Vault-13

KINIKSA PHARMACEUTICALS INTL KNSA

ORD SHS CL A · Common Stock · CUSIP G52694109

130 institutional holders
35,255,10835.3m shares reported held*
$658.1mreported value*

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($87.7k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $18.67. Options: 5 managers hold calls ($1.3m notional), 4 hold puts ($1.2m).

Trends to Q2 2024

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$500k$1m$1.5mQ3 23 calls: $0Q3 23 puts: $0Q3 23P/C —Q4 23 calls: $0Q4 23 puts: $0Q4 23P/C —Q1 24 calls: $0Q1 24 puts: $0Q1 24P/C —Q2 24 calls: $1.3mQ2 24 puts: $1.2mQ2 24P/C 0.93
Numbers
QuarterCallsPutsP/C
Q3 2023$0$0—
Q4 2023$0$0—
Q1 2024$0$0—
Q2 2024$1.3m$1.2m0.93

Biggest buyers

BlackRock Inc. New +4,591,136+4.6m
Fairmount Funds Management LLC New +3,204,841+3.2m
HHLR ADVISORS, LTD. New +3,144,556+3.1m
BAKER BROS. ADVISORS LP New +2,818,323+2.8m
Rubric Capital Management LP New +2,419,103+2.4m
BRAIDWELL LP New +2,058,303+2.1m
MORGAN STANLEY New +1,985,486+2.0m
STATE STREET CORP New +1,417,947+1.4m
Pictet Asset Management Holding SA New +1,303,716+1.3m
GEODE CAPITAL MANAGEMENT, LLC New +848,894+848.9k

Biggest sellers

None

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $1.2m62.2k shares
CITADEL ADVISORS LLC New $147.5k7.9k shares
SIMPLEX TRADING, LLC New $20.0k1.1k shares
GROUP ONE TRADING LLC New $13.1k700 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. New $00 shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $1.2m65.9k shares
CITADEL ADVISORS LLC New $16.8k900 shares
GROUP ONE TRADING LLC New $1.9k100 shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. New $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
FMR LLC 13G · institution +4.2 pts · filed 2026-05-06 14.8% +4.2 pts 6.8m≈ $434.1m 2026-05-06
Rubric Capital Management LP 13G · institution -1.9 pts · filed 2026-02-13 7.4% -1.9 pts 3.3m≈ $212.9m 2026-02-13
BAKER BROS. ADVISORS LP 13D · may seek influence filed 2026-05-26
Stated purposeItem 4 of Schedule 13D is supplemented and amended, as the case may be, as follows: On May 21, 2026, Kiniksa Pharmaceuticals International, plc (the "Issuer") and the Adviser on behalf of the Funds entered into a Deed of Waiver (the "Deed") according to which the Adviser on behalf of the Funds irrevocably and unconditionally waived the Funds' right to convert the Class A1 ordinary shares of the Issuer ("Class A1 ordinary shares") and Class B1 ordinary shares of the Issuer ("Class B1 ordinary shares") held by the Funds into Class A ordinary shares of the Issuer ("Class A ordinary shares") or Class B ordinary shares of the Issuer ("Class B ordinary shares") to the extent that, immediately prior to or following the exercise of such conversion, the Funds (together with their direct or indirec… Full filing
7.0% 3.3m≈ $208.1m 2026-05-26
BlackRock, Inc. 13G · institution +4.5 pts · filed 2026-07-29 5.5% +4.5 pts 2.5m≈ $162.1m 2026-07-29
TANG CAPITAL MANAGEMENT LLC 13G · passive investor new · filed 2025-04-04 5.2% new 2.2m≈ $139.3m 2025-04-04

Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)

Insider purchases and sales in Q2 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
505Q3 22: 0 buyingQ3 22: 0 sellingQ4 22: 0 buyingQ4 22: 2 sellingQ4 22Q1 23: 0 buyingQ1 23: 0 sellingQ2 23: 0 buyingQ2 23: 0 sellingQ2 23Q3 23: 0 buyingQ3 23: 1 sellingQ4 23: 0 buyingQ4 23: 2 sellingQ4 23Q1 24: 0 buyingQ1 24: 5 sellingQ2 24: 0 buyingQ2 24: 0 sellingQ2 24
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q3 20220—0——
Q4 20220—2$785.1k—
Q1 20230—0——
Q2 20230—0——
Q3 20230—1$562.2k$7.0k
Q4 20230—2$683.0k$683.0k
Q1 20240—5$3.3m$3.3m
Q2 20240—0——

None reported in Q2 2024.

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 BlackRock Inc. 0.00% of their portfolio New York, NY 4,591,1364.6m $85.7m $85.7m 0.00% New
2 Fairmount Funds Management LLC 6.76% of their portfolio WEST CONSHOHOCKEN, PA 3,204,8413.2m $59.8m $59.8m 6.76% New
3 HHLR ADVISORS, LTD. 1.45% of their portfolio GRAND CAYMAN, E9 3,144,5563.1m $58.7m $58.7m 1.45% New
4 BAKER BROS. ADVISORS LP 0.67% of their portfolio NEW YORK, NY 2,818,3232.8m $52.6m $52.6m 0.67% New
5 Rubric Capital Management LP 1.19% of their portfolio NEW YORK, NY 2,419,1032.4m $45.2m $45.2m 1.19% New
6 BRAIDWELL LP 1.21% of their portfolio STAMFORD, CT 2,058,3032.1m $38.4m $38.4m 1.21% New
7 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,985,4862.0m $37.1m $37.1m 0.00% New
8 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 1,417,9471.4m $26.5m $26.5m 0.00% New
9 Pictet Asset Management Holding SA 0.03% of their portfolio CAROUGE, V8 1,303,7161.3m $24.3m $24.3m 0.03% New
10 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 848,894848.9k $15.8m $15.8m 0.00% New
11 Nuveen Asset Management, LLC 0.00% of their portfolio CHICAGO, IL 766,411766.4k $14.3m $14.3m 0.00% New
12 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 664,040664.0k $12.4m $12.4m 0.00% New
13 Parkman Healthcare Partners LLC 1.65% of their portfolio STAMFORD, CT 647,142647.1k $12.1m $12.1m 1.65% New
14 TANG CAPITAL MANAGEMENT LLC 1.19% of their portfolio SAN DIEGO, CA 625,309625.3k $11.7m $11.7m 1.19% New
15 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 621,948621.9k $11.6m $11.6m 0.01% New
16 Driehaus Capital Management LLC 0.11% of their portfolio Chicago, IL 615,836615.8k $11.5m $11.5m 0.11% New
17 ArrowMark Colorado Holdings LLC 0.14% of their portfolio Denver, CO 608,868608.9k $11.4m $11.4m 0.14% New
18 RICE HALL JAMES & ASSOCIATES, LLC 0.67% of their portfolio San Diego, CA 600,630600.6k $11.2m $11.2m 0.67% New
19 Granahan Investment Management, LLC 0.42% of their portfolio WALTHAM, MA 568,735568.7k $10.6m $10.6m 0.42% New
20 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 292,933292.9k $5.5m $5.5m 0.00% New
21 Hudson Bay Capital Management LP 0.04% of their portfolio STAMFORD, CT 255,000255.0k $4.8m $4.8m 0.04% New
22 PEREGRINE CAPITAL MANAGEMENT LLC 0.13% of their portfolio MINNEAPOLIS, MN 239,156239.2k $4.5m $4.5m 0.13% New
23 Connor, Clark & Lunn Investment Management Ltd. 0.02% of their portfolio VANCOUVER, A1 231,079231.1k $4.3m $4.3m 0.02% New
24 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 214,847214.8k $4.0m $4.0m 0.00% New
25 Trexquant Investment LP 0.06% of their portfolio STAMFORD, CT 201,715201.7k $3.8m $3.8m 0.06% New
26 Soleus Capital Management, L.P. 0.33% of their portfolio GREENWICH, CT 200,000200.0k $3.7m $3.7m 0.33% New
27 ESSEX INVESTMENT MANAGEMENT CO LLC 0.70% of their portfolio BOSTON, MA 199,799199.8k $3.7m $3.7m 0.70% New
28 Hennion & Walsh Asset Management, Inc. 0.17% of their portfolio Parsippany, NJ 181,966182.0k $3.4m $3.4m 0.17% New
29 D. E. Shaw & Co., Inc. 0.00% of their portfolio New York, NY 169,648169.6k $3.2m $3.2m 0.00% New
30 Knights of Columbus Asset Advisors LLC 0.20% of their portfolio NEW HAVEN, CT 166,272166.3k $3.1m $3.1m 0.20% New
31 STATE OF WISCONSIN INVESTMENT BOARD 0.01% of their portfolio MADISON, WI 147,865147.9k $2.8m $2.8m 0.01% New
32 HUSSMAN STRATEGIC ADVISORS, INC. 0.76% of their portfolio ELLICOTT CITY, MD 147,000147.0k $2.7m $2.7m 0.76% New
33 PRUDENTIAL FINANCIAL INC 0.00% of their portfolio NEWARK, NJ 141,500141.5k $2.6m $2.6m 0.00% New
34 ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio BOSTON, MA 140,061140.1k $2.6m $2.6m 0.00% New
35 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 125,995126.0k $2.4m $2.4m 0.00% New
36 Linden Thomas Advisory Services, LLC 0.34% of their portfolio Charlotte, NC 118,302118.3k $2.2m $2.2m 0.34% New
37 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 115,143115.1k $2.1m $2.1m 0.00% New
38 ADAR1 Capital Management, LLC 0.43% of their portfolio AUSTIN, TX 114,309114.3k $2.1m $2.1m 0.43% New
39 OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.06% of their portfolio CHICAGO, IL 113,995114.0k $2.1m $2.1m 0.06% Not comparable
40 Lion Point Capital, LP 6.12% of their portfolio NEW YORK, NY 104,691104.7k $2.0m $2.0m 6.12% New
41 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 92,40892.4k $1.7m $1.7m 0.00% New
42 HighVista Strategies LLC 0.60% of their portfolio BOSTON, MA 88,68888.7k $1.7m $1.7m 0.60% New
43 Schonfeld Strategic Advisors LLC 0.01% of their portfolio NEW YORK, NY 88,39188.4k $1.7m $1.7m 0.01% New
44 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 87,00287.0k $1.6m $1.6m 0.00% New
45 LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio LOS ANGELES, CA 79,20079.2k $1.5m $1.5m 0.01% New
46 Swiss National Bank 0.00% of their portfolio ZURICH, V8 78,60078.6k $1.5m $1.5m 0.00% New
47 SG Americas Securities, LLC 0.01% of their portfolio NEW YORK, NY 69,22669.2k $1.3m $1.3m 0.01% New
48 MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 0.00% of their portfolio Boston, MA 68,43468.4k $1.3m $1.3m 0.00% New
49 PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio DES MOINES, IA 66,95167.0k $1.2m $1.2m 0.00% New
50 Legato Capital Management LLC 0.17% of their portfolio San Francisco, CA 66,91866.9k $1.2m $1.2m 0.17% New
51 FRANKLIN RESOURCES INC 0.00% of their portfolio San Mateo, CA 66,43366.4k $1.2m $1.2m 0.00% New
52 Allspring Global Investments Holdings, LLC 0.00% of their portfolio CHARLOTTE, NC 64,94364.9k $1.2m $1.2m 0.00% New
53 Rafferty Asset Management, LLC 0.00% of their portfolio New York, NY 60,61460.6k $1.1m $1.1m 0.00% New
54 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 57,23057.2k $1.1m $1.1m 0.00% New
55 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 56,06656.1k $1.0m $1.0m 0.00% New
56 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 54,82054.8k $1.0m $1.0m 0.00% New
57 Jackson Creek Investment Advisors LLC 0.37% of their portfolio CASTLE ROCK, CO 54,29654.3k $1.0m $1.0m 0.37% New
58 MARTINGALE ASSET MANAGEMENT L P 0.02% of their portfolio BOSTON, MA 45,37745.4k $847.2k $847.2k 0.02% New
59 Legal & General Group Plc 0.00% of their portfolio London, X0 43,90243.9k $820.0k $820.0k 0.00% New
60 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 38,97639.0k $727.7k $727.7k 0.00% New
61 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 38,38938.4k $716.7k $716.7k 0.00% New
62 M&T Bank Corp 0.00% of their portfolio BUFFALO, NY 36,38936.4k $679.6k $679.6k 0.00% New
63 Advantage Alpha Capital Partners LP 0.13% of their portfolio SAN FRANCISCO, CA 31,25831.3k $583.6k $583.6k 0.13% New
64 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 30,60030.6k $571.3k $571.3k 0.00% New
65 Fisher Asset Management, LLC 0.00% of their portfolio PLANO, TX 30,22530.2k $564.3k $564.3k 0.00% New
66 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 29,63629.6k $553.3k $553.3k 0.00% New
67 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 29,22629.2k $545.6k $545.6k 0.00% New
68 Y-Intercept (Hong Kong) Ltd 0.03% of their portfolio HONG KONG, K3 29,09329.1k $543.2k $543.2k 0.03% New
69 Janney Montgomery Scott LLC 0.00% of their portfolio PHILADELPHIA, PA 28,23128.2k $525.0k $525.0k 0.00% New
70 VOLORIDGE INVESTMENT MANAGEMENT, LLC 0.00% of their portfolio JUPITER, FL 25,78625.8k $481.4k $481.4k 0.00% New
71 Squarepoint Ops LLC 0.00% of their portfolio NEW YORK, NY 24,84524.8k $463.9k $463.9k 0.00% New
72 BANTAMAC CAPITAL, LLC 0.24% of their portfolio CHICAGO, IL 21,87521.9k $408.4k $408.4k 0.24% New
73 ALGERT GLOBAL LLC 0.01% of their portfolio SAN FRANCISCO, CA 18,60318.6k $347.3k $347.3k 0.01% New
74 VIRTUS ADVISERS, LLC 0.16% of their portfolio HARTFORD, CT 17,55617.6k $327.8k $327.8k 0.16% New
75 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 17,34317.3k $323.8k $323.8k 0.00% New
76 XTX Topco Ltd 0.03% of their portfolio LONDON, X0 16,82816.8k $314.2k $314.2k 0.03% New
77 MERCER GLOBAL ADVISORS INC /ADV 0.00% of their portfolio DENVER, CO 16,59016.6k $309.7k $309.7k 0.00% New
78 Corebridge Financial, Inc. 0.00% of their portfolio HOUSTON, TX 16,37216.4k $305.7k $305.7k 0.00% First filing
79 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 16,27016.3k $303.8k $303.8k 0.00% First filing
80 Robeco Institutional Asset Management B.V. 0.00% of their portfolio ROTTERDAM, P7 15,98216.0k $298.4k $298.4k 0.00% New
81 Nebula Research & Development LLC 0.05% of their portfolio New York, NY 15,07015.1k $281.4k $281.4k 0.05% New
82 PERSONAL CFO SOLUTIONS, LLC 0.04% of their portfolio CHESTER, NJ 14,23814.2k $265.8k $265.8k 0.04% New
83 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 14,13314.1k $263.9k $263.9k 0.00% New
84 QRG CAPITAL MANAGEMENT, INC. 0.00% of their portfolio BERWYN, PA 14,03314.0k $261.9k $261.9k 0.00% New
85 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 12,77412.8k $238.5k $238.5k 0.00% New
86 Engineers Gate Manager LP 0.01% of their portfolio NEW YORK, NY 12,56912.6k $234.7k $234.7k 0.01% New
87 Campbell & CO Investment Adviser LLC 0.02% of their portfolio BALTIMORE, MD 12,51012.5k $233.6k $233.6k 0.02% New
88 JANUS HENDERSON GROUP PLC 0.00% of their portfolio LONDON, X0 12,17912.2k $227.5k $227.5k 0.00% New
89 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 12,16812.2k $227.2k $227.2k 0.00% New
90 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 11,88211.9k $222.0k $222.0k 0.00% New
91 SHERBROOKE PARK ADVISERS LLC 0.04% of their portfolio WHITE PLAINS, NY 11,73311.7k $219.1k $219.1k 0.04% New
92 PROFUND ADVISORS LLC 0.01% of their portfolio BETHESDA, MD 11,50411.5k $214.8k $214.8k 0.01% New
93 ARIZONA STATE RETIREMENT SYSTEM 0.00% of their portfolio PHOENIX, AZ 11,19211.2k $209.0k $209.0k 0.00% New
94 Jump Financial, LLC 0.00% of their portfolio Chicago, IL 11,16311.2k $208.4k $208.4k 0.00% New
95 HRT FINANCIAL LP 0.00% of their portfolio NEW YORK, NY 11,07511.1k $206.0k $206.0k 0.00% New
96 Aquatic Capital Management LLC 0.01% of their portfolio CHICAGO, IL 11,00011.0k $205.4k $205.4k 0.01% New
97 Sound View Wealth Advisors Group, LLC 0.02% of their portfolio SAVANNAH, GA 10,64210.6k $198.7k $198.7k 0.02% New
98 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 10,61010.6k $198.1k $198.1k 0.00% New
99 EntryPoint Capital, LLC 0.09% of their portfolio NEW YORK, NY 10,07610.1k $188.1k $188.1k 0.09% New
100 Lynx1 Capital Management LP 0.06% of their portfolio DORADO, PR 9,5009.5k $177.4k $177.4k 0.06% New