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Kiniksa Pharmaceuticals Ownership | Who Owns Kiniksa Pharmaceuticals?

OverviewForecastRevenueFinancialsChartTranscripts

Kiniksa Pharmaceuticals Ownership Summary

Kiniksa Pharmaceuticals is owned by 54.84% institutional investors, 3.82% insiders, and 41.34% retail investors. Harbor capital advisors is the largest institutional shareholder, holding 0.14% of KNSA shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 1.72% of its assets in Kiniksa Pharmaceuticals shares.

KNSA Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockKiniksa Pharmaceuticals54.84%3.82%41.34%
SectorHealthcare Stocks 279.19%10.58%-189.76%
IndustryBiotech Stocks 63.97%10.68%25.35%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Harbor capital advisors98.09K0.14%$1.94M
Birchview capital, lp30.00K0.04%$593.40K
Brown brothers harriman---
Geode capital management---
Voya investment management---
Arrowmark colorado---
Cerity partners---
National bank of canada /fi/---
Prudential financial---
Woodline partners lp---

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Birchview capital, lp30.00K0.48%$593.40K
Harbor capital advisors98.09K0.08%$1.94M
Brown brothers harriman---
Geode capital management---
Voya investment management---
Arrowmark colorado---
Cerity partners---
National bank of canada /fi/---
Prudential financial---
Woodline partners lp---

Top Buyers

HolderShares% AssetsChange
Harbor capital advisors98.09K0.08%550.00
Birchview capital, lp30.00K0.48%-
Srs capital advisors---1.00
Pnc financial services group---8.00
Riggs asset managment---30.00

Top Sellers

HolderShares% AssetsChange
Blackrock---4.19M
Fairmount funds management---3.20M
Vanguard group---2.98M
Baker bros. advisors lp---2.81M
Rubric capital management lp---2.20M

Sold Out

HolderChange
Srs capital advisors-1.00
Pnc financial services group-8.00
Riggs asset managment-30.00
Nelson, van denburg & campbell wealth management group-34.00
Van hulzen asset management-50.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Mar 31, 20251789.20%39,838,0562.13%541.84%9521.79%55-5.17%
Dec 31, 20241-50.00%98,093-23.09%-432.56%1---
Sep 30, 20242-60.00%127,54390.97%-1987.95%1-66.67%--
Jun 30, 20245-96.88%66,788-99.83%-0.00%3-96.47%--100.00%
Mar 31, 20241606.67%38,944,11213.77%552.33%8523.19%48-14.29%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard US Total Market Shares ETF1.25M1.72%-
Vanguard Total Stock Mkt Idx Inv1.22M1.67%62.20K
iShares Russell 2000 ETF992.30K1.36%486.00
Pictet Biotech965.39K1.36%965.39K
Vanguard Small Cap Index950.58K1.30%8.10K
Pictet-Biotech P USD626.05K0.86%-24.50K
Vanguard Institutional Extnd Mkt Idx Tr567.21K0.80%795.00
Vanguard Small Cap Growth Index Inv527.99K0.72%363.00
Fidelity Small Cap Growth491.51K0.67%-
Pictet-Global Megatrend Sel I USD416.62K0.57%-5.89K

Recent Insider Transactions

DateNameRoleActivityValue
Jun 03, 2025Megna Michael R CHIEF ACCOUNTING OFFICERSell$437.32K
Jun 03, 2025Moat Ross CHIEF COMMERCIAL OFFICERSell$800.78K
Jun 03, 2025Ragosa Mark CHIEF FINANCIAL OFFICERSell$527.01K
May 28, 2025Patel Sanj K CHAIRMAN & CEOSell$1.70M
May 27, 2025Patel Sanj K CHAIRMAN & CEOSell$521.75K

Insider Transactions Trends

DateBuySell
2025 Q2-22
2025 Q1-8
2024 Q4-9
2024 Q3-14
2024 Q2--

KNSA Ownership FAQ

Who Owns Kiniksa Pharmaceuticals?

Kiniksa Pharmaceuticals shareholders are primarily institutional investors at 54.84%, followed by 3.82% insiders and 41.34% retail investors. The average institutional ownership in Kiniksa Pharmaceuticals's industry, Biotech Stocks , is 63.97%, which Kiniksa Pharmaceuticals falls below.

Who owns the most shares of Kiniksa Pharmaceuticals?

Kiniksa Pharmaceuticals’s largest shareholders are Harbor capital advisors (98.09K shares, 0.14%), Birchview capital, lp (30K shares, 0.04%), and Brown brothers harriman (0 shares, 0%). Together, they hold 0.18% of Kiniksa Pharmaceuticals’s total shares outstanding.

Does Blackrock own Kiniksa Pharmaceuticals?

BlackRock is not among the top 10 institutional shareholders of Kiniksa Pharmaceuticals.

Who is Kiniksa Pharmaceuticals’s biggest shareholder by percentage of total assets invested?

Birchview capital, lp is Kiniksa Pharmaceuticals’s biggest shareholder by percentage of total assets invested, with 0.48% of its assets in 30K Kiniksa Pharmaceuticals shares, valued at 593.4K$.

Who is the top mutual fund holder of Kiniksa Pharmaceuticals shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Kiniksa Pharmaceuticals shares, with 1.72% of its total shares outstanding invested in 1.25M Kiniksa Pharmaceuticals shares.

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