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X4 Pharmaceuticals, Inc

XFOR
Exchange
Nasdaq
Industry
Biological Products, (No Diagnostic Substances)
SEC CIK
0001501697

In the last 90 days, X4 Pharmaceuticals, Inc insiders filed 0 open-market purchases and 3 sales; 89 institutions reported holding it in 13F filings for Q2 2026, worth $463.0M in total; no superinvestor holds it.

13F holders, Q2 2023

Institutional positions in X4 Pharmaceuticals, Inc as of Jun 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
96
+37 vs. Q1 2023
Shares held
112.9M
+51.5M (+83.7%) vs. Q1 2023
Total value
$219.1M
+$165.5M (+308.6%) vs. Q1 2023
New holders
45
27 more added
Sold out
8
11 more reduced

Compare with Q1 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting XFOR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2023: 96 institutions
Q1 2021: 61 institutionsQ2 2021: 63 institutionsQ3 2021: 52 institutionsQ4 2021: 52 institutionsQ1 2022: 56 institutionsQ2 2022: 51 institutionsQ3 2022: 59 institutionsQ4 2022: 54 institutionsQ1 2023: 59 institutionsQ2 2023: 96 institutionsQ3 2023: 91 institutionsQ4 2023: 93 institutionsQ1 2024: 98 institutionsQ2 2024: 99 institutionsQ3 2024: 98 institutionsQ4 2024: 90 institutionsQ1 2025: 94 institutionsQ2 2025: 52 institutionsQ3 2025: 42 institutionsQ4 2025: 79 institutionsQ1 2026: 84 institutionsQ2 2026: 89 institutions
Value heldQ2 2023: $219.1M
Q1 2021: $138.7MQ2 2021: $107.8MQ3 2021: $85.7MQ4 2021: $40.2MQ1 2022: $28.6MQ2 2022: $15.5MQ3 2022: $66.9MQ4 2022: $60.2MQ1 2023: $53.6MQ2 2023: $219.1MQ3 2023: $122.6MQ4 2023: $81.2MQ1 2024: $143.2MQ2 2024: $58.9MQ3 2024: $67.3MQ4 2024: $73.2MQ1 2025: $23.3MQ2 2025: $5.33MQ3 2025: $55.3MQ4 2025: $357.7MQ1 2026: $388.1MQ2 2026: $463.0M
Institutions holding XFOR and their total value by quarter
QuarterHoldersValue
Q2 202689$463.0M
Q1 202684$388.1M
Q4 202579$357.7M
Q3 202542$55.3M
Q2 202552$5.33M
Q1 202594$23.3M
Q4 202490$73.2M
Q3 202498$67.3M
Q2 202499$58.9M
Q1 202498$143.2M
Q4 202393$81.2M
Q3 202391$122.6M
Q2 202396$219.1M
Q1 202359$53.6M
Q4 202254$60.2M
Q3 202259$66.9M
Q2 202251$15.5M
Q1 202256$28.6M
Q4 202152$40.2M
Q3 202152$85.7M
Q2 202163$107.8M
Q1 202161$138.7M

Institutions, Q2 2023

Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q1 2023.

Institutions holding XFOR in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Cubist Systematic Strategies, LLC1$20.00%+1New
ICA Group Wealth Management, LLC1,350$2.62K0.00%+1,350New
Clearstead Advisors, LLC2,100$4.07K0.00%00.0%Unchanged
UBS Group AG2,525$4.90K0.00%−97,475−97.5%Reduced
Ronald Blue Trust, Inc.8,520$7.00K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec4,000$7.76K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)5,821$11.3K0.00%+5,011+618.6%Added
Metropolitan Life Insurance Co6,779$13.2K0.00%+6,779New
1620 Investment Advisors, Inc.10,000$19.4K0.02%+10,000New
Ameritas Investment Partners, Inc.10,167$19.7K0.00%+10,167New
Royal Bank of Canada10,243$20.0K0.00%+10,243New
Victory Capital Management Inc11,413$22.1K0.00%+11,413New
Veritable, L.P.12,637$24.5K0.00%00.0%Unchanged
Legal & General Group Plc13,400$26.0K0.00%+13,400New
Principal Financial Group Inc13,804$26.8K0.00%+13,804New
Virtu Financial LLC15,077$29.0K0.00%−98,412−86.7%Reduced
Mission Wealth Management, LP15,000$29.1K0.00%00.0%Unchanged
Grimes & Company, Inc.15,000$29.1K0.00%+15,000New
Amalgamated Bank15,321$30.0K0.00%+15,321New
LexAurum Advisors, LLC16,000$31.0K0.01%00.0%Unchanged
ProShare Advisors LLC16,013$31.1K0.00%+16,013New
FMR LLC17,132$33.2K0.00%+17,129+570,966.7%Added
Bleichroeder LP17,865$34.7K0.01%−17,865−50.0%Reduced
Private Advisor Group, LLC19,800$38.4K0.00%+19,800New
Commonwealth Equity Services, LLC22,500$44.0K0.00%00.0%Unchanged
State of Wisconsin Investment Board23,800$46.2K0.00%+23,800New
Resources Investment Advisors, LLC.25,150$48.8K0.00%+25,150New
Price T Rowe Associates Inc25,005$49.0K0.00%+25,005New
Belvedere Trading LLC28,771$55.8K0.02%+28,771New
The PNC Financial Services Group, Inc.30,350$58.9K0.00%00.0%Unchanged
BNP Paribas Arbitrage, SA32,127$62.3K0.00%+32,120+458,857.1%Added
State Board of Administration of Florida Retirement System34,950$67.8K0.00%+34,950New
Boothbay Fund Management, LLC36,078$70.0K0.00%00.0%Unchanged
Citigroup Inc36,666$71.1K0.00%+36,666New
California State Teachers Retirement System40,956$79.5K0.00%+40,956New
Bank of America Corp44,838$87.0K0.00%+44,838New
CIBC Private Wealth Group, LLC45,000$87.3K0.00%+3,500+8.4%Added
Vontobel Holding Ltd.45,000$87.3K0.00%+45,000New
Wells Fargo & Company49,050$95.2K0.00%+48,297+6,413.9%Added
Voya Investment Management LLC49,260$95.6K0.00%+49,260New
New York State Common Retirement Fund50,600$98.2K0.00%+50,600New
Manufacturers Life Insurance Company, The51,690$100.3K0.00%+51,690New
Royce & Associates LP53,490$103.8K0.00%+53,490New
Dimensional Fund Advisors LP55,296$107.3K0.00%−4,013−6.8%Reduced
American International Group, Inc.59,261$115.0K0.00%+59,261New
Deutsche Bank AG61,227$118.8K0.00%+61,227New
Alliancebernstein L.P.65,400$126.9K0.00%+65,400New
MetLife Investment Management65,421$126.9K0.00%+65,421New
Invesco Ltd.71,558$138.8K0.00%+41,613+139.0%Added
Stifel Financial Corp81,315$157.8K0.00%−12,182−13.0%Reduced
Barclays PLC87,879$170.5K0.00%+87,879New
JPMorgan Chase & Co95,463$185.2K0.00%−530,584−84.8%Reduced
AWM Investment Company, Inc.100,000$194.0K0.03%+100,000New
Sassicaia Capital Advisers LLC138,000$267.7K0.23%+138,000New
Total Clarity Wealth Management, Inc.145,531$282.3K0.14%+134,531+1,223.0%Added
Rhumbline Advisers153,922$298.6K0.00%+153,922New
Morgan Stanley198,844$385.8K0.00%+122,639+160.9%Added
Simplex Trading, LLC226,566$439.0K0.02%+193,778+591.0%Added
Susquehanna International Group, LLP241,437$468.4K0.00%−41,110−14.5%Reduced
Charles Schwab Investment Management Inc323,843$628.3K0.00%+281,457+664.0%Added
Group One Trading, L.P.325,922$632.3K0.03%+295,614+975.4%Added
Goldman Sachs Group Inc334,441$648.8K0.00%+250,959+300.6%Added
New Leaf Venture Partners, L.L.C.335,000$649.9K0.56%00.0%Unchanged
Ikarian Capital, LLC349,133$677.3K0.24%00.0%Unchanged
Jane Street Group, LLC359,059$696.6K0.00%+337,491+1,564.8%Added
Simplify Asset Management Inc.400,000$776.0K0.14%00.0%Unchanged
Nuveen Asset Management, LLC438,114$849.9K0.00%+438,114New
UBS Oconnor LLC450,000$873.0K0.02%+450,000New
Two Sigma Investments, LP472,533$916.7K0.00%+456,489+2,845.2%Added
Bank of New York Mellon Corp478,229$927.8K0.00%+307,036+179.4%Added
Lynwood Capital Management Inc.525,000$1.02M1.29%−375,000−41.7%Reduced
EAM Investors, LLC567,801$1.10M0.20%+567,801New
Monashee Investment Management LLC572,784$1.11M0.27%+572,784New
Point72 Asset Management, L.P.650,000$1.26M0.00%00.0%Unchanged
Marshall Wace, LLP704,351$1.37M0.00%+704,351New
Schonfeld Strategic Advisors LLC983,700$1.91M0.02%−53,300−5.1%Reduced
Northern Trust Corp1,051,904$2.04M0.00%+827,434+368.6%Added
Sio Capital Management, LLC1,749,003$3.39M1.20%+1,749,003New
Kingdon Capital Management, L.L.C.1,973,683$3.83M0.67%+1,973,683New
State Street Corp2,219,583$4.31M0.00%+2,048,950+1,200.8%Added
CVI Holdings, LLC2,300,315$4.46M4.72%+2,300,315New
Geode Capital Management, LLC2,350,210$4.56M0.00%+1,241,526+112.0%Added
Armistice Capital, LLC2,976,000$5.77M0.14%+2,976,000New
Citadel Advisors LLC3,073,699$5.96M0.01%+3,055,738+17,013.2%Added
AXA S.A.3,424,988$6.64M0.02%−971,480−22.1%Reduced
Perceptive Advisors LLC3,545,454$6.88M0.20%−1,000,000−22.0%Reduced
Parkman Healthcare Partners LLC3,766,593$7.31M1.27%+969,446+34.7%Added
Tri Locum Partners LP4,099,943$7.95M2.96%+221,459+5.7%Added
Adage Capital Partners GP, L.L.C.4,276,315$8.30M0.02%+4,276,315New
Stonepine Capital Management, LLC4,605,263$8.93M3.22%+4,605,263New
Millennium Management LLC5,451,610$10.6M0.01%+4,371,397+404.7%Added
OrbiMed Advisors LLC7,133,515$13.8M0.27%+1,315,789+22.6%Added
Vanguard Group Inc7,787,140$15.1M0.00%+3,442,829+79.2%Added
BlackRock Inc.9,095,274$17.6M0.00%+8,751,694+2,547.2%Added
NEA Management Company, LLC14,986,793$29.1M2.22%+3,250,000+27.7%Added
Bain Capital Life Sciences Investors, LLC15,960,588$31.0M3.19%+3,758,078+30.8%Added
Cormorant Asset Management, LP0$00.00%−1,628,980−100.0%Sold out
Ghost Tree Capital, LLC0$00.00%−850,000−100.0%Sold out
Scoggin Management LP0$00.00%−484,796−100.0%Sold out
XTX Topco Ltd0$00.00%−96,649−100.0%Sold out