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Filing Details

Accession Number:: 0001457716-18-000036
Form Type:: 13G Filing
Publication Date:: 2018-02-07 15:13:40

Filed By:: Virtu Americas Llc
Company:: Sector 10 Inc (OTCMKTS:SECI)
Filing Date:: 2018-02-07
SEC Url:: 13G Filing

Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name	Sole Voting Power	Shared Voting Power	Sole Dispositive Power	Shared Dispositive Power	Aggregate Amount Owned Power	Percent of Class
Virtu Americas	23,106		23,106		23,106	7.56%

Filing

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________

Schedule 13G/A

Under the Securities Exchange Act of 1934

(Amendment 2)

____________________

Sector 10, Inc.

(Name of Issuer)

____________________

Common Stock

(Title of Class of Securities)

81371J307

(CUSIP Number)

December 29, 2017

(Date of Event Which Requires Filing of this Statement)

____________________

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

x Rule 13d-1(b)

¨ Rule 13d-1(c)

¨ Rule 13d-1(d)



*		The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13G/A



CUSIP No.		81371J307
1.	Name of reporting person I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (entities only) Virtu Americas LLC 26-4219373
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) ¨ (b) ¨
3.	SEC Use only
4.	Citizenship or place of organization Delaware
Number of shares beneficially owned by each reporting person with			5.	Sole voting power
				23,106
			6.	Shared voting power Not applicable
			7.	Sole dispositive power
				23,106
			8.	Shared dispositive power Not applicable
9.	Aggregate amount beneficially owned by each reporting person
	23,106
10.	Check box if the aggregate amount in Row (9) excludes certain shares* ¨
11.	Percent of class represented by amount in Row 9
	7.56%			based on outstanding shares as reported on the issuer's 10-Q filed with the SEC for the period ended December 31, 2017.
12.	Type of reporting person* BD




ITEM 1	(a).	Name of Issuer

		Sector 10, Inc.

ITEM 1	(b).	Address of Issuer’s Principal Executive Offices

		222 South Main Street, 5th Floor, Salt Lake City, UT 84101

ITEM 2	(a).	Names of Persons Filing

		Virtu Americas LLC

ITEM 2	(b).	Address of principal business office

		300 Vesey Street, New York, NY 10282

ITEM 2	(c).	Citizenship

		Delaware

ITEM 2	(d).	Title of Class of Securities

		Common Stock

ITEM 2	(e).	CUSIP Number

		81371J307

ITEM 3.	If this statement is filed pursuant to Rules 13d-1(b), or 13(d)-2(b), check whether the person filing it is a:

	(a)	x	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).




ITEM 4.	Ownership

(a)		Amount beneficially owned

		23,106

(b)		Percent of class

		7.56 %

(c)		Number of shares as to which such person has:

		(i)	sole power to vote or to direct the vote

			23,106

		(ii)	shared power to vote or to direct the vote

			Not applicable

		(iii)	sole power to dispose or to direct the disposition of

			23,106

		(iv)	shared power to dispose or to direct the disposition of

			Not applicable

ITEM 5.	Ownership of Five Percent or Less of a Class

Not applicable

ITEM 6.	Ownership of More than Five Percent on Behalf of Another Person

Not applicable

ITEM 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company

Not applicable.

ITEM 8.	Identification and Classification of Members of the Group

Not applicable.

ITEM 9.	Notice of Dissolution of Group

Not applicable.

ITEM 10.	Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 7, 2018




Virtu Americas LLC

By:		/s/ Christy Oeth
		Christy Oeth
		Chief Compliance Officer