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Rubric Capital Management LP

CIK 1687509 · latest 13F filed 14 August 2026 · Read the filing on EDGAR

Rubric Capital Management LP reported 86 US-listed holdings worth $10.90 billion in its 13F for the quarter ended 30 June 2026, filed 14 August 2026. Its largest: Talen Energy Corp. (12.7%), Ftai Aviation Ltd (7.4%) and Viatris Inc. (5.0%). Against the quarter before, it opened 18 positions, added to 35, trimmed 10 and sold out of 13.

Reported holdings$10.90B+33.5% on Q1 2026
Positions86+5 on Q1 2026
The largest ten46.4%of its reported holdings
Latest 13FQ2 2026filed 14 August 2026
Where the money is
OpenedAdded toHeld
TLN12.7%FTAI7.4%VTRS5.0%TEVA4.8%GLNG4.2%VST2.6%TAC2.6%FLR2.4%KNSA2.3%BGC2.3%ZM2.2%GIL2.1%ARQT2.0%AMZN2.0%72 more45.3%

The 14 largest of its 86 positions, each sized by its share of the reported holdings, coloured by the change in shares against Q1 2026.

Reported holdings, quarter by quarter
Q3 2024: $6.11 billion in 63 positions$6.11BQ3 24Q4 2024: $5.50 billion in 66 positions$5.50BQ4 24Q1 2025: $5.58 billion in 64 positions$5.58BQ1 25Q2 2025: $6.22 billion in 62 positions$6.22BQ2 25Q3 2025: $7.44 billion in 69 positions$7.44BQ3 25Q4 2025: $8.36 billion in 75 positions$8.36BQ4 25Q1 2026: $8.16 billion in 81 positions$8.16BQ1 26Q2 2026: $10.90 billion in 86 positions$10.9BQ2 26

What the fund reported holding at each quarter's end; hover a bar for the number of positions

What it did on the quarter

Opened 18Added 35Held 23Trimmed 10Sold out 13
Opened: 18Added: 35Held: 23Trimmed: 10Sold out: 13

Its positions against its 13F for the quarter to 31 March 2026; a change under 0.1% of a position counts as held

Opened 18

  1. Fluor Corp. FLR$262.9 million
  2. Amazon.com Inc. AMZN$214.5 million
  3. Sonoco Products Co. SON$64.4 million
  4. Stubhub Hldgs Inc. STUB$64.3 million
  5. Galaxy Digital Inc. Class A GLXY$64.1 million
  6. Establishment Labs Holdings In ESTA$59.1 million
  7. Alvotech ALVO$57.8 million
  8. Versigent plc VGNT$35.9 million

and 10 more in the table below

Added to 35

  1. Gildan Activewear Inc. GIL+3.1 million shares · +222%
  2. Zoom Video Communications in ZM+1.8 million shares · +176%
  3. Pennymac Finl Svcs Inc. New PFSI+1.6 million shares · +3006%
  4. Amcor plc AMCR+2.9 million shares · +228%
  5. Nurix Therapeutics Inc. NRIX+4.8 million shares · +192%
  6. Ftai Aviation Ltd FTAI+423,814 shares · +16%
  7. Ardelyx Inc. ARDX+14.3 million shares · +771%
  8. Adma Biologics, Inc. ADMA+7.5 million shares · +416%

and 27 more in the table below

Trimmed 10

  1. Adeia Inc. ADEA-2.2 million shares · -50%
  2. Mercury General Corp. MCY-613,064 shares · -28%
  3. Carter's, Inc. CRI-932,009 shares · -91%
  4. Proto Labs Inc. PRLB-377,708 shares · -78%
  5. Trevi Therapeutics Inc. TRVI-1.2 million shares · -33%
  6. Amneal Pharmaceuticals Inc. AMRX-868,929 shares · -8%
  7. Edgewell Personal Care Co. EPC-455,535 shares · -11%
  8. Ecovyst Inc. ECVT-924,179 shares · -10%

and 2 more in the table below

Sold out of 13

  1. Constellation Energy Corp. CEG$199.7 million last quarter
  2. Akamai Technologies Inc. AKAM$149.3 million last quarter
  3. Telephone & Data Systems Inc. TDS$77.9 million last quarter
  4. Protagonist Therapeutics, Inc. PTGX$45.1 million last quarter
  5. Calavo Growers Inc. CVGW$36.5 million last quarter
  6. Telesat Corp. TSAT$30.5 million last quarter
  7. Biomarin Pharmaceutical Inc. BMRN$24.9 million last quarter
  8. Indivior Pharmaceuticals, Inc. INDV$20.2 million last quarter

What it holds

CompanySharesValueOf its bookChange in shares
Talen Energy Corp. TLN3,602,171$1.38 billion12.70%no change
Ftai Aviation Ltd FTAI3,000,000$811.6 million7.45%+423,814
Viatris Inc. VTRS34,168,743$542.6 million4.98%+668,743
Teva Pharmaceutical Industries Ltd. TEVA15,575,000$527.7 million4.84%+325,000
Golar LNG Ltd GLNG9,178,978$457.5 million4.20%no change
Vistra Corp. VST1,794,953$284.7 million2.61%+294,953
Transalta Corp. TAC20,232,011$279.8 million2.57%+2,450,686
Fluor Corp. FLR5,017,248$262.9 million2.41%new
Kiniksa Pharmaceuticals Intl KNSA3,999,800$255.8 million2.35%+249,800
BGC Group, Inc. BGC23,800,000$254.4 million2.33%+500,000
Zoom Video Communications in ZM2,766,009$238.7 million2.19%+1,765,003
Gildan Activewear Inc. GIL4,500,000$232.2 million2.13%+3,104,210
Arcutis Biotherapeutics Inc. ARQT8,271,577$216.9 million1.99%no change
Amazon.com Inc. AMZN900,000$214.5 million1.97%new
Roivant Sciences Ltd. ROIV6,000,000$212.3 million1.95%+1,000,000
Zymeworks Inc. ZYME7,000,000$183.0 million1.68%no change
Amcor plc AMCR4,162,030$180.4 million1.66%+2,892,634
Cimpress PLC CMPR1,750,000$178.0 million1.63%+120,581
Amneal Pharmaceuticals Inc. AMRX10,168,660$176.0 million1.62%-868,929
Nurix Therapeutics Inc. NRIX7,227,778$175.3 million1.61%+4,753,893
Mercury General Corp. MCY1,541,440$164.3 million1.51%-613,064
Pennymac Finl Svcs Inc. New PFSI1,700,000$148.1 million1.36%+1,645,273
Integra LifeSciences Holdings Corp. IART7,753,934$139.3 million1.28%no change
Delek US Hldgs Inc. New DK2,687,449$136.5 million1.25%no change
Liberty Global Ltd LBTYA11,752,855$133.6 million1.23%no change
Meiragtx Holdings PLC MGTX9,100,000$122.9 million1.13%+2,100,000
GEO Group Inc. GEO4,131,219$122.1 million1.12%+388,039
Liberty Latin America Ltd LILAK15,645,430$121.9 million1.12%+250,000
Schrodinger, Inc. SDGR6,400,000$104.0 million0.95%+400,000
Ecovyst Inc. ECVT8,211,888$102.2 million0.94%-924,179
Liberty Global Ltd LBTYK9,259,361$101.9 million0.93%no change
Compass Inc. COMP8,218,394$101.3 million0.93%+4,471,546
Newell Brands Inc. NWL16,000,000$98.2 million0.90%+742,569
Edgewell Personal Care Co. EPC3,544,465$95.2 million0.87%-455,535
CoreCivic, Inc. CXW2,847,436$86.5 million0.79%+788,220
Ardelyx Inc. ARDX16,202,700$82.6 million0.76%+14,341,804
Enovis Corp. ENOV3,900,000$80.7 million0.74%+1,446,735
Adma Biologics, Inc. ADMA9,339,414$78.2 million0.72%+7,530,006
Mannkind Corp. MNKD18,000,000$76.7 million0.70%+14,379,587
Driven Brands Hldgs Inc. DRVN5,300,613$73.9 million0.68%+2,300,613
Opko Health Inc. OPK47,791,243$71.7 million0.66%no change
Mission Produce Inc. AVO5,981,953$70.5 million0.65%+4,255,506
Adeia Inc. ADEA2,126,633$70.0 million0.64%-2,157,572
Renew Energy Global PLC RNW11,000,000$68.8 million0.63%no change
Stratasys Ltd SSYS8,000,000$68.5 million0.63%no change
Ars Pharmaceuticals Inc. SPRY8,540,861$68.4 million0.63%+540,861
Andersons, Inc. ANDE999,559$68.4 million0.63%+143,740
Primo Brands Corporation PRMB2,672,231$65.3 million0.60%-110,173
Sonoco Products Co. SON1,143,562$64.4 million0.59%new
Stubhub Hldgs Inc. STUB5,000,000$64.3 million0.59%new
Galaxy Digital Inc. Class A GLXY2,343,169$64.1 million0.59%new
Venture Global Inc. VG5,410,280$60.2 million0.55%+3,910,280
Establishment Labs Holdings In ESTA688,325$59.1 million0.54%new
QuidelOrtho Corp. QDEL3,306,281$57.9 million0.53%no change
Alvotech ALVO15,677,093$57.8 million0.53%new
Target Hospitality Corp. TH2,586,389$52.7 million0.48%+396,933
Dnow Inc. DNOW3,898,635$50.6 million0.46%+2,631,108
Prothena Corp. PLC PRTA5,000,000$49.0 million0.45%no change
Trevi Therapeutics Inc. TRVI2,504,513$46.7 million0.43%-1,207,860
Collegium Pharmaceutical, Inc. COLL1,279,611$46.3 million0.43%no change
Arbutus Biopharma Corp. ABUS7,532,937$36.2 million0.33%+906,548
Versigent plc VGNT855,163$35.9 million0.33%new
Xperi Inc. XPER4,143,744$34.1 million0.31%no change
Orthofix Med Inc. OFIX3,721,715$34.0 million0.31%no change
TripAdvisor, Inc. TRIP2,439,110$33.4 million0.31%new
Mativ Holdings Inc. MATV3,982,442$30.1 million0.28%no change
Liberty Latin America Ltd LILA3,777,654$29.6 million0.27%+27,654
Biohaven Ltd BHVN1,721,493$25.6 million0.24%new
Commscope Hldg Co. Inc. VISN2,000,000$25.6 million0.23%no change
ANI Pharmaceuticals Inc. ANIP258,131$21.4 million0.20%new
Uniqure NV QURE408,581$18.8 million0.17%new
Hudson Pac Pptys Inc. HPP1,019,598$15.5 million0.14%new
Seaport Entertainment Group In SEG568,530$15.1 million0.14%no change
GDS Hldgs Ltd GDS485,873$14.6 million0.13%new
Heron Therapeutics Inc. HRTX30,046,828$12.8 million0.12%no change
Proto Labs Inc. PRLB108,692$8.9 million0.08%-377,708
Grupo Aeromexico Sab De CV AERO467,129$8.4 million0.08%no change
Omeros Corp. OMER656,874$6.2 million0.06%new
Eupraxia Pharmaceuticals Inc. EPRX867,424$5.7 million0.05%+176,254
Edesa Biotech Inc. EDSA669,500$5.4 million0.05%-18,000
Mereo Biopharma Group PLC MREO15,307,347$4.9 million0.04%no change
Abeona Therapeutics Inc. ABEO608,771$3.8 million0.03%new
Carter's, Inc. CRI86,844$3.6 million0.03%-932,009
Therapeuticsmd Inc. Com New TXMD1,192,191$2.6 million0.02%no change
Tetra Technologies Inc. Del TTI150,000$1.7 million0.02%new
Service Pptys Trust SVC900,000$1.5 million0.01%new
Every US-listed position in the fund's 13F for the quarter ended 30 June 2026, by the value it reported.
Read moreChange is shares against its 13F for the quarter before; the 13 it sold out of are in the box above.