GC Biopharma
Korean maker of plasma-derived drugs like IVIG and vaccines, formerly Green Cross.
GC Biopharma just posted its first profitable Q4 in seven years, riding Alyglo's US growth and a one-time Curevo payout, in a plasma market the big five fractionators still dominate.
GC Biopharma makes medicines from donated blood plasma, a business that requires FDA permission, physical collection centers, and years of government approval to operate. Competitors like CSL and Grifols control most of the market and have built-in advantages that AI and new companies cannot quickly copy, because you cannot get an FDA license overnight or build a plasma network from scratch. The real question is whether GC's recent profit jump comes from genuine growth in its US product or just from a one-time cash infusion from selling a business unit to Eli Lilly; if it is the latter, profits may disappear in 2026 and 2027, and family ownership means most shareholders will never see big returns.
Escalation of the May 2026 FDA warning letter to GC America into a wider compliance action. Would signal manufacturing risk to Alyglo supply and US revenue.
Korea Constitutional Court ruling on the vaccine bid-rigging antitrust appeal. Would show whether GC Biopharma faces procurement bans or added legal costs in Korea.
- FY2025 revenue 1.9913T KRW, up 18.5% YoY, a record
- Alyglo US sales topped 150B KRW (~$106M) in 2025
- Curevo stake sold to Eli Lilly for ~459.9B KRW (~$304M)
- FY2025 profit turnaround may depend on one-time Curevo cash rather than organic operations.
- FDA warning letter to GC America (May 2026) could escalate into broader manufacturing compliance action.
- Constitutional Court antitrust appeal outcome could impose further penalties or reputational damage.
- Family control via GC Corp (51.26%) limits minority shareholder influence and upside.
- Structural subscale position behind CSL, Grifols, Takeda caps long-term market share gains.
| Rival | Direction | Evidence |
|---|---|---|
| CSL Behring | losing to | CSL among five firms holding 75-80% of global plasma-fractionation share as of 2025-07-31 |
| Grifols | losing to | Named alongside CSL as dominant plasma player controlling most of global market share, 2025 |
| Takeda | losing to | Part of the five-firm oligopoly holding 75-80% global plasma share, 2025-07-31 |
| Eli Lilly | contesting | Acquired GC's Curevo affiliate for $1.5B in shingles vaccine deal, announced 2026-05-27 |
| Teleflex/Vascular Solutions | gaining on | FDA licensed rival freeze-dried plasma product Ezplaz on 2026-07-29, new adjacent competitor |
- Is GC Biopharma profitable in 2026?
- GC Biopharma returned to profit in Q4 2025, its first profitable fourth quarter in seven years, with FY2025 operating profit of 69.1 billion KRW, more than double 2024's figure, on 18.5% revenue growth to about 1.9913 trillion KRW, per a January 27, 2026 report.
- What is driving GC Biopharma's revenue growth?
- Alyglo, GC's US IVIG product launched September 9, 2024, grew every quarter in 2025 and rose 117% year over year in Q3 2025, pushing full-year 2025 US Alyglo sales above 150 billion KRW (about $106M), per company reporting cited January 27, 2026.
- Who owns GC Biopharma?
- GC Biopharma is majority controlled by GC Corp, the Huh family's holding company, which held roughly 51.26% of shares as of September 30, 2025, keeping strategic control concentrated in the founding family rather than dispersed public shareholders.
- Could AI replace GC Biopharma's business?
- No. GC's core value is FDA-licensed plasma manufacturing and about 8 US plasma centers collecting roughly 400,000 liters per year, physical and regulatory assets AI cannot replicate; GC's AI use is limited to a May 2026 government-funded drug discovery validation role.
- How big is the Curevo sale to Eli Lilly for GC Biopharma?
- GC Biopharma sold its 20.3% Curevo stake to Eli Lilly for about 459.9 billion KRW ($303.9M) announced May 27, 2026, receiving a first tranche of $189.52M on July 9, 2026, while retaining a manufacturing supply deal and future royalty rights.
- Who is GC Biopharma's biggest competitor?
- GC Biopharma competes against CSL Behring, Grifols, Takeda, Octapharma, and Kedrion, which together hold an estimated 75-80% of the global plasma-fractionation market as of a July 31, 2025 industry report, making GC a smaller, faster-growing challenger rather than a leader.
- 2026-07-09GC receives first Curevo sale tranche of $189.52M from Eli Lilly
- 2026-06-24Q1 2026 revenue reported at 435.53B KRW, up 13.49% year over year
- 2026-05-27GC sells 20.3% Curevo stake to Eli Lilly for about $303.9M
- 2026-05-15GC joins government-backed AI drug discovery platform project
- 2026-05-14FDA issues warning letter to GC America over CGMP deficiencies
- 2026-04-29Constitutional Court accepts GC's antitrust penalty appeal
- 2026-02-01Korea Supreme Court upholds 2.035B KRW antitrust penalty on GC
- 2026-01-27GC reports FY2025 revenue of 1.9913T KRW, up 18.5% year over year
- 2025-11-03Q3 2025 sales hit record 609.5B KRW, up 31% year over year
- 2024-09-09Alyglo commercial launch begins in the US market
- GC Biopharma swings to profit in Q4, boosts 2025 sales 18.5% (2026-01-27)
- GC Biopharma hits record revenue as Aliglo boosts South Korea growth (2026-01-26)
- GC Pharma posts 609.5 billion won in Q3 sales (2025-11-03)
- GC Biopharma marks record-high sales of ₩609.5 bil. in Q3 (2025-11-04)
- GC Biopharma (KRX) (2026-06-24)
- December 15, 2023 Approval Letter - ALYGLO
- GC Biopharma Launches ALYGLO (2024-09-09)
- GC Biopharma Sells US Vaccine Affiliate Curevo to Lilly (2026-05-27)
- GC Biopharma secures KRW 286.8b from Lilly in Curevo sale (2026-07-10)
- Lilly buys Curevo as GC Biopharma secures cash and future royalties (2026-05-27)
- Who Owns GC Biopharma?
- GC Biopharma