# X2 Biosystems, Inc.: Form D filings

X2 Biosystems, Inc., a biotechnology company in Seattle, WA, filed 13 Form D notices with the SEC between 2010 and 2015. The latest, on April 16, 2015, reports $350,000 sold of a $350,000 offering to 3 investors.

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## The full lists

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- [Form D filings in Biotechnology](https://specstream.ai/data/form-d/industry/biotechnology): 1,568 rows, by operating companies, filed since November 1, 2024, $78.40, or the new rows each week for $19 a month. Buy: https://specstream.ai/data/form-d/industry/biotechnology

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## Company details from the filing

- Address: 1927 POST ALLEY, SUITE 200, Seattle, WA, 98101
- Phone: (206) 351-0004
- Industry: Biotechnology
- Entity type: Corporation
- Incorporated in: Washington
- Revenue range: Decline to Disclose
- Exemptions claimed: Rule 506(b)
- SEC identifier (CIK): 1495809

## Form D filings

| Filed | Type | Offering | Sold | Remaining | Investors | First sale | Filing |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Apr 16, 2015 | New notice | $350,000 | $350,000 | $0 | 3 | Mar 2, 2015 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580915000004/0001495809-15-000004-index.htm) |
| Nov 20, 2014 | Amendment | $9,000,000 | $4,220,000 | $4,780,000 | 41 | Apr 7, 2014 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580914000002/0001495809-14-000002-index.htm) |
| Apr 18, 2014 | New notice | $9,000,000 | $2,510,000 | $6,490,000 | 17 | Apr 7, 2014 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580914000001/0001495809-14-000001-index.htm) |
| Dec 19, 2013 | New notice | $5,000,000 | $0 | $5,000,000 | 0 | Yet to occur | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580913000005/0001495809-13-000005-index.htm) |
| Jul 12, 2013 | New notice | $800,000 | $720,000 | $80,000 | 8 | Jul 3, 2013 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580913000004/0001495809-13-000004-index.htm) |
| Jun 19, 2013 | Amendment | $12,500,000 | $3,273,021 | $9,226,979 | 18 | Jul 20, 2012 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580913000003/0001495809-13-000003-index.htm) |
| Feb 13, 2013 | Amendment | $2,500,000 | $2,115,981 | $384,019 | 18 | Jul 20, 2012 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580913000002/0001495809-13-000002-index.htm) |
| Aug 17, 2012 | New notice | $2,500,000 | $375,000 | $2,125,000 | 2 | Jul 20, 2012 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580912000001/0001495809-12-000001-index.htm) |
| Sep 13, 2011 | New notice | $3,500,000 | $350,000 | $3,150,000 | 5 | Aug 1, 2011 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580911000005/0001495809-11-000005-index.htm) |
| May 17, 2011 | Amendment | $2,200,000 | $1,970,000 | $230,000 | 30 | May 17, 2010 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580911000004/0001495809-11-000004-index.htm) |
| Jan 5, 2011 | Amendment | $1,500,000 | $1,105,000 | $395,000 | 12 | May 17, 2010 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580911000003/0001495809-11-000003-index.htm) |
| Jan 4, 2011 | Amendment | $1,500,000 | $1,105,000 | $395,000 | 12 | May 17, 2010 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580911000002/0001495809-11-000002-index.htm) |
| Jul 2, 2010 | New notice | $1,000,000 | $200,000 | $800,000 | 3 | May 17, 2010 | [sec.gov](https://www.sec.gov/Archives/edgar/data/1495809/000149580910000001/0001495809-10-000001-index.htm) |

## Executive officers and directors named in the filing

| Name | Role | Note in the filing |
| --- | --- | --- |
| John Ralston | Executive Officer, Director |  |

## Other biotechnology companies in Washington that filed recently

- [Key Proteo, Inc.](https://specstream.ai/data/form-d/company/key-proteo-inc-1977784) $2.3 million · Oct 23, 2026
- [Inmedix, Inc.](https://specstream.ai/data/form-d/company/inmedix-inc-1851853) $4 million · Oct 22, 2026
- [Q-Immune, Inc.](https://specstream.ai/data/form-d/company/q-immune-inc-2155816) $25,000 · Sep 28, 2026
- [Hexamer Therapeutics, Inc](https://specstream.ai/data/form-d/company/hexamer-therapeutics-inc-1797915) $500,000 · Sep 15, 2026
- [MalarVx, Inc.](https://specstream.ai/data/form-d/company/malarvx-inc-1559688) $125,000 · Aug 25, 2026
- [Strella Biotechnology, Inc.](https://specstream.ai/data/form-d/company/strella-biotechnology-inc-1810011) $1.8 million · Aug 14, 2026

[Every Form D from the week of Apr 13, 2015](https://specstream.ai/data/form-d/week/2015-04-13) · [All recent filings in Washington](https://specstream.ai/data/form-d/state/washington) · [All recent Biotechnology filings](https://specstream.ai/data/form-d/industry/biotechnology)

Read from SEC EDGAR. Amount sold is what X2 Biosystems, Inc. reported on the day it filed; on an offering that is still open, a later amendment can raise it. Free to reuse with credit to SpecStream under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).