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, Q2 2021
Institutional positions in X4 Pharmaceuticals, Inc as of Jun 30, 2021. 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
- 63
- +2 vs. Q1 2021
- Shares held
- 17.2M
- +992.9K (+6.1%) vs. Q1 2021
- Total value
- $111.5M
- −$27.6M (−19.8%) vs. Q1 2021
- New holders
- 19
- 9 more added
- Sold out
- 17
- 18 more reduced
Compare with Q1 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 89 | $491.9M |
| Q1 2026 | 84 | $407.0M |
| Q4 2025 | 79 | $357.7M |
| Q3 2025 | 42 | $55.3M |
| Q2 2025 | 52 | $5.33M |
| Q1 2025 | 94 | $23.6M |
| Q4 2024 | 90 | $73.3M |
| Q3 2024 | 98 | $67.4M |
| Q2 2024 | 99 | $60.7M |
| Q1 2024 | 98 | $147.1M |
| Q4 2023 | 93 | $87.1M |
| Q3 2023 | 91 | $122.6M |
| Q2 2023 | 96 | $219.2M |
| Q1 2023 | 59 | $53.7M |
| Q4 2022 | 54 | $60.2M |
| Q3 2022 | 59 | $74.0M |
| Q2 2022 | 51 | $16.6M |
| Q1 2022 | 56 | $30.7M |
| Q4 2021 | 52 | $40.4M |
| Q3 2021 | 52 | $85.7M |
| Q2 2021 | 63 | $111.5M |
| Q1 2021 | 61 | $139.0M |
Institutions, Q2 2021
Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ikarian Capital, LLC | 2,719,290 | $17.7M | 3.16% | +104,302+4.0% | Added |
| Bain Capital Life Sciences Investors, LLC | 2,119,540 | $13.8M | 0.90% | 00.0% | Unchanged |
| AIGH Capital Management LLC | 1,438,899 | $9.35M | 2.54% | +1,438,899 | New |
| OrbiMed Advisors LLC | 1,373,849 | $8.93M | 0.09% | 00.0% | Unchanged |
| AXA S.A. | 1,136,832 | $7.39M | 0.01% | +567,985+99.8% | Added |
| Vanguard Group Inc | 897,641 | $5.83M | 0.00% | +161,039+21.9% | Added |
| BVF Inc | 847,879 | $5.51M | 0.21% | −243,700−22.3% | Reduced |
| Sio Capital Management, LLC | 804,597 | $5.23M | 1.42% | 00.0% | Unchanged |
| Driehaus Capital Management LLC | 795,312 | $5.17M | 0.07% | 00.0% | Unchanged |
| Monashee Investment Management LLC | 574,712 | $3.74M | 0.45% | 00.0% | Unchanged |
| Millennium Management LLC | 386,007 | $2.51M | 0.00% | +386,007 | New |
| New Leaf Venture Partners, L.L.C. | 335,000 | $2.18M | 0.56% | 00.0% | Unchanged |
| Worth Venture Partners, LLC | 334,684 | $2.17M | 0.81% | +334,684 | New |
| Boothbay Fund Management, LLC | 328,209 | $2.13M | 0.08% | +19,648+6.4% | Added |
| Polaris Venture Management Co. V, L.L.C. | 311,492 | $2.02M | 3.24% | 00.0% | Unchanged |
| SV Health Investors, LLC | 311,490 | $2.02M | 0.88% | 00.0% | Unchanged |
| BlackRock Inc. | 263,290 | $1.71M | 0.00% | −828,463−75.9% | Reduced |
| Abingworth LLP | 229,885 | $1.49M | 0.46% | 00.0% | Unchanged |
| FMR LLC | 212,620 | $1.38M | 0.00% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 172,413 | $1.08M | 0.01% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 161,917 | $1.05M | 0.00% | −96,248−37.3% | Reduced |
| Renaissance Technologies LLC | 130,694 | $850.0K | 0.00% | −25,350−16.2% | Reduced |
| Dimensional Fund Advisors LP | 125,297 | $814.0K | 0.00% | +77,987+164.8% | Added |
| Cormorant Asset Management, LP | 103,980 | $676.0K | 0.03% | 00.0% | Unchanged |
| Prosight Management, LP | 87,813 | $571.0K | 0.36% | +87,813 | New |
| Jane Street Group, LLC | 71,670 | $466.0K | 0.00% | +71,670 | New |
| Endurant Capital Management LP | 70,969 | $461.0K | 0.13% | −81,027−53.3% | Reduced |
| Ergoteles LLC | 69,800 | $454.0K | 0.01% | +69,800 | New |
| Northern Trust Corp | 68,563 | $446.0K | 0.00% | −111,819−62.0% | Reduced |
| ExodusPoint Capital Management, LP | 56,893 | $370.0K | 0.01% | +56,893 | New |
| Goldman Sachs Group Inc | 54,007 | $351.0K | 0.00% | −29,030−35.0% | Reduced |
| HRT Financial LP | 50,490 | $328.0K | 0.00% | +50,490 | New |
| State Street Corp | 48,480 | $315.0K | 0.00% | −228,360−82.5% | Reduced |
| Tibra Equities Europe Ltd | 48,400 | $315.0K | 0.10% | +48,400 | New |
| JPMorgan Chase & Co | 47,334 | $308.0K | 0.00% | +1,309+2.8% | Added |
| Citadel Advisors LLC | 47,073 | $306.0K | 0.00% | +47,073 | New |
| Susquehanna International Group, LLP | 38,900 | $253.0K | 0.00% | +38,900 | New |
| Bleichroeder LP | 35,730 | $232.0K | 0.04% | −35,730−50.0% | Reduced |
| Ensign Peak Advisors, Inc | 28,593 | $186.0K | 0.00% | 00.0% | Unchanged |
| Trexquant Investment LP | 25,287 | $164.0K | 0.01% | +25,287 | New |
| Bank of America Corp | 22,518 | $147.0K | 0.00% | −9,185−29.0% | Reduced |
| Engineers Gate Manager LP | 21,814 | $142.0K | 0.01% | +21,814 | New |
| Squarepoint Ops LLC | 20,638 | $134.0K | 0.00% | −440−2.1% | Reduced |
| Alpine Global Management, LLC | 16,877 | $110.0K | 0.01% | +16,877 | New |
| Barclays PLC | 16,410 | $107.0K | 0.00% | −4,835−22.8% | Reduced |
| Minot Wealth Management LLC | 17,000 | $103.0K | 0.02% | +17,000 | New |
| Marshall Wace, LLP | 13,709 | $89.0K | 0.00% | +13,709 | New |
| Tower Research Capital LLC (TRC) | 13,231 | $86.0K | 0.00% | +10,208+337.7% | Added |
| Cubist Systematic Strategies, LLC | 13,135 | $85.0K | 0.00% | +13,135 | New |
| The PNC Financial Services Group, Inc. | 10,350 | $67.0K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 10,242 | $67.0K | 0.00% | +7,118+227.8% | Added |
| LMR Partners LLP | 10,152 | $66.0K | 0.00% | +10,152 | New |
| Royal Bank of Canada | 2,064 | $13.0K | 0.00% | +340+19.7% | Added |
| Panagora Asset Management Inc | 1,060 | $7.00K | 0.00% | −13,027−92.5% | Reduced |
| BNP Paribas Arbitrage, SA | 462 | $3.00K | 0.00% | −5,147−91.8% | Reduced |
| Advisor Group Holdings, Inc. | 400 | $3.00K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 134 | $1.00K | 0.00% | −6,767−98.1% | Reduced |
| Wells Fargo & Company | 132 | $1.00K | 0.00% | −5,447−97.6% | Reduced |
| UBS Group AG | 122 | $1.00K | 0.00% | −3,868−96.9% | Reduced |
| Clearstead Advisors, LLC | 100 | $1.00K | 0.00% | 00.0% | Unchanged |
| Citigroup Inc | 25 | $0 | 0.00% | −1,043−97.7% | Reduced |
| Harbour Investments, Inc. | 10 | $0 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 53 | $0 | 0.00% | +53 | New |
| Ra Capital Management, L.P. | 0 | $0 | 0.00% | −536,962−100.0% | Sold out |
| Nuveen Asset Management, LLC | 0 | $0 | 0.00% | −80,113−100.0% | Sold out |
| Affinity Asset Advisors, LLC | 0 | $0 | 0.00% | −75,000−100.0% | Sold out |
| DAFNA Capital Management LLC | 0 | $0 | 0.00% | −69,912−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −54,365−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −41,673−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −32,500−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −24,681−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −20,633−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −10,565−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −10,439−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −9,370−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −6,786−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −1,423−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −987−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −477−100.0% | Sold out |
| Glassman Wealth Services | 0 | $0 | 0.00% | −300−100.0% | Sold out |