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, Q3 2021
Institutional positions in X4 Pharmaceuticals, Inc as of Sep 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
- 52
- −11 vs. Q2 2021
- Shares held
- 16.2M
- −381.2K (−2.3%) vs. Q2 2021
- Total value
- $85.7M
- −$22.0M (−20.5%) vs. Q2 2021
- New holders
- 6
- 8 more added
- Sold out
- 17
- 21 more reduced
Compare with Q2 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, Q3 2021
Shares, value and share of portfolio for each institution holding X4 Pharmaceuticals, Inc; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ikarian Capital, LLC | 2,539,917 | $13.4M | 3.08% | −179,373−6.6% | Reduced |
| Bain Capital Life Sciences Investors, LLC | 2,119,540 | $11.2M | 0.70% | 00.0% | Unchanged |
| AIGH Capital Management LLC | 1,664,540 | $8.80M | 2.48% | +225,641+15.7% | Added |
| OrbiMed Advisors LLC | 1,373,849 | $7.27M | 0.08% | 00.0% | Unchanged |
| Vanguard Group Inc | 934,352 | $4.94M | 0.00% | +36,711+4.1% | Added |
| BVF Inc | 847,879 | $4.49M | 0.17% | 00.0% | Unchanged |
| Sio Capital Management, LLC | 804,597 | $4.26M | 1.37% | 00.0% | Unchanged |
| Altium Capital Management LP | 804,598 | $4.26M | 1.14% | +804,598 | New |
| AXA S.A. | 590,269 | $3.12M | 0.01% | +21,853+3.8% | Added |
| Monashee Investment Management LLC | 561,421 | $2.97M | 0.55% | −13,291−2.3% | Reduced |
| Driehaus Capital Management LLC | 505,752 | $2.67M | 0.03% | −289,560−36.4% | Reduced |
| Worth Venture Partners, LLC | 386,475 | $2.04M | 0.92% | +51,791+15.5% | Added |
| New Leaf Venture Partners, L.L.C. | 335,000 | $1.77M | 0.51% | 00.0% | Unchanged |
| Polaris Venture Management Co. V, L.L.C. | 311,492 | $1.65M | 11.70% | 00.0% | Unchanged |
| SV Health Investors, LLC | 311,490 | $1.65M | 0.81% | 00.0% | Unchanged |
| BlackRock Inc. | 268,450 | $1.42M | 0.00% | +5,160+2.0% | Added |
| Boothbay Fund Management, LLC | 267,582 | $1.42M | 0.05% | −60,627−18.5% | Reduced |
| Millennium Management LLC | 267,368 | $1.41M | 0.00% | −118,639−30.7% | Reduced |
| Geode Capital Management, LLC | 178,060 | $941.0K | 0.00% | +16,143+10.0% | Added |
| FMR LLC | 152,831 | $808.0K | 0.00% | −59,789−28.1% | Reduced |
| Susquehanna International Group, LLP | 138,031 | $730.0K | 0.00% | +99,131+254.8% | Added |
| Renaissance Technologies LLC | 120,394 | $637.0K | 0.00% | −10,300−7.9% | Reduced |
| Cormorant Asset Management, LP | 103,980 | $550.0K | 0.02% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 73,495 | $389.0K | 0.00% | −51,802−41.3% | Reduced |
| Ergoteles LLC | 68,938 | $365.0K | 0.01% | −862−1.2% | Reduced |
| Northern Trust Corp | 67,859 | $359.0K | 0.00% | −704−1.0% | Reduced |
| State Street Corp | 48,480 | $256.0K | 0.00% | 00.0% | Unchanged |
| Hudson Bay Capital Management LP | 45,893 | $243.0K | 0.00% | −126,520−73.4% | Reduced |
| Bleichroeder LP | 35,730 | $189.0K | 0.03% | 00.0% | Unchanged |
| HRT Financial LP | 34,719 | $183.0K | 0.00% | −15,771−31.2% | Reduced |
| Citadel Advisors LLC | 33,932 | $180.0K | 0.00% | −13,141−27.9% | Reduced |
| Ensign Peak Advisors, Inc | 28,593 | $151.0K | 0.00% | 00.0% | Unchanged |
| Norges Bank | 27,700 | $147.0K | 0.00% | +27,700 | New |
| Marshall Wace North America L.P. | 26,252 | $139.0K | 0.00% | +26,252 | New |
| Marshall Wace, LLP | 25,223 | $133.0K | 0.00% | +11,514+84.0% | Added |
| Bank of America Corp | 17,182 | $91.0K | 0.00% | −5,336−23.7% | Reduced |
| Minot Wealth Management LLC | 17,000 | $90.0K | 0.02% | 00.0% | Unchanged |
| Trexquant Investment LP | 16,625 | $88.0K | 0.01% | −8,662−34.3% | Reduced |
| Goldman Sachs Group Inc | 10,475 | $55.0K | 0.00% | −43,532−80.6% | Reduced |
| The PNC Financial Services Group, Inc. | 10,350 | $55.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 9,899 | $52.0K | 0.00% | −6,511−39.7% | Reduced |
| Morgan Stanley | 8,800 | $46.0K | 0.00% | −1,442−14.1% | Reduced |
| American Portfolios Advisors | 6,250 | $33.1K | 0.00% | +6,250 | New |
| Group One Trading, L.P. | 2,083 | $11.0K | 0.00% | +2,083 | New |
| Tower Research Capital LLC (TRC) | 1,250 | $7.00K | 0.00% | −11,981−90.6% | Reduced |
| IFP Advisors, Inc | 1,000 | $5.00K | 0.00% | +1,000 | New |
| Advisor Group Holdings, Inc. | 400 | $2.00K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 295 | $1.56K | 0.00% | −167−36.1% | Reduced |
| Wells Fargo & Company | 125 | $1.00K | 0.00% | −7−5.3% | Reduced |
| Clearstead Advisors, LLC | 100 | $1.00K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 10 | $0 | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 53 | $0 | 0.00% | 00.0% | Unchanged |
| Abingworth LLP | 0 | $0 | 0.00% | −229,885−100.0% | Sold out |
| Prosight Management, LP | 0 | $0 | 0.00% | −87,813−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −71,670−100.0% | Sold out |
| Endurant Capital Management LP | 0 | $0 | 0.00% | −70,969−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −56,893−100.0% | Sold out |
| Tibra Equities Europe Ltd | 0 | $0 | 0.00% | −48,400−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −47,334−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −21,814−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −20,638−100.0% | Sold out |
| Alpine Global Management, LLC | 0 | $0 | 0.00% | −16,877−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −13,135−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −10,152−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −2,064−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −1,060−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −134−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −122−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −25−100.0% | Sold out |