Form of Senior Debt Security



 Exhibit (4)(c) 
 [Form of Senior Note] 
 [Face of Security] 
 If the registered owner of this Security is the Depositary or a nominee of the Depositary, this Security is a Global Security and the following legend is applicable except as specified on the reverse hereof:

 THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE THEREOF. THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF,
EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE. 
 [Insert any legend required by the Internal Revenue Code and the regulations
thereunder.] 
 THIS SECURITY IS NOT A DEPOSIT AND IS NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE BANK INSURANCE FUND, THE SAVINGS
ASSOCIATION INSURANCE FUND OR ANY OTHER GOVERNMENTAL AGENCY. 
 S&T BANCORP, INC. 
  

				
	 No.___________
	  	$	________

 S&T Bancorp, Inc., a Pennsylvania corporation which is registered as a bank holding company under the Bank
Holding Company Act of 1956, as amended (herein called the “Company”), which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to
                    , or registered assigns, the principal sum of
                     Dollars on
                     [(if the Security is to bear interest prior to Maturity, insert:) , and to pay interest thereon from
                     or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually on
                     and
                     in each year, commencing
                    , at the rate of         % per annum, until the principal hereof is paid or
made available for payment] [(if applicable, insert:), provided that any principal and premium, and any such installment of interest, which is overdue shall bear interest at the rate of         % per
annum (to the extent that the payment of such interest shall be legally enforceable), from the dates such amounts are due until they are paid or made available for payment, and such interest shall 








 
be payable on demand]. [The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date will, as provided in such Indenture,
be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest, which shall be the
                     or
                     (whether or not a Business Day), as the case may be, next preceding such Interest Payment Date. Any such interest not so
punctually paid or duly provided for will forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose name this Security (or one or more Predecessor Securities) is registered at the close of
business on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Securities of this series not less than 10 days prior to such Special Record Date, or be paid at any
time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Securities of this series may be listed, and upon such notice as may be required by such exchange, all as more fully provided in said
Indenture]. 
 [(If the Security is not to bear interest prior to Maturity, insert:) The principal of this Security shall not bear interest except in the
case of a default in payment of principal upon acceleration, upon redemption or at Stated Maturity and in such case the overdue principal and any overdue premium shall bear interest at the rate of
        % per annum (to the extent that the payment of such interest shall be legally enforceable), from the dates such amounts are due until they are paid or made available for payment. Interest on any
overdue principal or premium shall be payable on demand.] [Any such interest on overdue principal or premium which is not paid on demand shall bear interest at the rate of         % per annum (to the
extent that the payment of such interest on interest shall be legally enforceable), from the date of such demand until the amount so demanded is paid or made available for payment. Interest on any overdue interest shall be payable on demand.]

 Payment of the principal of (and premium, if any) and [(if applicable, insert:) any such] interest on this Security will be made at the office or agency
of the Company maintained for that purpose in                     , in such coin or currency of the United States of America as at the time of
payment is legal tender for payment of public and private debts [(if applicable, insert:) ; provided, however, that at the option of the Company payment of interest may be made by check mailed to the address of the Person entitled thereto as such
address shall appear in the Security Register]. 
 Reference is hereby made to the further provisions of this Security set forth on the reverse hereof, which
further provisions shall for all purposes have the same effect as if set forth at this place. 
 Unless the certificate of authentication hereon has been
executed by the Trustee referred to on the reverse hereof by manual signature, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 







 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal. 
 Dated: 
  

			
	S&T BANCORP, INC.
		
	By: 	 	 


  

			
	Attest:	 	 
		 	

 CERTIFICATE OF AUTHENTICATION 
 This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. 
  

			
	                                       
                                         
                      ,
	As Trustee
		
	By: 	 	 
		 	Authorized Officer


 [Reverse of Security] 
 This Security is one of a duly authorized issue of securities of the Company (herein called the “Securities”), issued and to be issued in one or more series under an Indenture, dated as of
                     (herein called the “Indenture”, which term shall have the meaning assigned to it in such instrument), between
the Company and                     , as Trustee (herein called the “Trustee”, which term includes any successor trustee under the
Indenture), and reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the terms upon which the
Securities are, and are to be, authenticated and delivered. This Security is one of the series designated on the face hereof [(if applicable, insert:) , limited in aggregate principal amount to
$            ]. 
 [(If applicable, insert:) The Securities of this series are subject to
redemption upon not less than 30 days’ notice by mail, [(if applicable, insert:) (1) on                      in any year commencing
with the year                      and ending with the year
                     through operation of the sinking fund for this series at a Redemption Price equal to 100% of the principal amount, and
(2)] at any time [(if applicable, insert:) on or after                     , 20__], as a whole or in part, at the election of the Company, at
the following Redemption Prices (expressed as percentages of the principal amount): If redeemed [(if applicable, insert:) on or before
                    ,
                    ,                %, and if
redeemed] during the 12-month period beginning                      of the years indicated, 
  

							
	 Year
	  	Redemption Price	  	Year	  	Redemption Price








 and thereafter at a Redemption Price equal to
            % of the principal amount, together in the case of any such redemption [(if applicable, insert:) (whether through operation of the sinking fund or otherwise)] with
accrued interest to the Redemption Date, but interest installments whose Stated Maturity is on or prior to such Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor Securities, of record at the close of
business on the relevant Record Dates referred to on the face hereof, all as provided in the Indenture.] 
 [(If applicable, insert:) The Securities of this
series are subject to redemption upon not less than 30 days’ notice by mail, (1) on                      in any year commencing with
the year                      and ending with the year
                     through operation of the sinking fund for this series at the Redemption Prices for redemption through operation of the
sinking fund (expressed as percentages of the principal amount) set forth in the table below, and (2) at any time [(if applicable, insert:) on or after
                    ], as a whole or in part, at the election of the Company, at the Redemption Prices for redemption otherwise than through
operation of the sinking fund (expressed as percentages of the principal amount) set forth in the table below: If redeemed during the 12-month period beginning
                     of the years indicated, 
  

					
	 Year
	  	Redemption Price For Redemption
Through Operation of the Sinking
Fund	  	Redemption Price For Redemption
Otherwise Than Through Operation
of the Sinking Fund


 and thereafter at a Redemption Price equal to         % of the
principal amount, together in the case of any such redemption (whether through operation of the sinking fund or otherwise) with accrued interest to the Redemption Date, but interest installments whose Stated Maturity is on or prior to such
Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor Securities, of record at the close of business on the relevant Record Dates referred to on the face hereof, all as provided in the Indenture.] 

[(If applicable, insert:) Notwithstanding the foregoing, the Company may not, prior to
                    , redeem any Securities of this series as contemplated by [(if applicable, insert:) Clause (2) of] the preceding
paragraph as a part of, or in anticipation of, any refunding operation by the application, directly or indirectly, of moneys borrowed having an interest cost to the Company (calculated in accordance with generally accepted financial practice) of
less than         % per annum.] 
 [(If applicable, insert:) The sinking fund for this series provides for the
redemption on                      in each year beginning with the year
                     and ending with the year
                     of [(if applicable, insert:) not less than
$             (“mandatory sinking fund”) and not more 








 
than] $             aggregate principal amount of Securities of this series. Securities of
this series acquired or redeemed by the Company otherwise than through [(if applicable, insert:) mandatory] sinking fund payments may be credited against subsequent [(if applicable, insert:) mandatory] sinking fund payments otherwise required to be
made [(if applicable, insert:) , in the inverse order in which they become due].] 
 [(If the Security is subject to redemption of any kind, insert:) In the
event of redemption of this Security in part only, a new Security or Securities of this series and of like tenor for the unredeemed portion hereof will be issued in the name of the Holder hereof upon the cancellation hereof.] 
 [(If applicable, insert:) The Indenture contains provisions for defeasance at any time of [the entire indebtedness of this Security] [or] [certain restrictive covenants
and Events of Default with respect to this Security] [, in each case] upon compliance with certain conditions set forth in the Indenture.] 
 [(If the
Security is not an Original Issue Discount Security, insert:) If an Event of Default with respect to Securities of this series shall occur and be continuing, the principal of the Securities of this series may be declared due and payable in the
manner and with the effect provided in the Indenture.] 
 [(If the Security is an Original Issue Discount Security, insert:) If an Event of Default with
respect to Securities of this series shall occur and be continuing, an amount of principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. Such amount shall be equal to -
insert formula for determining the amount. Upon payment (i) of the amount of principal so declared due and payable and (ii) of interest on any overdue principal, premium and interest (in each case to the extent that the payment of such
interest shall be legally enforceable), all of the Company’s obligations in respect of the payment of the principal of and premium and interest, if any, on the Securities of this series shall terminate.] 
 The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the
rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding of each
series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at the time Outstanding, on behalf of the Holders of all Securities of such series, to
waive compliance by the Company with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such Holder
and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Security. 







 As provided in and subject to the provisions of the Indenture, the Holder of this Security shall not have the right to
institute any proceeding with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a continuing Event of Default
with respect to the Securities of this series, the Holders of not less than 25% in principal amount of the Securities of this series at the time Outstanding shall have made written request to the Trustee to institute proceedings in respect of such
Event of Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in principal amount of Securities of this series at the time Outstanding a direction inconsistent with
such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement
of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein. 
 No reference herein to the
Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Security at the times, place and
rate, and in the coin or currency, herein prescribed. 
 As provided in the Indenture and subject to certain limitations therein set forth, the transfer of
this Security is registrable in the Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on this Security are payable,
duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new
Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 
 The Securities of this series are issuable only in registered form without coupons in denominations of $             and any integral multiple
thereof. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized
denomination, as requested by the Holder surrendering the same. 
 No service charge shall be made for any such registration of transfer or exchange, but the
Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 
 Prior to due presentment of
this Security for registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be
overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 







 All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the
Indenture. times, place and rate, and in the coin or currency, herein prescribed. 
 As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Security is registrable in the Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on
this Security are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or his attorney duly authorized in writing, and
thereupon one or more new Securities of this series and of like tenor, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.