Document:

Form of Registration Rights Agreement

 Exhibit 10.3 
 REGISTRATION RIGHTS AGREEMENT 
 This Registration
Rights Agreement (this “Agreement”) is made and entered into as of February 16, 2010, between NMT Medical, Inc., a Delaware corporation (the “Company”), and each of the several purchasers signatory hereto (each
such purchaser, a “Purchaser” and, collectively, the “Purchasers”). 
 This Agreement is made
pursuant to the Securities Purchase Agreement, dated as of the date hereof, between the Company and each Purchaser (the “Purchase Agreement”). 
 The Company and each Purchaser hereby agrees as follows: 
 1. Definitions.

 Capitalized terms used and not otherwise defined herein that are defined in the Purchase Agreement shall have the meanings
given such terms in the Purchase Agreement. As used in this Agreement, the following terms shall have the following meanings: 
 “Advice” shall have the meaning set forth in Section 6(d). 
 “Effectiveness Date” means, with respect to the Initial Registration Statement required to be filed hereunder, the date hereof and with respect to any additional Registration Statements
which may be required pursuant to Section 3(c), the 30th calendar day following the date on which an additional Registration Statement is required to be filed hereunder; provided, however, that in the event the Company is notified by the Commission that one or more of the above
Registration Statements will not be reviewed or is no longer subject to further review and comments, the Effectiveness Date as to such Registration Statement shall be the fifth Trading Day following the date on which the Company is so notified if
such date precedes the dates otherwise required above. 
 “Effectiveness Period” shall have the
meaning set forth in Section 2(a). 
 “Event” shall have the meaning set forth in
Section 2(b). 
 “Event Date” shall have the meaning set forth in Section 2(b).

 “Filing Date” means, with respect to the Initial Registration Statement required hereunder,
the date hereof and, with respect to any additional Registration Statements which may be required pursuant to Section 3(c), the earliest practical date on which the Company is permitted by SEC Guidance to file such additional Registration
Statement related to the Registrable Securities. 

 “Holder” or “Holders” means the holder or
holders, as the case may be, from time to time of Registrable Securities. 
 “Indemnified Party”
shall have the meaning set forth in Section 5(c). 
 “Indemnifying Party” shall have the
meaning set forth in Section 5(c). 
 “Initial Registration Statement” means the February
Registration Statement. 
 “Initial Shares” means a number of Registrable Securities equal to
the lesser of (a) the total number of Registrable Securities and (b) one-third of the number of issued and outstanding shares of Common Stock that are held by non-Affiliates of the Company on the day immediately prior to the filing date of
the Initial Registration Statement. 
 “Losses” shall have the meaning set forth in
Section 5(a). 
 “Plan of Distribution” shall have the meaning set forth in
Section 2(a). 
 “Prospectus” means the prospectus included in a Registration Statement
(including, without limitation, a prospectus that includes any information previously omitted from a prospectus filed as part of an effective registration statement in reliance upon Rule 430A promulgated by the Commission pursuant to the Securities
Act), as amended or supplemented by any prospectus supplement, with respect to the terms of the offering of any portion of the Registrable Securities covered by a Registration Statement, and all other amendments and supplements to the Prospectus,
including post-effective amendments, and all material incorporated by reference or deemed to be incorporated by reference in such Prospectus. 
 “Registrable Securities” means, as of any date of determination, (a) all Shares, (b) all Warrant Shares then issuable upon exercise of the Warrants (assuming on such date the
Warrants are exercised in full without regard to any exercise limitations therein), (c) any additional shares of Common Stock issuable in connection with any anti-dilution provisions in the Warrants (without giving effect to any limitations on
exercise set forth in the Warrants) and (d) any securities issued or then issuable upon any stock split, dividend or other distribution, recapitalization or similar event with respect to the foregoing; provided, however, that any
such Registrable Securities shall cease to be Registrable Securities (and the Company shall not be required to maintain the effectiveness of any, or file another, Registration Statement hereunder with respect thereto) for so long as (a) a
Registration Statement with respect to the Registrable Securities is declared effective on the date hereof and such Registrable Securities have been disposed of by the Holder in accordance with 

 
such effective Registration Statement, (b) such Registrable Securities have been previously sold in accordance with Rule 144, or (c) at such time as they become eligible for resale
pursuant to Rule 144 (b)(1)(i) under the Securities Act provided that a period of at least one year, as determined in accordance with paragraph (d) of Rule 144, has elapsed since the later of the date such shares were acquired from the Company
or an affiliate of the Company. 
 “Registration Statement” means the February Registration
Statement and any additional registration statements contemplated by Section 3(c), including (in each case) the Prospectus, amendments and supplements to any such registration statement or Prospectus, including pre- and post-effective
amendments, all exhibits thereto, and all material incorporated by reference or deemed to be incorporated by reference in any such registration statement. 
 “Rule 415” means Rule 415 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time, or any similar rule or regulation
hereafter adopted by the Commission having substantially the same purpose and effect as such Rule. 
 “Rule 424” means Rule 424 promulgated by the Commission pursuant to the Securities Act, as such Rule may be amended or interpreted from time to time, or any similar rule or regulation hereafter adopted by the Commission
having substantially the same purpose and effect as such Rule. 
 “Selling Stockholder
Questionnaire” shall have the meaning set forth in Section 3(a). 
 “SEC Guidance”
means (i) any publicly-available written or oral guidance of the Commission staff, or any comments, requirements or requests of the Commission staff and (ii) the Securities Act. 
 2. Shelf Registration. 
 (a) On or prior to each Filing Date, the Company shall prepare and file with the Commission a Registration Statement covering the resale of all or such maximum portion of the Registrable Securities as
permitted by SEC Guidance (provided that, the Company shall use diligent efforts to advocate with the Commission for the registration of all of the Registrable Securities in accordance with the SEC Guidance, including without limitation, the Manual
of Publicly Available Telephone Interpretations D.29) that are not then registered on an effective Registration Statement for an offering to be made on a continuous basis pursuant to Rule 415. Each Registration Statement filed hereunder shall be on
Form S-3 (except if the Company is not then eligible to register for resale the Registrable Securities on Form S-3, in which case such registration shall be on another appropriate form in accordance herewith) and shall contain (unless otherwise
directed by at least an 85% majority in interest of the Holders)

 
substantially the “Plan of Distribution” attached hereto as Annex A. Subject to the terms of this Agreement, the Company shall use its best efforts to cause a Registration
Statement filed hereunder to be declared effective under the Securities Act as promptly as possible after the filing thereof, but in any event prior to the applicable Effectiveness Date, and shall use its best efforts to keep such Registration
Statement continuously effective under the Securities Act until the earlier of (i) eighteen (18) months from the date hereof or (2) the date all Registrable Securities covered by such Registration Statement (i) have been sold,
thereunder or pursuant to Rule 144, or (ii) (A) may be sold without volume or manner-of-sale restrictions pursuant to Rule 144 and (B) (I) may be sold without the requirement for the Company to be in compliance with the current
public information requirement under Rule 144 or (II) the Company is in compliance with the current public information requirement under Rule 144, as determined by the counsel to the Company pursuant to a written opinion letter to such effect,
addressed and acceptable to the Transfer Agent and the affected Holders (the “Effectiveness Period”). The Company shall telephonically request effectiveness of a Registration Statement as of 5:00 p.m. New York City time on a Trading
Day. The Company shall promptly notify the Holders via facsimile or by e-mail of the effectiveness of a Registration Statement on the same Trading Day that the Company confirms effectiveness with the Commission, which shall be the date requested for
effectiveness of such Registration Statement. The Company shall, by 9:30 a.m. New York City time on the Trading Day after the effective date of such Registration Statement, file a final Prospectus with the Commission as required by Rule 424. Failure
to so notify the Holder within one (1) Trading Day of such notification of effectiveness or failure to file a final Prospectus as foresaid shall be deemed an Event under Section 2(b). Notwithstanding any other provision of this Agreement
and subject to the payment of liquidated damages pursuant to Section 2(b), if any SEC Guidance sets forth a limitation on the number of Registrable Securities permitted to be registered on a particular Registration Statement (and
notwithstanding that the Company used diligent efforts to advocate with the Commission for the registration of all or a greater portion of Registrable Securities), unless otherwise directed in writing by a Holder as to its Registrable Securities,
the number of Registrable Securities to be registered on such Registration Statement will first be reduced by Registrable Securities represented by Warrant Shares (applied, in the case that some Warrant Shares may be registered, to the Holders on a
pro rata basis based on the total number of unregistered Warrant Shares held by such Holders); provided, however, that, prior to any reduction in the number of Registrable Securities included in a Registration Statement as set forth in
this sentence, all shares of Common Stock set forth on Schedule 6(b) hereto shall be reduced first. In the event of a cutback hereunder, the Company shall give the Holder at least five (5) Trading Days prior written notice along with the
calculations as to such Holder’s allotment. 
 (b) If: (i) the Initial Registration Statement is not
filed on or prior to its Filing Date (if the Company files the Initial Registration Statement without

 
affording the Holders the opportunity to review and comment on the same as required by Section 3(a) herein, the Company shall be deemed to have not satisfied this clause (i)), or
(ii) the Company fails to file with the Commission a request for acceleration of a Registration Statement in accordance with Rule 461 promulgated by the Commission pursuant to the Securities Act, within five Trading Days of the date that the
Company is notified (orally or in writing, whichever is earlier) by the Commission that such Registration Statement will not be “reviewed” or will not be subject to further review, or (iii) prior to the effective date of a
Registration Statement, the Company fails to file a pre-effective amendment and otherwise respond in writing to comments made by the Commission in respect of such Registration Statement within ten (10) calendar days after the receipt of
comments by or notice from the Commission that such amendment is required in order for such Registration Statement to be declared effective, or (iv) as to, in the aggregate among all Holders on a pro-rata basis based on their purchase of the
Securities pursuant to the Purchase Agreement, a Registration Statement registering for resale all of the Initial Shares is not declared effective by the Commission by the Effectiveness Date of the Initial Registration Statement, or (v) after
the effective date of a Registration Statement, such Registration Statement ceases for any reason to remain continuously effective as to all Registrable Securities included in such Registration Statement, or the Holders are otherwise not permitted
to utilize the Prospectus therein to resell such Registrable Securities, for more than ten (10) consecutive calendar days or more than an aggregate of fifteen (15) calendar days (which need not be consecutive calendar days) during any
12-month period, or (vi) the Company shall fail for any reason to satisfy the current public information requirement under Rule 144 as to the applicable Registrable Securities (any such failure or breach being referred to as an
“Event”, and for purposes of clauses (i), (iv), and (vi), the date on which such Event occurs, and for purpose of clause (ii) the date on which such five (5) Trading Day period is exceeded, and for purpose of clause
(iii) the date which such ten (10) calendar day period is exceeded, and for purpose of clause (v) the date on which such ten (10) or fifteen (15) calendar day period, as applicable, is exceeded being referred to as
“Event Date”), then, in addition to any other rights the Holders may have hereunder or under applicable law, on each such Event Date and on each monthly anniversary of each such Event Date (if the applicable Event shall not have
been cured by such date) until the applicable Event is cured, the Company shall pay to each Holder an amount in cash, as partial liquidated damages and not as a penalty, equal to 1% of the aggregate purchase price paid by such Holder pursuant to the
Purchase Agreement for any unregistered Registrable Securities then held by such Holder. The parties agree that the Company shall not be liable for liquidated damages under this Agreement with respect to any unexercised Warrants or Warrant Shares.
If the Company fails to pay any partial liquidated damages pursuant to this Section in full within seven days after the date payable, the Company will pay interest thereon at a rate of 18% per annum (or such lesser maximum amount that is
permitted to be paid by applicable law) to the Holder, accruing daily from the date such partial liquidated damages are due until such amounts, plus all such interest thereon, are 

 
paid in full. The partial liquidated damages pursuant to the terms hereof shall apply on a daily pro rata basis for any portion of a month prior to the cure of an Event. 
 3. Registration Procedures. 
 In connection with the Company’s registration obligations hereunder, the Company shall: 
 (a) Prior to the filing of each Registration Statement and any related Prospectus or any amendment or supplement thereto (including any document that would be incorporated or deemed to be incorporated
therein by reference), the Company shall (i) furnish to each Holder copies of all such documents proposed to be filed, which documents (other than those incorporated or deemed to be incorporated by reference) will be subject to the review of
such Holders, and (ii) cause its officers and directors, counsel and independent registered public accountants to respond to such inquiries as shall be necessary, in the reasonable opinion of respective counsel to each Holder, to conduct a
reasonable investigation within the meaning of the Securities Act. Each Holder agrees to furnish to the Company a completed questionnaire in the form attached to this Agreement as Annex B (a “Selling Stockholder
Questionnaire”) on a date that is not less than one day prior to the Filing Date. 
 (b) (i) Prepare and
file with the Commission such amendments, including post-effective amendments, to a Registration Statement and the Prospectus used in connection therewith as may be necessary to keep a Registration Statement continuously effective as to the
applicable Registrable Securities for the Effectiveness Period and prepare and file with the Commission such additional Registration Statements in order to register for resale under the Securities Act all of the Registrable Securities,
(ii) cause the related Prospectus to be amended or supplemented by any required Prospectus supplement (subject to the terms of this Agreement), and, as so supplemented or amended, to be filed pursuant to Rule 424, (iii) respond as promptly
as reasonably possible to any comments received from the Commission with respect to a Registration Statement or any amendment thereto and provide as promptly as reasonably possible to the Holders true and complete copies of all correspondence from
and to the Commission relating to a Registration Statement (provided that, the Company may excise any information contained therein which would constitute material non-public information as to any Holder which has not executed a confidentiality
agreement with respect thereto with the Company), and (iv) comply in all material respects with the applicable provisions of the Securities Act and the Exchange Act with respect to the disposition of all Registrable Securities covered by a
Registration Statement during the applicable period in accordance (subject to the terms of this Agreement) with the intended methods of disposition by the Holders thereof set forth in such Registration Statement as so amended or in such Prospectus
as so supplemented. The obligations of this Section 3(b) shall also

 
apply with respect to the registration statement regarding the Registrable Securities which was declared effective by the Commission as of the date hereof (the “February Registration
Statement”). 
 (c) If during the Effectiveness Period, the number of Registrable Securities at any time
exceeds 100% of the number of shares of Common Stock then registered in the February Registration Statement, then the Company shall file as soon as reasonably practicable, but in any case prior to the applicable Filing Date, an additional
Registration Statement covering the resale by the Holders of not less than the number of such Registrable Securities. 
 (d) Notify the Holders of Registrable Securities to be sold (which notice shall, pursuant to clauses (iii) through (vi) hereof, be accompanied by an instruction to suspend the use of the Prospectus until the requisite changes have
been made) as promptly as reasonably possible (and, in the case of (i)(A) below, not less than one (1) Trading Day prior to such filing) and (if requested by any such Person) confirm such notice in writing no later than one (1) Trading Day
following the day (i)(A) when a Prospectus or any Prospectus supplement or post-effective amendment to a Registration Statement is proposed to be filed, (B) when the Commission notifies the Company whether there will be a “review” of
such Registration Statement and whenever the Commission comments in writing on such Registration Statement, and (C) with respect to a Registration Statement or any post-effective amendment, when the same has become effective, (ii) of any
request by the Commission or any other federal or state governmental authority for amendments or supplements to a Registration Statement or Prospectus or for additional information, (iii) of the issuance by the Commission or any other federal
or state governmental authority of any stop order suspending the effectiveness of a Registration Statement covering any or all of the Registrable Securities or the initiation of any Proceedings for that purpose; (iv) of the receipt by the
Company of any notification with respect to the suspension of the qualification or exemption from qualification of any of the Registrable Securities for sale in any jurisdiction, or the initiation or threatening of any Proceeding for such purpose,
(v) of the occurrence of any event or passage of time that makes the financial statements included in a Registration Statement ineligible for inclusion therein or any statement made in a Registration Statement or Prospectus or any document
incorporated or deemed to be incorporated therein by reference untrue in any material respect or that requires any revisions to a Registration Statement, Prospectus or other documents so that, in the case of a Registration Statement or the
Prospectus, as the case may be, it will not contain any 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, in light of the circumstances under which they
were made, not misleading and (vi) of the occurrence or existence of any pending corporate development with respect to the Company that the Company believes may be material and that, in the determination of the Company, makes it not in the best
interests of the Company to allow continued availability of a Registration Statement or Prospectus, provided that any and all of

 
such information shall remain confidential to each Holder until such information otherwise becomes public, unless disclosure by a Holder is required by law; provided, further, that
notwithstanding each Holder’s agreement to keep such information confidential, each such Holder makes no acknowledgement that any such information is material, non-public information. The obligations of this Section 3(d) shall also apply
with respect to the February Registration Statement. 
 (e) Use its best efforts to avoid the issuance of, or, if
issued, obtain the withdrawal of (i) any order stopping or suspending the effectiveness of a Registration Statement (including, without limitation, the February Registration Statement), or (ii) any suspension of the qualification (or
exemption from qualification) of any of the Registrable Securities for sale in any jurisdiction, at the earliest practicable moment. 
 (f) Furnish to each Holder, without charge, at least one conformed copy of each such Registration Statement (including, without limitation, the February Registration Statement) and each amendment thereto,
including financial statements and schedules, all documents incorporated or deemed to be incorporated therein by reference to the extent requested by such Person, and all exhibits to the extent requested by such Person (including those previously
furnished or incorporated by reference) promptly after the filing of such documents with the Commission; provided, that any such item which is available on the EDGAR system (or successor thereto) need not be furnished in physical form. The
obligations of this Section 3(f) shall also apply with respect to the February Registration Statement. 
 (g) Subject to the terms of this Agreement, the Company hereby consents to the use of such Prospectus and each amendment or supplement thereto by each of the selling Holders in connection with the offering and sale of the Registrable
Securities covered by such Prospectus and any amendment or supplement thereto, except after the giving of any notice pursuant to Section 3(d). This Section 3(g) shall also apply with respect to the February Registration Statement.

 (h) The Company shall cooperate with any broker-dealer through which a Holder proposes to resell its
Registrable Securities in effecting a filing with the FINRA Corporate Financing Department pursuant to FINRA Rule 5110, as requested by any such Holder, and the Company shall pay the filing fee required by such filing within two (2) Business
Days of request therefor. 
 (i) Prior to any resale of Registrable Securities by a Holder, use its commercially
reasonable efforts to register or qualify or cooperate with the selling Holders in connection with the registration or qualification (or exemption from the Registration or qualification) of such Registrable Securities for the resale by the Holder
under the securities or Blue Sky laws of such jurisdictions within the United States as any Holder reasonably requests in writing, to keep each

 
registration or qualification (or exemption therefrom) effective during the Effectiveness Period and to do any and all other acts or things reasonably necessary to enable the disposition in such
jurisdictions of the Registrable Securities covered by each Registration Statement; provided, that, the Company shall not be required to qualify generally to do business in any jurisdiction where it is not then so qualified, subject the Company to
any material tax in any such jurisdiction where it is not then so subject or file a general consent to service of process in any such jurisdiction. The obligations of this Section 3(i) shall also apply with respect to the February Registration
Statement. 
 (j) If requested by a Holder, cooperate with such Holder to facilitate the timely preparation and
delivery of certificates representing Registrable Securities to be delivered to a transferee, which certificates shall be free, to the extent permitted by the Purchase Agreement, of all restrictive legends, and to enable such Registrable Securities
to be in such denominations and registered in such names as any such Holder may request. 
 (k) Upon the
occurrence of any event contemplated by Section 3(d), as promptly as reasonably possible under the circumstances taking into account the Company’s good faith assessment of any adverse consequences to the Company and its stockholders of the
premature disclosure of such event, prepare a supplement or amendment, including a post-effective amendment, to a Registration Statement or a supplement to the related Prospectus or any document incorporated or deemed to be incorporated therein by
reference, and file any other required document so that, as thereafter delivered, neither a Registration Statement nor such Prospectus will contain an untrue statement of a material fact or omit to state a material fact required to be stated therein
or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. If the Company notifies the Holders in accordance with clauses (iii) through (vi) of Section 3(d) above to suspend
the use of any Prospectus until the requisite changes to such Prospectus have been made, then the Holders shall suspend use of such Prospectus. The Company will use its best efforts to ensure that the use of the Prospectus may be resumed as promptly
as is practicable. The Company shall be entitled to exercise its right under this Section 3(k) to suspend the availability of a Registration Statement and Prospectus, subject to the payment of partial liquidated damages otherwise required
pursuant to Section 2(b), for a period not to exceed 60 calendar days (which need not be consecutive days) in any 12-month period. The rights and obligations of this Section 3(k) shall also apply with respect to the February Registration
Statement. 
 (l) Comply with all applicable rules and regulations of the Commission, including with respect to
the February Registration Statement. 
 (m) The Company may require each selling Holder to furnish to the Company
a certified statement as to the number of shares of Common Stock beneficially owned by such Holder and, if required by the Commission, the

 
natural persons thereof that have voting and dispositive control over the shares. During any periods that the Company is unable to meet its obligations hereunder with respect to the registration
of the Registrable Securities solely because any Holder fails to furnish such information within three Trading Days of the Company’s request, any liquidated damages that are accruing at such time as to such Holder only shall be tolled and any
Event that may otherwise occur solely because of such delay shall be suspended as to such Holder only, until such information is delivered to the Company. 
 4. Registration Expenses. All fees and expenses incident to the performance of or compliance with, this Agreement by the Company shall be borne by the Company whether or not any Registrable
Securities are sold pursuant to a Registration Statement. The fees and expenses referred to in the foregoing sentence shall include, without limitation, (i) all registration and filing fees (including, without limitation, fees and expenses of
the Company’s counsel and independent registered public accountants) (A) with respect to filings made with the Commission, (B) with respect to filings required to be made with any Trading Market on which the Common Stock is then
listed for trading, (C) in compliance with applicable state securities or Blue Sky laws reasonably agreed to by the Company in writing (including, without limitation, fees and disbursements of counsel for the Company in connection with Blue Sky
qualifications or exemptions of the Registrable Securities) and (D) if not previously paid by the Company with respect to any filing that may be required to be made by any broker through which a Holder intends to make sales of Registrable
Securities with FINRA pursuant to FINRA Rule 5110, so long as the broker is receiving no more than a customary brokerage commission in connection with such sale, (ii) printing expenses (including, without limitation, expenses of printing
certificates for Registrable Securities), (iii) messenger, telephone and delivery expenses incurred by the Company, (iv) fees and disbursements of counsel for the Company, (v) Securities Act liability insurance, if the Company so
desires such insurance, and (vi) fees and expenses of all other Persons retained by the Company in connection with the consummation of the transactions contemplated by this Agreement. In addition, the Company shall be responsible for all of its
internal expenses incurred in connection with the consummation of the transactions contemplated by this Agreement (including, without limitation, all salaries and expenses of its officers and employees performing legal or accounting duties), the
expense of any annual audit and the fees and expenses incurred in connection with the listing of the Registrable Securities on any securities exchange as required hereunder. In no event shall the Company be responsible for any broker or similar
commissions of any Holder or, except to the extent provided for in the Transaction Documents, any legal fees or other costs of the Holders. The provisions of this Section 4 shall also apply with respect to the February Registration Statement.

 5. Indemnification. 
 (a) Indemnification by the Company. The Company shall, notwithstanding any termination of this Agreement, indemnify and hold harmless each Holder, the officers, directors, members, partners,
agents, brokers (including brokers who offer and sell Registrable Securities as principal as a result of a

 
pledge or any failure to perform under a margin call of Common Stock), investment advisors and employees (and any other Persons with a functionally equivalent role of a Person holding such
titles, notwithstanding a lack of such title or any other title) of each of them, each Person who controls any such Holder (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) and the officers,
directors, members, stockholders, partners, agents and employees (and any other Persons with a functionally equivalent role of a Person holding such titles, notwithstanding a lack of such title or any other title) of each such controlling Person, to
the fullest extent permitted by applicable law, from and against any and all losses, claims, damages, liabilities, costs (including, without limitation, reasonable attorneys’ fees) and expenses reasonably incurred by them in investigating or
defending any claim or proceeding from which losses may result (collectively, “Losses”), as incurred, arising out of or relating to (1) any untrue or alleged untrue statement of a material fact contained in a Registration
Statement, any Prospectus or any form of prospectus or in any amendment or supplement thereto or in any preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or
necessary to make the statements therein (in the case of any Prospectus or supplement thereto, in light of the circumstances under which they were made) not misleading or (2) any violation or alleged violation by the Company of the Securities
Act, the Exchange Act or any state securities law, or any rule or regulation thereunder, in connection with the Registration Statement or the offering contemplated thereby, except to the extent, but only to the extent, that such untrue statements or
omissions are based upon information regarding such Holder furnished in writing to the Company by such Holder expressly for use therein, or to the extent that such information relates to such Holder or such Holder’s proposed method of
distribution of Registrable Securities and was reviewed and expressly approved in writing by such Holder expressly for use in a Registration Statement, such Prospectus or in any amendment or supplement thereto (it being understood that the Holder
has approved Annex A hereto for this purpose). The Company shall notify the Holders promptly of the institution, threat or assertion of any Proceeding arising from or in connection with the transactions contemplated by this Agreement of which the
Company is aware. 
 (b) Indemnification by Holders. Each Holder shall, severally and not jointly,
indemnify and hold harmless the Company, its directors, officers, agents and employees, each Person who controls the Company (within the meaning of Section 15 of the Securities Act and Section 20 of the Exchange Act), and the directors,
officers, agents or employees of such controlling Persons, to the fullest extent permitted by applicable law, from and against all Losses, as incurred, to the extent arising out of or based solely upon: (x) such Holder’s failure to comply
with the prospectus delivery requirements of the Securities Act or (y) any untrue or alleged untrue statement of a material fact contained in any Registration Statement, any Prospectus, or in any amendment or supplement thereto or in any
preliminary prospectus, or arising out of or relating to any omission or alleged omission of a material fact required to be stated therein or necessary to make the

 
statements therein not misleading to the extent, but only to the extent, that such untrue statement or omission is contained in any information so furnished in writing by such Holder to the
Company specifically for inclusion in such Registration Statement or such Prospectus or (ii) to the extent that such information relates to such Holder’s proposed method of distribution of Registrable Securities and was reviewed and
expressly approved in writing by such Holder expressly for use in a Registration Statement (it being understood that the Holder has approved Annex A hereto for this purpose), such Prospectus or in any amendment or supplement thereto. In no event
shall the liability of any selling Holder under this Section 5(b) be greater in amount than the dollar amount of the net proceeds received by such Holder upon the sale of the Registrable Securities giving rise to such indemnification obligation
except in the case of fraud or willful misconduct by such Holder. 
 (c) Conduct of Indemnification
Proceedings. If any Proceeding shall be brought or asserted against any Person entitled to indemnity hereunder (an “Indemnified Party”), such Indemnified Party shall promptly notify the Person from whom indemnity is sought (the
“Indemnifying Party”) in writing, and the Indemnifying Party shall have the right to assume the defense thereof, including the employment of counsel reasonably satisfactory to the Indemnified Party and the payment of all reasonable
fees and expenses incurred in connection with defense thereof; provided, that, the failure of any Indemnified Party to give such notice shall not relieve the Indemnifying Party of its obligations or liabilities pursuant to this Agreement, except
(and only) to the extent that it shall be finally determined by a court of competent jurisdiction (which determination is not subject to appeal or further review) that such failure shall have prejudiced the Indemnifying Party. 
 An Indemnified Party shall have the right to employ separate counsel and to participate in the defense thereof, but the fees
and expenses of such counsel shall be at the expense of such Indemnified Party or Parties unless: (1) the Indemnifying Party has agreed in writing to pay such fees and expenses of counsel mutually acceptable to the Indemnifying Party in any
such Proceeding, (2) the Indemnifying Party shall have failed promptly to assume the defense of such Proceeding and to employ counsel reasonably satisfactory to such Indemnified Party in any such Proceeding, or (3) the named parties to any
such Proceeding (including any impleaded parties) include both such Indemnified Party and the Indemnifying Party, and counsel to the Indemnified Party shall reasonably believe that a material conflict of interest is likely to exist if the same
counsel were to represent such Indemnified Party and the Indemnifying Party (in which case, if such Indemnified Party notifies the Indemnifying Party in writing that it elects to employ separate counsel at the expense of the Indemnifying Party, the
Indemnifying Party shall not have the right to assume the defense thereof and the reasonable fees and expenses of no more than one separate counsel shall be at the expense of the Indemnifying Party). The Indemnifying Party shall not be liable for
any settlement of any such Proceeding effected without its written

 
consent, which consent shall not be unreasonably withheld or delayed. No Indemnifying Party shall, without the prior written consent of the Indemnified Party, effect any settlement of any pending
Proceeding in respect of which any Indemnified Party is a party, unless such settlement includes an unconditional release of such Indemnified Party from all liability on claims that are the subject matter of such Proceeding. 
 Subject to the terms of this Agreement, all reasonable fees and expenses of the Indemnified Party (including reasonable fees
and expenses to the extent incurred in connection with investigating or preparing to defend such Proceeding in a manner not inconsistent with this Section) shall be paid to the Indemnified Party, as incurred, within ten Trading Days of written
notice thereof to the Indemnifying Party; provided, that, the Indemnified Party shall promptly reimburse the Indemnifying Party for that portion of such fees and expenses applicable to such actions for which such Indemnified Party is judicially
determined not to be entitled to indemnification hereunder. 
 (d) Contribution. If the indemnification
under Section 5(a) or 5(b) is unavailable to an Indemnified Party or insufficient to hold an Indemnified Party harmless for any Losses, then each Indemnifying Party shall contribute to the amount paid or payable by such Indemnified Party, in
such proportion as is appropriate to reflect the relative fault of the Indemnifying Party and Indemnified Party in connection with the actions, statements or omissions that resulted in such Losses as well as any other relevant equitable
considerations. The relative fault of such Indemnifying Party and Indemnified Party shall be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue statement of a material fact or
omission or alleged omission of a material fact, has been taken or made by, or relates to information supplied by, such Indemnifying Party or Indemnified Party, and the parties’ relative intent, knowledge, access to information and opportunity
to correct or prevent such action, statement or omission. The amount paid or payable by a party as a result of any Losses shall be deemed to include, subject to the limitations set forth in this Agreement, any reasonable attorneys’ or other
fees or expenses incurred by such party in connection with any Proceeding to the extent such party would have been indemnified for such fees or expenses if the indemnification provided for in this Section was available to such party in accordance
with its terms. 
 The parties hereto agree that it would not be just and equitable if contribution pursuant to
this Section 5(d) were determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to in the immediately preceding paragraph. Notwithstanding the provisions of
this Section 5(d), no Holder shall be required to contribute pursuant to this Section 5(d), in the aggregate, any amount in excess of the amount by which the net proceeds actually received by such Holder from the sale of the Registrable
Securities subject to the Proceeding exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of

 
such untrue or alleged untrue statement or omission or alleged omission except in the case of fraud or willful misconduct by such Holder; provided, however, that no Person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act, as amended) will be entitled to contribution from any Person who was not guilty of such fraudulent misrepresentation. 
 The indemnity and contribution agreements contained in this Section are in addition to any liability that the Indemnifying
Parties may have to the Indemnified Parties. 
 The rights, liabilities and obligations of all parties set forth
in this Section 5 shall also apply with respect to the February Registration Statement as if such registration statement were included in the definition of “Registration Statement” set forth herein. 
 6. Miscellaneous. 
 (a) Remedies. In the event of a breach by the Company or by a Holder of any of their respective obligations under this Agreement, each Holder or the Company, as the case may be, in addition to being entitled to exercise all rights
granted by law and under this Agreement, including recovery of damages, shall be entitled to specific performance of its rights under this Agreement. Each of the Company and each Holder agrees that monetary damages would not provide adequate
compensation for any losses incurred by reason of a breach by it of any of the provisions of this Agreement and hereby further agrees that, in the event of any action for specific performance in respect of such breach, it shall not assert or shall
waive the defense that a remedy at law would be adequate. 
 (b) No Piggyback on Registrations; Prohibition on Filing Other
Registration Statements. Except as set forth on Schedule 6(b) attached hereto, neither the Company nor any of its security holders (other than the Holders in such capacity pursuant hereto) may include securities of the Company in any
Registration Statements other than the Registrable Securities. The Company shall not file any other registration statements until all Registrable Securities are registered pursuant to a Registration Statement that is declared effective by the
Commission, provided that this Section 6(b) shall not prohibit the Company from filing amendments to registration statements filed prior to the date of this Agreement. 
 (c) Compliance. Each Holder covenants and agrees that it will comply with the prospectus delivery requirements of the Securities Act
as applicable to it in connection with sales of Registrable Securities pursuant to a Registration Statement, including, without limitation, the February Registration Statement. 
 (d) Discontinued Disposition. By its acquisition of Registrable Securities, each Holder agrees that, upon receipt of a notice from
the Company of the occurrence of any event of the kind described in Section 3(d)(iii) through (vi), such Holder will forthwith discontinue disposition of such Registrable Securities under a Registration

 
Statement until it is advised in writing (the “Advice”) by the Company that the use of the applicable Prospectus (as it may have been supplemented or amended) may be resumed. The
Company will use its best efforts to ensure that the use of the Prospectus may be resumed as promptly as is practicable. The Company agrees and acknowledges that any periods during which the Holder is required to discontinue the disposition of the
Registrable Securities hereunder shall be subject to the provisions of Section 2(b). 
 (e) Piggy-Back
Registrations. If, at any time during the Effectiveness Period, there is not an effective Registration Statement covering all of the Registrable Securities and the Company shall determine to prepare and file with the Commission a registration
statement relating to an offering for its own account or the account of others under the Securities Act of any of its equity securities, other than on Form S-4 or Form S-8 (each as promulgated under the Securities Act) or their then equivalents
relating to equity securities to be issued solely in connection with any acquisition of any entity or business or equity securities issuable in connection with the Company’s stock option or other employee benefit plans, then the Company shall
deliver to each Holder a written notice of such determination and, if within fifteen days after the date of the delivery of such notice, any such Holder shall so request in writing, the Company shall include in such registration statement all or any
part of such Registrable Securities such Holder requests to be registered; provided, however, that the Company shall not be required to register any Registrable Securities pursuant to this Section 6(e) that are eligible for resale
pursuant to Rule 144 promulgated by the Commission pursuant to the Securities Act or that are the subject of a then effective Registration Statement. 
 (f) Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given, unless the same shall be in writing and signed by the Company and the Holders of 67% or more of the then outstanding Registrable Securities (including, for this purpose any Registrable Securities issuable upon
exercise or conversion of any Security). If a Registration Statement does not register all of the Registrable Securities pursuant to a waiver or amendment done in compliance with the previous sentence, then the number of Registrable Securities to be
registered for each Holder shall be reduced pro rata among all Holders and each Holder shall have the right to designate which of its Registrable Securities shall be omitted from such Registration Statement. Notwithstanding the foregoing, a waiver
or consent to depart from the provisions hereof with respect to a matter that relates exclusively to the rights of a Holder or some Holders and that does not directly or indirectly affect the rights of other Holders may be given by such Holder or
Holders of all of the Registrable Securities to which such waiver or consent relates; provided, however, that the provisions of this sentence may not be amended, modified, or supplemented except in accordance with the provisions of the
first sentence of this Section 6(f). 
 (g) Notices. Any and all notices or other communications or deliveries
required or permitted to be provided hereunder shall be delivered as set forth in the Purchase Agreement. 

 (h) Successors and Assigns. This Agreement shall inure to the benefit of and be
binding upon the successors and permitted assigns of each of the parties and shall inure to the benefit of each Holder. The Company may not assign (except by merger) its rights or obligations hereunder without the prior written consent of all of the
Holders of the then outstanding Registrable Securities. Each Holder may assign their respective rights hereunder in the manner and to the Persons as permitted under Section 5.7 of the Purchase Agreement. 
 (i) No Inconsistent Agreements. Neither the Company nor any of its Subsidiaries has entered, as of the date hereof, nor shall the
Company or any of its Subsidiaries, on or after the date of this Agreement, enter into any agreement with respect to its securities, that would have the effect of impairing the rights granted to the Holders in this Agreement or otherwise conflicts
with the provisions hereof. Except as set forth on Schedule 6(i), neither the Company nor any of its Subsidiaries has previously entered into any agreement granting any registration rights with respect to any of its securities to any Person
that have not been satisfied in full. 
 (j) Execution and Counterparts. This Agreement may be executed in two or more
counterparts, all of which when taken together shall be considered one and the same agreement and shall become effective when counterparts have been signed by each party and delivered to the other party, it being understood that both parties need
not sign the same counterpart. In the event that any signature is delivered by facsimile transmission or by e-mail delivery of a “.pdf” format data file, such signature shall create a valid and binding obligation of the party executing (or
on whose behalf such signature is executed) with the same force and effect as if such facsimile or “.pdf” signature page were an original thereof. 
 (k) Governing Law. All questions concerning the construction, validity, enforcement and interpretation of this Agreement shall be determined in accordance with the provisions of the Purchase
Agreement. 
 (l) Cumulative Remedies. The remedies provided herein are cumulative and not exclusive of any other
remedies provided by law. 
 (m) Severability. If any term, provision, covenant or restriction of this Agreement is held
by a court of competent jurisdiction to be invalid, illegal, void or unenforceable, the remainder of the terms, provisions, covenants and restrictions set forth herein shall remain in full force and effect and shall in no way be affected, impaired
or invalidated, and the parties hereto shall use their commercially reasonable efforts to find and employ an alternative means to achieve the same or substantially the same result as that contemplated by such term, provision, covenant or
restriction. It is hereby stipulated and declared to be the intention of the parties that they would have executed the remaining terms, provisions, covenants and restrictions without including any of such that may be hereafter declared invalid,
illegal, void or unenforceable. 

 (n) Headings. The headings in this Agreement are for convenience only, do not
constitute a part of the Agreement and shall not be deemed to limit or affect any of the provisions hereof. 
 (o)
Independent Nature of Holders’ Obligations and Rights. The obligations of each Holder hereunder are several and not joint with the obligations of any other Holder hereunder, and no Holder shall be responsible in any way for the
performance of the obligations of any other Holder hereunder. Nothing contained herein or in any other agreement or document delivered at any closing, and no action taken by any Holder pursuant hereto or thereto, shall be deemed to constitute the
Holders as a partnership, an association, a joint venture or any other kind of entity, or create a presumption that the Holders are in any way acting in concert with respect to such obligations or the transactions contemplated by this Agreement.
Each Holder shall be entitled to protect and enforce its rights, including without limitation the rights arising out of this Agreement, and it shall not be necessary for any other Holder to be joined as an additional party in any proceeding for such
purpose. 
 ******************** 
 (Signature Pages Follow) 

 IN WITNESS WHEREOF, the parties have executed this Registration Rights Agreement as of the
date first written above. 
  

			
	NMT MEDICAL, INC. 
		
	By:	 	  

		 	Name:
		 	Title:

 [SIGNATURE PAGE OF HOLDERS
FOLLOWS] 

 [SIGNATURE PAGE OF HOLDERS TO NMT MEDICAL, INC. RRA] 
 Name of Holder:
                                        

 Signature of Authorized Signatory of Holder:
                                        

 Name of Authorized Signatory:
                                        

 Title of Authorized Signatory:
                                        

 [SIGNATURE PAGES CONTINUE] 

 Annex A 
 Plan of Distribution 
 Each Selling Stockholder (the
“Selling Stockholders”) of the common stock and any of their pledgees, assignees and successors-in-interest may, from time to time, sell any or all of their shares of common stock covered hereby on the Nasdaq Capital Market or any
other stock exchange, market or trading facility on which the shares are traded or in private transactions. These sales may be at fixed or negotiated prices. A Selling Stockholder may use any one or more of the following methods when selling shares:

  

	 	•	 	 ordinary brokerage transactions and transactions in which the broker-dealer solicits purchasers; 

  

	 	•	 	 block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to
facilitate the transaction; 

  

	 	•	 	 purchases by a broker-dealer as principal and resale by the broker-dealer for its account; 

  

	 	•	 	 an exchange distribution in accordance with the rules of the applicable exchange; 

  

	 	•	 	 privately negotiated transactions; 

  

	 	•	 	 settlement of short sales entered into after the effective date of the registration statement of which this prospectus is a part;

  

	 	•	 	 in transactions through broker-dealers that agree with the Selling Stockholders to sell a specified number of such shares at a stipulated price per
share; 

  

	 	•	 	 through the writing or settlement of options or other hedging transactions, whether through an options exchange or otherwise;

  

	 	•	 	 a combination of any such methods of sale; or 

  

	 	•	 	 any other method permitted pursuant to applicable law. 

 The Selling Stockholders may also sell shares under Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”), if available, rather than under this prospectus.

 Broker-dealers engaged by the Selling Stockholders may arrange for other brokers-dealers to participate in sales.
Broker-dealers may receive commissions or discounts from the Selling Stockholders (or, if any broker-dealer acts as agent for the

 
purchaser of shares, from the purchaser) in amounts to be negotiated, but, except as set forth in a supplement to this Prospectus, in the case of an agency transaction not in excess of a
customary brokerage commission in compliance with FINRA Rule 2440; and in the case of a principal transaction a markup or markdown in compliance with FINRA IM-2440. 
 In connection with the sale of the common stock or interests therein, the Selling Stockholders may enter into hedging transactions with broker-dealers or other financial institutions, which may in turn
engage in short sales of the common stock in the course of hedging the positions they assume. The Selling Stockholders may also sell shares of the common stock short and deliver these securities to close out their short positions, or loan or pledge
the common stock to broker-dealers that in turn may sell these securities. The Selling Stockholders may also enter into option or other transactions with broker-dealers or other financial institutions or create one or more derivative securities
which require the delivery to such broker-dealer or other financial institution of shares offered by this prospectus, which shares such broker-dealer or other financial institution may resell pursuant to this prospectus (as supplemented or amended
to reflect such transaction). 
 The Selling Stockholders and any broker-dealers or agents that are involved in selling the
shares may be deemed to be “underwriters” within the meaning of the Securities Act in connection with such sales. In such event, any commissions received by such broker-dealers or agents and any profit on the resale of the shares purchased
by them may be deemed to be underwriting commissions or discounts under the Securities Act. Each Selling Stockholder has informed the Company that it does not have any written or oral agreement or understanding, directly or indirectly, with any
person to distribute the Common Stock. 
 The Company is required to pay certain fees and expenses incurred by the Company
incident to the registration of the shares. The Company has agreed to indemnify the Selling Stockholders against certain losses, claims, damages and liabilities, including liabilities under the Securities Act. 
 Because Selling Stockholders may be deemed to be “underwriters” within the meaning of the Securities Act, they will be subject to
the prospectus delivery requirements of the Securities Act including Rule 172 thereunder. The Selling Stockholders have advised us that there is no underwriter or coordinating broker acting in connection with the proposed sale of the resale shares
by the Selling Stockholders. 
 We agreed to keep this prospectus effective until the earlier of (i) the date on which the
shares may be resold by the Selling Stockholders without registration and without regard to any volume or manner-of-sale limitations by reason of Rule 144, without the requirement for the Company to be in compliance with the current public
information under Rule 144 under the Securities Act or any other rule of similar effect or (ii) all of the shares have been sold pursuant to this prospectus or Rule 144 under the Securities Act or any other rule of similar effect. The resale
shares will be sold only through registered or licensed brokers or dealers if required under applicable state securities laws. In addition, in certain states, the resale shares of Common Stock covered

 
hereby may not be sold unless they have been registered or qualified for sale in the applicable state or an exemption from the registration or qualification requirement is available and is
complied with. 
 Under applicable rules and regulations under the Exchange Act, any person engaged in the distribution of the
resale shares may not simultaneously engage in market making activities with respect to the common stock for the applicable restricted period, as defined in Regulation M, prior to the commencement of the distribution. In addition, the Selling
Stockholders will be subject to applicable provisions of the Exchange Act and the rules and regulations thereunder, including Regulation M, which may limit the timing of purchases and sales of shares of the common stock by the Selling Stockholders
or any other person. We will make copies of this prospectus available to the Selling Stockholders and have informed them of the need to deliver a copy of this prospectus to each purchaser at or prior to the time of the sale (including by compliance
with Rule 172 under the Securities Act). 

 Annex B 
 NMT MEDICAL, INC. 
 Selling Stockholder Notice and Questionnaire 

 The undersigned beneficial owner of common stock (the “Registrable Securities”) of NMT Medical, Inc., a
Delaware corporation (the “Company”), understands that the Company has filed or intends to file with the Securities and Exchange Commission (the “Commission”) a registration statement (the “Registration
Statement”) for the registration and resale under Rule 415 of the Securities Act of 1933, as amended (the “Securities Act”), of the Registrable Securities, in accordance with the terms of the Registration Rights Agreement
(the “Registration Rights Agreement”) to which this document is annexed. A copy of the Registration Rights Agreement is available from the Company upon request at the address set forth below. All capitalized terms not otherwise
defined herein shall have the meanings ascribed thereto in the Registration Rights Agreement. 
 Certain legal consequences
arise from being named as a selling stockholder in the Registration Statement and the related prospectus. Accordingly, holders and beneficial owners of Registrable Securities are advised to consult their own securities law counsel regarding the
consequences of being named or not being named as a selling stockholder in the Registration Statement and the related prospectus. 
 NOTICE 
 The undersigned beneficial owner (the “Selling Stockholder”) of Registrable
Securities hereby elects to include the Registrable Securities owned by it in the Registration Statement. 

 The undersigned hereby provides the following information to the Company and represents and warrants that
such information is accurate: 
 QUESTIONNAIRE 
  

					
	 1.
	  	Name.
			
		  	(a)	  	Full Legal Name of Selling Stockholder
			
		  		  	  

			
		  	(b)	  	Full Legal Name of Registered Holder (if not the same as (a) above) through which Registrable Securities are held:
			
		  		  	  

			
		  	(c)	  	Full Legal Name of Natural Control Person (which means a natural person who directly or indirectly alone or with others has power to vote or dispose of the securities covered by
this Questionnaire):
			
		  		  	  

	 2.
	  	  
 Address for Notices to Selling Stockholder:

	  

	  

	  

					
	Telephone:	  	  

					
	 Fax:
	  	  

					
	 Contact Person:
	  	  

  

					
	 3.
	  	Broker-Dealer Status:
			
		  	(a)	  	Are you a broker-dealer?
			
		  		  	Yes   ̈            No   ̈
			
		  	(b)	  	If “yes” to Section 3(a), did you receive your Registrable Securities as compensation for investment banking services to the Company?
			
		  		  	Yes   ̈            No   ̈
			
		  	Note:	  	If “no” to Section 3(b), the Commission’s staff has indicated that you should be identified as an underwriter in the Registration Statement.

					
			
		  	(c)	  	Are you an affiliate of a broker-dealer?
			
		  		  	Yes   ̈            No   ̈
			
		  	(d)	  	If you are an affiliate of a broker-dealer, do you certify that you purchased the Registrable Securities in the ordinary course of business, and at the time of the purchase of
the Registrable Securities to be resold, you had no agreements or understandings, directly or indirectly, with any person to distribute the Registrable Securities?
			
		  		  	Yes   ̈            No   ̈
			
		  	Note:	  	If “no” to Section 3(d), the Commission’s staff has indicated that you should be identified as an underwriter in the Registration Statement.
		
	 4.
	  	Beneficial Ownership of Securities of the Company Owned by the Selling Stockholder.
		
		  	Except as set forth below in this Item 4, the undersigned is not the beneficial or registered owner of any securities of the Company other than the securities
issuable pursuant to the Purchase Agreement.
			
		  	(a)	  	Type and Amount of other securities beneficially owned by the Selling Stockholder:
			
		  		  	  

			
		  		  	  

					
		
	 5.
	  	Relationships with the Company:
		
		  	Except as set forth below, neither the undersigned nor any of its affiliates, officers, directors or principal equity holders (owners of 5% of more of the equity
securities of the undersigned) has held any position or office or has had any other material relationship with the Company (or its predecessors or affiliates) during the past three years.
		
		  	State any exceptions here:
		
		  	  

		
		  	  

	
	 The undersigned agrees to promptly notify the Company of any inaccuracies or changes in the information
provided herein that may occur subsequent to the date hereof at any time while the Registration Statement remains effective.
  
 By signing below, the undersigned consents to the disclosure of the information contained herein in its answers to Items 1 through 5 and
the inclusion of such information in the Registration Statement and the related prospectus and any amendments or supplements thereto. The undersigned understands that such information will be relied upon by the Company in connection with the
preparation or amendment of the Registration Statement and the related prospectus and any amendments or supplements thereto.
  
 IN WITNESS WHEREOF the undersigned, by authority duly given, has caused this Notice and Questionnaire to be executed and delivered either
in person or by its duly authorized agent.

  

									
	 Date:
	 	  
	 		 	Beneficial Owner:	 	  

  

							
		 		 	By:	 	  

		 		 		 	Name:
		 		 		 	Title:

 PLEASE FAX A COPY (OR EMAIL A .PDF COPY) OF THE
COMPLETED AND EXECUTED NOTICE AND QUESTIONNAIRE, AND RETURN THE ORIGINAL BY OVERNIGHT MAIL, TO:2010 Management Incentive Compensation Plan Summary

 Exhibit 10.1 
 2010 MANAGEMENT INCENTIVE COMPENSATION PLAN SUMMARY 
 Alliant Energy
Corporation (the “Company”) maintains the Management Incentive Compensation Plan (MICP), which provides eligible employees with a cash bonus if corporate and individual goals are met. The following is a summary of the material terms of the
MICP applicable to named executive officers of the Company for 2010. 
 Alliant Energy Corporate Performance: The tables below
outline the 2010 goals against which corporate performance will be measured and the funding associated with each level of achievement. An MICP incentive pool is established based on achievement of these corporate performance measures. 
 2010 CORPORATE PERFORMANCE MEASURES 
 For Purposes of Determining the Short-Term Incentive Pool 
 Financial Corporate
Performance Measures
  

					
	 Earnings Per Share (EPS)
(1)
	  	 Cash Flow (2)

	 Level
	  	 Funding
	  	 
	Maximum ($2.81)	  	150%	  	
			
	Target ($2.45)	  	100%	  	Target ($625 Million)
			
	Threshold (3) ($2.20)	  	20%	  	
			
	 Weighting of EPS in
 final Corporate Performance
	  	 	  	 Weighting of Cash Flow in
 final Corporate Performance

	60%	  	10%

  

	(1)	Earnings per share (EPS) amounts used for purposes of determining short-term incentive pool will be based on utility earnings from continuing operations only, as
adjusted by items excluded from our guidance as provided in our earnings release dated February 4, 2010. 

	(2)	Cash flow amount used for purposes of determining short-term incentive pool funding will be based on utility and Alliant Energy Corporate Services, Inc. (SERVCO) cash
flows from operations only. Calculation of the cash flow amount will exclude changes from sales of customer receivables, tax-effected pension contributions and net collateral received by or paid by the utilities and SERVCO. 

	(3)	If the Threshold EPS level, which is 90% of the mid-point of utilities earnings per share guidance issued on February 4, 2010, is not met, there will be no payout
for the 2010 plan year. 

  

 1 

 Other Corporate Performance Measures 
  

					
	 Diversity (1)
	  	 Safety
	  	 Customer Satisfaction

	Diverse population target	  		  	
			
	Women in non-traditional jobs	  		  	
	Spending targets to minority- and women-owned businesses	  	 Reduce OSHA reportable
 incidents
 by a specified amount
	  	 Achieve specified customer
 satisfaction benchmark

			
	 Weighting of Diversity in
 final Corporate Performance
	  	 Weighting of Safety in
 final Corporate Performance
	  	 Weighting of Customer
 Satisfaction
 in final
Corporate Performance

	5%	  	10%	  	15%

  

	(1)	Diversity goal will be met, and 5% of incentive pool will fund, if two of the three diversity metrics are met. 

 MICP Incentive Pool: The short-term incentive pool varies from 0% to 150% of the total target incentives. If
threshold EPS is not met, the pool will not fund. If the pool is not funded, no incentive payments will be made regardless of achievement of the other corporate goals or individual goals. If threshold EPS is met, the pool will be funded based on the
final EPS results, which provides the funding level, and the achievement of the other goals. Each goal that is met will cause funding of the pool based on that goal’s weighting. The total incentive pool will be multiplied by the funding level
determined by EPS results. 
 MICP Target Incentives: If the incentive pool is funded, achievement
of the target level goals and objectives may result in a payout of 100% of the incentive opportunity. However, a participant’s final award may range anywhere from 0 to 200% of that target based on an individual’s achievement of individual
performance goals. Incentive opportunity is expressed as a percentage of eligible earnings for the plan year. 
 Individual Performance Goals: If the incentive pool is funded, a participant’s final award will be based on achievement of individual performance goals. For 2010, there are individual financial and execution goals for the
CEO and other executive officers. Individual financial goals are weighted at 60%. The 2010 annual financial goals are to achieve Alliant Energy Corporation consolidated EPS from continuation operations of $2.60 for the CEO and CFO, and Utility EPS
from continuing operations of $2.45 for all the named executive officers. All officers have a target to achieve cash flows from continuing operations of $625 million at utilities and SERVCO, excluding changes in sales of customer receivables,
tax-effected pension contributions and net collateral held by or paid by the utilities and SERVCO, if applicable. The CEO has a financial goal related to RMT, Inc. Mr. Aller has a financial goal related to certain non-regulated operations.
Execution goals weighted at 40% include various accomplishments for customer satisfaction; diversity; safety; the WP&L and IP&L future rate cases; utility

  

 2 

 
wind projects; utility advanced metering infrastructure projects; utility reliability standards; operational achievements; clean air compliance plan; environmental; strategic planning; succession
planning; advocating to achieve manageable governmental outcomes; and cost control and other efficiency goals. These individual execution goals are weighted at 40% 
 Claw-back provision: The Company will seek reimbursement of excess incentive awards paid to executive officers
under the MICP if the Company’s financial statements are the subject of a restatement due to gross negligence, intentional misconduct or fraud. This provision applies to incentive payments made within 12 months of the restatement. 

 

 3

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