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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
Q2 		$9.7M Sell
151,725
-57,531
-27% -$2.98M 0.35% 66
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 $2.3T AUM 54.33% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
SSC
Spruce Street Capital New York $510M AUM

Granahan Investment Management's KNSA Position: Q2 2026 in Review

Granahan Investment Management reduced its Kiniksa Pharmaceuticals (KNSA) stake by 27% in Q2 2026, selling an estimated $2.98M and leaving 151,725 shares worth $9.7M. The position accounts for 0.35% of the portfolio, ranked #66.

Granahan Investment Management first reported a position in KNSA in Q3 2021 and has held it in 20 quarters since. The position peaked at $13M in Q4 2025. 267 funds tracked by Wall St. Rank hold KNSA as of Q2 2026.

  • Granahan Investment Management held 151,725 shares of Kiniksa Pharmaceuticals worth $9.7M as of Q2 2026.
  • Granahan Investment Management sold 57,531 Kiniksa Pharmaceuticals shares in Q2 2026, an estimated $2.98M.
  • Kiniksa Pharmaceuticals made up 0.35% of Granahan Investment Management's portfolio in Q2 2026, its #66 holding.
  • Granahan Investment Management first reported a position in Kiniksa Pharmaceuticals in Q3 2021 and has held it in 20 quarters since.
  • Granahan Investment Management's Kiniksa Pharmaceuticals position peaked at $13M in Q4 2025.
  • 267 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q2 2026.

Based on Granahan Investment Management's 13F filing for Q2 2026, filed 14 Aug 2026.