SC 13G

Names of Reporting Persons

Marc Stad

Check the Appropriate Box if a Member of a Group (See Instructions)

(a) ☐ (b) ☐

SEC Use Only

Citizenship or Place of Organization

United States

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

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).

Sunlands Technology Group (f/k/a Sunlands Online Education Group) (the “Issuer”)

This Schedule 13G (the “Schedule 13G”) is being filed jointly by each of Marc Stad and Dragoneer Investment Group, LLC (collectively, the “Reporting Persons”).

The Reporting Persons have entered into a Joint Filing Agreement, dated February 14, 2019, a copy of which is attached as Exhibit A to this Schedule 13G, pursuant to which the Reporting Persons agreed to file this Schedule 13G and any amendments thereto jointly in accordance with the provisions of Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended (the “Act”).

The address of the principal business office for all Reporting Persons is: One Letterman Dr., Bldg D, Ste M500, San Francisco, CA 94129.

The citizenship or place of organization of each of the Reporting Persons is set forth on such Reporting Person’s cover page.

Item 3. If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:


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

(b)	☐	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)	☐	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)	☐	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);

(e)	☒	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f)	☐	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g)	☒	A parent holding company or control person in accordance with §240.13d-1(b)(1)(ii)(G);

(h)	☐	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)	☐	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)	☐	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J);

(k)	☐	Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:

The information set forth in Rows 5 through 11 of the cover pages to this Schedule 13G is incorporated herein by reference for each Reporting Person.

Dragoneer Investment Group, LLC (the “Dragoneer Adviser”) is a registered investment adviser under the Investment Advisers Act of 1940, as amended. As the managing member of Dragoneer Adviser, Cardinal DIG CC, LLC may also be deemed to share voting and dispositive power with respect to the Class A Ordinary Shares. Marc Stad is the sole member of Cardinal DIG CC, LLC. By virtue of these relationships, each of the Reporting Persons may be deemed to share beneficial ownership of the Class A Ordinary Shares of the Issuer.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following ☐.

Dragoneer Adviser serves as investment adviser to Dragoneer Global Fund II, L.P., a limited partnership (PN), which has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, greater than five percent of the outstanding Class A Ordinary Shares of the Issuer.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and 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, other than activities solely in connection with a nomination under § 240.14a-11.

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.


/s/ Marc Stad
Marc Stad

DRAGONEER INVESTMENT GROUP, LLC

By:		Cardinal DIG CC, LLC
Its:		Managing Member

By:		/s/ Pat Robertson
		Name: Pat Robertson Title: Chief Operating Officer


1.	Names of Reporting Persons Dragoneer Investment Group, LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (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 0
		6.	Shared Voting Power 126,822.20⁽³⁾
		7.	Sole Dispositive Power 0
		8.	Shared Dispositive Power 126,822.20⁽³⁾
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 126,822.20⁽³⁾
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) ☐
11.	Percent of Class Represented by Amount in Row (9) 7.0%⁽⁴⁾
12.	Type of Reporting Person (See Instructions) IA, OO


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