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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, Q3 2023

Institutional positions in X4 Pharmaceuticals, Inc as of Sep 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
91
−5 vs. Q2 2023
Shares held
112.4M
−506.2K (−0.4%) vs. Q2 2023
Total value
$122.6M
−$96.5M (−44.1%) vs. Q2 2023
New holders
10
27 more added
Sold out
15
26 more reduced

Compare with Q2 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 holdersQ3 2023: 91 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 heldQ3 2023: $122.6M
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, Q3 2023

Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q2 2023.

Institutions holding XFOR in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Citigroup Inc68$750.00%−36,598−99.8%Reduced
FMR LLC1,576$1.72K0.00%−15,556−90.8%Reduced
Clearstead Advisors, LLC2,100$2.29K0.00%00.0%Unchanged
Cubist Systematic Strategies, LLC2,456$2.68K0.00%+2,455+245,500.0%Added
Federation des caisses Desjardins du Quebec4,000$4.36K0.00%00.0%Unchanged
Metropolitan Life Insurance Co6,779$7.39K0.00%00.0%Unchanged
1620 Investment Advisors, Inc.10,000$10.9K0.01%00.0%Unchanged
PEAK6 Investments LLC10,000$10.9K0.00%+10,000New
Ameritas Investment Partners, Inc.10,167$11.1K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)10,277$11.2K0.00%+4,456+76.6%Added
LPL Financial LLC10,500$11.4K0.00%+10,500New
Legal & General Group Plc11,326$12.3K0.00%−2,074−15.5%Reduced
Total Clarity Wealth Management, Inc.11,532$12.6K0.01%−133,999−92.1%Reduced
Pathstone Family Office, LLC12,637$13.8K0.00%+12,637New
Simplex Trading, LLC13,280$14.0K0.00%−213,286−94.1%Reduced
Marshall Wace, LLP12,890$14.1K0.00%−691,461−98.2%Reduced
Jane Street Group, LLC13,367$14.6K0.00%−345,692−96.3%Reduced
Victory Capital Management Inc13,731$15.0K0.00%+2,318+20.3%Added
Wolverine Trading, LLC14,746$16.1K0.00%+14,746New
Grimes & Company, Inc.15,000$16.4K0.00%00.0%Unchanged
Amalgamated Bank15,321$17.0K0.00%00.0%Unchanged
Ronald Blue Trust, Inc.8,520$17.0K0.00%00.0%Unchanged
ProShare Advisors LLC15,995$17.4K0.00%−18−0.1%Reduced
LexAurum Advisors, LLC16,000$17.4K0.01%00.0%Unchanged
Principal Financial Group Inc16,327$17.8K0.00%+2,523+18.3%Added
Bleichroeder LP17,865$19.5K0.00%00.0%Unchanged
Royal Bank of Canada18,043$20.0K0.00%+7,800+76.1%Added
Private Advisor Group, LLC21,800$23.8K0.00%+2,000+10.1%Added
Commonwealth Equity Services, LLC26,750$29.0K0.00%+4,250+18.9%Added
California State Teachers Retirement System27,167$29.6K0.00%−13,789−33.7%Reduced
Price T Rowe Associates Inc26,793$30.0K0.00%+1,788+7.2%Added
Wells Fargo & Company27,628$30.1K0.00%−21,422−43.7%Reduced
Resources Investment Advisors, LLC.30,315$33.0K0.00%+5,165+20.5%Added
The PNC Financial Services Group, Inc.30,350$33.1K0.00%00.0%Unchanged
Two Sigma Securities, LLC32,337$35.2K0.00%+32,337New
SG Americas Securities, LLC34,340$37.0K0.00%+34,340New
CIBC Private Wealth Group, LLC45,000$49.0K0.00%00.0%Unchanged
Vontobel Holding Ltd.45,000$49.0K0.00%00.0%Unchanged
Alliancebernstein L.P.45,680$49.8K0.00%−19,720−30.2%Reduced
BNP Paribas Arbitrage, SA46,645$50.8K0.00%+14,518+45.2%Added
Voya Investment Management LLC49,260$53.7K0.00%00.0%Unchanged
Goldman Sachs Group Inc49,593$54.1K0.00%−284,848−85.2%Reduced
Manufacturers Life Insurance Company, The51,592$56.2K0.00%−98−0.2%Reduced
New York State Common Retirement Fund51,968$56.6K0.00%+1,368+2.7%Added
Dimensional Fund Advisors LP55,296$60.3K0.00%00.0%Unchanged
Deutsche Bank AG61,227$66.7K0.00%00.0%Unchanged
AQR Capital Management LLC61,289$66.8K0.00%+61,289New
American International Group, Inc.61,445$67.0K0.00%+2,184+3.7%Added
MetLife Investment Management65,421$71.3K0.00%00.0%Unchanged
JPMorgan Chase & Co79,805$87.0K0.00%−15,658−16.4%Reduced
Stifel Financial Corp80,278$87.5K0.00%−1,037−1.3%Reduced
Invesco Ltd.81,029$88.3K0.00%+9,471+13.2%Added
Verition Fund Management LLC88,395$96.4K0.00%+88,395New
Susquehanna International Group, LLP105,207$114.7K0.00%−136,230−56.4%Reduced
Royce & Associates LP119,006$129.7K0.00%+65,516+122.5%Added
UBS Group AG142,731$155.6K0.00%+140,206+5,552.7%Added
Rhumbline Advisers160,370$174.8K0.00%+6,448+4.2%Added
Group One Trading, L.P.226,361$246.7K0.01%−99,561−30.5%Reduced
Morgan Stanley241,744$263.5K0.00%+42,900+21.6%Added
Charles Schwab Investment Management Inc323,843$353.0K0.00%00.0%Unchanged
New Leaf Venture Partners, L.L.C.335,000$365.1K0.47%00.0%Unchanged
Bank of America Corp373,193$406.8K0.00%+328,355+732.3%Added
Barclays PLC382,134$416.5K0.00%+294,255+334.8%Added
Simplify Asset Management Inc.400,000$436.0K0.07%00.0%Unchanged
Monashee Investment Management LLC427,265$465.7K0.19%−145,519−25.4%Reduced
Nuveen Asset Management, LLC438,114$477.5K0.00%00.0%Unchanged
Bank of New York Mellon Corp474,693$517.4K0.00%−3,536−0.7%Reduced
Schonfeld Strategic Advisors LLC586,042$638.8K0.01%−397,658−40.4%Reduced
Gsa Capital Partners LLP621,587$678.0K0.06%+621,587New
Point72 Asset Management, L.P.650,000$708.5K0.00%00.0%Unchanged
Parkman Healthcare Partners LLC800,000$872.0K0.16%−2,966,593−78.8%Reduced
Northern Trust Corp1,067,693$1.16M0.00%+15,789+1.5%Added
UBS Oconnor LLC1,559,986$1.70M0.03%+1,109,986+246.7%Added
Citadel Advisors LLC1,798,628$1.96M0.00%−1,275,071−41.5%Reduced
Kingdon Capital Management, L.L.C.1,973,683$2.15M0.39%00.0%Unchanged
Armistice Capital, LLC2,356,000$2.57M0.08%−620,000−20.8%Reduced
State Street Corp2,378,626$2.59M0.00%+159,043+7.2%Added
Sio Capital Management, LLC2,599,003$2.83M0.88%+850,000+48.6%Added
Geode Capital Management, LLC2,642,915$2.88M0.00%+292,705+12.5%Added
AXA S.A.3,147,865$3.43M0.01%−277,123−8.1%Reduced
Perceptive Advisors LLC3,545,454$3.86M0.13%00.0%Unchanged
Millennium Management LLC3,615,964$3.94M0.00%−1,835,646−33.7%Reduced
Adage Capital Partners GP, L.L.C.4,276,315$4.66M0.01%00.0%Unchanged
Stonepine Capital Management, LLC5,273,685$5.75M1.91%+668,422+14.5%Added
Tri Locum Partners LP6,247,500$6.81M2.19%+2,147,557+52.4%Added
OrbiMed Advisors LLC7,133,515$7.78M0.18%00.0%Unchanged
Polar Capital Holdings Plc7,500,000$8.18M0.06%+7,500,000New
Vanguard Group Inc7,824,717$8.53M0.00%+37,577+0.5%Added
BlackRock Inc.8,156,841$8.89M0.00%−938,433−10.3%Reduced
NEA Management Company, LLC14,986,793$16.3M1.26%00.0%Unchanged
Bain Capital Life Sciences Investors, LLC15,960,588$17.4M1.95%00.0%Unchanged
CVI Holdings, LLC0$00.00%−2,300,315−100.0%Sold out
EAM Investors, LLC0$00.00%−567,801−100.0%Sold out
Lynwood Capital Management Inc.0$00.00%−525,000−100.0%Sold out
Two Sigma Investments, LP0$00.00%−472,533−100.0%Sold out
Ikarian Capital, LLC0$00.00%−349,133−100.0%Sold out
Sassicaia Capital Advisers LLC0$00.00%−138,000−100.0%Sold out
AWM Investment Company, Inc.0$00.00%−100,000−100.0%Sold out
Boothbay Fund Management, LLC0$00.00%−36,078−100.0%Sold out
State Board of Administration of Florida Retirement System0$00.00%−34,950−100.0%Sold out