In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 12, 2025), Western Standard LLC reported 22 stock positions worth $187.0 million . Its top holding was Keros Therapeutics (KROS) at 18.5% of the portfolio, followed by Octave Specialty (OSG, 11.8% ) and Alphatec (ATEC, 9.8% ). Compared with Q2 2025, it opened 11 new positions, sold out of 9, added to 3 and reduced 3. The biggest buy was a new position in Octave Specialty (OSG) and the biggest sale an exit from Ecovyst (ECVT).
Location Los Angeles, CA
CIK 0001517666
Portfolio Value $187.0M (Q3 2025) Holdings 22 stocks · $187.0M Holdings quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock % Of Portfolio ▼ Shares Held Total Value Change vs Q2 2025 KROS Keros Therapeutics Inc. 18.53% 2,189,882 $34.6M Add +42.7% OSG Octave Specialty Group Inc. filed as AMBAC FINL GROUP INC 11.78% 2,641,351 $22.0M New ATEC Alphatec Holdings Inc. 9.76% 1,255,374 $18.3M No change SEM Select Medical Holdings Corp. 7.25% 1,055,357 $13.6M New DRVN Driven Brands Holdings Inc. 5.97% 693,413 $11.2M Add +69.3% EZPW Ezcorp Inc. Class A 5.40% 530,000 $10.1M No change GDOT Green Dot Corp. Class A 4.79% 666,330 $8.9M Add +14.8% CWCO Consolidated Water Co.-Ord SH 4.00% 211,785 $7.5M Reduce -34.6% NPK National Presto Inds Inc. 3.64% 60,730 $6.8M No change BBWI Bath & Body Works Inc. 3.62% 263,061 $6.8M New ABEO Abeona Therapeutics Inc. 3.53% 1,249,957 $6.6M Reduce -40.2% FIVE Five Below 3.36% 40,600 $6.3M New AVNW Aviat Networks Inc. 3.29% 267,906 $6.1M No change UUP Invesco DB US Dollar Index B 2.73% 185,453 $5.1M No change MCW Mister Car Wash Inc. 2.22% 777,482 $4.1M New YETI Yeti Holdings Inc. filed as YETI HLDGS INC 2.10% 118,455 $3.9M Reduce -64.6% FRPT Freshpet Inc. 1.89% 64,000 $3.5M New SXT Sensient Technologies Corp. 1.73% 34,452 $3.2M New ABUS Arbutus Biopharma Corp. 1.23% 507,853 $2.3M New IOSP Innospec Inc. 1.11% 27,000 $2.1M New CMA Comerica Inc. 1.08% 29,500 $2.0M New FIGS Figs Inc. Class A 1.00% 278,440 $1.9M New
Options reported separately and not counted above: SPY puts ($119.9M), IWM puts ($30.2M).
Portfolio Sells Q2 2025 → Q3 2025 Portfolio Sells quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q2 2025 % Of Portfolio Change To Portfolio ▲ ECVT Ecovyst Inc. Sold out 0.00% −16.33 TIGO Millicom Intl Cellular S.A. Sold out 0.00% −6.55 PBPB Potbelly Corp. Sold out 0.00% −6.32 AIV Apartment Invt & Mgmt Co. Class A Sold out 0.00% −5.10 YETI Yeti Holdings Inc. Reduce -64.6% 2.10% −3.76 ABEO Abeona Therapeutics Inc. Reduce -40.2% 3.53% −3.08 NBN Northeast Bank Sold out 0.00% −2.63 NNI Nelnet Inc. Class A Sold out 0.00% −2.45 CWCO Consolidated Water Co.-Ord SH Reduce -34.6% 4.00% −1.41 EVRI Everi Holdings Inc. Sold out 0.00% −1.15 PRTS Carparts.com Inc. Sold out 0.00% −0.79 K Kellanova Sold out 0.00% −0.40
Portfolio Buys Q2 2025 → Q3 2025 Portfolio Buys quarter Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024 Q1 2024
Stock Change vs Q2 2025 % Of Portfolio Change To Portfolio ▼ OSG Octave Specialty Group Inc. New 11.78% +11.78 SEM Select Medical Holdings Corp. New 7.25% +7.25 KROS Keros Therapeutics Inc. Add +42.7% 18.53% +7.13 BBWI Bath & Body Works Inc. New 3.62% +3.62 FIVE Five Below New 3.36% +3.36 MCW Mister Car Wash Inc. New 2.22% +2.22 DRVN Driven Brands Holdings Inc. Add +69.3% 5.97% +1.97 FRPT Freshpet Inc. New 1.89% +1.89 SXT Sensient Technologies Corp. New 1.73% +1.73 GDOT Green Dot Corp. Class A Add +14.8% 4.79% +1.30 ABUS Arbutus Biopharma Corp. New 1.23% +1.23 IOSP Innospec Inc. New 1.11% +1.11 CMA Comerica Inc. New 1.08% +1.08 FIGS Figs Inc. Class A New 1.00% +1.00
Options Activity Q2 2025 → Q3 2025 Security Type Change vs Q2 2025 Underlying Shares Value ▼ SPY SS SPDR S&P 500 ETF Trust-US put New 180,000 $119.9M IWM iShares Russell 2000 ETF put New 125,000 $30.2M
Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.
All Filings Quarter Positions 13F Reported Value Top Holdings Q2 2026 27 $295.3M GDOT, GLAS, CODI, ABVX, AVTR Q1 2026 23 $190.2M GDOT, CODI, TFX, IOSP, OSG Q4 2025 25 $216.8M SEM, ATEC, GDOT, IOSP, OSG Q3 2025 22 $187.0M KROS, OSG, ATEC, SEM, DRVN Q2 2025 20 $179.7M ECVT, KROS, ATEC, ABEO, TIGO Q1 2025 29 $170.1M FFNW, VTOL, K, ATEC, ABEO Q4 2024 23 $150.1M FFNW, VTOL, ABEO, MCY, ECVT Q3 2024 21 $106.6M EQC, VTOL, ABEO, ZUO, NVRO Q2 2024 22 $96.6M EQC, VTOL, ZUO, ABEO, PBPB Q1 2024 22 $106.1M MACK, VTOL, ABEO, EQC, FIS