KNSA

Kiniksa Pharmaceuticals Inte$74.34 4.94%
Health CareUSCUSIP G52694109· EOD Jul 31, 2026◍ Confluence graph
Tracked 13F Holders
190
-146 QoQ
13F Value (tracked)
$2.0B
Insider Net · 180d
-$38.7M
0↑ 7↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)22 adding · 31 trimming
Insider net (180d)-$38.7M

Price & smart-money activity

$74.34 4.94%5Y +466.2%
$1.91$23.12$44.34$65.56$86.7720212022202320242025202623795384722314044345541464953494766121138
Hover for who · click for detailEnd-of-day closing prices52w $30.26 – $80.92

Who owns KNSA?

190 tracked 13F filers

190 tracked 13F filers disclose a position in KNSA as of the latest SEC 13F filings, a combined $2.0B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
#FundPosition valueSharesLast moveAs ofHistory
1FMR LLC
$328.6M
6.8M
+315%
Added · +5.2M sh
Q1 2026
2Rubric Capital Management LP
$180.6M
3.8M
+13%
Added · +421K sh
Q1 2026
3BAKER BROS. ADVISORS LP
$136.1M
2.8M
Held
Q1 2026
4TANG CAPITAL MANAGEMENT LLC
$108.8M
2.3M
Held
Q1 2026
5VANGUARD PORTFOLIO MANAGEMENT LLC
$85.0M
1.8M
First observed position
No prior filed position
Q1 2026
6VANGUARD CAPITAL MANAGEMENT LLC
$64.2M
1.3M
First observed position
No prior filed position
Q1 2026
7MORGAN STANLEY
$48.0M
998K
−27%
Reduced · −362K sh
Q1 2026
8D. E. Shaw & Co., Inc.
$46.2M
959K
−23%
Reduced · −282K sh
Q1 2026
9ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
$43.0M
893K
−16%
Reduced · −176K sh
Q1 2026
10DIMENSIONAL FUND ADVISORS LP
$39.1M
812K
+19%
Added · +128K sh
Q1 2026
11BANK OF AMERICA CORP /DE/
$35.4M
736K
+221%
Added · +507K sh
Q1 2026
12Qube Research & Technologies Ltd
$33.1M
687K
−10%
Reduced · −79K sh
Q1 2026
13Connor, Clark & Lunn Investment Management Ltd.
$31.3M
650K
−12%
Reduced · −90K sh
Q1 2026
14BNP PARIBAS FINANCIAL MARKETS
$31.2M
648K
−22%
Reduced · −184K sh
Q1 2026
15Point72 Asset Management, L.P.
$30.9M
641K
−20%
Reduced · −156K sh
Q1 2026
16Pictet Asset Management Holding SA
$30.0M
623K
−21%
Reduced · −164K sh
Q1 2026
17RICE HALL JAMES & ASSOCIATES, LLC
$29.3M
608K
+2.0%
Added · +12K sh
Q1 2026
18ALLIANCEBERNSTEIN L.P.
$24.7M
599K
+82%
Added · +271K sh
Q1 2026
19MILLENNIUM MANAGEMENT LLC
$27.2M
564K
−32%
Reduced · −261K sh
Q1 2026
20DEUTSCHE BANK AG\
$25.2M
524K
−17%
Reduced · −107K sh
Q1 2026
21Soleus Capital Management, L.P.
$25.1M
521K
−11%
Reduced · −66K sh
Q1 2026
22VICTORY CAPITAL MANAGEMENT INC
$24.4M
507K
−1.1%
Reduced · −6K sh
Q1 2026
23BALYASNY ASSET MANAGEMENT L.P.
$24.1M
500K
New
+500K sh
Q1 2026
24BlackRock, Inc.
$23.4M
487K
+9.0%
Added · +40K sh
Q1 2026
25JANUS HENDERSON GROUP PLC
$23.2M
481K
+214%
Added · +328K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is KNSA being bought or sold by institutions?

Last quarter, 4 funds opened a new position in KNSA and 18 added to an existing one, while 31 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
4
funds
Added
18
funds
Reduced
31
funds
Exited
0
funds

Funds that own KNSA also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT96 funds$161.8B
ELI LILLY & COLLY96 funds$45.0B
AMAZON.COM INCAMZN94 funds$121.9B
ALPHABET INC-CL AGOOGL94 funds$98.2B
JPMORGAN CHASE & COJPM92 funds$39.3B
BROADCOM INCAVGO91 funds$92.3B
CHEVRON CORPCVX91 funds$21.0B
NVIDIA CORPNVDA90 funds$226.3B
APPLE INCAAPL90 funds$168.6B
META PLATFORMS INC-CLASS AMETA90 funds$61.3B
COSTCO WHOLESALE CORPCOST90 funds$24.7B
MICRON TECHNOLOGY INCMU90 funds$21.5B

Ranked by how many of KNSA's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$38.7M
7 insiders
Net
-$38.7M
25 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 29, 2026Cole G BradleyDirectorSell (S)4K$299K
May 1, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)49K$2.6M
May 1, 2026Paolini John F.CHIEF MEDICAL OFFICERSell (S)37K$2.0M
May 1, 2026Paolini John F.CHIEF MEDICAL OFFICERSell (S)21K$1.1M
Apr 30, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)2K$116K
Apr 29, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)23K$1.2M
Apr 28, 2026Quart Barry DDirectorSell (S)13K$656K
Apr 28, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)75K$3.8M
Apr 28, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)114K$5.9M
Apr 28, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)244K$12.7M
Apr 28, 2026Patel Sanj KCHAIRMAN & CEO, DirectorSell (S)52K$2.8M
Apr 9, 2026Megna Michael RCHIEF ACCOUNTING OFFICERSell (S)7K$309K

Institutional ownership over time

36 funds-91 since Q3 2024
091182Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $40.0M

Recent filings

15 shown

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Connected entities for KNSA

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Ask your agent what changed in KNSA

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

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curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/KNSA/capital-change-brief"
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Use Arkolith's capital_change_brief for KNSA.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for KNSA. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.