Document:

EX-10.4

 Exhibit 10.4 

REGISTRATION RIGHTS AGREEMENT 

THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is entered into as of the __ day of ______, 2021, by and among
Northern Star Investment Corp. II, a Delaware corporation (the “Company”) and the undersigned parties listed under Investors on the signature page hereto (each, an “Investor” and collectively, the
“Investors”). 
 WHEREAS, the Investors and the Company desire to enter into this Agreement to provide the Investors
with certain rights relating to the registration of the securities held by them as of the date hereof or that may be held by them upon consummation of a Business Combination (defined below); 

NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows: 
 1. DEFINITIONS. The following
capitalized terms used herein have the following meanings: 
 “Agreement” means this Agreement, as amended, restated,
supplemented, or otherwise modified from time to time. 
 “Business Combination” means the acquisition of direct or
indirect ownership through a merger, share exchange, asset acquisition, share purchase, recapitalization, reorganization or other similar type of transaction, of one or more businesses or entities. 

“Commission” means the Securities and Exchange Commission, or any other Federal agency then administering the
Securities Act or the Exchange Act. 
 “Common Stock” means the Class A common stock, par value $0.0001 per
share, of the Company. 
 “Company” is defined in the preamble to this Agreement. 

“Demand Registration” is defined in Section 2.1.1. 

“Demanding Holder” is defined in Section 2.1.1. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission
promulgated thereunder, all as the same shall be in effect at the time. 
 “Form S-3” is defined in Section 2.3. 
 “Founder Shares” means
all of the outstanding shares of Class B Common Stock of the Company issued prior to the consummation of its initial public offering. 

“Indemnified Party” is defined in Section 4.3. 

“Indemnifying Party” is defined in Section 4.3. 

“Investor” is defined in the preamble to this Agreement. 

“Investor Indemnified Party” is defined in Section 4.1. 

“Maximum Number of Shares” is defined in Section 2.1.4. 

“Notices” is defined in Section 6.3. 

 “Piggy-Back Registration” is defined in Section 2.2.1. 

“Private Warrants” means the Warrants the Investors are privately purchasing simultaneously with the consummation of
the Company’s initial public offering. 
 “Pro Rata” is defined in Section 2.1.4. 

“Register,” “Registered” and “Registration” mean a registration
effected by preparing and filing a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder, and such registration statement becoming
effective. 
 “Registrable Securities” means (i) the Founder Shares, (ii) the Private Warrants and
(iii) the Working Capital Warrants, if any. Registrable Securities include any warrants, shares of capital stock or other securities of the Company underlying or issued as a dividend or other distribution with respect to or in exchange for or
in replacement of or upon conversion of such Founder Shares. As to any particular Registrable Securities, such securities shall cease to be Registrable Securities when: (a) a Registration Statement with respect to the sale of such securities
shall have become effective under the Securities Act and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (b) such securities shall have been otherwise transferred, new
certificates for them not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of them shall not require registration under the Securities Act; (c) such securities shall have
ceased to be outstanding, or (d) the Registrable Securities are freely saleable under Rule 144 under the Securities Act without volume limitations. 

“Registration Statement” means a registration statement filed by the Company with the Commission in compliance with
the Securities Act and the rules and regulations promulgated thereunder for a public offering and sale of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into, equity securities (other than a
registration statement on Form S-4 or Form S-8, or their successors, or any registration statement covering only securities proposed to be issued in
exchange for securities or assets of another entity). 
 “Representative” means Citigroup Global Markets Inc. 

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations of the Commission
promulgated thereunder, all as the same shall be in effect at the time. 
 “Underwriter” means a securities dealer
who purchases any Registrable Securities as principal in an underwritten offering and not as part of such dealer’s market-making activities. 

“Units” means the units of the Company, each comprised of one share of Common Stock and one-fifth of one warrant, each
whole warrant to purchase one share of Common Stock. 
 “Working Capital Warrants” means any Warrants held by
Investors, officers or directors of the Company or their affiliates which may be issued in payment of working capital loans made to the Company. 

2. REGISTRATION RIGHTS. 

2.1 Demand Registration. 

2.1.1. Request for Registration. At any time and from time to time on or after the date that the Company consummates a
Business Combination, the Investors may make a written demand for registration under the Securities Act of all or part of their Registrable Securities (a “Demand Registration”). Any demand for a Demand Registration shall
specify the number of shares of Registrable Securities proposed to be sold and the intended method(s) of distribution thereof. The Company will within 10 days of the Company’s receipt of the Demand Registration notify all holders of Registrable
Securities of the demand, and each holder of Registrable Securities who wishes to include all or a portion of such holder’s Registrable Securities in the Demand Registration (each such holder including shares of Registrable Securities in such
registration, a “Demanding Holder”) shall so notify the Company within ten (10) days after the receipt by the holder of the notice from the Company. Upon any such request, the Demanding Holders shall be entitled to have
their Registrable Securities included in the Demand Registration, subject to Section 2.1.4 and the provisos set forth in Section 3.1.1. The Company shall not be obligated to effect more than an aggregate of three (3) Demand
Registrations under this Section 2.1.1 in respect of all Registrable Securities. 

 2.1.2 Effective Registration. A registration will not count as a Demand
Registration until the Registration Statement filed with the Commission with respect to such Demand Registration has been declared effective and the Company has complied with all of its obligations under this Agreement with respect thereto;
provided, however, that if, after such Registration Statement has been declared effective, the offering of Registrable Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other
governmental agency or court, the Registration Statement with respect to such Demand Registration will be deemed not to have been declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise
terminated, and (ii) a majority-in-interest of the Demanding Holders thereafter elect to continue the offering; provided, further, that the Company shall
not be obligated to file a second Registration Statement until a Registration Statement that has been filed is counted as a Demand Registration or is terminated. 

2.1.3 Underwritten Offering. If
a majority-in-interest of the Demanding Holders so elect and such holders so advise the Company as part of their written demand for a Demand Registration, the
offering of such Registrable Securities pursuant to such Demand Registration shall be in the form of an underwritten offering. In such event, the right of any holder to include its Registrable Securities in such registration shall be conditioned
upon such holder’s participation in such underwriting and the inclusion of such holder’s Registrable Securities in the underwriting to the extent provided herein. All Demanding Holders proposing to distribute their Registrable Securities
through such underwriting shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such underwriting by
a majority-in-interest of the holders initiating the Demand Registration. 

2.1.4 Reduction of Offering. If the managing Underwriter or Underwriters for a Demand Registration that is to be an underwritten
offering, in good faith, advises the Company and the Demanding Holders in writing that the dollar amount or number of shares of Registrable Securities which the Demanding Holders desire to sell, taken together with all other shares of Common Stock
or other securities which the Company desires to sell and the shares of Common Stock, if any, as to which registration has been requested pursuant to written contractual piggy-back registration rights held by other stockholders of the Company who
desire to sell, exceeds the maximum dollar amount or maximum number of shares that can be sold in such offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability of success of such
offering (such maximum dollar amount or maximum number of shares, as applicable, the “Maximum Number of Shares”), then the Company shall include in such registration: (i) first, the Registrable Securities as to which
Demand Registration has been requested by the Demanding Holders (pro rata in accordance with the number of shares that each such Person has requested be included in such registration, regardless of the number of shares held by each such Person (such
proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Shares; (ii) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing
clause (i), the shares of Common Stock or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; (iii) third, to the extent that the Maximum Number of Shares has not been reached under
the foregoing clauses (i) and (ii), the Registrable Securities of holders exercising their rights to register their Registrable Securities pursuant to Section 2.2; and (iv) fourth, to the extent that the Maximum Number of Shares has
not been reached under the foregoing clauses (i), (ii) and (iii), the shares of Common Stock or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such
persons and that can be sold without exceeding the Maximum Number of Shares. 
 2.1.5 Withdrawal. If a majority-in-interest of the Demanding Holders disapprove of the terms of any underwriting or are not entitled to include all of their Registrable Securities in any
offering, such majority-in-interest of the Demanding Holders may elect to withdraw from such offering by giving written notice to the Company and the
Underwriter or Underwriters of their request to withdraw prior to the effectiveness of the Registration Statement filed with the Commission with respect to such Demand Registration. If
the majority-in-interest of the Demanding Holders withdraws from a proposed offering relating to a Demand Registration, then such registration shall not count
as a Demand Registration provided for in Section 2.1. 

 2.2 Piggy-Back Registration. 

2.2.1 Piggy-Back Rights. If at any time on or after the date the Company consummates a Business Combination the Company proposes to
file a Registration Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into, equity securities, by the Company for its own account
or for shareholders of the Company for their account (or by the Company and by shareholders of the Company including, without limitation, pursuant to Section 2.1), other than a Registration Statement (i) filed in connection with any
employee stock option or other benefit plan, (ii) for an exchange offer or offering of securities solely to the Company’s existing shareholders, (iii) for an offering of debt that is convertible into equity securities of the Company
or (iv) for a dividend reinvestment plan, then the Company shall (x) give written notice of such proposed filing to the holders of Registrable Securities as soon as practicable but in no event less than ten (10) days before the
anticipated filing date, which notice shall describe the amount and type of securities to be included in such offering, the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, of the
offering, and (y) offer to the holders of Registrable Securities in such notice the opportunity to register the sale of such number of shares of Registrable Securities as such holders may request in writing within five (5) days following
receipt of such notice (a “Piggy-Back Registration”). The Company shall, in good faith, cause such Registrable Securities to be included in such registration and shall use its best efforts to cause the managing Underwriter or
Underwriters of a proposed underwritten offering to permit the Registrable Securities requested to be included in a Piggy-Back Registration on the same terms and conditions as any similar securities of the Company and to permit the sale or other
disposition of such Registrable Securities in accordance with the intended method(s) of distribution thereof. All holders of Registrable Securities proposing to distribute their securities through a Piggy-Back Registration that involves an
Underwriter or Underwriters shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such Piggy-Back Registration. 

2.2.2 Reduction of Offering. If the managing Underwriter or Underwriters for a Piggy-Back Registration that is to be an
underwritten offering advises the Company and the holders of Registrable Securities in writing that the dollar amount or number of shares of Common Stock which the Company desires to sell, taken together with shares of Common Stock, if any, as to
which registration has been demanded pursuant to separate written contractual arrangements with persons or entities other than the holders of Registrable Securities hereunder, the Registrable Securities as to which registration has been requested
under this Section 2.2, and the shares of Common Stock, if any, as to which registration has been requested pursuant to the written contractual piggy-back registration rights of other stockholders of the Company, exceeds the Maximum Number of
Shares, then the Company shall include in any such registration: 
 a) If the registration is undertaken for the Company’s account:
(A) the shares of Common Stock or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; (B) to the extent that the Maximum Number of Shares has not been reached under the
foregoing clause (A), the shares of Common Stock or other securities, if any, comprised of Registrable Securities, as to which registration has been requested pursuant to the applicable written contractual piggy-back registration rights of such
security holders, Pro Rata, that can be sold without exceeding the Maximum Number of Shares; and (C) to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A) and (B), the shares of Common Stock
or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual piggy-back registration rights with such persons and that can be sold without exceeding the Maximum Number of Shares; and

 b) If the registration is a “demand” registration undertaken at the demand of persons or entities other than either the holders
of Registrable Securities, (A) first, the shares of Common Stock or other securities for the account of the demanding persons that can be sold without exceeding the Maximum Number of Shares; (B) second, to the extent that the Maximum
Number of Shares has not been reached under the foregoing clause (A), the Common Stock or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; (C) third, to the extent that the
Maximum Number of Shares has not been reached under the foregoing clauses (A) and (B), collectively the Common Stock or other securities comprised of Registrable Securities, Pro Rata, as to which registration has been requested pursuant to the
terms hereof, as applicable, that can be sold without exceeding the Maximum Number of Shares; and (D) fourth, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (A), (B) and (C), the shares of
Common Stock or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such persons, that can be sold without exceeding the Maximum Number of Shares. 

 2.2.3 Withdrawal. Any holder of Registrable Securities may elect to withdraw
such holder’s request for inclusion of Registrable Securities in any Piggy-Back Registration by giving written notice to the Company of such request to withdraw prior to the effectiveness of the Registration Statement. The Company (whether on
its own determination or as the result of a withdrawal by persons making a demand pursuant to written contractual obligations) may withdraw a Registration Statement at any time prior to the effectiveness of such Registration Statement.
Notwithstanding any such withdrawal, the Company shall pay all expenses incurred by the holders of Registrable Securities in connection with such Piggy-Back Registration as provided in Section 3.3. 

2.2.4 Unlimited Piggy-Back Registration Rights. For purposes of clarity, any registration effected pursuant to
Section 2.2 hereof shall not be counted as a registration pursuant to a Demand Registration effected under Section 2.1 hereof. 

2.2.5 Registrations on Form S-3. The holders of Registrable Securities may at any time
and from time to time request in writing that the Company register the resale of any or all of such Registrable Securities on Form S-3 or any similar short-form registration which may be available at
such time (“Form S-3”); provided, however, that the Company shall not be obligated to effect such request through an underwritten offering. Within five
(5) days of the Company’s receipt of such written request, the Company will give written notice of the proposed registration to all other holders of Registrable Securities, and each holder of Registrable Securities who thereafter wishes to
include all or a portion of such holder’s Registrable Securities in such registration shall so notify the Company, in writing, within ten (10) days after the receipt by the holder of the notice from the Company, and, as soon as practicable
thereafter but not more than twelve (12) days after the Company’s initial receipt of such written request for a registration, effect the registration of all or such portion of such holder’s or holders’ Registrable Securities as
are specified in such request, together with all or such portion of the Registrable Securities or other securities of the Company, if any, of any other holder or holders joining in such request; provided, however, that the Company shall not be
obligated to effect any such registration pursuant to this Section 2.3: (i) if Form S-3 is not available for such offering; or (ii) if the holders of the Registrable Securities, together
with the holders of any other securities of the Company entitled to inclusion in such registration, propose to sell Registrable Securities and such other securities (if any) at any aggregate price to the public of less than $500,000. Registrations
effected pursuant to this Section 2.3 shall not be counted as Demand Registrations effected pursuant to Section 2.1. 

3. REGISTRATION PROCEDURES. 

3.1 Filings; Information. Whenever the Company is required to effect the registration of any Registrable Securities pursuant to
Section 2, the Company shall use its best efforts to effect the registration and sale of such Registrable Securities in accordance with the intended method(s) of distribution thereof as expeditiously as practicable, and in connection with any
such request: 
 3.1.1 Filing Registration Statement. The Company shall, as expeditiously as possible and in any event within
sixty (60) days after receipt of a request for a Demand Registration pursuant to Section 2.1, prepare and file with the Commission a Registration Statement on any form for which the Company then qualifies or which counsel for the Company
shall deem appropriate and which form shall be available for the sale of all Registrable Securities to be registered thereunder in accordance with the intended method(s) of distribution thereof, and shall use its best efforts to cause such
Registration Statement to become effective and use its best efforts to keep it effective for the period required by Section 3.1.3; provided, however, that the Company shall have the right to defer any Demand Registration for up to thirty
(30) days, and any Piggy-Back Registration for such period as may be applicable to deferment of any demand registration to which such Piggy-Back Registration relates, in each case if the Company shall furnish to the holders a certificate signed
by the President or Chairman of the Company stating that, in the good faith judgment of the Board of Directors of the Company, it would be materially detrimental to the Company and its shareholders for such Registration Statement to be effected at
such time; provided further, however, that the Company shall not have the right to exercise the right set forth in the immediately preceding proviso more than once in any 365-day period in respect of
a Demand Registration hereunder. 
 3.1.2 Copies. The Company shall, prior to filing a Registration Statement or prospectus, or
any amendment or supplement thereto, furnish without charge to the holders of Registrable Securities included in such registration, and such holders’ legal counsel, copies of such Registration Statement as proposed to be filed, each amendment
and supplement to such Registration Statement (in each case including all exhibits thereto and 

 
documents incorporated by reference therein), the prospectus included in such Registration Statement (including each preliminary prospectus), and such other documents as the holders of
Registrable Securities included in such registration or legal counsel for any such holders may request in order to facilitate the disposition of the Registrable Securities owned by such holders. 

3.1.3 Amendments and Supplements. The Company shall prepare and file with the Commission such amendments, including post-effective
amendments, and supplements to such Registration Statement and the prospectus used in connection therewith as may be necessary to keep such Registration Statement effective and in compliance with the provisions of the Securities Act until all
Registrable Securities and other securities covered by such Registration Statement have been disposed of in accordance with the intended method(s) of distribution set forth in such Registration Statement or such securities have been withdrawn. 

3.1.4 Notification. After the filing of a Registration Statement, the Company shall promptly, and in no event more than two
(2) business days after such filing, notify the holders of Registrable Securities included in such Registration Statement of such filing, and shall further notify such holders promptly and confirm such advice in writing in all events within two
(2) business days of the occurrence of any of the following: (i) when such Registration Statement becomes effective; (ii) when any post-effective amendment to such Registration Statement becomes effective; (iii) the issuance or
threatened issuance by the Commission of any stop order (and the Company shall take all actions required to prevent the entry of such stop order or to remove it if entered); and (iv) any request by the Commission for any amendment or supplement
to such Registration Statement or any prospectus relating thereto or for additional information or of the occurrence of an event requiring the preparation of a supplement or amendment to such prospectus so that, as thereafter delivered to the
purchasers of the securities covered by such Registration Statement, such prospectus will not contain an untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein
not misleading, and promptly make available to the holders of Registrable Securities included in such Registration Statement any such supplement or amendment; except that before filing with the Commission a Registration Statement or prospectus or
any amendment or supplement thereto, including documents incorporated by reference, the Company shall furnish to the holders of Registrable Securities included in such Registration Statement and to the legal counsel for any such holders, copies of
all such documents proposed to be filed sufficiently in advance of filing to provide such holders and legal counsel with a reasonable opportunity to review such documents and comment thereon, and the Company shall not file any Registration Statement
or prospectus or amendment or supplement thereto, including documents incorporated by reference, to which such holders or their legal counsel shall object. 

3.1.5 State Securities Laws Compliance. The Company shall use its best efforts to (i) register or qualify the Registrable
Securities covered by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the holders of Registrable Securities included in such Registration Statement (in light of their
intended plan of distribution) may request and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such other governmental authorities as may be
necessary by virtue of the business and operations of the Company and do any and all other acts and things that may be necessary or advisable to enable the holders of Registrable Securities included in such Registration Statement to consummate the
disposition of such Registrable Securities in such jurisdictions; provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify but for this
paragraph or subject itself to taxation in any such jurisdiction. 
 3.1.6 Agreements for Disposition. The Company shall enter
into customary agreements (including, if applicable, an underwriting agreement in customary form) and take such other actions as are reasonably required in order to expedite or facilitate the disposition of such Registrable Securities. The
representations, warranties and covenants of the Company in any underwriting agreement which are made to or for the benefit of any Underwriters, to the extent applicable, shall also be made to and for the benefit of the holders of Registrable
Securities included in such registration statement. No holder of Registrable Securities included in such registration statement shall be required to make any representations or warranties in the underwriting agreement except, if applicable, with
respect to such holder’s organization, good standing, authority, title to Registrable Securities, lack of conflict of such sale with such holder’s material agreements and organizational documents, and with respect to written information
relating to such holder that such holder has furnished in writing expressly for inclusion in such Registration Statement. 

 3.1.7 Cooperation. The principal executive officer of the Company, the principal
financial officer of the Company, the principal accounting officer of the Company and all other officers and members of the management of the Company shall cooperate fully in any offering of Registrable Securities hereunder, which cooperation shall
include, without limitation, the preparation of the Registration Statement with respect to such offering and all other offering materials and related documents, and participation in meetings with Underwriters, attorneys, accountants and potential
investors. 
 3.1.8 Records. The Company shall make available for inspection by the holders of Registrable Securities included in
such Registration Statement, any Underwriter participating in any disposition pursuant to such registration statement and any attorney, accountant or other professional retained by any holder of Registrable Securities included in such Registration
Statement or any Underwriter, all financial and other records, pertinent corporate documents and properties of the Company, as shall be necessary to enable them to exercise their due diligence responsibility, and cause the Company’s officers,
directors and employees to supply all information requested by any of them in connection with such Registration Statement. 

3.1.9 Opinions and Comfort Letters. The Company shall furnish to each holder of Registrable Securities included in any Registration
Statement a signed counterpart, addressed to such holder, of (i) any opinion of counsel to the Company delivered to any Underwriter and (ii) any comfort letter from the Company’s independent public accountants delivered to any
Underwriter. In the event no legal opinion is delivered to any Underwriter, the Company shall furnish to each holder of Registrable Securities included in such Registration Statement, at any time that such holder elects to use a prospectus, an
opinion of counsel to the Company to the effect that the Registration Statement containing such prospectus has been declared effective and that no stop order is in effect. 

3.1.10 Earnings Statement. The Company shall comply with all applicable rules and regulations of the Commission and the Securities
Act, and make available to its shareholders, as soon as practicable, an earnings statement covering a period of twelve (12) months, which earnings statement shall satisfy the provisions of Section 11(a) of the Securities Act and Rule 158
thereunder. 
 3.1.11 Listing. The Company shall use its best efforts to cause all Registrable Securities included in any
registration to be listed on such exchanges or otherwise designated for trading in the same manner as similar securities issued by the Company are then listed or designated or, if no such similar securities are then listed or designated, in a manner
satisfactory to the holders of a majority of the Registrable Securities included in such registration. 
 3.1.12. Transfer
Agent. The Company shall provide a transfer agent or warrant agent, as applicable, and registrar for all such Registrable Securities no later than the effective date of the registration statement. 

3.1.13. Misstatements. The Company shall notify the holders at any time when a prospectus relating to such registration
statement is required to be delivered under the Securities Act, of the happening of any event as a result of which the prospectus included in such registration statement, as then in effect, includes an untrue statement of a material fact or an
omission to state a material fact required to be stated in a registration statement or prospectus, or necessary to make the statements therein in the light of the circumstances under which they were made not misleading (a
“Misstatement”), and then to correct such Misstatement. 
 3.1.14 Road Show. If the registration
involves the registration of Registrable Securities involving gross proceeds in excess of $25,000,000, the Company shall use its reasonable efforts to make available senior executives of the Company to participate in customary “road show”
presentations that may be reasonably requested by the Underwriter in any underwritten offering. 
 3.2 Obligation to Suspend
Distribution. Upon receipt of any notice from the Company of the happening of any event of the kind described in Section 3.1.4(iv), or, in the case of a resale registration on
Form S-3 pursuant to Section 2.3 hereof, upon any suspension by the Company, pursuant to a written insider trading compliance program adopted by the Company’s Board of Directors, of the
ability of all “insiders” covered by such program to transact in the Company’s securities because of the existence of material non-public information, each of Registrable Securities
included in any registration shall immediately discontinue disposition of such Registrable Securities pursuant to the Registration Statement covering such Registrable Securities until such holder receives the supplemented or amended prospectus
contemplated by Section 3.1.4(iv) or the restriction on the ability of “insiders” to transact in the Company’s securities is removed, as applicable, and, if so directed by the Company, each such holder will deliver to the Company
all written copies, other than permanent file copies then in such holder’s possession, of the most recent prospectus covering such Registrable Securities at the time of receipt of such notice. 

 3.3 Registration Expenses. The Company shall bear all costs and expenses
incurred in connection with any Demand Registration pursuant to Section 2.1, any Piggy-Back Registration pursuant to Section 2.2, and any registration on Form S-3 effected pursuant to
Section 2.2.5, and all expenses incurred in performing or complying with its other obligations under this Agreement, whether or not the Registration Statement becomes effective, including, without limitation: (i) all registration and
filing fees and fees of any securities exchange on which the Common Stock is then listed; (ii) fees and expenses of compliance with securities or “blue sky” laws (including fees and disbursements of counsel for the Underwriters in
connection with blue sky qualifications of the Registrable Securities); (iii) printing, messenger, telephone and delivery expenses; (iv) the Company’s internal expenses (including, without limitation, all salaries and expenses of its
officers and employees); (v) the fees and expenses incurred in connection with the listing of the Registrable Securities as required by Section 3.1.11; (vi) Financial Industry Regulatory Authority fees; (vii) fees and disbursements of
counsel for the Company and fees and expenses for independent certified public accountants retained by the Company (including the expenses or costs associated with the delivery of any opinions or comfort letters requested pursuant to
Section 3.1.9); (viii) the fees and expenses of any special experts retained by the Company in connection with such registration and (ix) the fees and expenses of one legal counsel selected by the holders of
a majority-in-interest of the Registrable Securities included in such registration. The Company shall have no obligation to pay any underwriting discounts or
selling commissions attributable to the Registrable Securities being sold by the holders thereof, which underwriting discounts or selling commissions shall be borne by such holders. Additionally, in an underwritten offering, all selling shareholders
and the Company shall bear the expenses of the Underwriter pro rata in proportion to the respective amount of shares each is selling in such offering. 

3.4 Information. The holders of Registrable Securities shall provide such information as may reasonably be requested by the
Company, or the managing Underwriter, if any, in connection with the preparation of any Registration Statement, including amendments and supplements thereto, in order to effect the registration of any Registrable Securities under the Securities Act
pursuant to Section 2 and in connection with the Company’s obligation to comply with federal and applicable state securities laws. 

3.5 Suspension of Sales; Adverse Disclosure. Upon receipt of written notice from the Company that a registration statement
or prospectus contains a Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until it has received copies of a supplemented or amended prospectus correcting the Misstatement (it being understood that
the Company hereby covenants to prepare and file such supplement or amendment as soon as practicable after the time of such notice), or until it is advised in writing by the Company that the use of the prospectus may be resumed. If the filing,
initial effectiveness or continued use of a registration statement in respect of any registration at any time would require the Company to make an Adverse Disclosure (as defined below) or would require the inclusion in such registration statement of
financial statements that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written notice of such action to the holders, delay the filing or initial effectiveness of, or suspend use
of, such registration statement for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be necessary for such purpose. In the event the Company exercises its rights under the
preceding sentence, the holders agree to suspend, immediately upon their receipt of the notice referred to above, their use of the prospectus relating to any registration in connection with any sale or offer to sell Registrable Securities. The
Company shall immediately notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.5. “Adverse Disclosure” shall mean any public disclosure of material non-public information, which disclosure, in the good faith judgment of the Chief Executive Officer or principal financial officer of the Company, after consultation with counsel to the Company,
(i) would be required to be made in any registration statement or prospectus in order for the applicable registration statement or prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to
make the statements contained therein (in the case of any prospectus and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (ii) would not be required to be made at such time if the
registration statement were not being filed, and (iii) the Company has a bona fide business purpose for not making such information public. 

3.6 Reporting Obligations. As long as any holder shall own Registrable Securities, the Company, at all times while it shall
be reporting under the Exchange Act, covenants to file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required to be filed by the Company after the date hereof pursuant to Sections 13(a) or
15(d) of the Exchange Act and to promptly furnish the holders with true and complete copies of all such filings. The Company further covenants that it shall take such further action as any holder may

 
reasonably request, all to the extent required from time to time to enable such holder to sell Common Stock held by such holder without registration under the Securities Act within the limitation
of the exemptions provided by Rule 144 promulgated under the Securities Act, including providing any legal opinions. Upon the request of any holder, the Company shall deliver to such holder a written certification of a duly authorized officer as to
whether it has complied with such requirements. 
 3.7 Limitations on Registration Rights. Notwithstanding anything herein to the
contrary, (i) the Representative may not exercise its rights under Section 2.1 and 2.2 hereunder after five (5) and seven (7) years after the effective date of the registration statement relating to the Company’s initial
public offering, respectively, and (ii) the Representative may not exercise its rights under Section 2.1 more than one time. 

4. INDEMNIFICATION AND CONTRIBUTION. 

4.1 Indemnification by the Company. The Company agrees to indemnify and hold harmless each Investor and each other holder of
Registrable Securities, and each of their respective officers, employees, affiliates, directors, partners, members, attorneys and agents, and each person, if any, who controls an Investor and each other holder of Registrable Securities (within the
meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) (each, an “Investor Indemnified Party”), from and against any expenses, losses, judgments, claims, damages or liabilities, whether joint
or several, arising out of or based upon any untrue statement (or allegedly untrue statement) of a material fact contained in any Registration Statement under which the sale of such Registrable Securities was registered under the Securities Act, any
preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement, or any amendment or supplement to such Registration Statement, or arising out of or based upon any omission (or alleged omission) to state a
material fact required to be stated therein or necessary to make the statements therein not misleading, or any violation by the Company of the Securities Act or any rule or regulation promulgated thereunder applicable to the Company and relating to
action or inaction required of the Company in connection with any such registration; and the Company shall promptly reimburse the Investor Indemnified Party for any legal and any other expenses reasonably incurred by such Investor Indemnified Party
in connection with investigating and defending any such expense, loss, judgment, claim, damage, liability or action; provided, however, that the Company will not be liable in any such case to the extent that any such expense, loss, claim, damage or
liability arises out of or is based upon any untrue statement or allegedly untrue statement or omission or alleged omission made in such Registration Statement, preliminary prospectus, final prospectus, or summary prospectus, or any such amendment
or supplement, in reliance upon and in conformity with information furnished to the Company, in writing, by such selling holder expressly for use therein. The Company also shall indemnify any Underwriter of the Registrable Securities, their
officers, affiliates, directors, partners, members and agents and each person who controls such Underwriter on substantially the same basis as that of the indemnification provided above in this Section 4.1. 

4.2 Indemnification by Holders of Registrable Securities. Each selling holder of Registrable Securities will, in the event that any
registration is being effected under the Securities Act pursuant to this Agreement of any Registrable Securities held by such selling holder, indemnify and hold harmless the Company, each of its directors and officers and each Underwriter (if any),
and each other selling holder and each other person, if any, who controls another selling holder or such Underwriter within the meaning of the Securities Act, against any losses, claims, judgments, damages or liabilities, whether joint or several,
insofar as such losses, claims, judgments, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or allegedly untrue statement of a material fact contained in any Registration Statement under
which the sale of such Registrable Securities was registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement, or any amendment or supplement to the Registration
Statement, or arise out of or are based upon any omission or the alleged omission to state a material fact required to be stated therein or necessary to make the statement therein not misleading, if the statement or omission was made in reliance
upon and in conformity with information furnished in writing to the Company by such selling holder expressly for use therein, and shall reimburse the Company, its directors and officers, and each other selling holder or controlling person for any
legal or other expenses reasonably incurred by any of them in connection with investigation or defending any such loss, claim, damage, liability or action. Each selling holder’s indemnification obligations hereunder shall be several and not
joint and shall be limited to the amount of any net proceeds actually received by such selling holder. 

 4.3 Conduct of Indemnification Proceedings. Promptly after receipt by any person
of any notice of any loss, claim, damage or liability or any action in respect of which indemnity may be sought pursuant to Section 4.1 or 4.2, such person (the “Indemnified Party”) shall, if a claim in respect thereof
is to be made against any other person for indemnification hereunder, notify such other person (the “Indemnifying Party”) in writing of the loss, claim, judgment, damage, liability or action; provided, however, that the
failure by the Indemnified Party to notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability which the Indemnifying Party may have to such Indemnified Party hereunder, except and solely to the extent the Indemnifying
Party is actually prejudiced by such failure. If the Indemnified Party is seeking indemnification with respect to any claim or action brought against the Indemnified Party, then the Indemnifying Party shall be entitled to participate in such claim
or action, and, to the extent that it wishes, jointly with all other Indemnifying Parties, to assume control of the defense thereof with counsel satisfactory to the Indemnified Party. After notice from the Indemnifying Party to the Indemnified Party
of its election to assume control of the defense of such claim or action, the Indemnifying Party shall not be liable to the Indemnified Party for any legal or other expenses subsequently incurred by the Indemnified Party in connection with the
defense thereof other than reasonable costs of investigation; provided, however, that in any action in which both the Indemnified Party and the Indemnifying Party are named as defendants, the Indemnified Party shall have the right to employ separate
counsel (but no more than one such separate counsel) to represent the Indemnified Party and its controlling persons who may be subject to liability arising out of any claim in respect of which indemnity may be sought by the Indemnified Party against
the Indemnifying Party, with the fees and expenses of such counsel to be paid by such Indemnifying Party if, based upon the written advice of counsel of such Indemnified Party, representation of both parties by the same counsel would be
inappropriate due to actual or potential differing interests between them. No Indemnifying Party shall, without the prior written consent of the Indemnified Party, consent to entry of judgment or effect any settlement of any claim or pending or
threatened proceeding in respect of which the Indemnified Party is or could have been a party and indemnity could have been sought hereunder by such Indemnified Party, unless such judgment or settlement includes an unconditional release of such
Indemnified Party from all liability arising out of such claim or proceeding. 
 4.4 Contribution. 

4.4.1 If the indemnification provided for in the foregoing Sections 4.1, 4.2 and 4.3 is unavailable to any Indemnified Party in respect of any
loss, claim, damage, liability or action referred to herein, then each such Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute to the amount paid or payable by such Indemnified Party as a result of such loss, claim,
damage, liability or action in such proportion as is appropriate to reflect the relative fault of the Indemnified Parties and the Indemnifying Parties in connection with the actions or omissions which resulted in such loss, claim, damage, liability
or action, as well as any other relevant equitable considerations. The relative fault of any Indemnified Party and any Indemnifying Party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a
material fact or the omission or alleged omission to state a material fact relates to information supplied by such Indemnified Party or such Indemnifying Party and the parties’ relative intent, knowledge, access to information and opportunity
to correct or prevent such statement or omission. 
 4.4.2 The parties hereto agree that it would not be just and equitable if contribution
pursuant to this Section 4.4 were determined by pro rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to in the immediately preceding Section 4.4.1. 

4.4.3 The amount paid or payable by an Indemnified Party as a result of any loss, claim, damage, liability or action referred to in the
immediately preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Party in connection with investigating or defending any such action or claim.
Notwithstanding the provisions of this Section 4.4, no holder of Registrable Securities shall be required to contribute any amount in excess of the dollar amount of the net proceeds (after payment of any underwriting fees, discounts,
commissions or taxes) actually received by such holder from the sale of Registrable Securities which gave rise to such contribution obligation. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) with respect to any action shall be entitled to contribution in such action from any person who was not guilty of such fraudulent misrepresentation. 

4.5 Survival. The indemnification provided for under this Agreement shall remain in full force and effect regardless of any
investigation made by or on behalf of the Indemnified Party or any officer, director or controlling person of such Indemnified Party and shall survive the transfer of securities. 

 5. UNDERWRITING AND DISTRIBUTION. 

5.1 Rule 144. The Company covenants that it shall file any reports required to be filed by it under the Securities Act and the
Exchange Act and shall take such further action as the holders of Registrable Securities may reasonably request, all to the extent required from time to time to enable such holders to sell Registrable Securities without registration under the
Securities Act within the limitation of the exemptions provided by Rule 144 under the Securities Act, as such Rules may be amended from time to time, or any similar rule or regulation hereafter adopted by the Commission. 

6. MISCELLANEOUS. 

6.1 Other Registration Rights. The Company represents and warrants that no person, other than the holders of the Registrable
Securities, has any right to require the Company to register any shares of the Company’s capital stock for sale or to include shares of the Company’s capital stock in any registration filed by the Company for the sale of shares of capital
stock for its own account or for the account of any other person. Further, the Company represents and warrants that this Agreement supersedes any other registration rights agreement or agreement with similar terms and conditions and in the event of
a conflict between any such agreement or agreements and this Agreement, the terms of this Agreement shall prevail. 
 6.2 Assignment;
No Third Party Beneficiaries. This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in part. Prior to the expiration of the lockup restrictions relating to the
Founder Shares and Private Warrants, as the case may be, no Investor may assign or delegate such Investor’s rights, duties or obligations under this Agreement, in whole or in part, except in connection with transfer of Registrable Securities by
such Investor where such Permitted Transferee agrees to become bound by the transfer restrictions set forth in this Agreement. This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties, to
the permitted assigns of the Investors or holder of Registrable Securities or of any assignee of the Investors or holder of Registrable Securities. This Agreement is not intended to confer any rights or benefits on any persons that are not party
hereto other than as expressly set forth in Article 4 and this Section 6.2. 
 6.3 Notices. All notices, demands, requests,
consents, approvals or other communications (collectively, “Notices”) required or permitted to be given hereunder or which are given with respect to this Agreement shall be in writing and shall be personally served, delivered
by reputable air courier service with charges prepaid, or transmitted by hand delivery, telegram, telex or facsimile, addressed as set forth below, or to such other address as such party shall have specified most recently by written notice. Notice
shall be deemed given on the date of service or transmission if personally served or transmitted by telegram, telex or facsimile; provided, that if such service or transmission is not on a business day or is after normal business hours, then such
notice shall be deemed given on the next business day. Notice otherwise sent as provided herein shall be deemed given on the next business day following timely delivery of such notice to a reputable air courier service with an order for next-day delivery. 
 To the Company: 

Northern Star Investment Corp. II 

c/o Graubard Miller 
 405
Lexington Avenue 
 New York, New York 10174 

Attn: Chief Executive Officer 

with a copy to: 
 Graubard Miller

 The Chrysler Building 
 405
Lexington Avenue 
 New York NY 10174 

Attn: David Alan Miller, Esq. 
 To
an Investor, to the address set forth below such Investor’s name on Exhibit A hereto. 

 6.4 Severability. This Agreement shall be deemed severable, and the invalidity
or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties
hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible that is valid and enforceable. 

6.5 Counterparts. This Agreement may be executed in multiple counterparts, each of which shall be deemed an original, and all of which
taken together shall constitute one and the same instrument. Delivery of a signed counterpart of this Agreement by facsimile or email/pdf transmission shall constitute valid and sufficient delivery thereof. 

6.6 Entire Agreement. This Agreement (including all agreements entered into pursuant hereto and all certificates and instruments
delivered pursuant hereto and thereto) constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior and contemporaneous agreements, representations, understandings, negotiations and discussions
between the parties, whether oral or written. 
 6.7 Modifications and Amendments. No amendment, modification or termination of
this Agreement shall be binding upon any party unless executed in writing by such party. 
 6.8 Titles and Headings. Titles and
headings of sections of this Agreement are for convenience only and shall not affect the construction of any provision of this Agreement. 

6.9 Waivers and Extensions. Any party to this Agreement may waive any right, breach or default which such party has the right to
waive, provided that such waiver will not be effective against the waiving party unless it is in writing, is signed by such party, and specifically refers to this Agreement. Waivers may be made in advance or after the right waived has arisen or the
breach or default waived has occurred. Any waiver may be conditional. No waiver of any breach of any agreement or provision herein contained shall be deemed a waiver of any preceding or succeeding breach thereof nor of any other agreement or
provision herein contained. No waiver or extension of time for performance of any obligations or acts shall be deemed a waiver or extension of the time for performance of any other obligations or acts. 

6.10 Remedies Cumulative. In the event that the Company fails to observe or perform any covenant or agreement to be observed or
performed under this Agreement, the Investor or any other holder of Registrable Securities may proceed to protect and enforce its rights by suit in equity or action at law, whether for specific performance of any term contained in this Agreement or
for an injunction against the breach of any such term or in aid of the exercise of any power granted in this Agreement or to enforce any other legal or equitable right, or to take any one or more of such actions, without being required to post a
bond. None of the rights, powers or remedies conferred under this Agreement shall be mutually exclusive, and each such right, power or remedy shall be cumulative and in addition to any other right, power or remedy, whether conferred by this
Agreement or now or hereafter available at law, in equity, by statute or otherwise. 
 6.11 Governing Law. This Agreement shall
be governed by, interpreted under, and construed in accordance with the internal laws of the State of New York applicable to agreements made and to be performed within the State of New York, without giving effect to any choice-of-law provisions thereof that would compel the application of the substantive laws of any other jurisdiction. The Company irrevocably submits to the nonexclusive jurisdiction of any New
York State or United States Federal court sitting in The City of New York, Borough of Manhattan, over any suit, action or proceeding arising out of or relating to this Agreement. The Company irrevocably waives, to the fullest extent permitted by
law, any objection that they may now or hereafter have to the laying of venue of any such suit, action or proceeding brought in such a court and any claim that any such suit, action or proceeding brought in such a court has been brought in an
inconvenient forum. 
 6.12 Waiver of Trial by Jury. EACH PARTY HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVES THE RIGHT TO A
TRIAL BY JURY IN ANY ACTION, SUIT, COUNTERCLAIM OR OTHER PROCEEDING (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF, CONNECTED WITH OR RELATING TO THIS AGREEMENT, THE TRANSACTIONS CONTEMPLATED HEREBY, OR THE ACTIONS OF THE INVESTOR IN
THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR ENFORCEMENT HEREOF. 
 [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

 IN WITNESS WHEREOF, the parties have caused this Registration Rights Agreement to be
executed and delivered by their duly authorized representatives as of the date first written above. 
  

			
	COMPANY:
	
	NORTHERN STAR INVESTMENT CORP. II
		
	By:	 	  

		 	Name: Joanna Coles
		 	Title: Chief Executive Officer
	
	INVESTORS:
	
	NORTHERN STAR II SPONSOR LLC
		
	By:	 	  

		 	Name: Jonathan J. Ledecky
		 	Title: Managing Member
	
	  

	James H. R. Brady
	
	  

	Kirsten Green
	
	  

	David Shapiro
	
	  

	Maryann Turcke

 [Signature Page to Registration Rights Agreement]EX-10.5

 Exhibit 10.5

________, 2021 
 Ladies and Gentlemen:

Northern Star Investment Corp. II (“Corporation”), a blank check company formed for the purpose of acquiring one or more businesses
or entities (a “Business Combination”), intends to register its securities under the Securities Act of 1933, as amended (“Securities Act”), in connection with its initial public offering (“IPO”). The Corporation
currently anticipates selling units in the IPO, each comprised of one share of Class A common stock, par value $0.0001 per share, of the Corporation (“Common Stock”) and one-fifth of
one warrant (“Warrant”), each whole Warrant to purchase one share of Common Stock.
 The undersigned hereby commits to purchase
an aggregate of 7,750,000 warrants of the Corporation (“Private Warrants”) at $1.00 per Private Warrant for an aggregate purchase price of $7,750,000 (the “Initial Purchase Price”). Additionally, if the underwriters’
over-allotment option is exercised in full or part, the undersigned will purchase up to an additional 450,000 Private Warrants at $1.50 per Private Warrant for an additional purchase price of up to $900,000 (the “Additional Purchase Price”
and together with the Initial Purchase Price, the “Purchase Price”). The Private Warrants will be identical to the warrants to be sold in the IPO except as described in the Corporation’s Registration Statement on Form S-1 (File No. 333-______) filed in connection with the IPO (“Registration Statement”). At least 24 hours prior to the effective date
(“Effective Date”) of the Registration Statement, the undersigned will cause the Purchase Price to be delivered to Graubard Miller, counsel for the Corporation (“Counsel”), by wire transfer as set forth in the instructions
attached as Exhibit A hereto to hold in a non-interest bearing account until the Corporation consummates the IPO. The undersigned agrees that if the size of the IPO is increased or decreased for any
reason, the amount of the undersigned’s investment will be either increased or decreased, as applicable, so that the undersigned’s percentage of the aggregate investment in Private Warrants made by the undersigned and other investors of
the Corporation remains the same. If the size of the offering is increased, the undersigned agrees that it will deliver the purchase price for such additional Private Warrants to Counsel as set forth above or as promptly as is reasonably practicable
following the increase if it is on the Effective Date. If the size of the offering is decreased, the unused portion of the Purchase Price shall be returned to the undersigned.

The consummation of the purchase and issuance of the Private Warrants shall occur simultaneously with the consummation of the IPO.
Simultaneously with the consummation of the IPO, Counsel shall deposit the Purchase Price, without interest or deduction, into the trust fund (“Trust Fund”) established by the Corporation for the benefit of the Corporation’s public
stockholders as described in the Registration Statement. If the Corporation does not complete the IPO within thirty (30) days from the Effective Date, the Purchase Price (without interest or deduction) will be returned to the undersigned.

Each of the Corporation and the undersigned acknowledges and agrees that Counsel is serving hereunder solely as a convenience to the parties
to facilitate the purchase of the Private Warrants and Counsel’s sole obligation under this letter agreement is to act with respect to holding and disbursing the Purchase Price for the Private Warrants as described above. Counsel shall not be
liable to the Corporation or the undersigned or any other person or entity in respect of any act or failure to act hereunder or otherwise in connection with performing its services hereunder unless Counsel has acted in a manner constituting gross
negligence or willful misconduct. The Corporation shall indemnify Counsel against any claim made against it (including reasonable attorney’s fees) by reason of it acting or failing to act in connection with this letter agreement except as a
result of its gross negligence or willful misconduct. Counsel may rely and shall be protected in acting or refraining from acting upon any written notice, instruction or request furnished to it hereunder and believed by it to be genuine and to have
been signed or presented by the proper party or parties.
 The Private Warrants will be identical to the warrants to be sold by the
Corporation in the IPO, except that:
  

	 	•	 	 the Private Warrants (i) will not be redeemable by the Corporation except as described in the
Corporation’s Registration Statement, and (ii) may be exercised for cash or on a cashless basis, as described in the Registration Statement, in each case so long as they are held by the undersigned or any of its permitted transferees;

	 	•	 	 the Private Warrants and the Common Stock issuable upon the exercise of the Private Warrants will not be
transferable by the undersigned until 30 days after the consummation of a Business Combination (subject to certain exceptions as described in the Registration Statement and set forth in the warrant agreement governing the Private Warrants);

  

	 	•	 	 the Private Warrants will be subject to customary registration rights, pursuant to a registration rights
agreement on terms agreed upon by the Corporation and the underwriters to be filed as an exhibit to the Registration Statement; and

  

	 	•	 	 the Private Warrants will include any additional terms or restrictions as is customary in other similarly
structured blank check company offerings or as may be reasonably required by the underwriters in order to consummate the IPO, which terms or restrictions will be described in the Registration Statement.

The undersigned acknowledges and agrees that it will execute agreements in form and substance typical for transactions of this nature
necessary to effectuate the foregoing agreements and obligations prior to the consummation of the IPO as are reasonably acceptable to the undersigned, including but not limited to (i) an insider letter and (ii) a registration rights
agreement.
 The undersigned hereby represents and warrants that, as applicable:

 

	 	(a)	 it has been advised that the Private Warrants have not been registered under the Securities Act;

  

	 	(b)	 it is acquiring the Private Warrants for its account for investment purposes only;

 

	 	(c)	 it has no present intention of selling or otherwise disposing of the Private Warrants in violation of the
securities laws of the United States;

  

	 	(d)	 it is an “accredited investor” as defined by Rule 501 of Regulation D promulgated under the
Securities Act of 1933, as amended;

  

	 	(e)	 it has had both the opportunity to ask questions and receive answers from the officers and directors of the
Corporation and all persons acting on its behalf concerning the terms and conditions of the offer made hereunder;

  

	 	(f)	 it is familiar with the proposed business, management, financial condition and affairs of the Corporation;

  

	 	(g)	 it has full power, authority and legal capacity to execute and deliver this letter and any documents
contemplated herein or needed to consummate the transactions contemplated in this letter; and

  

	 	(h)	 this letter constitutes a legal, valid and binding obligation, and is enforceable against it.

 [Signature Page Follows]

 
			
	Very truly yours,
	
	NORTHERN STAR II SPONSOR LLC
		
	By:	 	  

		 	Name:
		 	Title:

  

			
	Accepted and Agreed:
	
	NORTHERN STAR INVESTMENT CORP. II
		
	By:	 	  

		 	Name:
		 	Title:
	
	GRAUBARD MILLER
	(solely with respect to its obligations to hold and disburse monies for the Private Warrants)
		
	By:	 	  

		 	Name: Jeffrey Gallant
		 	Title: Partner

 [Signature Page to Subscription Agreement]

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