SEC Filing Document

Company: DUKE Robotics Corp.
Ticker: DUKR
CIK: 1638911
Filing Type: S-1
Document Type: EX-4.2
Date Filed: 2026-04-01
Accession Number: 0001213900-26-037765
Exchange: OTC
SIC Code: 3721
SIC Description: Aircraft
URL: https://www.sec.gov/Archives/edgar/data/1638911/000121390026037765/ea028409601ex4-2.htm

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the proposed date of filing of such registration statement. Such notice to the Holders shall continue to be given for each applicable registration statement filed (during the period in which the Warrant is exercisable) by the Company until such time as all of the Piggy-Back Registrable Securities have been registered and sold. The Holders of the Piggy-Back Registrable Securities shall exercise the “piggy-back” rights provided for herein by giving written notice, within ten days of the receipt of the Company’s notice of its intention to file a registration statement. The Company shall cause any registration statement filed pursuant to the above “piggyback” rights to remain effective for at least nine (9) months from the date that the Holders of the Piggy-Back Registrable Securities are first given the opportunity to sell all of such securities. (c) General Terms. These additional terms shall relate to registration under Sections 5(a) above: i. Indemnification.

(w) The Company shall, to the fullest
extent permitted by applicable law, indemnify the Holder(s) of the Registrable Securities to be sold pursuant to any registration statement
hereunder and each person, if any, who controls such Holders within the meaning of Section 15 of the Act or Section 20(a) of the Exchange
Act against all loss, claim, damage, expense or liability (including all reasonable attorneys’ fees and other expenses reasonably
incurred in investigating, preparing or defending against litigation, commenced or threatened, or any claim whatsoever whether arising
out of any action between the underwriter and the Company or between the underwriter and any third party or otherwise) to which any of
them may become subject under the Act, the Exchange Act or otherwise, arising from such registration statement; provided, however,
that, with respect to any Holder of Registrable Securities, this indemnity shall not apply to any loss, liability, claim, damage or expense
to the extent arising out of an untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity
with written information furnished to the Company by such Holder expressly for use in the registration statement (or any amendment thereto),
or any preliminary prospectus or the prospectus (or any amendment or supplement thereto).

(x) The Holder(s) of the Registrable Securities
to be sold pursuant to such registration statement, and their successors and assigns, shall severally, and not jointly, indemnify the
Company, its officers and directors and each person, if any, who controls the Company within the meaning of Section 15 of the Act or Section
20(a) of the Exchange Act, against all loss, claim, damage, expense or liability (including all reasonable attorneys’ fees and other
expenses reasonably incurred in investigating, preparing or defending against any claim whatsoever) to which they may become subject under
the Act, the Exchange Act or otherwise, arising from information furnished by or on behalf of such Holders, or their successors or assigns,
in writing, for specific inclusion in such registration statement (or any amendment thereto), or any preliminary prospectus or the prospectus
(or any amendment or supplement thereto).

(y) Each indemnified party shall give
prompt notice to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but
failure to so notify an indemnifying party shall not relieve the indemnifying party from any liability it may have under this Agreement,
except to the extent that the indemnifying party is prejudiced thereby. If it so elects, after receipt of such notice, an indemnifying
party, jointly with any other indemnifying parties receiving such notice, may assume the defense of such action with counsel chosen by
it; provided, however, that the indemnified party shall be entitled to participate in (but not control) the defense of such
action with counsel chosen by it, the reasonable fees and expenses of which shall be paid by such indemnified party, unless a conflict
would arise if one counsel were to represent both the indemnified party and the indemnifying party, in which case the reasonable fees
and expenses of counsel to the indemnified party shall be paid by the indemnifying party or parties. In no event shall the indemnifying
party or parties be liable for a settlement of an action with respect to which they have assumed the defense if such settlement is effected
without the written consent of such indemnifying party, or for the reasonable fees and expenses of more than one counsel for (i) the Company,
its officers, directors and controlling persons as a group, and (ii) the selling Holders and their controlling persons as a group, in
each case, in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same
general allegations or circumstances; provided, however, that if, in the reasonable judgment of an indemnified party, a
conflict of interest may exist between such indemnified party and the Company or any other of such indemnified parties with respect to
such claim, the indemnifying party shall be obligated to pay the reasonable fees and expenses of such additional counsel.

(z) If the indemnification provided for
in or pursuant to Section 5(b)(i) is due in accordance with the terms hereof, but held by a court of competent jurisdiction to be unavailable
or unenforceable in respect of any losses, claims, damages, liabilities or expenses referred to therein, then each applicable 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 losses, claims, damages, liabilities or expenses in such proportion as is appropriate to reflect the relative fault of the indemnifying
party on the one hand and of the indemnified party on the other in connection with the statements or omissions which result in such losses,
claims, damages, liabilities or expenses as well as any other relevant equitable considerations. The relative fault of the indemnifying
party on the one hand and of the indemnified party on the other 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 the indemnifying party or by the indemnified party, and by such party’s relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission.

ii. Documents Delivered to Holders.
The Company shall furnish the initial Holder a signed counterpart, addressed to the initial Holder, of (i) an opinion of counsel to the
Company, dated the effective date of such registration statement (or, if such registration includes an underwritten public offering, an
opinion dated the date of the closing under any underwriting agreement related thereto), and (ii) if such registration statement is filed
in connection of an underwritten public offering, a “cold comfort” letter dated the effective date of such registration statement
(or, if such registration includes an underwritten public offering, a letter dated the date of the closing under the underwriting agreement)
signed by the independent public accountants who have issued a report on the Company’s financial statements included in such registration
statement, in each case covering substantially the same matters with respect to such registration statement (and the prospectus included
therein) and, in the case of such accountants’ letter, with respect to events subsequent to the date of such financial statements,
as are customarily covered in opinions of issuer’s counsel and in accountants’ letters delivered to underwriters in underwritten
public offerings of securities.