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Kiniksa Pharmaceuticals International, plc 13F holders

265 funds reported a position in Kiniksa Pharmaceuticals International, plc in their 13F for the quarter ended 30 June 2026, together 46.9 million shares worth $2.99 billion. Against the quarter before, 63 opened a position, 86 added, 81 trimmed and 26 sold out; together they bought a net 1.5 million shares. The largest holders: FMR LLC, Rubric Capital Management LP and Baker Bros. Advisors LP.

Funds holding265+39 on Q1 2026
Shares they held46.9Mworth $2.99 billion
Net bought on the quarter1.5M sharesabout $93.0 million at the funds' values
Funds buying to selling149 to 107opened or added, to cut or sold
Opened 63Added 86Held 33Trimmed 81Sold out 26
Opened: 63 fundsAdded: 86 fundsHeld: 33 fundsTrimmed: 81 fundsSold out: 26 funds

What each fund did in KNSA against its 13F for the quarter before; a change under 0.1% of a holding counts as held

Q3 2024: 174 funds, 39.7 million shares174Q3 2024Q4 2024: 158 funds, 39.0 million shares158Q4 2024Q1 2025: 174 funds, 40.0 million shares174Q1 2025Q2 2025: 187 funds, 40.0 million shares187Q2 2025Q3 2025: 202 funds, 41.0 million shares202Q3 2025Q4 2025: 223 funds, 43.0 million shares223Q4 2025Q1 2026: 226 funds, 45.4 million shares226Q1 2026Q2 2026: 265 funds, 46.9 million shares265Q2 2026

Funds reporting a position in KNSA in their 13F, each quarter; hover a bar for the shares they held

Filed so far for the quarter to 30 September 2026

3,241 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 57 reported a position in Kiniksa Pharmaceuticals International, plc: 13 opened one, 17 added, 15 trimmed and 2 sold out, a net 40,025 shares bought.

FundChange in sharesShares nowStatusFiling
Sowell Financial Services LLC+40,73540,735new13F
Essex Investment Management Co. LLC-39,361202,021trimmed13F
Fonville Wealth Management LLC+19,80319,803new13F
Robeco Institutional Asset Management B.V.+14,02514,025new13F
B. Riley Wealth Advisors, Inc.+10,23210,232new13F
DekaBank Deutsche Girozentrale+8,9928,992new13F
City Center Advisors, LLC+5,2715,271new13F
CoreCap Advisors, LLC+4,6204,620new13F
Virginia Retirement Systems ET Al+4,0008,000added13F
Mirae Asset Global Investments Co., Ltd.-3,5142,468trimmed13F
State of Wyoming-3,3137,013trimmed13F
Chicago Partners Investment Group LLC+2,9462,946new13F
Bailard, Inc.+2,9762,976new13F
Vise Technologies, Inc.+1,5129,177added13F
PSP Research LLC-1,5003,500trimmed13F
China Universal Asset Management Co., Ltd.+1,4428,811added13F
Sterling Capital Management LLC+1,3581,507added13F
Park Avenue Securities LLC+1,09515,829added13F
Wealth Enhancement Advisory Services, LLC+81421,313added13F
TD Waterhouse Canada Inc.+65217,343added13F
Mutual of America Capital Management LLC-59740,907trimmed13F
KBC Group NV-5441,450trimmed13F
Ami Asset Management Corp.-51715,341trimmed13F
Linden Thomas Advisory Services, LLC-40254,401trimmed13F
ProShare Advisors LLC+3387,408added13F

The largest moves in the name among the funds that have filed, against each fund's previous 13F.

The well-known funds

Of the 44 funds followed here, 7 reported a position in Kiniksa Pharmaceuticals International, plc in a 13F for the quarter ended 30 June 2026. The largest: FMR LLC, 7.0 million shares worth $445.8 million, 0.0% of its reported book. New this quarter: Renaissance Technologies. In the quarter, 5 funds added or opened a position and 2 trimmed or sold out; together they bought a net 30,558 shares, about $2.0 million at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.

FundSharesValueOf its bookChange on the quarterStatusQuarter endedFiling
FMR LLC6,971,361$445.8 million0.0%+147,661added30 June 202613F
Point72 Asset Management659,493$42.2 million0.1%+18,535added30 June 202613F
Geode Capital Management604,180$38.6 million0.0%+559,860added30 June 202613F
Two Sigma Investments561,480$35.9 million0.0%+140,566added30 June 202613F
Millennium Management93,364$6.0 million0.0%-471,056trimmed30 June 202613F
Renaissance Technologies68,077$4.4 million0.0%+68,077new30 June 202613F
Citadel Advisors41,665$2.7 million0.0%-433,085trimmed30 June 202613F
Value is what the fund reported.
Read moreChange is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.

The largest holders

FundSharesShare of allValueOf its bookChange in sharesFiling
FMR LLC6,971,36114.85%$445.8 million0.02%+147,66113F
Rubric Capital Management LP3,999,8008.52%$255.8 million2.35%+249,80013F
Baker Bros. Advisors LP2,834,6436.04%$181.3 million0.91%+8,39713F
BlackRock, Inc.2,739,6155.84%$175.2 million0.00%+2,252,87813F
Tang Capital Management LLC2,259,8894.81%$144.5 million6.60%no change13F
Vanguard Portfolio Management LLC1,911,3354.07%$122.2 million0.01%+145,06713F
Vanguard Capital Management LLC1,360,8402.90%$87.0 million0.00%+27,74713F
Morgan Stanley1,011,1432.15%$64.7 million0.00%+13,35713F
Arrowstreet Capital, Limited Partnership957,5142.04%$61.2 million0.03%+64,84813F
Spruce Street Capital LP918,0701.96%$58.7 million11.52%+157,00713F
Dimensional Fund Advisors LP874,7861.86%$55.9 million0.01%+62,86413F
Invesco Ltd.772,8061.65%$49.4 million0.00%+745,15013F
Driehaus Capital Management LLC718,1991.53%$45.9 million0.27%+106,80113F
State Street Corp.704,1941.50%$45.0 million0.00%+627,56113F
Acadian Asset Management LLC679,0831.45%$43.4 million0.05%-657,23013F
Point72 Asset Management, L.P.659,4931.41%$42.2 million0.07%+18,53513F
Rice Hall James & Associates, LLC624,9281.33%$40.0 million1.95%+16,51213F
Pictet Asset Management Holding SA608,6501.30%$38.9 million0.04%-14,63813F
Geode Capital Management, LLC604,1801.29%$38.6 million0.00%+559,86013F
Jupiter Topco LLC586,1771.25%$37.5 million0.01%first 13F13F
Connor, Clark & Lunn Investment Management Ltd.572,5981.22%$36.6 million0.07%-77,03113F
D. E. Shaw & Co., Inc.569,7561.21%$36.4 million0.02%-389,50113F
Two Sigma Investments, LP561,4801.20%$35.9 million0.03%+140,56613F
Victory Capital Management Inc.504,8531.08%$32.3 million0.02%-1,66813F
SG Americas Securities, LLC504,0011.07%$32.2 million0.02%-136,17813F
BNP Paribas Financial Markets437,1920.93%$28.0 million0.01%-210,53913F
Massachusetts Financial Services Co.431,3240.92%$27.6 million0.01%-6,67813F
Orbimed Advisors LLC420,6000.90%$26.9 million0.51%+240,00113F
AllianceBernstein L.P.556,1511.18%$26.8 million0.01%-42,73713F
Bank of America Corp.413,4110.88%$26.4 million0.00%-322,52913F
Oberweis Asset Management Inc.413,0340.88%$26.4 million0.55%+94,40013F
Aberdeen Group plc403,4850.86%$25.8 million0.04%+29,85113F
Fisher Asset Management, LLC398,2660.85%$25.5 million0.01%-30,70613F
Deutsche Bank AG387,6060.83%$24.8 million0.01%-136,08513F
AQR Capital Management LLC375,0390.80%$24.0 million0.01%-3,65813F
Penn Capital Management Company, LLC368,1140.78%$23.6 million1.50%+66,12113F
Northern Trust Corp.315,2460.67%$20.2 million0.00%+278,32213F
Balyasny Asset Management L.P.309,6820.66%$19.8 million0.04%-190,11013F
Qube Research & Technologies Ltd304,0800.65%$19.4 million0.02%-382,77313F
New York State Common Retirement Fund272,5790.58%$17.4 million0.02%+62,96213F
Nomura Holdings Inc.270,7240.58%$17.3 million0.07%-72,21513F
Soleus Capital Management, L.P.246,3530.52%$15.8 million0.54%-275,00013F
Essex Investment Management Co. LLC241,3820.51%$15.4 million2.02%-7,89613F
Bank of New York Mellon Corp232,5310.50%$14.9 million0.00%+215,14313F
ArrowMark Colorado Holdings LLC215,5460.46%$13.8 million0.57%-101,41013F
Stempoint Capital LP209,2340.45%$13.4 million2.31%new13F
Goldman Sachs Group Inc.191,3640.41%$12.2 million0.00%+16,46313F
Sei Investments Co.188,5650.40%$12.1 million0.01%-95,44013F
Braidwell LP183,8220.39%$11.8 million0.45%-88,70013F
Castleark Management LLC174,0320.37%$11.1 million0.30%-7,48013F
The 50 largest of the 265 funds that reported a position in KNSA in their 13F for the quarter ended 30 June 2026, by the value each reported.
Read moreShare of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?

Options the funds reported on KNSA

FundOptionShares under the optionsValue of those sharesQuarter endedFiling
Citadel AdvisorsCalls14,100$901,69530 June 202613F
Citadel AdvisorsPuts5,700$364,51530 June 202613F
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
Read moreThey are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.

Schedule 13D and 13G filed on the name, last twelve months

FiledScheduleWhoHoldingOf the classEvent dateRule or purposeFiling
29 July 202613GBlackRock, Inc. and 1 other2.5 million5.5%30 June 2026passive, institutional (13d-1(b))EDGAR
26 May 202613D/ABaker Bros. Advisors LP and 4 others3.3 million7.0%21 May 2026Item 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")EDGAR
6 May 202613G/AFMR LLC and 3 others6.8 million14.8%31 March 2026passive, institutional (13d-1(b))EDGAR
27 March 202613G/AThe Vanguard Group and 1 other00.0%13 March 2026passive, institutional (13d-1(b))EDGAR
6 March 202613GFMR LLC and 3 others4.9 million10.6%27 February 2026passive, institutional (13d-1(b))EDGAR
13 February 202613G/ARubric Capital Management LP and 3 others3.3 million7.4%31 December 2025passive, institutional (13d-1(b))EDGAR
31 October 202513G/AThe Vanguard Group and 1 other3.1 million7.0%30 September 2025passive, institutional (13d-1(b))EDGAR
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
Read moreAmendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13G

Fails to deliver

Settlement dateShares failedPriceFile
22 September 20262$78.13SEC
17 September 20269,617$77.62SEC
9 September 20261$77.09SEC
8 September 20261$77.91SEC
4 September 20261$80.47SEC
3 September 2026178$79.89SEC
28 August 20262,050$79.80SEC
27 August 20266$78.68SEC
26 August 20266$80.20SEC
25 August 20265$79.38SEC
20 August 20269$80.80SEC
18 August 202689$79.18SEC
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.
Read moreLargest in the window: 9,617 on 17 September 2026. A fail is an operational fact about settlement, not a position.