Wellington Management Group
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Wellington Management Group’s Kiniksa Pharmaceuticals KNSA Stock Holding History

Wellington Management Group’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
2025
Q3 		– Sell
-113,990
Closed -$3.15M – 2040
2025
Q2 		$3.15M Buy
113,990
+22,958
+25% +$584K ﹤0.01% 1472
2025
Q1 		$2.02M Buy
91,032
+21,219
+30% +$437K ﹤0.01% 1555
2024
Q4 		$1.38M Buy
69,813
+22,096
+46% +$504K ﹤0.01% 1655
2024
Q3 		$1.19M Buy
+47,717
New +$1.16M ﹤0.01% 1676
2024
Q2 		– Sell
-84,493
Closed -$1.67M – 1929
2024
Q1 		$1.67M Buy
+84,493
New +$1.65M ﹤0.01% 1561
2023
Q2 		– Sell
-243,151
Closed -$2.62M – 1911
2023
Q1 		$2.62M Sell
243,151
-5,812
-2% -$76.6K ﹤0.01% 1444
2022
Q4 		$3.73M Sell
248,963
-18,803
-7% -$274K ﹤0.01% 1348
2022
Q3 		$3.44M Sell
267,766
-9,618
-3% -$110K ﹤0.01% 1384
2022
Q2 		$2.69M Hold
277,384
– – ﹤0.01% 1485
2022
Q1 		$2.76M Sell
277,384
-23,257
-8% -$246K ﹤0.01% 1531
2021
Q4 		$3.54M Sell
300,641
-102,559
-25% -$1.26M ﹤0.01% 1551
2021
Q3 		$4.59M Hold
403,200
– – ﹤0.01% 1528
2021
Q2 		$5.62M Buy
403,200
+303,100
+303% +$4.6M ﹤0.01% 1476
2021
Q1 		$1.85M Hold
100,100
– – ﹤0.01% 1639
2020
Q4 		$1.77M Buy
100,100
+20,000
+25% +$351K ﹤0.01% 1511
2020
Q3 		$1.23M Buy
+80,100
New +$1.5M ﹤0.01% 1504
2018
Q3 		– Sell
-33,719
Closed -$585K – 2264
2018
Q2 		$585K Buy
+33,719
New +$610K ﹤0.01% 1994

Other funds holding KNSA

RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BBA
Baker Bros. Advisors New York $20B AUM 154.41% 1-Year Est. Return
TCM
Tang Capital Management San Diego, California $2.2B AUM 156.35% 1-Year Est. Return
FFM
Fairmount Funds Management West Conshohocken, Pennsylvania $1.51B AUM 546.08% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Wellington Management Group's KNSA Position: Q3 2025 in Review

Wellington Management Group sold out of Kiniksa Pharmaceuticals (KNSA) in Q3 2025, closing a stake of 113,990 shares — an estimated $3.15M sold.

Wellington Management Group first reported a position in KNSA in Q2 2018 and held it in 17 quarters. The position peaked at $5.62M in Q2 2021. 204 funds tracked by Wall St. Rank hold KNSA as of Q3 2025.

  • Wellington Management Group reported no remaining Kiniksa Pharmaceuticals position as of Q3 2025 after selling out during the quarter.
  • Wellington Management Group sold 113,990 Kiniksa Pharmaceuticals shares in Q3 2025, an estimated $3.15M.
  • Wellington Management Group first reported a position in Kiniksa Pharmaceuticals in Q2 2018 and held it in 17 quarters.
  • Wellington Management Group's Kiniksa Pharmaceuticals position peaked at $5.62M in Q2 2021.
  • 204 funds tracked by Wall St. Rank held Kiniksa Pharmaceuticals as of Q3 2025.

Based on Wellington Management Group's 13F filing for Q3 2025, filed 14 Nov 2025.