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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 2022

Institutional positions in X4 Pharmaceuticals, Inc as of Mar 31, 2022. 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
56
+4 vs. Q4 2021
Shares held
16.3M
−1.22M (−7.0%) vs. Q4 2021
Total value
$28.7M
−$11.5M (−28.6%) vs. Q4 2021
New holders
10
13 more added
Sold out
6
16 more reduced

Compare with Q4 2021: 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 2022: 56 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 2022: $30.7M
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 2022

Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q4 2021.

Institutions holding XFOR in Q1 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Bain Capital Life Sciences Investors, LLC3,019,540$5.28M0.51%+132,998+4.6%Added
Tri Locum Partners LP1,717,589$3.01M1.17%+138,642+8.8%Added
Point72 Asset Management, L.P.1,633,204$2.86M0.01%00.0%Unchanged
OrbiMed Advisors LLC1,373,849$2.40M0.04%00.0%Unchanged
Ikarian Capital, LLC1,372,022$2.40M0.73%−892,469−39.4%Reduced
AXA S.A.1,151,340$2.01M0.01%−4790.0%Reduced
AIGH Capital Management LLC997,719$1.75M0.63%−466,380−31.9%Reduced
BVF Inc847,879$1.48M0.06%00.0%Unchanged
Vanguard Group Inc653,185$1.14M0.00%−280,055−30.0%Reduced
Millennium Management LLC403,946$707.0K0.00%+201,463+99.5%Added
New Leaf Venture Partners, L.L.C.335,000$586.0K0.29%00.0%Unchanged
SV Health Investors, LLC311,490$545.0K0.66%00.0%Unchanged
Sio Capital Management, LLC276,909$485.0K0.20%00.0%Unchanged
BlackRock Inc.271,794$476.0K0.00%−2,754−1.0%Reduced
Worth Venture Partners, LLC250,144$438.0K0.21%−90,351−26.5%Reduced
Geode Capital Management, LLC183,277$320.0K0.00%+5,217+2.9%Added
Ensign Peak Advisors, Inc176,530$309.0K0.00%00.0%Unchanged
Renaissance Technologies LLC173,094$303.0K0.00%+35,800+26.1%Added
Boothbay Fund Management, LLC140,963$247.0K0.01%−97,603−40.9%Reduced
Bank of New York Mellon Corp140,612$246.0K0.00%+140,612New
Kennedy Capital Management, Inc.113,848$199.0K0.00%−17,653−13.4%Reduced
Cormorant Asset Management, LP103,980$182.0K0.01%00.0%Unchanged
Stifel Financial Corp69,599$122.0K0.00%+69,599New
Advisor Group Holdings, Inc.899$117.0K0.00%+499+124.8%Added
Dimensional Fund Advisors LP61,409$107.0K0.00%−4,761−7.2%Reduced
Citadel Advisors LLC55,514$97.0K0.00%−22,186−28.6%Reduced
Northern Trust Corp55,426$97.0K0.00%−12,078−17.9%Reduced
State Street Corp54,733$96.0K0.00%+6,253+12.9%Added
Minot Wealth Management LLC55,000$96.0K0.02%+55,000New
Jane Street Group, LLC36,847$64.0K0.00%+36,847New
Bleichroeder LP35,730$63.0K0.01%00.0%Unchanged
Susquehanna International Group, LLP35,302$62.0K0.00%−42,969−54.9%Reduced
Simplex Trading, LLC35,673$62.0K0.00%+30,364+571.9%Added
Norges Bank27,700$48.5K0.00%00.0%Unchanged
XTX Topco Ltd26,546$46.0K0.02%+6,608+33.1%Added
Virtu Financial LLC25,965$45.0K0.00%+25,965New
Group One Trading, L.P.16,950$30.0K0.00%+3,200+23.3%Added
Marshall Wace, LLP13,099$23.0K0.00%−47,380−78.3%Reduced
The PNC Financial Services Group, Inc.11,057$19.0K0.00%+707+6.8%Added
Moody Lynn & Lieberson, LLC10,000$18.0K0.00%00.0%Unchanged
Mayflower Financial Advisors, LLC10,000$18.0K0.00%00.0%Unchanged
Dynamic Advisor Solutions LLC10,000$18.0K0.00%+10,000New
Morgan Stanley8,909$16.0K0.00%−3,149−26.1%Reduced
Tower Research Capital LLC (TRC)9,695$16.0K0.00%+9,695New
Barclays PLC7,804$14.0K0.00%00.0%Unchanged
Bank of America Corp6,245$11.0K0.00%−3,161−33.6%Reduced
American Portfolios Advisors6,250$10.9K0.00%00.0%Unchanged
Federation des caisses Desjardins du Quebec4,000$7.00K0.00%+4,000New
Clearstead Advisors, LLC2,100$4.00K0.00%00.0%Unchanged
High Net Worth Advisory Group LLC1,100$2.00K0.00%00.0%Unchanged
UBS Group AG1,263$2.00K0.00%+595+89.1%Added
Cubist Systematic Strategies, LLC1,400$2.00K0.00%+1,400New
Rockefeller Capital Management L.P.1,000$1.00K0.00%00.0%Unchanged
Federated Hermes, Inc.152$1.00K0.00%+152New
BNP Paribas Arbitrage, SA160$2800.00%−118−42.4%Reduced
Wells Fargo & Company142$00.00%+17+13.6%Added
Acadian Asset Management LLC0$00.00%−57,270−100.0%Sold out
FMR LLC0$00.00%−53,031−100.0%Sold out
Goldman Sachs Group Inc0$00.00%−20,949−100.0%Sold out
Connor, Clark & Lunn Investment Management Ltd.0$00.00%−12,786−100.0%Sold out
Engineers Gate Manager LP0$00.00%−11,874−100.0%Sold out
JPMorgan Chase & Co0$00.00%−203−100.0%Sold out