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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 $491.9M in total; no superinvestor holds it.

13F holders, Q1 2023

Institutional positions in X4 Pharmaceuticals, Inc as of Mar 31, 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
59
+5 vs. Q4 2022
Shares held
61.5M
+841.1K (+1.4%) vs. Q4 2022
Total value
$53.6M
−$6.58M (−10.9%) vs. Q4 2022
New holders
13
16 more added
Sold out
8
10 more reduced

Compare with Q4 2022: 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 holdersQ1 2023: 59 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 heldQ1 2023: $53.7M
Q1 2021: $139.0MQ2 2021: $111.5MQ3 2021: $85.7MQ4 2021: $40.4MQ1 2022: $30.7MQ2 2022: $16.6MQ3 2022: $74.0MQ4 2022: $60.2MQ1 2023: $53.7MQ2 2023: $219.2MQ3 2023: $122.6MQ4 2023: $87.1MQ1 2024: $147.1MQ2 2024: $60.7MQ3 2024: $67.4MQ4 2024: $73.3MQ1 2025: $23.6MQ2 2025: $5.33MQ3 2025: $55.3MQ4 2025: $357.7MQ1 2026: $407.0MQ2 2026: $491.9M
Institutions holding XFOR and their total value by quarter
QuarterHoldersValue
Q2 202689$491.9M
Q1 202684$407.0M
Q4 202579$357.7M
Q3 202542$55.3M
Q2 202552$5.33M
Q1 202594$23.6M
Q4 202490$73.3M
Q3 202498$67.4M
Q2 202499$60.7M
Q1 202498$147.1M
Q4 202393$87.1M
Q3 202391$122.6M
Q2 202396$219.2M
Q1 202359$53.7M
Q4 202254$60.2M
Q3 202259$74.0M
Q2 202251$16.6M
Q1 202256$30.7M
Q4 202152$40.4M
Q3 202152$85.7M
Q2 202163$111.5M
Q1 202161$139.0M

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q4 2022.

Institutions holding XFOR in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Bain Capital Life Sciences Investors, LLC12,202,510$10.6M1.33%00.0%Unchanged
NEA Management Company, LLC11,736,793$10.2M0.71%00.0%Unchanged
OrbiMed Advisors LLC5,817,726$5.06M0.10%00.0%Unchanged
Perceptive Advisors LLC4,545,454$3.95M0.12%+4,545,454New
AXA S.A.4,396,468$3.82M0.01%+34,827+0.8%Added
Vanguard Group Inc4,344,311$3.78M0.00%+763,922+21.3%Added
Tri Locum Partners LP3,878,484$3.37M1.03%+171,967+4.6%Added
Parkman Healthcare Partners LLC2,797,147$2.43M0.53%+421,590+17.7%Added
Cormorant Asset Management, LP1,628,980$1.42M0.09%00.0%Unchanged
Geode Capital Management, LLC1,108,684$964.6K0.00%+521,168+88.7%Added
Millennium Management LLC1,080,213$940.0K0.00%−73,220−6.3%Reduced
Schonfeld Strategic Advisors LLC1,037,000$902.2K0.01%+141,700+15.8%Added
Lynwood Capital Management Inc.900,000$783.0K1.16%−1,255,100−58.2%Reduced
Ghost Tree Capital, LLC850,000$740.0K0.28%−150,000−15.0%Reduced
Scoggin Management LP484,796$567.0K0.83%+484,796New
Point72 Asset Management, L.P.650,000$565.5K0.00%00.0%Unchanged
JPMorgan Chase & Co626,047$545.0K0.00%+506,449+423.5%Added
Simplify Asset Management Inc.400,000$348.0K0.06%+400,000New
Ikarian Capital, LLC349,133$303.7K0.13%00.0%Unchanged
BlackRock Inc.343,580$298.9K0.00%+68,894+25.1%Added
New Leaf Venture Partners, L.L.C.335,000$291.4K0.24%00.0%Unchanged
Susquehanna International Group, LLP282,547$245.8K0.00%+282,547New
Northern Trust Corp224,470$195.3K0.00%+77,757+53.0%Added
Bank of New York Mellon Corp171,193$148.9K0.00%00.0%Unchanged
State Street Corp170,633$148.5K0.00%00.0%Unchanged
Virtu Financial LLC113,489$99.0K0.01%+113,489New
UBS Group AG100,000$87.0K0.00%+100,000New
XTX Topco Ltd96,649$84.1K0.02%+96,649New
Stifel Financial Corp93,497$81.3K0.00%+11,501+14.0%Added
Goldman Sachs Group Inc83,482$72.6K0.00%+28,502+51.8%Added
Morgan Stanley76,205$66.3K0.00%+148+0.2%Added
Dimensional Fund Advisors LP59,309$51.6K0.00%00.0%Unchanged
Charles Schwab Investment Management Inc42,386$36.9K0.00%00.0%Unchanged
Landscape Capital Management, L.L.C.42,252$36.8K0.01%+42,252New
CIBC Private Wealth Group, LLC41,500$36.1K0.00%+41,500New
Boothbay Fund Management, LLC36,078$31.4K0.00%00.0%Unchanged
Bleichroeder LP35,730$31.1K0.01%00.0%Unchanged
Simplex Trading, LLC32,788$28.0K0.00%+14,464+78.9%Added
The PNC Financial Services Group, Inc.30,350$26.4K0.00%−707−2.3%Reduced
Group One Trading, L.P.30,308$26.4K0.00%+10,128+50.2%Added
Invesco Ltd.29,945$26.1K0.00%+14,331+91.8%Added
Commonwealth Equity Services, LLC22,500$19.0K0.00%00.0%Unchanged
Jane Street Group, LLC21,568$18.8K0.00%+21,568New
Citadel Advisors LLC17,961$15.6K0.00%−926,892−98.1%Reduced
Two Sigma Investments, LP16,044$14.0K0.00%−6,058−27.4%Reduced
LexAurum Advisors, LLC16,000$13.9K0.00%00.0%Unchanged
Mission Wealth Management, LP15,000$13.1K0.00%+15,000New
Veritable, L.P.12,637$11.0K0.00%00.0%Unchanged
Total Clarity Wealth Management, Inc.11,000$9.57K0.01%+11,000New
Renaissance Technologies LLC10,092$9.00K0.00%−84,702−89.4%Reduced
Ronald Blue Trust, Inc.8,520$8.00K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec4,000$3.48K0.00%00.0%Unchanged
Clearstead Advisors, LLC2,100$1.83K0.00%00.0%Unchanged
Tower Research Capital LLC (TRC)810$1.00K0.00%−9,417−92.1%Reduced
Wells Fargo & Company753$6550.00%+326+76.3%Added
Advisor Group Holdings, Inc.529$4600.00%−4,440−89.4%Reduced
BNP Paribas Arbitrage, SA7$60.00%−2−22.2%Reduced
FMR LLC3$30.00%+3New
CWM, LLC2$00.00%00.0%Unchanged
CVI Holdings, LLC0$00.00%−2,381,923−100.0%Sold out
Sio Capital Management, LLC0$00.00%−1,825,963−100.0%Sold out
BVF Inc0$00.00%−1,347,650−100.0%Sold out
PEAK6 Investments LLC0$00.00%−20,200−100.0%Sold out
Cutler Group LP0$00.00%−12,200−100.0%Sold out
High Net Worth Advisory Group LLC0$00.00%−1,100−100.0%Sold out
Bank of America Corp0$00.00%−272−100.0%Sold out
Rockefeller Capital Management L.P.0$00.00%−1,000−100.0%Sold out