reported 374 stock positions worth $2.1 billion. Its top holding was Celestica (CLS) at 2.5% of the portfolio, followed by Nvidia (NVDA, 2.4%) and Marvell Technology (MRVL, 2.3%). Compared with Q4 2025, it opened 96 new positions, sold out of 33, added to 107 and reduced 85. The biggest buy was a new position in PBF Energy Class A (PBF) and the biggest sale Vertiv Class A (VRT, shares −89%).

Most Recent 13F
Q2 2026
Location
New York, NY
CIK
0001835751
Portfolio Value
$2.1B (Q1 2026)
SEC Filing
0000919574-26-003331 ↗ filed May 15, 2026

Holdings Value

0$1.0B$2.0B$3.0B Q1 2024: $661.4M Q1 2024 Q2 2024: $714.0M Q2 2024 Q3 2024: $821.3M Q3 2024 Q4 2024: $855.2M Q4 2024 Q1 2025: $896.3M Q1 2025 Q2 2025: $1.5B Q2 2025 Q3 2025: $1.8B Q3 2025 Q4 2025: $1.7B Q4 2025 Q1 2026: $2.1B $2.1B Q1 2026 Q2 2026: $2.7B Q2 2026

Holdings 374 stocks · $2.1B

CLS Celestica Inc. 2.45% 185,415 $52.2M Add +126.2%
NVDA Nvidia Corp. 2.38% 290,700 $50.7M Add +44.5%
MRVL Marvell Technology Inc. 2.32% 499,700 $49.5M Reduce -7.9%
PBF PBF Energy Inc. Class A 2.32% 1,038,306 $49.4M New
MU Micron Technology Inc. 2.30% 144,721 $48.9M Reduce -37.8%
CYH Community Health Systems Inc. 1.75% 12,667,586 $37.2M Add +29.9%
SIMO Silicon Motion Technol-ADR 1.71% 323,475 $36.3M Add +293.4%
SANM Sanmina Corp. 1.58% 259,100 $33.6M Add +323.4%
CVI CVR Energy Inc. 1.50% 948,431 $31.9M New
TEN Tsakos Energy Navigation Ltd. 1.48% 799,391 $31.5M Reduce -35.0%
NAT Nordic American Tankers Ltd. 1.45% 5,263,646 $30.8M Add +0.1%
MSGS Madison Square Garden Sports 1.36% 89,839 $28.9M Reduce -18.5%
TNK Teekay Tankers Ltd. Class A 1.34% 390,336 $28.6M Reduce -32.2%
IREN Iren Ltd. filed as IREN LIMITED 1.30% 806,175 $27.6M Add +35.3%
HUT Hut 8 Corp. 1.26% 570,300 $26.8M Add +4.7%
GOOGL Alphabet Inc. Class A 1.19% 88,300 $25.4M Reduce -19.6%
TBT Proshares Ultrashort 20+Y TR 1.13% 684,449 $24.1M Add +13.1%
SNDK Sandisk Corp. 1.12% 37,600 $23.9M Reduce -60.4%
BTDR Bitdeer Technologies Group-A 1.10% 2,703,516 $23.4M Add +29.0%
AMZN Amazon.com Inc. 1.10% 112,190 $23.4M Add +0.9%
CG The Carlyle Group Inc. 1.07% 472,976 $22.9M Add +78.2%
LXU LSB Industries Inc. 1.06% 1,513,316 $22.5M Reduce -53.3%
HBM Hudbay Minerals Inc. 1.06% 1,078,000 $22.5M Reduce -7.6%
BITF Bitfarms Ltd./Canada 1.00% 10,894,969 $21.2M Add +31.4%
INSW International Seaways Inc. 0.98% 286,801 $20.9M Add +397.5%
CRWV Coreweave Inc. Class A 0.97% 266,100 $20.6M Add +1.4%
DHT DHT Holdings Inc. 0.95% 1,108,516 $20.3M Reduce -5.1%
TSM Taiwan Semiconductor-SP ADR 0.94% 59,500 $20.1M Add +5.9%
AVGO Broadcom Inc. 0.88% 60,600 $18.8M Add +222.3%
NFLX Netflix Inc. 0.88% 194,820 $18.7M New
CF CF Industries Holdings Inc. 0.85% 139,300 $18.1M New
ZD Ziff Davis Inc. 0.83% 422,474 $17.7M Add +32.6%
FRO Frontline PLC 0.82% 502,000 $17.5M New
TTAM Titan America SA 0.79% 1,122,431 $16.8M Add +7.0%
ADV Advantage Solutions Inc. 0.74% 748,323 $15.8M Add +58.6%
ASIX Advansix Inc. 0.72% 631,781 $15.4M New
AMD Advanced Micro Devices 0.72% 74,920 $15.2M Reduce -2.9%
APO Apollo Global Management Inc. 0.68% 129,200 $14.4M Add +629.9%
FSK FS KKR Capital Corp. 0.67% 1,393,200 $14.2M Add +168.4%
TLN Talen Energy Corp. 0.66% 44,100 $14.1M Add +42.7%
MD Pediatrix Medical Group Inc. 0.65% 642,036 $13.7M Add +62.1%
CRM Salesforce Inc. 0.61% 69,900 $13.0M Add +119.1%
CHTR Charter Communications Inc. Class A 0.61% 60,300 $13.0M Add +458.3%
COF Capital One Financial Corp. 0.57% 66,652 $12.2M Add +60.8%
TRMD Torm PLC-A 0.57% 432,296 $12.1M Add +113.1%
AMKR Amkor Technology Inc. 0.53% 251,200 $11.3M Add +44.4%
ILPT Industrial Logistics Propert 0.50% 1,888,199 $10.7M Reduce -1.2%
STNG Scorpio Tankers Inc. 0.50% 142,200 $10.6M Add +343.0%
MAT Mattel Inc. 0.49% 715,376 $10.4M Add +106.5%
PTON Peloton Interactive Inc. Class A 0.48% 2,405,200 $10.3M No change
ENR Energizer Holdings Inc. 0.48% 618,800 $10.2M Add +178.6%
MOD Modine Manufacturing Co. 0.47% 45,756 $9.9M Reduce -86.2%
SIRI Sirius XM Holdings Inc. 0.45% 413,700 $9.5M Add +197.6%
UAL United Airlines Holdings Inc. 0.45% 103,700 $9.5M Add +0.2%
NINE Nine Energy Service Inc. 0.45% 1,157,943 $9.5M New
PERI Perion Network Ltd. 0.44% 941,983 $9.4M Add +96.7%
NCLH Norwegian Cruise Line Holdin 0.44% 496,800 $9.3M Reduce -24.2%
ARDT Ardent Health Inc. 0.43% 1,076,967 $9.2M Reduce -7.8%
UHS Universal Health Services-B 0.43% 51,000 $9.1M Add +27.2%
CMCO Columbus McKinnon Corp. 0.43% 626,100 $9.1M Add +22.5%
STRZ Starz Entertainment Corp. 0.43% 790,654 $9.1M Add +104.0%
HELE Helen of Troy Ltd. 0.43% 629,700 $9.1M Add +34.5%
PK Park Hotels & Resorts Inc. 0.42% 845,222 $8.9M Reduce -2.9%
CIFR Cipher Digital Inc. 0.42% 690,200 $8.9M Add +19.2%
NRG NRG Energy Inc. 0.41% 60,000 $8.8M Add +431.0%
AES AES Corp. 0.39% 591,530 $8.3M Reduce -61.0%
CMP Compass Minerals Internation 0.39% 351,526 $8.2M Add +260.5%
UTZ Utz Brands Inc. 0.37% 997,300 $7.9M Add +3327.2%
DXC DXC Technology Co. 0.37% 627,100 $7.9M Add +93.2%
FCX Freeport-McMoran Inc. 0.37% 132,300 $7.8M Reduce -49.7%
PRGO Perrigo Co. PLC 0.36% 719,300 $7.7M New
INGM Ingram Micro Holding Corp. 0.36% 325,700 $7.6M Add +408.9%
CHRD Chord Energy Corp. 0.36% 53,329 $7.6M New
AMCX AMC Global Media Inc. filed as AMC NETWORKS INC 0.35% 1,109,416 $7.5M Add +231.9%
VRT Vertiv Holdings Co. Class A 0.35% 29,500 $7.4M Reduce -89.3%
DIN Dine Brands Global Inc. 0.35% 281,067 $7.4M Add +2.5%
DAL Delta Air Lines Inc. 0.34% 109,600 $7.3M Add +134.7%
PENN Penn Entertainment Inc. 0.34% 483,800 $7.3M Add +160.5%
OPTU Optimum Communications Inc. Class A 0.33% 5,436,531 $7.1M Add +6.5%
RLJ RLJ Lodging Trust 0.33% 949,800 $7.0M Reduce -6.8%
NUS Nu Skin Enterprises Inc. Class A 0.33% 965,433 $7.0M Add +14.3%
THC Tenet Healthcare Corp. 0.32% 36,200 $6.8M Reduce -28.7%
APA Apa Corp. 0.32% 160,900 $6.8M New
CRGY Crescent Energy Inc. Class A 0.32% 500,640 $6.8M Add +1439.3%
PLAY Dave & Buster's Entertainmen 0.32% 619,365 $6.7M Add +40.6%
COTY Coty Inc. Class A 0.31% 3,291,717 $6.6M Add +661.3%
LILAK Liberty Latin Americ Class C 0.31% 747,900 $6.6M Reduce -8.2%
ALIT Alight Inc. Class A 0.31% 11,266,000 $6.6M Add +15042.5%
DINO HF Sinclair Corp. 0.30% 103,900 $6.5M New
VTRS Viatris Inc. 0.30% 475,700 $6.4M Reduce -3.9%
CX Cemex Sab-Spons ADR Part Cer 0.30% 553,800 $6.3M Reduce -30.2%
NX Quanex Building Products 0.29% 345,600 $6.2M Add +1271.4%
PRMB Primo Brands Corp. 0.29% 327,600 $6.2M Reduce -47.6%
ZETA Zeta Global Holdings Corp. Class A 0.29% 383,400 $6.1M Add +36.4%
ROCK Gibraltar Industries Inc. 0.28% 150,500 $6.0M New
MTDR Matador Resources Co. 0.28% 93,017 $5.9M New
NWL Newell Brands Inc. 0.27% 1,701,900 $5.8M Add +96.8%
CART Maplebear Inc. 0.27% 155,100 $5.8M Add +411.9%
PDD PDD Holdings Inc. 0.27% 56,700 $5.8M No change
CE Celanese Corp. 0.27% 87,400 $5.7M New

Show all 374 holdings

Options reported separately and not counted above: SPY puts ($1.2B), SPY calls ($429.2M), QQQ calls ($421.3M), IWM puts ($409.2M), IWM calls ($344.7M), MU calls ($163.0M), SNDK calls ($116.3M), QQQ puts ($75.0M), NVDA calls ($75.0M), PBF calls ($59.0M), CLS calls ($56.3M), VRT calls ($35.1M), and 59 more.

Other holdings (6): bonds, preferreds, convertibles and warrants · $8.4M (not counted above)
SecurityClassShares / PrincipalValueChange
CORZW Core Scientific Inc. - 27 *W EXP 01/23/202 429,174$3.8MReduce -10.7%
XEROX HOLDINGS CORP (XRX 3.75 03/15/30) NOTE 3.750% 3/1 · principal 8,435,000$2.1MNo change
WOLFSPEED INC (WOLF 2.5 06/15/31) NOTE 2.500% 6/1 · principal 1,222,000$1.8MNew
LIBERTY INTERACTIVE LLC (LINTA 4 11/15/29) DEB 4.000%11/1 · principal 6,100,000$347KNo change
HYAC.WS Haymaker Acquisition Corp.-28 *W EXP 05/31/202 79,600$235KNew
IMSRW HCM II Acquisition Corp. - 29 *W EXP 10/28/203 73,200$190KNo change

Total filed on the 13F, all lines: $2.1B.

Portfolio Sells Q4 2025 → Q1 2026

VRT Vertiv Holdings Co. Class A Reduce -89.3% 0.35% −2.20
META Meta Platforms Inc. Class A Reduce -86.1% 0.24% −2.17
MOD Modine Manufacturing Co. Reduce -86.2% 0.47% −2.06
STKL Sunopta Inc. Sold out 0.00% −1.78
MU Micron Technology Inc. Reduce -37.8% 2.30% −1.50
DBRG Digitalbridge Group Inc. Reduce -82.6% 0.25% −1.48
AES AES Corp. Reduce -61.0% 0.39% −0.85
GOOGL Alphabet Inc. Class A Reduce -19.6% 1.19% −0.78
QQQ Invesco QQQ Trust Series 1 Sold out 0.00% −0.70
LXU LSB Industries Inc. Reduce -53.3% 1.06% −0.52
BW Babcock & Wilcox Enterpr Sold out 0.00% −0.48
TASEKO MINES LTD Reduce -85.6% 0.07% −0.47
TEVA Teva Pharmaceutical-SP ADR Sold out 0.00% −0.44
TNK Teekay Tankers Ltd. Class A Reduce -32.2% 1.34% −0.42
NCLH Norwegian Cruise Line Holdin Reduce -24.2% 0.44% −0.40
FCX Freeport-McMoran Inc. Reduce -49.7% 0.37% −0.40
SCHL Scholastic Corp. Sold out 0.00% −0.34
PAHC Phibro Animal Health Corp. Class A Reduce -68.5% 0.20% −0.32
MRVL Marvell Technology Inc. Reduce -7.9% 2.32% −0.31
CCO Clear Channel Outdoor Holdin Sold out 0.00% −0.31
PRMB Primo Brands Corp. Reduce -47.6% 0.29% −0.30
SPB Spectrum Brands Holdings Inc. Sold out 0.00% −0.29
MSGS Madison Square Garden Sports Reduce -18.5% 1.36% −0.27
FSLR First Solar Inc. Reduce -28.2% 0.22% −0.27
HBM Hudbay Minerals Inc. Reduce -7.6% 1.06% −0.27
THC Tenet Healthcare Corp. Reduce -28.7% 0.32% −0.26
AMD Advanced Micro Devices Reduce -2.9% 0.72% −0.23
CX Cemex Sab-Spons ADR Part Cer Reduce -30.2% 0.30% −0.22
LION Lionsgate Studios Corp. Reduce -83.7% 0.04% −0.21
TER Teradyne Inc. Reduce -93.3% 0.02% −0.21
IFF Intl Flavors & Fragrances Sold out 0.00% −0.19
POWL Powell Industries Inc. Sold out 0.00% −0.19
DOCN Digitalocean Holdings Inc. Reduce -90.1% 0.03% −0.18
RXT Rackspace Technology Inc. Reduce -96.8% 0.00% −0.17
SNDK Sandisk Corp. Reduce -60.4% 1.12% −0.17
AEO American Eagle Outfitters Reduce -20.3% 0.12% −0.17
LUXE Luxexperience BV Reduce -44.5% 0.12% −0.16
ARDT Ardent Health Inc. Reduce -7.8% 0.43% −0.16
CNK Cinemark Holdings Inc. Reduce -45.3% 0.18% −0.15
BIDU Baidu Inc. - Spon ADR Reduce -14.1% 0.22% −0.14
BGS B&G Foods Inc. Reduce -61.6% 0.08% −0.14
VST Vistra Corp. Reduce -13.5% 0.27% −0.14
NVT Nvent Electric PLC Reduce -89.9% 0.01% −0.13
CTLP Cantaloupe Inc. Sold out 0.00% −0.13
TDS Telephone and Data Systems Reduce -27.4% 0.20% −0.13
WULF Terawulf Inc. Reduce -36.5% 0.22% −0.12
DXPE DXP Enterprises Inc. Sold out 0.00% −0.11
CVGW Calavo Growers Inc. Sold out 0.00% −0.11
APLD Applied Digital Corp. Reduce -63.3% 0.05% −0.11
AGX Argan Inc. Sold out 0.00% −0.11

Portfolio Buys Q4 2025 → Q1 2026

PBF PBF Energy Inc. Class A New 2.32% +2.32
CVI CVR Energy Inc. New 1.50% +1.50
SIMO Silicon Motion Technol-ADR Add +293.4% 1.71% +1.27
CLS Celestica Inc. Add +126.2% 2.45% +1.07
SANM Sanmina Corp. Add +323.4% 1.58% +1.05
NFLX Netflix Inc. New 0.88% +0.88
CF CF Industries Holdings Inc. New 0.85% +0.85
FRO Frontline PLC New 0.82% +0.82
INSW International Seaways Inc. Add +397.5% 0.98% +0.82
ASIX Advansix Inc. New 0.72% +0.72
APO Apollo Global Management Inc. Add +629.9% 0.68% +0.53
AVGO Broadcom Inc. Add +222.3% 0.88% +0.51
CHTR Charter Communications Inc. Class A Add +458.3% 0.61% +0.48
NINE Nine Energy Service Inc. New 0.45% +0.45
NAT Nordic American Tankers Ltd. Add +0.1% 1.45% +0.41
STNG Scorpio Tankers Inc. Add +343.0% 0.50% +0.41
PRGO Perrigo Co. PLC New 0.36% +0.36
CHRD Chord Energy Corp. New 0.36% +0.36
UTZ Utz Brands Inc. Add +3327.2% 0.37% +0.35
TRMD Torm PLC-A Add +113.1% 0.57% +0.34
APA Apa Corp. New 0.32% +0.32
NRG NRG Energy Inc. Add +431.0% 0.41% +0.31
DINO HF Sinclair Corp. New 0.30% +0.30
CRGY Crescent Energy Inc. Class A Add +1439.3% 0.32% +0.30
ALIT Alight Inc. Class A Add +15042.5% 0.31% +0.30
SIRI Sirius XM Holdings Inc. Add +197.6% 0.45% +0.29
ROCK Gibraltar Industries Inc. New 0.28% +0.28
INGM Ingram Micro Holding Corp. Add +408.9% 0.36% +0.28
MTDR Matador Resources Co. New 0.28% +0.28
CMP Compass Minerals Internation Add +260.5% 0.39% +0.28
CE Celanese Corp. New 0.27% +0.27
NX Quanex Building Products Add +1271.4% 0.29% +0.27
NOG Northern Oil and Gas Inc. New 0.27% +0.27
SM SM Energy Co. New 0.25% +0.25
WTI W&T Offshore Inc. New 0.24% +0.24
WYFI Whitefiber Inc. New 0.24% +0.24
NVDA Nvidia Corp. Add +44.5% 2.38% +0.24
COTY Coty Inc. Class A Add +661.3% 0.31% +0.23
FSK FS KKR Capital Corp. Add +168.4% 0.67% +0.23
ENR Energizer Holdings Inc. Add +178.6% 0.48% +0.22
ARCB Arcbest Corp. New 0.22% +0.22
HMY Harmony Gold MNG-Spon ADR New 0.21% +0.21
DT Dynatrace Inc. New 0.21% +0.21
MUR Murphy Oil Corp. New 0.20% +0.20
WDAY Workday Inc. Class A New 0.20% +0.20
GDDY GoDaddy Inc. Class A New 0.20% +0.20
CART Maplebear Inc. Add +411.9% 0.27% +0.19
ZD Ziff Davis Inc. Add +32.6% 0.83% +0.19
ASO Academy Sports & Outdoors Inc. New 0.19% +0.19
INV Innventure Inc. New 0.19% +0.19

Options Activity Q4 2025 → Q1 2026

SPY SS SPDR S&P 500 ETF Trust-US put Add +128.8% 1,830,000 $1.2B
SPY SS SPDR S&P 500 ETF Trust-US call Add +59.0% 660,000 $429.2M
QQQ Invesco QQQ Trust Series 1 call Reduce -37.9% 730,000 $421.3M
IWM iShares Russell 2000 ETF put Add +1.9% 1,650,000 $409.2M
IWM iShares Russell 2000 ETF call Add +44.8% 1,390,000 $344.7M
MU Micron Technology Inc. call Add +12.2% 482,500 $163.0M
SNDK Sandisk Corp. call Add +815.0% 183,000 $116.3M
QQQ Invesco QQQ Trust Series 1 put Reduce -62.9% 130,000 $75.0M
NVDA Nvidia Corp. call New 430,000 $75.0M
PBF PBF Energy Inc. Class A call New 1,240,000 $59.0M
CLS Celestica Inc. call Add +233.3% 200,000 $56.3M
VRT Vertiv Holdings Co. Class A call Reduce -17.6% 140,000 $35.1M
MRVL Marvell Technology Inc. call Add +28.0% 320,000 $31.7M
MOD Modine Manufacturing Co. call Sold out 230,000 $30.7Mbefore exit
CF CF Industries Holdings Inc. call New 210,000 $27.3M
AVGO Broadcom Inc. call Reduce -20.0% 80,000 $24.8M
AMAT Applied Materials Inc. call New 70,000 $23.9M
GOOGL Alphabet Inc. Class A call New 80,000 $23.0M
AMD Advanced Micro Devices call New 100,000 $20.3M
SIMO Silicon Motion Technol-ADR call Add +1213.9% 180,000 $20.2M
META Meta Platforms Inc. Class A call New 30,000 $17.2M
CVI CVR Energy Inc. call New 500,000 $16.8M
TSM Taiwan Semiconductor-SP ADR call New 45,000 $15.2M
NFLX Netflix Inc. call New 150,000 $14.4M
FCX Freeport-McMoran Inc. call Add +1050.0% 230,000 $13.5M
AMZN Amazon.com Inc. call Add +20.0% 60,000 $12.5M
DINO HF Sinclair Corp. call New 200,000 $12.5M
DAL Delta Air Lines Inc. call New 180,000 $12.0M
DELL Dell Technologies -C call New 70,000 $11.5M
SANM Sanmina Corp. call Reduce -33.3% 80,000 $10.4M
MSGS Madison Square Garden Sports call New 30,000 $9.6M
RDDT Reddit Inc. Class A call New 70,000 $9.4M
ASIX Advansix Inc. call New 385,300 $9.4M
UAL United Airlines Holdings Inc. call New 100,000 $9.2M
APA Apa Corp. call New 210,000 $8.9M
FSK FS KKR Capital Corp. call New 800,000 $8.1M
NTR Nutrien Ltd. call New 100,000 $7.5M
LITE Lumentum Holdings Inc. call New 10,000 $7.0M
DY Dycom Industries Inc. call Sold out 20,000 $6.8Mbefore exit
CE Celanese Corp. call New 100,000 $6.6M
BABA Alibaba Group Holding-SP ADR call New 50,000 $6.3M
DOW Dow Inc. call New 150,000 $6.2M
CHRD Chord Energy Corp. call New 40,000 $5.7M
APO Apollo Global Management Inc. call New 50,000 $5.6M
TNK Teekay Tankers Ltd. Class A call Sold out 100,000 $5.3Mbefore exit
LXU LSB Industries Inc. call New 330,000 $4.9M
FTAI Ftai Aviation Ltd. call New 20,000 $4.9M
TLN Talen Energy Corp. call Reduce -25.0% 15,000 $4.8M
GDX Vaneck Gold Miners ETF call New 50,000 $4.6M
IREN Iren Ltd. call New 130,000 $4.5M

Showing the first 50 of 85.

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

Notes & Other Activity Q4 2025 → Q1 2026

CORZW Core Scientific Inc. - 27 *W EXP 01/23/202 Reduce -10.7% 429,174 $3.8M
WOLFSPEED INC (WOLF 2.5 06/15/31) NOTE 2.500% 6/1 · principal New 1,222,000 $1.8M
HYAC.WS Haymaker Acquisition Corp.-28 *W EXP 05/31/202 New 79,600 $235K

Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 397$2.7BIREN, CLS, NVDA, PBF, CYH
Q1 2026 374$2.1BCLS, NVDA, MRVL, PBF, MU
Q4 2025 311$1.7BMU, MRVL, VRT, MOD, META
Q3 2025 362$1.8BMRVL, MU, MOD, VRT, META
Q2 2025 350$1.5BVRT, CYH, CLS, NVDA, MU
Q1 2025 284$896.3MCLS, VRT, NVDA, CYH, META
Q4 2024 304$855.2MCYH, PLAY, FSLR, VRT, ARDT
Q3 2024 303$821.3MSMCI, WDC, VRT, CYH, CLS
Q2 2024 280$714.0MWDC, CYH, VRT, PDD, CLS
Q1 2024 263$661.4MCYH, WDC, VRT, CLS, GOOGL