William Blair Investment Management
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William Blair Investment Management’s Krystal Biotech KRYS Stock Holding History

William Blair Investment Management’s Portfolio KRYS Stock Details KRYS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$105M Buy
407,178
+30,838
+8% +$8.21M 0.35% 83
2025
Q4 		$92.8M Buy
376,340
+227,038
+152% +$47.8M 0.26% 104
2025
Q3 		$26.4M Buy
149,302
+58,203
+64% +$8.71M 0.07% 247
2025
Q2 		$12.5M Buy
+91,099
New +$13.4M 0.03% 319

Other funds holding KRYS

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $10.2B AUM 149.19% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
SCM
Soleus Capital Management Greenwich, Connecticut $2.47B AUM 115.63% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
RG
Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

William Blair Investment Management's KRYS Position: Q1 2026 in Review

William Blair Investment Management increased its Krystal Biotech (KRYS) stake by 8.2% in Q1 2026, buying an estimated $8.21M and bringing the position to 407,178 shares worth $105M. The position accounts for 0.35% of the portfolio, ranked #83.

William Blair Investment Management first reported a position in KRYS in Q2 2025 and has held it in 4 quarters since. 367 funds tracked by Wall St. Rank hold KRYS as of Q1 2026.

  • William Blair Investment Management held 407,178 shares of Krystal Biotech worth $105M as of Q1 2026.
  • William Blair Investment Management bought 30,838 Krystal Biotech shares in Q1 2026, an estimated $8.21M.
  • Krystal Biotech made up 0.35% of William Blair Investment Management's portfolio in Q1 2026, its #83 holding.
  • William Blair Investment Management first reported a position in Krystal Biotech in Q2 2025 and has held it in 4 quarters since.
  • 367 funds tracked by Wall St. Rank held Krystal Biotech as of Q1 2026.

Based on William Blair Investment Management's 13F filing for Q1 2026, filed 8 May 2026.