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X4 Pharmaceuticals (XFOR) Institutional Ownership

X4 Pharmaceuticals logo
$4.43 +0.14 (+3.26%)
Closing price 05/8/2026 04:00 PM Eastern
Extended Trading
$4.36 -0.07 (-1.67%)
As of 05/8/2026 07:57 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for X4 Pharmaceuticals (NASDAQ:XFOR)

Current
Institutional Ownership
Percentage
72.03%
Number of
Institutional Buyers
(last 12 months)
36
Total
Institutional Inflows
(last 12 months)
$174.70M
Number of
Institutional Sellers
(last 12 months)
8
Total
Institutional Outflows
(last 12 months)
$58.71M
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Skip Chart & View Institutional Buying and Selling Data

XFOR Institutional Buying and Selling by Quarter

X4 Pharmaceuticals Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/23/2026Virtu Financial LLC22,489$90K0.0%N/A0.026%
2/18/2026Susquehanna Portfolio Strategies LLC43,259$173K0.0%N/A0.049%
2/18/2026Perceptive Advisors LLC6,314,452$25.26M0.5%N/A7.222%
2/18/2026Millennium Management LLC55,978$224K0.0%-13.6%0.064%
2/18/2026Man Group plc24,187$97K0.0%N/A0.028%
2/18/2026Balyasny Asset Management L.P.64,505$258K0.0%N/A0.074%
2/17/2026Braidwell LP3,368,904$13.48M0.4%N/A3.853%
2/17/2026Bain Capital Life Sciences Investors LLC7,967,454$31.87M2.4%+227.0%9.112%
2/17/2026ExodusPoint Capital Management LP79,072$316K0.0%N/A0.090%
2/16/2026Squarepoint Ops LLC12,518$50K0.0%N/A0.014%
2/16/2026OMERS ADMINISTRATION Corp109,200$437K0.0%N/A0.125%
2/16/2026Barclays PLC57,500$230K0.0%N/A0.066%
2/13/2026Nantahala Capital Management LLC2,449,468$9.80M0.3%+9.9%2.801%
2/13/2026Marshall Wace LLP80,456$322K0.0%N/A0.092%
2/13/2026Affinity Asset Advisors LLC145,000$580K0.0%N/A0.166%
2/13/2026Stifel Financial Corp20,496$82K0.0%N/A0.023%
2/13/2026Kalehua Capital Management LLC3,722,840$14.89M13.8%N/A4.258%
2/13/2026Hudson Bay Capital Management LP32,239$129K0.0%N/A0.037%
2/13/2026Charles Schwab Investment Management Inc.66,788$267K0.0%N/A0.076%
2/13/2026Siren L.L.C.1,500,000$6M0.2%N/A1.715%
2/13/2026State Street Corp198,234$793K0.0%+411.8%0.227%
2/12/2026Jane Street Group LLC91,413$366K0.0%N/A0.105%
2/12/2026Rosalind Advisors Inc.2,605,920$10.42M3.8%+68.7%2.980%
2/11/2026Empery Asset Management LP8,951,105$35.80M31.7%N/A10.237%
2/10/2026Goldman Sachs Group Inc.831,890$3.33M0.0%N/A0.951%
2/9/2026Geode Capital Management LLC940,447$3.76M0.0%+1,080.6%1.076%
2/9/2026Jefferies Financial Group Inc.26,118$104K0.0%N/A0.030%
2/3/2026 Indivisible Partners10,000$40K0.0%N/A0.011%
1/21/2026Palumbo Wealth Management LLC113,357$453K0.1%+18.9%0.130%
11/17/2025Acorn Capital Advisors LLC273,349$935K0.5%+77.8%0.313%
11/17/2025Nantahala Capital Management LLC2,228,350$7.62M0.3%N/A2.548%
11/17/2025Millennium Management LLC64,795$222K0.0%-17.0%0.074%
11/17/2025Kingdon Capital Management L.L.C.933,332$3.19M0.4%+300.0%1.067%
11/17/2025Bank of America Corp DE19,304$66K0.0%-76.0%0.022%
11/17/2025Boothbay Fund Management LLC343,963$1.18M0.0%N/A0.393%
11/14/2025Deep Track Capital LP1,122,484$3.84M0.1%N/A9.838%
11/14/2025Two Sigma Investments LP13,868$47K0.0%N/A0.122%
11/13/2025Rosalind Advisors Inc.1,544,607$5.28M1.9%N/A13.537%
11/10/2025Palumbo Wealth Management LLC95,327$326K0.1%N/A0.835%
11/7/2025Vanguard Group Inc.410,485$1.40M0.0%+77.0%3.598%
8/15/2025Bain Capital Life Sciences Investors LLC563,859$1.07M0.1%-96.7%9.738%
8/15/2025Acorn Capital Advisors LLC153,730$292K0.2%-97.9%2.655%
8/14/2025Jane Street Group LLC97,344$185K0.0%+112.5%1.681%
8/14/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC80,000$152K0.0%-68.3%1.382%
8/14/2025Pale Fire Capital SE60,051$114K0.0%-97.0%1.037%
8/8/2025Geode Capital Management LLC49,146$93K0.0%-98.6%0.849%
6/27/2025Goldman Sachs Group Inc.273,865$65K0.0%-42.7%4.730%
5/29/2025Rhumbline Advisers188,415$44K0.0%+5.4%3.255%
5/16/2025Goldman Sachs Group Inc.273,865$65K0.0%-42.7%4.731%
5/15/2025Kingdon Capital Management L.L.C.7,000,000$1.66M0.2%+41.8%120.919%
5/14/2025Pale Fire Capital SE2,035,362$481K0.1%+45.2%35.159%
5/9/2025Charles Schwab Investment Management Inc.481,528$114K0.0%+9.9%8.318%
2/17/2025Point72 Asset Management L.P.650,000$477K0.0%+4.0%0.381%
2/17/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,264,358$928K0.1%-18.4%0.741%
2/17/2025Millennium Management LLC258,759$190K0.0%-28.8%0.152%
2/17/2025Deutsche Bank AG267,628$195K0.0%+559.6%0.157%
2/17/2025Cantor Fitzgerald L. P.40,251$30K0.0%N/A0.024%
2/17/2025Bank of America Corp DE133,502$98K0.0%+20.3%0.078%
2/17/2025Acorn Capital Advisors LLC7,310,650$5.36M2.9%N/A4.287%
2/14/2025Jane Street Group LLC583,483$428K0.0%+134.9%0.342%
2/14/2025Schonfeld Strategic Advisors LLC1,392,826$1.02M0.0%-27.5%0.817%
2/14/2025Northern Trust Corp1,357,539$996K0.0%+2.9%0.796%
2/14/2025Stifel Financial Corp75,607$55K0.0%-38.3%0.044%
2/13/2025Invesco Ltd.62,073$46K0.0%-49.9%0.036%
2/13/2025Wells Fargo & Company MN78,518$58K0.0%+51.7%0.046%
2/12/2025Geode Capital Management LLC3,497,212$2.57M0.0%+1.4%2.051%
2/12/2025JPMorgan Chase & Co.459,653$337K0.0%+501.0%0.270%
1/31/2025Atria Wealth Solutions Inc.60,000$44K0.0%N/A0.035%
1/17/2025SG Americas Securities LLC183,152$134K0.0%+233.0%0.107%
11/19/2024Barclays PLC277,682$185K0.0%+196.0%0.163%
11/16/2024Geode Capital Management LLC3,447,512$2.31M0.0%-1.9%2.046%
11/15/2024Barclays PLC277,682$185K0.0%+196.0%0.165%
11/15/2024K2 Principal Fund L.P.89,158$60K0.0%-81.8%0.053%
11/15/2024XTX Topco Ltd157,642$106K0.0%+41.7%0.094%
11/15/2024Jane Street Group LLC248,447$166K0.0%+103.4%0.147%
11/15/2024State Street Corp2,952,895$1.98M0.0%+6.8%1.752%
11/15/2024Stifel Financial Corp122,448$82K0.0%-25.5%0.073%
11/15/2024Point72 Asset Management L.P.625,052$418K0.0%+15.1%0.371%
11/14/2024Verition Fund Management LLC44,355$30K0.0%N/A0.026%
11/14/2024Sio Capital Management LLC1,303,508$872K0.3%-47.9%0.774%
11/5/2024GSA Capital Partners LLP507,694$340K0.0%N/A0.301%
10/3/2024SG Americas Securities LLC55,004$37K0.0%N/A0.033%
8/19/2024Point72 Asset Management L.P.543,084$315K0.0%-16.4%0.323%
8/15/2024AQR Capital Management LLC424,042$246K0.0%+1,080.3%0.252%
8/14/2024K2 Principal Fund L.P.489,158$284K0.1%N/A0.291%
8/13/2024Ensign Peak Advisors Inc2,546,458$1.48M0.0%+4.6%1.516%
8/12/2024XTX Topco Ltd111,245$65K0.0%N/A0.066%
8/1/2024Rhumbline Advisers187,246$109K0.0%+14.6%0.111%
7/26/2024Bank of New York Mellon Corp469,372$272K0.0%+39.7%0.279%
5/15/2024Price T Rowe Associates Inc. MD39,307$55K0.0%+46.7%0.023%
5/10/2024Vanguard Group Inc.7,827,727$10.88M0.0%-2.3%4.661%
5/7/2024SG Americas Securities LLC20,822$29K0.0%-56.3%0.012%
5/3/2024GSA Capital Partners LLP321,021$446K0.0%-66.0%0.191%
5/1/2024BNP Paribas Financial Markets61,575$86K0.0%-78.3%0.037%
3/18/2024Kingdon Capital Management L.L.C.3,473,683$2.91M0.4%+76.0%2.076%
2/13/2024Bain Capital Life Sciences Investors LLC16,915,784$14.18M1.4%+6.0%10.112%
2/13/2024Armistice Capital LLC1,936,000$1.62M0.0%-17.8%1.157%
1/12/2024SG Americas Securities LLC47,668$40K0.0%+38.8%0.028%
11/22/2023Polar Capital Holdings Plc7,500,000$8.18M0.1%-25.0%4.483%
11/15/2023GSA Capital Partners LLP621,587$678K0.1%N/A0.372%


XFOR Institutional Ownership - Frequently Asked Questions

During the previous two years, 58 institutional investors and hedge funds held shares of X4 Pharmaceuticals. The most heavily invested institutionals were Empery Asset Management LP ($35.80M), Bain Capital Life Sciences Investors LLC ($31.87M), Perceptive Advisors LLC ($25.26M), Kalehua Capital Management LLC ($14.89M), Braidwell LP ($13.48M), Rosalind Advisors Inc. ($10.42M), and Nantahala Capital Management LLC ($9.80M).Learn more on X4 Pharmaceuticals' institutional investors.

72.03% of X4 Pharmaceuticals' stock is owned by institutional investors. Learn more on XFOR's institutional investor holdings.

Of the 53 institutional investors that purchased X4 Pharmaceuticals' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Empery Asset Management LP ($8.95M), Acorn Capital Advisors LLC ($7.43M), Perceptive Advisors LLC ($6.31M), Bain Capital Life Sciences Investors LLC ($5.53M), Kalehua Capital Management LLC ($3.72M), Braidwell LP ($3.37M), and Kingdon Capital Management L.L.C. ($2.76M).

Institutional investors have bought a total of 42,530,490 shares in the last 24 months. This purchase volume represents approximately $174.70M in transactions.

The following institutional investors have sold X4 Pharmaceuticals stock in the last 24 months: Bain Capital Life Sciences Investors LLC ($16.35M), Acorn Capital Advisors LLC ($7.16M), Geode Capital Management LLC ($3.57M), Pale Fire Capital SE ($1.98M), Goldman Sachs Group Inc. ($407.55K), OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC ($172.60K), and Bank of America Corp DE ($61.01K).

Institutional investors have sold a total of 29,717,935 shares in the last 24 months. This volume of shares sold represents approximately $58.71M in transactions.


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This page (NASDAQ:XFOR) was last updated on 5/9/2026 by MarketBeat.com Staff.
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