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XFOR Insider Trading

Insider Ownership Percentage: 2.37%
Insider Buying (Last 12 Months): $252,556.76
Insider Selling (Last 12 Months): $0.00

X4 Pharmaceuticals Insider Trading History Chart

This chart shows the insider buying and selling history at X4 Pharmaceuticals by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

X4 Pharmaceuticals Share Price & Price History

Current Price: $3.10
Price Change: ▲ Price Increase of +0.11 (3.68%)
As of 02/19/2026 05:00 PM ET

This chart shows the closing price history over time for XFOR up to the past year.

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

X4 Pharmaceuticals Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
10/23/2025Adam R CraigChairmanBuy86,206$2.90$249,997.40376,087View SEC Filing Icon  
5/16/2025Mark BaldryInsiderBuy1,032$2.48$2,559.3625,337View SEC Filing Icon  
1/24/2025Adam S. MostafaCFOSell2,492$13.50$33,642.00View SEC Filing Icon  
1/24/2025Mark BaldryInsiderSell971$13.50$13,108.503,137View SEC Filing Icon  
1/24/2025Mary DibiaseCOOSell741$13.50$10,003.5016,366View SEC Filing Icon  
1/24/2025Paula RaganCEOSell2,549$13.50$34,411.5036,246View SEC Filing Icon  
10/15/2024Paula RaganCEOSell1,063$16.80$17,858.4034,193View SEC Filing Icon  
10/7/2024Adam S. MostafaCFOSell7,688$16.50$126,852.00View SEC Filing Icon  
10/7/2024Mark BaldryInsiderSell370$17.40$6,438.001,616View SEC Filing Icon  
10/7/2024Mary DibiaseCOOSell2,256$17.10$38,577.6015,068View SEC Filing Icon  
10/7/2024Paula RaganCEOSell7,981$16.50$131,686.5035,257View SEC Filing Icon  
3/11/2024Adam S. MostafaCFOSell1,750$26.40$46,200.00View SEC Filing Icon  
3/11/2024Arthur TaverasInsiderSell474$26.40$12,513.607,810View SEC Filing Icon  
3/11/2024Mary DibiaseCOOSell513$26.40$13,543.209,725View SEC Filing Icon  
3/11/2024Paula RaganCEOSell1,655$26.40$43,692.0025,502View SEC Filing Icon  
2/12/2024Adam S. MostafaCFOSell924$30.30$27,997.201,750View SEC Filing Icon  
2/12/2024Arthur TaverasInsiderSell26$30.30$787.808,284View SEC Filing Icon  
2/12/2024Mary DibiaseCOOSell122$30.30$3,696.6010,238View SEC Filing Icon  
2/12/2024Paula RaganCEOSell723$30.30$21,906.9027,158View SEC Filing Icon  
11/3/2023Paula RaganCEOSell1,330$27.00$35,910.0027,881View SEC Filing Icon  
11/1/2023Adam S. MostafaCFOSell7,688$21.90$168,367.202,674View SEC Filing Icon  
11/1/2023Mark BaldryInsiderSell341$21.90$7,467.90823View SEC Filing Icon  
11/1/2023Mary DibiaseCOOSell2,256$21.90$49,406.4010,361View SEC Filing Icon  
11/1/2023Paula RaganCEOSell6,651$21.90$145,656.9029,211View SEC Filing Icon  
9/8/2023Mary DibiaseCOOSell88$37.50$3,300.004,929View SEC Filing Icon  
8/18/2023Michael S. WyzgaDirectorBuy833$36.00$29,988.002,555View SEC Filing Icon  
8/10/2023Murray StewartInsiderSell4,335$31.80$137,853.004,883View SEC Filing Icon  
6/30/2023Adam S. MostafaCFOSell88$56.70$4,989.602,674View SEC Filing Icon  
6/30/2023Mary DibiaseCOOSell15$56.70$850.505,017View SEC Filing Icon  
6/23/2023Adam S. MostafaCFOSell180$57.90$10,422.002,762View SEC Filing Icon  
6/23/2023Mary DibiaseCOOSell28$57.90$1,621.205,033View SEC Filing Icon  
6/23/2023Paula RaganCEOSell224$57.60$12,902.4018,126View SEC Filing Icon  
6/15/2023Adam S. MostafaCFOSell180$66.60$11,988.002,942View SEC Filing Icon  
6/15/2023Mary DibiaseCOOSell28$66.90$1,873.205,061View SEC Filing Icon  
6/15/2023Paula RaganCEOSell224$66.90$14,985.6018,350View SEC Filing Icon  
5/31/2023Paula RaganCEOSell209$58.50$12,226.5018,574View SEC Filing Icon  
5/17/2023Israel NivDirectorSell14$99.60$1,394.402,240View SEC Filing Icon  
5/17/2023Tuvia BarlevCEOSell70$99.60$6,972.005,453View SEC Filing Icon  
See Full Table

SEC Filings (Institutional Ownership Changes) for X4 Pharmaceuticals (NASDAQ:XFOR)

72.03% of X4 Pharmaceuticals stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at XFOR by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

X4 Pharmaceuticals Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/18/2026Susquehanna Portfolio Strategies LLC43,259$0.17M0.0%N/A0.049%Search for SEC Filing on Google Icon
2/18/2026Perceptive Advisors LLC6,314,452$25.26M0.5%N/A7.222%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC55,978$0.22M0.0%-13.6%0.064%Search for SEC Filing on Google Icon
2/18/2026Man Group plc24,187$97K0.0%N/A0.028%Search for SEC Filing on Google Icon
2/18/2026Balyasny Asset Management L.P.64,505$0.26M0.0%N/A0.074%Search for SEC Filing on Google Icon
2/17/2026Braidwell LP3,368,904$13.48M0.4%N/A3.853%Search for SEC Filing on Google Icon
2/17/2026Bain Capital Life Sciences Investors LLC7,967,454$31.87M2.4%+227.0%9.112%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP79,072$0.32M0.0%N/A0.090%Search for SEC Filing on Google Icon
2/16/2026Squarepoint Ops LLC12,518$50K0.0%N/A0.014%Search for SEC Filing on Google Icon
2/16/2026OMERS ADMINISTRATION Corp109,200$0.44M0.0%N/A0.125%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC57,500$0.23M0.0%N/A0.066%Search for SEC Filing on Google Icon
2/13/2026Nantahala Capital Management LLC2,449,468$9.80M0.3%+9.9%2.801%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP80,456$0.32M0.0%N/A0.092%Search for SEC Filing on Google Icon
2/13/2026Affinity Asset Advisors LLC145,000$0.58M0.0%N/A0.166%Search for SEC Filing on Google Icon
2/13/2026Stifel Financial Corp20,496$82K0.0%N/A0.023%Search for SEC Filing on Google Icon
2/13/2026Kalehua Capital Management LLC3,722,840$14.89M13.8%N/A4.258%Search for SEC Filing on Google Icon
2/13/2026Hudson Bay Capital Management LP32,239$0.13M0.0%N/A0.037%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.66,788$0.27M0.0%N/A0.076%Search for SEC Filing on Google Icon
2/13/2026Siren L.L.C.1,500,000$6M0.2%N/A1.715%Search for SEC Filing on Google Icon
2/13/2026State Street Corp198,234$0.79M0.0%+411.8%0.227%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC91,413$0.37M0.0%N/A0.105%Search for SEC Filing on Google Icon
2/12/2026Rosalind Advisors Inc.2,605,920$10.42M3.8%+68.7%2.980%Search for SEC Filing on Google Icon
2/11/2026Empery Asset Management LP8,951,105$35.80M31.7%N/A10.237%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.831,890$3.33M0.0%N/A0.951%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC940,447$3.76M0.0%+1,080.6%1.076%Search for SEC Filing on Google Icon
2/9/2026Jefferies Financial Group Inc.26,118$0.10M0.0%N/A0.030%Search for SEC Filing on Google Icon
2/3/2026Indivisible Partners10,000$40K0.0%N/A0.011%Search for SEC Filing on Google Icon
1/21/2026Palumbo Wealth Management LLC113,357$0.45M0.1%+18.9%0.130%Search for SEC Filing on Google Icon
11/17/2025Acorn Capital Advisors LLC273,349$0.94M0.5%+77.8%0.313%Search for SEC Filing on Google Icon
11/17/2025Nantahala Capital Management LLC2,228,350$7.62M0.3%N/A2.548%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC64,795$0.22M0.0%-17.0%0.074%Search for SEC Filing on Google Icon
11/17/2025Kingdon Capital Management L.L.C.933,332$3.19M0.4%+300.0%1.067%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE19,304$66K0.0%-76.0%0.022%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC343,963$1.18M0.0%N/A0.393%Search for SEC Filing on Google Icon
11/14/2025Deep Track Capital LP1,122,484$3.84M0.1%N/A9.838%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP13,868$47K0.0%N/A0.122%Search for SEC Filing on Google Icon
11/13/2025Rosalind Advisors Inc.1,544,607$5.28M1.9%N/A13.537%Search for SEC Filing on Google Icon
11/10/2025Palumbo Wealth Management LLC95,327$0.33M0.1%N/A0.835%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.410,485$1.40M0.0%+77.0%3.598%Search for SEC Filing on Google Icon
8/15/2025Bain Capital Life Sciences Investors LLC563,859$1.07M0.1%-96.7%9.738%Search for SEC Filing on Google Icon
8/15/2025Acorn Capital Advisors LLC153,730$0.29M0.2%-97.9%2.655%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC97,344$0.19M0.0%+112.5%1.681%Search for SEC Filing on Google Icon
8/14/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC80,000$0.15M0.0%-68.3%1.382%Search for SEC Filing on Google Icon
8/14/2025Pale Fire Capital SE60,051$0.11M0.0%-97.0%1.037%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC49,146$93K0.0%-98.6%0.849%Search for SEC Filing on Google Icon
6/27/2025Goldman Sachs Group Inc.273,865$65K0.0%-42.7%4.730%Search for SEC Filing on Google Icon
5/29/2025Rhumbline Advisers188,415$44K0.0%+5.4%3.255%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.273,865$65K0.0%-42.7%4.731%Search for SEC Filing on Google Icon
5/15/2025Kingdon Capital Management L.L.C.7,000,000$1.66M0.2%+41.8%120.919%Search for SEC Filing on Google Icon
5/14/2025Pale Fire Capital SE2,035,362$0.48M0.1%+45.2%35.159%Search for SEC Filing on Google Icon
5/9/2025Charles Schwab Investment Management Inc.481,528$0.11M0.0%+9.9%8.318%Search for SEC Filing on Google Icon
2/17/2025Point72 Asset Management L.P.650,000$0.48M0.0%+4.0%0.381%Search for SEC Filing on Google Icon
2/17/2025OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC 1,264,358$0.93M0.1%-18.4%0.741%Search for SEC Filing on Google Icon
2/17/2025Millennium Management LLC258,759$0.19M0.0%-28.8%0.152%Search for SEC Filing on Google Icon
2/17/2025Deutsche Bank AG267,628$0.20M0.0%+559.6%0.157%Search for SEC Filing on Google Icon
2/17/2025Cantor Fitzgerald L. P.40,251$30K0.0%N/A0.024%Search for SEC Filing on Google Icon
2/17/2025Bank of America Corp DE133,502$98K0.0%+20.3%0.078%Search for SEC Filing on Google Icon
2/17/2025Acorn Capital Advisors LLC7,310,650$5.36M2.9%N/A4.287%Search for SEC Filing on Google Icon
2/14/2025Jane Street Group LLC583,483$0.43M0.0%+134.9%0.342%Search for SEC Filing on Google Icon
2/14/2025Schonfeld Strategic Advisors LLC1,392,826$1.02M0.0%-27.5%0.817%Search for SEC Filing on Google Icon
2/14/2025Northern Trust Corp1,357,539$1M0.0%+2.9%0.796%Search for SEC Filing on Google Icon
2/14/2025Stifel Financial Corp75,607$55K0.0%-38.3%0.044%Search for SEC Filing on Google Icon
2/13/2025Invesco Ltd.62,073$46K0.0%-49.9%0.036%Search for SEC Filing on Google Icon
2/13/2025Wells Fargo & Company MN78,518$58K0.0%+51.7%0.046%Search for SEC Filing on Google Icon
2/12/2025Geode Capital Management LLC3,497,212$2.57M0.0%+1.4%2.051%Search for SEC Filing on Google Icon
2/12/2025JPMorgan Chase & Co.459,653$0.34M0.0%+501.0%0.270%Search for SEC Filing on Google Icon
1/31/2025Atria Wealth Solutions Inc.60,000$44K0.0%N/A0.035%Search for SEC Filing on Google Icon
1/17/2025SG Americas Securities LLC183,152$0.13M0.0%+233.0%0.107%Search for SEC Filing on Google Icon
11/19/2024Barclays PLC277,682$0.19M0.0%+196.0%0.163%Search for SEC Filing on Google Icon
11/16/2024Geode Capital Management LLC3,447,512$2.31M0.0%-1.9%2.046%Search for SEC Filing on Google Icon
11/15/2024Barclays PLC277,682$0.19M0.0%+196.0%0.165%Search for SEC Filing on Google Icon
11/15/2024K2 Principal Fund L.P.89,158$60K0.0%-81.8%0.053%Search for SEC Filing on Google Icon
11/15/2024XTX Topco Ltd157,642$0.11M0.0%+41.7%0.094%Search for SEC Filing on Google Icon
11/15/2024Jane Street Group LLC248,447$0.17M0.0%+103.4%0.147%Search for SEC Filing on Google Icon
11/15/2024State Street Corp2,952,895$1.98M0.0%+6.8%1.752%Search for SEC Filing on Google Icon
11/15/2024Stifel Financial Corp122,448$82K0.0%-25.5%0.073%Search for SEC Filing on Google Icon
11/15/2024Point72 Asset Management L.P.625,052$0.42M0.0%+15.1%0.371%Search for SEC Filing on Google Icon
11/14/2024Verition Fund Management LLC44,355$30K0.0%N/A0.026%Search for SEC Filing on Google Icon
11/14/2024Sio Capital Management LLC1,303,508$0.87M0.3%-47.9%0.774%Search for SEC Filing on Google Icon
11/5/2024GSA Capital Partners LLP507,694$0.34M0.0%N/A0.301%Search for SEC Filing on Google Icon
10/3/2024SG Americas Securities LLC55,004$37K0.0%N/A0.033%Search for SEC Filing on Google Icon
8/19/2024Point72 Asset Management L.P.543,084$0.32M0.0%-16.4%0.323%Search for SEC Filing on Google Icon
8/15/2024AQR Capital Management LLC424,042$0.25M0.0%+1,080.3%0.252%Search for SEC Filing on Google Icon
8/14/2024K2 Principal Fund L.P.489,158$0.28M0.1%N/A0.291%Search for SEC Filing on Google Icon
8/13/2024Ensign Peak Advisors Inc2,546,458$1.48M0.0%+4.6%1.516%Search for SEC Filing on Google Icon
8/12/2024XTX Topco Ltd111,245$65K0.0%N/A0.066%Search for SEC Filing on Google Icon
8/1/2024Rhumbline Advisers187,246$0.11M0.0%+14.6%0.111%Search for SEC Filing on Google Icon
7/26/2024Bank of New York Mellon Corp469,372$0.27M0.0%+39.7%0.279%Search for SEC Filing on Google Icon
5/15/2024Price T Rowe Associates Inc. MD39,307$55K0.0%+46.7%0.023%Search for SEC Filing on Google Icon
5/10/2024Vanguard Group Inc.7,827,727$10.88M0.0%-2.3%4.661%Search for SEC Filing on Google Icon
5/7/2024SG Americas Securities LLC20,822$29K0.0%-56.3%0.012%Search for SEC Filing on Google Icon
5/3/2024GSA Capital Partners LLP321,021$0.45M0.0%-66.0%0.191%Search for SEC Filing on Google Icon
5/1/2024BNP Paribas Financial Markets61,575$86K0.0%-78.3%0.037%Search for SEC Filing on Google Icon
3/18/2024Kingdon Capital Management L.L.C.3,473,683$2.91M0.4%+76.0%2.076%Search for SEC Filing on Google Icon
2/13/2024Bain Capital Life Sciences Investors LLC16,915,784$14.18M1.4%+6.0%10.112%Search for SEC Filing on Google Icon
2/13/2024Armistice Capital LLC1,936,000$1.62M0.0%-17.8%1.157%Search for SEC Filing on Google Icon
1/12/2024SG Americas Securities LLC47,668$40K0.0%+38.8%0.028%Search for SEC Filing on Google Icon
11/22/2023Polar Capital Holdings Plc7,500,000$8.18M0.1%-25.0%4.483%Search for SEC Filing on Google Icon
11/15/2023GSA Capital Partners LLP621,587$0.68M0.1%N/A0.372%Search for SEC Filing on Google Icon
11/15/2023Armistice Capital LLC2,356,000$2.57M0.0%-20.8%1.408%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
X4 Pharmaceuticals logo
X4 Pharmaceuticals, Inc., a late-stage clinical biopharmaceutical company, focuses on the research, development, and commercialization of novel therapeutics for the treatment of rare diseases. Its lead product candidate is mavorixafor, a small molecule inhibitor of the chemokine receptor C-X-C chemokine receptor type 4 (CXCR4), which is in Phase III clinical trial for the treatment of patients with warts, hypogammaglobulinemia, infections, and myelokathexis syndrome; and Phase II clinical trial to treat congenital, idiopathic, or cyclic neutropenia. The company is also developing X4P-003, a CXCR4 antagonist for the treatment of CXCR4 dependent disorders and primary immunodeficiencies; and X4P-002, a CXCR4 antagonist for the treatment of blood-brain barrier diseases. It has a license agreement with Abbisko Therapeutics Co Ltd. to develop, manufacture, and commercialize mavorixafor in combination with checkpoint inhibitors or other agents in oncology indications. The company is headquartered in Boston, Massachusetts.
Read More on X4 Pharmaceuticals

Today's Range

Now: $3.10
Low: $2.96
High: $3.15

50 Day Range

MA: $3.78
Low: $2.99
High: $4.50

52 Week Range

Now: $3.10
Low: $1.35
High: $15.15

Volume

573,542 shs

Average Volume

433,294 shs

Market Capitalization

$271.06 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

0.46

Who are the company insiders with the largest holdings of X4 Pharmaceuticals?

X4 Pharmaceuticals' top insider shareholders include:
  1. Adam R Craig (Chairman)
  2. Paula Ragan (CEO)
  3. Mark Baldry (Insider)
  4. Mary Dibiase (COO)
  5. Arthur Taveras (Insider)
  6. Adam S Mostafa (CFO)
Learn More about top insider investors at X4 Pharmaceuticals.

Who are the major institutional investors of X4 Pharmaceuticals?

X4 Pharmaceuticals' top institutional investors include:
  1. Empery Asset Management LP — 10.24%
  2. Bain Capital Life Sciences Investors LLC — 9.11%
  3. Perceptive Advisors LLC — 7.22%
  4. Kalehua Capital Management LLC — 4.26%
  5. Braidwell LP — 3.85%
  6. Rosalind Advisors Inc. — 2.98%
Learn More about top institutional investors of X4 Pharmaceuticals stock.

Which major investors are selling X4 Pharmaceuticals stock?

During the last quarter, XFOR stock was sold by these institutional investors:
  1. Millennium Management LLC

Which major investors are buying X4 Pharmaceuticals stock?

In the last quarter, XFOR stock was bought by institutional investors including:
  1. Empery Asset Management LP
  2. Perceptive Advisors LLC
  3. Bain Capital Life Sciences Investors LLC
  4. Kalehua Capital Management LLC
  5. Braidwell LP
  6. Siren L.L.C.
  7. Rosalind Advisors Inc.
  8. Geode Capital Management LLC
In the last year, these company insiders have bought X4 Pharmaceuticals stock:
  1. Adam R Craig (Chairman)
  2. Paula Ragan (CEO)
Learn More investors buying X4 Pharmaceuticals stock.