Rubric Capital Management LP's Q1 2026 13F: 16 new positions, 10 exits

Form 13F-HR for the quarter ended Mar 31, 2026 · filed May 15, 2026 · 81 reported positions · accession 0001104659-26-062466

What changed this quarter

Rubric Capital Management LP's changes in reported equity positions, Q1 2026
Activity Security Weight before Weight now Change Shares Shares %
Reduced FTAI AVIATION LTD (FTAI) 8.7% 7.7% −1.0 pts −1.12M sh −30%
Reduced TEVA PHARMACEUTICAL INDS LTD (TEVA) 8.0% 5.6% −2.3 pts −6.11M sh −29%
Exited FLUOR CORP NEW (FLR) 2.0% — −2.0 pts −4.14M sh −100%
Reduced ROIVANT SCIENCES LTD (ROIV) 2.3% 1.7% −0.6 pts −4M sh −44%
Increased VIATRIS INC (VTRS) 3.8% 5.5% +1.7 pts +8M sh +31%
New ZOOM COMMUNICATIONS INC (ZM) — 1.0% +1.0 pts +1M sh new
Reduced VISTRA CORP (VST) 3.9% 2.8% −1.1 pts −500K sh −25%
Exited EOS ENERGY ENTERPRISES INC (EOSE) 0.9% — −0.9 pts −6.5M sh −100%
Increased EDGEWELL PERSONAL CARE CO (EPC) 0.2% 1.0% +0.8 pts +2.99M sh +297%
Increased GILDAN ACTIVEWEAR INC (GIL) 0.2% 1.0% +0.8 pts +1.14M sh +444%
Exited ARCHER DANIELS MIDLAND CO (ADM) 0.8% — −0.8 pts −1.1M sh −100%
Exited BUNGE GLOBAL SA (BG) 0.7% — −0.7 pts −677K sh −100%
New AMCOR PLC (AMCRZZZZ) — 0.6% +0.6 pts +1.27M sh new
New PROTAGONIST THERAPEUTICS INC (PTGX) — 0.6% +0.6 pts +428K sh new
Increased LIBERTY LATIN AMERICA LTD (LILAK) 1.0% 1.7% +0.7 pts +4.74M sh +44%
New DRIVEN BRANDS HLDGS INC (DRVN) — 0.5% +0.5 pts +3M sh new
Increased LIBERTY GLOBAL LTD (LBTYK) 0.8% 1.3% +0.5 pts +3.14M sh +51%
New CALAVO GROWERS INC (CVGW) — 0.4% +0.4 pts +1.42M sh new
New VISTANCE NETWORKS INC (VISN) — 0.4% +0.4 pts +2M sh new
Reduced PROTO LABS INC (PRLB) 0.7% 0.3% −0.3 pts −637K sh −57%
Increased ZYMEWORKS INC (ZYME) 1.8% 2.1% +0.3 pts +1.25M sh +22%
Exited GRAPHIC PACKAGING HLDG CO (GPK) 0.4% — −0.4 pts −2M sh −100%
Exited NEW FORTRESS ENERGY INC (NFE) 0.3% — −0.3 pts −23.7M sh −100%
New BIOMARIN PHARMACEUTICAL INC (BMRN) — 0.3% +0.3 pts +441K sh new
Exited DARLING INGREDIENTS INC (DAR) 0.3% — −0.3 pts −681K sh −100%
Reduced COMPASS INC (COMP) 0.9% 0.3% −0.5 pts −3.25M sh −46%
New MISSION PRODUCE INC (AVO) — 0.3% +0.3 pts +1.73M sh new
New VENTURE GLOBAL INC (VG) — 0.3% +0.3 pts +1.5M sh new
Increased ARBUTUS BIOPHARMA CORP (ABUS) 0.1% 0.4% +0.3 pts +5.05M sh +321%
Increased BGC GROUP INC (BGC) 2.2% 2.8% +0.5 pts +2.3M sh +11%
Increased LIBERTY GLOBAL LTD (LBTYA) 1.3% 1.7% +0.4 pts +1.73M sh +17%
Increased SCHRODINGER INC (SDGR) 0.9% 0.8% −0.1 pts +1.83M sh +44%
Increased KINIKSA PHARMACEUTICALS INTL (KNSA) 1.6% 2.2% +0.6 pts +421K sh +13%
New INDIVIOR PHARMACEUTICALS INC (INDVZZZZ) — 0.2% +0.2 pts +663K sh new
Increased CARTERS INC (CRI) 0.2% 0.4% +0.3 pts +559K sh +121%
Reduced ECOVYST INC (ECVT) 1.2% 1.4% +0.2 pts −1.36M sh −13%
Exited INDIVIOR PLC (INDV) 0.2% — −0.2 pts −499K sh −100%
New ADMA BIOLOGICS INC (ADMA) — 0.2% +0.2 pts +1.81M sh new
Reduced AMNEAL PHARMACEUTICALS INC (AMRX) 1.9% 1.7% −0.2 pts −1.3M sh −11%
Reduced PRIMO BRANDS CORPORATION (PRMB) 0.7% 0.6% −0.1 pts −846K sh −23%
Increased LIBERTY LATIN AMERICA LTD (LILA) 0.2% 0.4% +0.2 pts +1.81M sh +93%
Exited SMURFIT WESTROCK PLC (SW) 0.2% — −0.2 pts −400K sh −100%
New DNOW INC (DNOW) — 0.2% +0.2 pts +1.27M sh new
Increased ARS PHARMACEUTICALS INC (SPRY) 0.9% 0.8% −0.1 pts +1.8M sh +29%
Increased PROTHENA CORP PLC (PRTA) 0.4% 0.6% +0.2 pts +1.32M sh +36%
Increased CONSTELLATION ENERGY CORP (CEG) 2.8% 2.4% −0.4 pts +45,000 sh +7%
Increased AKAMAI TECHNOLOGIES INC (AKAM) 1.3% 1.8% +0.6 pts +100K sh +8%
New ARDELYX INC (ARDX) — 0.1% +0.1 pts +1.86M sh new
Reduced ANDERSONS INC (ANDE) 0.6% 0.8% +0.1 pts −150K sh −15%
Exited STUBHUB HLDGS INC (STUB) 0.1% — −0.1 pts −785K sh −100%

The 50 largest of 65 changes, by size of the trade. Full holdings for this quarter.

Reported by the fund in its Form 13F filed with the SEC; holdings are as of the quarter-end report date and may have changed since. For informational purposes only — not investment advice or a recommendation to buy or sell any security. FilingExplorer is not affiliated with or endorsed by this fund. How this brief is compiled

Top 10 positions — 52.3% of the equity book

Changes in the top 10 this quarter: BGC entered · ROIV left

# Security Weight before Weight now
1 TALEN ENERGY CORP (TLN) 16.2% 14.1%
2 FTAI AVIATION LTD (FTAI) 8.7% 7.7%
3 GOLAR LNG LTD (GLNG) 4.1% 6.1%
4 TEVA PHARMACEUTICAL INDS LTD (TEVA) 8.0% 5.6%
5 VIATRIS INC (VTRS) 3.8% 5.5%
6 TRANSALTA CORP (TAC) 2.7% 2.9%
7 BGC GROUP INC (BGC) 2.2% 2.8% Entered the top 10
8 VISTRA CORP (VST) 3.9% 2.8%
9 CONSTELLATION ENERGY CORP (CEG) 2.8% 2.4%
10 ARCUTIS BIOTHERAPEUTICS INC (ARQT) 2.9% 2.4%
— ROIVANT SCIENCES LTD (ROIV) 2.3% 1.7% Left the top 10

Weights are each position's reported value as a share of the fund's reported equity positions (options and principal-amount holdings excluded).

Option positions (puts and calls)

Reported separately from the positions above. The value a 13F reports for an option is that of the underlying shares, not the option itself.

Activity Security Type Shares before Shares now Reported value
New ISHARES TR (IWM) Put 0 5.15M $1.28B