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Granahan Investment Management’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Granahan Investment Management’s Portfolio KNSA Stock Details KNSA Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$10.1M Sell
209,256
-106,957
-34% -$4.74M 0.49% 59
2025
Q4 		$13M Buy
316,213
+32,642
+12% +$1.31M 0.56% 51
2025
Q3 		$11M Sell
283,571
-27,421
-9% -$891K 0.45% 57
2025
Q2 		$8.61M Sell
310,992
-50,902
-14% -$1.3M 0.35% 71
2025
Q1 		$8.04M Sell
361,894
-101,216
-22% -$2.08M 0.4% 70
2024
Q4 		$9.16M Sell
463,110
-44,259
-9% -$1.01M 0.38% 73
2024
Q3 		$12.7M Sell
507,369
-61,366
-11% -$1.49M 0.5% 62
2024
Q2 		$10.6M Sell
568,735
-79,352
-12% -$1.49M 0.42% 76
2024
Q1 		$12.8M Sell
648,087
-74,301
-10% -$1.45M 0.45% 67
2023
Q4 		$12.7M Buy
722,388
+188,174
+35% +$3.09M 0.42% 75
2023
Q3 		$9.28M Sell
534,214
-2,215
-0.4% -$37.3K 0.33% 90
2023
Q2 		$7.55M Sell
536,429
-38,511
-7% -$515K 0.23% 106
2023
Q1 		$6.19M Buy
574,940
+70,747
+14% +$932K 0.19% 113
2022
Q4 		$7.55M Sell
504,193
-48,157
-9% -$701K 0.23% 108
2022
Q3 		$7.09M Buy
552,350
+132,355
+32% +$1.51M 0.23% 110
2022
Q2 		$4.07M Sell
419,995
-322,163
-43% -$3.01M 0.14% 133
2022
Q1 		$7.38M Buy
742,158
+142,636
+24% +$1.51M 0.18% 113
2021
Q4 		$7.06M Buy
599,522
+193,688
+48% +$2.38M 0.15% 133
2021
Q3 		$4.62M Buy
+405,834
New +$5.29M 0.09% 156

Other funds holding KNSA

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $9.44B AUM 68.42% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $17.4B AUM 131.5% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $1.97B AUM 125.1% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $185B AUM 39.58% 1-Year Est. Return

Granahan Investment Management's KNSA Position: Q1 2026 in Review

Granahan Investment Management reduced its Kiniksa Pharmaceuticals (KNSA) stake by 34% in Q1 2026, selling an estimated $4.74M and leaving 209,256 shares worth $10.1M. The position accounts for 0.49% of the portfolio, ranked #59.

Granahan Investment Management first reported a position in KNSA in Q3 2021 and has held it in 19 quarters since. The position peaked at $13M in Q4 2025. 228 funds tracked by Wall St. Rank hold KNSA as of Q1 2026.

  • Granahan Investment Management held 209,256 shares of Kiniksa Pharmaceuticals worth $10.1M as of Q1 2026.
  • Granahan Investment Management sold 106,957 Kiniksa Pharmaceuticals shares in Q1 2026, an estimated $4.74M.
  • Kiniksa Pharmaceuticals made up 0.49% of Granahan Investment Management's portfolio in Q1 2026, its #59 holding.
  • Granahan Investment Management first reported a position in Kiniksa Pharmaceuticals in Q3 2021 and has held it in 19 quarters since.
  • Granahan Investment Management's Kiniksa Pharmaceuticals position peaked at $13M in Q4 2025.
  • 228 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q1 2026.

Based on Granahan Investment Management's 13F filing for Q1 2026, filed 15 May 2026.