Sorrento Distributes Dividend Confirmation Statements to 146 Brokerage Firms and Provides Specific Instruction to Continental Stock Transfer & Trust Company Regarding the Dividend of Scilex Holding Company Common Stock

SAN DIEGO, Feb. 03, 2023 (GLOBE NEWSWIRE) -- Sorrento Therapeutics, Inc. (Nasdaq: SRNE, “Sorrento”) today distributed dividend confirmation statements to 146 brokerage firms regarding its recent dividend to Sorrento stockholders of shares of common stock of Scilex Holding Company (Nasdaq: SCLX, “Scilex”) held by Sorrento. These statements, which contain the account numbers and amount of Scilex dividend shares, were previously mailed out by Continental Stock Transfer & Trust Company.

The dividend confirmation statements are being distributed on behalf of Sorrento and Scilex to notify each brokerage firm of Sorrento’s previously announced stock dividend (the “Dividend”) consisting of an aggregate of 76,000,000 shares (the “Dividend Stock”) of common stock of Scilex held by Sorrento to record holders of (i) Sorrento’s common stock (the “Record Common Holders”) as of the close of business on January 9, 2023 (the “Record Date”), and (ii) certain warrants to purchase Sorrento common stock (which have or may have the right to participate in the Dividend pursuant to the terms of their respective warrants).

According to Sorrento’s estimates, approximately 60 million or more shares of Sorrento common stock were sold “short” as of the Record Date. In the event the shares of Sorrento common stock were held through a brokerage firm, bank, dealer or other similar organization and were sold “short” as of the Record Date, holders should consult with their financial advisor, broker or other agent immediately to determine whether they may also be deemed “short” Scilex common stock as a result of the Dividend, as well as any obligations required for you to cover your “short” position(s). Please note that “naked short” sales or “naked short” positions in any Sorrento common stock may constitute a violation of the U.S. Securities and Exchange Commission Regulation SHO.

Each Record Common Holder is entitled to receive 0.1410127 of a share of Scilex common stock for each one share of Sorrento common stock held by such Record Common Holder as of the close of business on the Record Date. The payment date for the Dividend was January 19, 2023. The resulting fewer number of shares of Scilex common stock that will be available to trade could cause the trading market of the common stock of Scilex to become less liquid. As noted above, Scilex’s transfer agent, Continental Stock Transfer & Trust Company (“CST”), has already distributed to brokerage firms, as the Record Common Holder (for the benefit of their customers that held Sorrento common stock on the Record Date), a book-entry/DRS transaction confirmation (the “Dividend Confirmation Statement”) reflecting the portion of the Dividend Stock allocated to such firm (for the benefit of their customers that held Sorrento common stock on the Record Date), which Dividend Confirmation Statements were mailed to the addresses on record with The Depository Trust & Clearing Corporation.

In the event that brokerage firms did not receive copies of the Dividend Confirmation Statements, please contact CST immediately. Sorrento and Scilex are requesting that each brokerage firm distribute the Dividend Stock to the actual beneficial owners thereof and to reflect Scilex’s CUSIP number 80880W106 and value of Scilex common stock on each beneficial owner’s brokerage statement.  

Sorrento and Scilex have given specific instructions to Scilex’s transfer agent, CST, on how to answer certain inquiries from Record Holders and brokerage firms:

• When beneficial holders call CST:
  • CST will direct the beneficial holders to contact their brokers.
• When brokers call CST:
  • CST needs to confirm with the broker that such broker has received their Dividend Confirmation Statement.
  • If brokers did not get the Dividend Confirmation Statement, CST will distribute the Dividend Confirmation Statement again to the applicable broker.
    
• CST will communicate to the brokers that Sorrento and Scilex demand that brokers distribute the Scilex common stock to the individual accounts of the beneficial holders.
  
• If brokers refuse to distribute the Scilex common stock, Sorrento and Scilex will work with CST and the beneficial holder in exiting their brokerage accounts out of “street” name and into book entry format with CST so that the beneficial holder becomes the direct holder of record with CST. The beneficial holders will be charged $15 for the exit of such positions from their brokerage accounts.
  

To obtain a copy of the Dividend Confirmation Statement and to have the Dividend Stock reflected on such Dividend Confirmation Statement further distributed to the actual beneficial owners thereof, please contact Scilex’s transfer agent, CST, by phone or email at:

Continental Stock Transfer & Trust Company
Telephone Number: 800-509-5586
Email Address: [e-mail]

Broker List

Broker Name	Broker Address		Broker Name	Broker Address
ABN AMRO CLEARING CHICAGO LLC https://www.abnamro.com/clearing/en/contact-form	175 WEST JACKSON BLVD. CHICAGO IL ILLINOIS 60604 US		Albert Fried & Company LLC [e-mail]	45 BROADWAY, 24TH FLOOR 24TH FLOOR NEW YORK NY NEW YORK 10006 US
AMALGAMATED BANK https://www.amalgamatedbank.com/contact	275 7TH AVENUE NEW YORK NY NEW YORK 10003 US		AMERICAN ENTERPRISE INVESTMENT SERVICES INC. [e-mail]	682 AMERIPRISE FINANCIAL CENTER MINNEAPOLIS MN MINNESOTA 55474 US

Broker Name	Broker Address		Broker Name	Broker Address
APEX CLEARING CORPORATION [e-mail]	2 GATEWAY CENTER 283-299 MARKET ST 16TH FLOOR NEWARK NJ NEW JERSEY 07102-5005 US		BANK OF AMERICA, NA/GWIM TRUST OPERATIONS 1.800.878.7878 https://www.privatebank.bankofamerica.com/find-an-advisor.html	901 MAIN STREET 12TH FLOOR DALLAS TX TEXAS 23113 US
BANK OF NEW YORK MELLON [e-mail]	111 SANDERS CREEK PARKWAY 2ND FLOOR 2ND FLOOR EAST SYRACUSE NY NEW YORK 13057 US.		BARCLAYS CAPITAL INC. [e-mail]	DTC CUSTODY PARTICIPANT- NY WINDOW -570 WASHINGTON BLVD (ATTN: ROSA HICKS- MILLER OR ROBERT MENDEZ JERSEY CITY NJ NEW JERSEY 07310 US
BARCLAYS CAPITAL INC. [e-mail]	DTC CUSTODY PARTICIPANT- NY WINDOW -570 WASHINGTON BLVD (ATTN: ROSA HICKS-MILLER OR ROBERT MENDEZ JERSEY CITY NJ NEW JERSEY 07310 US		BMO CAPITAL MARKETS CORP. https://capitalmarkets.bmo.com/en/contact-us/	3 2ND STREET 12TH FLOOR JERSEY CITY NJ NEW JERSEY 07302 US
BMO HARRIS BANK NA/TRUST https://www.bmoharris.com/main/contact-us/	11270 W PARK PL MILWAUKEE WI WISCONSIN 53224 US		BMO Nesbitt Burns Inc., Toronto [e-mail]	250 YONGE STREET, 7TH FLOOR 7TH FLOOR TORONTO ON ONTARIO M5B 2M8 CA CANADA
BNP PARIBAS, NEW YORK BRANCH/BNP PARIBAS PRIME BROKERAGE CUSTODIAN [e-mail]	100 WEST 33RD STREET 3RD FLOOR NEW YORK NY NEW YORK 10001		BNP PARIBAS, NEW YORK BRANCH/BNP PARIBAS PRIME BROKERAGE CUSTODIAN [e-mail]	100 WEST 33RD STREET 3RD FLOOR NEW YORK NY NEW YORK 10001
BNY MELLON [e-mail]	PO BOX 392002 500 ROSS STREET PITTSBURGH PA PENNSYLVANIA 15262 US		BNY MELLON/WEALTH MANAGEMENT [e-mail]	1 FREEDOM VALLEY DRIVE OAKS PA PENNSYLVANIA 19456 US
BNYMELLON [e-mail]	111 SANDERS CREEK PARKWAY 2ND FLOOR 2ND FLOOR EAST SYRACUSE		BNYMELLON/RE BARCLAYS CAPITAL SECURITIES LTD. [e-mail]	ONE WALL STREET NEW YORK NY NEW YORK 10286

Broker Name	Broker Address		Broker Name	Broker Address
	NY NEW YORK 13057 US
BNYMELLON/RE CACEIS BANK LUXEMBOURG [e-mail]	500 Grant St. BNY Mellon Center PITTSBURGH PA PENNSYLVANIA 15258		BNYMELLON/RE CACEIS BANK, NETHERLANDS [e-mail]	111 SANDERS CREEK PARKWAY EAST SYRACUSE NY NEW YORK 13057
BNYMELLON/RE CHARLES STANLEY AND COMPANY, LIMITED [e-mail]	111 SANDERS CREEK PARKWAY 2ND FLOOR 2ND FLOOR EAST SYRACUSE NY NEW YORK 13057 US		BNYMELLON/RE ETF - ISHARES DTC/NSCC [e-mail]	111 SANDERS CREEK PARKWAY EAST SYRACUSE NY NEW YORK 13057
BNYMELLON/RE WINTERFLOOD SECURITIES LTD [e-mail]	500 Grant St. BNY Mellon Center PITTSBURGH PA PENNSYLVANIA 15258		BOFA [e-mail]	4804 Deer Lake Drive East FL9-803-04-04- 4th floor JACKSONVILLE FL FLORIDA 32246 US
BOFA [e-mail]	4804 Deer Lake Drive East FL9-803-04-04- 4th floor JACKSONVILLE FL FLORIDA 32246 US		BOFA SECURITIES INC [e-mail]	4804 Deer Lake Drive East FL9-803-04-04- 4th floor JACKSONVILLE FL FLORIDA 32246 US
BROWN BROTHERS HARRIMAN & CO. [e-mail]	140 BROADWAY ATTN: CORPORATE ACTIONS VAULT NEW YORK NY NEW YORK 10005 US		BROWN BROTHERS HARRIMAN & CO./ETF [e-mail]	140 BROADWAY NEW YORK NY NEW YORK 10005
CALDWELL SECURITIES LTD./CDS** [e-mail]	55 UNIVERSITY AVENUE SUITE 340 TORONTO ON ONTARIO M5J 2H7 CANADA		CANACCORD GENUITY CORP. [e-mail]	609 GRANVILLE ST VANCOUVER BC BRITISH COLUMBIA V7Y 1H2 CA CANADA
CANTOR, FITZGERALD & CO. https://www.cantor.com/investor-center/	135 E 57TH ST 5TH FL NEW YORK NY NEW YORK 10041 US		CDS CLEARING AND DEPOSITORY SERVICES INC. [e-mail]	100 ADELAIDE STREET WEST TORONTO ON ONTARIO M5H 1S3 CA CANADA
CETERA INVESTMENT SERVICES LLC [e-mail]	400 FIRST STREET SOUTH, SUITE 300 SUITE 300 ST. CLOUD		CHARLES SCHWAB & CO., INC. 800-435-4000 https://www.schwab.com/contact-us	211 MAIN STREET SAN FRANCISCO CA CALIFORNIA 94105 US

Broker Name	Broker Address		Broker Name	Broker Address
	MN MINNESOTA 56302-0283 US
CI INVESTMENT SERVICES INC. [e-mail]	199 BAY STREET SUITE 2600 TORONTO ON ONTARIO M5L 1E2 CA CANADA		CIBC WORLD MARKETS INC./CDS** [e-mail].	161 BAY STREET 10 FL TORONTO ON ONTARIO M5J 2S8 CA CANADA
CITIBANK, N.A./ETF 1-800-950-5114	3800 CITIGROUP CENTER B2/2 TAMPA FL FLORIDA 33610		CITIBANK, NATIONAL ASSOCIATION 1-800-950-5114	3800 CITIBANK CENTER TAMPA BLDG.B FIRST FLOOR ZONE 8 TAMPA FL FLORIDA 33610-9122 US
CITIGROUP GLOBAL MARKETS, INC. 1-800-950-5114	580 CROSSPOINT PARKWAY GETZVILLE NY NEW YORK 14068 US		CLEAR STREET LLC https://clearstreet.io/contact	4 World Trade Center, 45th Floor 150 Greenwich Street NEW YORK NY NEW YORK 10007
CLEARSTREET IO [e-mail]	55 BROADWAY (SUITE 2102) CORPORATE ACTIONS NEW YORK NEW YORK 10006 US		COMMERCE BANK [e-mail]	922 WALNUT STREET MAIL STOP TBTS-2 KANSAS CITY MO MISSOURI 64106 US
COR CLEARING LLC [e-mail]	9300 UNDERWOOD AVE SUITE 400 OMAHA NE NEBRASKA 68114 US		Credential Securities Inc. [e-mail]	800-1111 WEST GEORGIA STREET VANCOUVER BC BRITISH COLUMBIA V6E 4T6 CA CANADA
CREST INTERNATIONAL NOMINEES LIMITED [e-mail]	33 CANNON STREET LONDON EC4M 5SB GB UNITED KINGDOM		CURVATURE SECURITIES, LLC [e-mail]	39 MAIN STREET CHATHAM NJ NEW JERSEY 07928 US
D.A. DAVIDSON & CO. https://dadavidson.com/Contact-Us	8 3RD STREET NORTH GREAT FALLS MT MONTANA 59401 US		DEPOSITO CENTRAL DE VALORES S.A., DEPOSITO DE VALORES https://www.dcv.cl/en/contact.html	AVENIDA APOQUINDO # 4001 FLOOR 12, C.P. 7550162, SANTIAGO CL CHILE

Broker Name	Broker Address		Broker Name	Broker Address
DESJARDINS SECURITIES INC. [e-mail]	1253 McGill College 10TH FLOOR MONTREAL QUEBEC H3B 2Y5 CA CANADA		DEUTSCHE BANK AG NY/US CUSTODY [e-mail]	1251 Avenue Of The Americas NEW YORK NY NEW YORK 10020
DEUTSCHE BANK SECURITIES INC. [e-mail]	60 WALL STREET 9TH FLOOR NEW YORK NY NEW YORK 10005 US		DRIVEWEALTH, LLC https://www.drivewealth.com/lets-build-together/	15 EXCHANGE PLACE 10TH FLOOR JERSEY CITY NEW JERSEY 07302
E*TRADE CLEARING LLC https://us.etrade.com/contact-us	HARBORSIDE FINANCIAL CENTER 501 PLAZA 11 JERSEY CITY NJ NEW JERSEY 07311 US		EDWARD D. JONES & CO., L.P. 1 [phone]	12555 MANCHESTER ROAD ST. LOUIS MO MISSOURI 63131-3729 US
EDWARD D. JONES & CO., L.P. 1 [phone]	201 PROGRESS PARKWAY MARYLAND HEIGHTS MO MISSOURI 63043 US		FIDELITY CLEARING CANADA ULC/CDS** [e-mail]	483 BAY ST. SOUTH TOWER TORONTO ON ONTARIO M5G2N7 CA CANADA
FIFTH THIRD BANK 1-866-671-5353	5001 KINGSLEY DRIVE MAIL DROP 1MOB28 CINCINNATI OH OHIO 45227 US		FOLIO INVESTMENTS, INC. https://folioinvesting.com/folioinvesting/contact-us/	8180 GREENSBORO DRIVE 8TH FLOOR MCLEAN VA VIRGINIA 22102 US
FUTU CLEARING INC. [e-mail]	12750 Merit Drive SUITE 475 DALLAS TX TEXAS 75251		GMP SECURITIES L.P. 416 943 6696	145 KING STREET WEST, SUITE 300 11TH FLOOR TORONTO ON ONTARIO MJ5 1J8 CA CANADA
GOLDMAN, SACHS & CO. LLC [e-mail].	222 SOUTH MAIN STREET Attn: Mandatory Corporate Actions SALT LAKE CITY UT UTAH 84101 US		HAYWOOD SECURITIES INC./CDS** https://www.haywood.com/who-we-are/locations	200 BURRARD ST WATERFRONT CENTRE SUITE 700 VANCOUVER BC BRITISH COLUMBIA V6C 3L6 CANADA
HILLTOP SECURITIES INC. https://www.hilltopsecurities.com/contact/	1201 ELM ST. 35TH FLOOR DALLAS TX TEXAS 75270 US		HRT FINANCIAL LLC [e-mail]	150 GREENWICH STREET (ATTN: SETTLEMENT) FOUR WORLD TRADE CENTER

Broker Name	Broker Address		Broker Name	Broker Address
				57TH FLOOR NEW YORK NY NEW YORK 10007 US
HSBC BANK USA, NA/HSBC CUSTODY & CLEARING SERVICES FOR STOCK LOAN https://www.us.hsbc.com/customer-service/contact-us/	452 FIFTH AVENUE ATTN: HBUS CCS SETTS NEW YORK NY NEW YORK 10018 US		HSBC BANK USA, NATIONAL ASSOCIATION [e-mail]	452 FIFTH AVENUE ATTN: HBUS CCS SETTS NEW YORK NEW YORK 10018 US
INTERACTIVE BROKERS LLC 877-442-2757	2 PICKWICK PLAZA 2ND FLOOR GREENWICH CT CONNECTICUT 06830 US		J.P. MORGAN CHASE BANK NA/FBO BLACKROCK CTF https://am.jpmorgan.com/us/en/asset-management/adv/contact-us/	1111 POLARIS PARKWAY COLUMBUS OH OHIO 43240
J.P. MORGAN CLEARING CORP. [phone]	FOUR CHASE METROTECH CENTER 3RD FLOOR BROOKLYN NY NEW YORK 11201 US		JANNEY MONTGOMERY SCOTT LLC [e-mail]	1717 ARCH STREET 17TH FLOOR PHILADELPHIA PA PENNSYLVANIA 19103 US
JEFFERIES LLC https://www.jefferies.com/FooterPages/Contact-Us/94	101 HUDSON STREET, 11th Floor NEW JERSEY NJ NEW JERSEY 07302 US		JPMORGAN CHASE BANK, NATIONAL ASSOCIATION [e-mail]	FOUR CHASE METROTECH CENTER 3RD FLOOR BROOKLYN NY NEW YORK 11201 US
JPMORGAN CHASE BANK/EUROCLEAR BANK [e-mail]	FOUR CHASE METROTECH CENTER 3RD FLOOR BROOKLYN NY NEW YORK 11245 US		JPMORGAN CHASE BANK/IA [e-mail]	FOUR CHASE METROTECH CENTER 3RD FLOOR BROOKLYN NY NEW YORK 11201 US
KEYBANK NATIONAL ASSOCIATION https://www.key.com/personal/customer-support/contact-us.html	4900 TIEDEMAN RD BROOKLYN OH OHIO 44144 US		LAURENTIAN BANK SECURITIES INC. https://www.vmbl.ca/portal/web/site_public/contactez-nous	1981 MCGILL COLLEGE AVE. SUITE 100 MONTREAL QUEBEC H3A 3K3 CA CANADA
LPL FINANCIAL LLC [e-mail]	4707 EXECUTIVE DRIVE SAN DIEGO CA CALIFORNIA 92121 US		MANUFACTURERS AND TRADERS TRUST COMPANY https://www3.mtb.com/homepage/explore-the-m-and-t-bank-help-center/man ...	ONE M&T PLAZA TRUST OPS 8TH FLOOR BUFFALO NY NEW YORK 14203 US

Broker Name	Broker Address		Broker Name	Broker Address
MANULIFE SECURITIES INCORPORATED [e-mail]	1235 NORTH SERVICE ROAD WEST OAKVILLE ON ONTARIO L6M 2W2 CA CANADA		MARSCO INVESTMENT CORPORATION [e-mail]	101 EISENHOWER PARKWAY ROSELAND NJ NEW JERSEY 07068 US
MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED https://www.ml.com/contactus/contact-us.html	4804 Deer Lake Drive East FL9-803-04-04- 4th floor JACKSONVILLE FL FLORIDA 32246 US		MIRAE ASSET SECURITIES (USA) INC./STOCK LOAN CONDUIT ACCOUNT 212-407-1000	810 SEVENTH AVE 37TH FLOOR NEW YORK NY NEW YORK 10019
MIRAE ASSET SECURITIES (USA), INC. 212-407-1000	810 SEVENTH AVE 37TH FLOOR NEW YORK NY NEW YORK 10019		MITSUBISHI UFJ TRUST & BANKING CORPORATION, NEW YORK BRANCH https://safe.tr.mufg.jp/cgi-bin/english/index_contact/index_contact_01 ...	280 PARK AVE 39TH FL-WEST BLDG NEW YORK NY NEW YORK 10017
Morgan Stanley [e-mail]	1300 THAMES STREET THAMES STREET WHARF BALTIMORE MD MARYLAND 21231 US		MORGAN STANLEY & CO. LLC [e-mail]	1300 THAMES ST. BALTIMORE MD MARYLAND
MORGAN STANLEY SMITH BARNEY LLC [e-mail]	1 NEW YORK PLAZA 39TH FLOOR NEW YORK NY NEW YORK 10004 US		MURIEL SIEBERT & CO., INC. [e-mail]	77 SUMMER STREET 3RD FLOOR BOSTON MA MASSACHUSETTS 02210 US
NATIONAL FINANCIAL SERVICES LLC http://www.national-financial-services.com/contact_us/	499 WASHINGTON BOULEVARD 5TH FLOOR JERSEY CITY NJ NEW JERSEY 07310 US		NBCN INC. [e-mail]	1010 rue De La Gauchetière Mezzanine 100 MONTREAL QUEBEC H3B 5J2 CA CANADA
NOMURA INTERNATIONAL TRUST COMPANY https://www.nomuraholdings.com/news/contact/	309 WEST 49TH STREET 10TH FLOOR NEW YORK NY NEW YORK 10019 US		ODLUM BROWN LIMITED [e-mail]	250 HOWE STREET SUITE 1100 VANCOUVER BC BRITISH COLUMBIA V6C 3R8 CA CANADA
OPPENHEIMER & CO. INC. [e-mail]	85 BROAD STREET NEW YORK NY NEW YORK 10004 US		PERSHING LLC https://www.pershing.com/contact/	1 PERSHING PLAZA JERSEY CITY NJ NEW JERSEY 07399 US

Broker Name	Broker Address		Broker Name	Broker Address
PHILLIP CAPITAL INC. [e-mail]	141 W. JACKSON BLVD. SUITE 3050 CHICAGO IL ILLINOIS 60604 US		PI FINANCIAL CORP. [e-mail]	666 BURRARD ST SUITE 1900 VANCOUVER BC BRITISH COLUMBIA V6C 3N1 CA CANADA
PNC BANK, NATIONAL ASSOCIATION [e-mail]	4100 W 150TH STREET ASSET MOVEMENT TEAM 3RD FL, LOCATOR B7- YB17-03-03 CLEVELAND OH OHIO 44135 US		PRINCIPAL BANK https://www.principal.com/contact-us	711 HIGH STREET DES MOINES IA IOWA 50392
QUESTRADE INC./CDS** [e-mail]	5650 YONGE ST., Suite 1700 TORONTO ON ONTARIO M2M 4G3 CA CANADA		Raymond James & Associates, Inc. [e-mail]	880 CARILLON PKWY ST. PETERSBURG FL FLORIDA 33733-2749 US
RAYMOND JAMES LTD. [e-mail]	925 WEST GEORGIA STREET SUITE 2200 VANCOUVER BC BRITISH COLUMBIA V6C 3L2 CA CANADA		RBC CAPITAL MARKETS, LLC  [e-mail]	60 SOUTH 6TH ST. MINNEAPOLIS MN MINNESOTA 55402 US
RBC DOMINION SECURITIES INC [e-mail]	21 COMMERCE COURT SOUTH 2ND FLOOR TORONTO ON ONTARIO M5L 1A7 CANADA		RELIANCE TRUST COMPANY https://www.reliancetrustgroup.com/contact	1100 ABERNATHY RD. 500 NORTHPARK SUITE 400 ATLANTA GA GEORGIA 30113 US
RELIANCE TRUST COMPANY [e-mail]	4900 W. BROWN DEER RD MILWAUKEE WI WISCONSIN 53223 US		ROBERT W. BAIRD & CO. INCORPORATED [e-mail]	777 E WISCONSIN AVE 9TH FLOOR MILWAUKEE WI WISCONSIN 53202 US
ROBINHOOD SECURITIES, LLC [e-mail]	500 COLONIAL CENTER PARKWAY SUITE 100 LAKE MARY FL FLORIDA 32746 US		SAFRA SECURITIES LLC https://www.safrasecurities.com/Contact.aspx	546 5TH AVENUE NEW YORK NY NEW YORK 10036 US

Broker Name	Broker Address		Broker Name	Broker Address
SCOTIA CAPITAL (USA) INC. [e-mail]	150 KING STREET W 5TH FLOOR TORONTO ON ONTARIO M5H 1J9 CA CANADA		SEI PRIVATE TRUST COMPANY https://www.seic.com/contact-us	1 FREEDOM VALLEY DRIVE OAKS PA PENNSYLVANIA 19456 US
SEI PRIVATE TRUST COMPANY https://www.seic.com/contact-us	1 FREEDOM VALLEY DRIVE OAKS PA PENNSYLVANIA 19456 US		SG AMERICAS SECURITIES, LLC https://americas.societegenerale.com/en/contact/	480 WASHINGTON BLVD. 20TH FLOOR JERSEY CITY NJ NEW JERSEY 07310 US
SSB - BLACKROCK INSTITUTIONAL TRUST [e-mail]	50 California Street San Francisco CA CALIFORNIA 94163		SSB - TRUST CUSTODY  [e-mail]	30 ADELAIDE ST EAST SUITE 800 TORONTO ON ONTARIO M5C 3G6 CA CANADA
SSB&T CO/CLIENT CUSTODY SERVICES https://www.ssbtexas.com/contact	1776 HERITAGE DRIVE NORTH QUINCY MA MASSACHUSETTS 02171		STATE STREET BANK & TRUST CO [e-mail]	16 WALL STREET 5TH FLOOR NEW YORK NY NEW YORK 10005 US
STATE STREET BANK & TRUST COMPANY / ISHARES EUROPE [e-mail]	1776 HERITAGE DRIVE NORTH QUINCY MA MASSACHUSETTS 02171		STATE STREET BANK & TRUST/STATE STREET TOTALETF [e-mail]	1776 Heritage Drive NORTH QUINCY MA MASSACHUSETTS 02717
STATE STREET BANK AND TRUST COMPANY [e-mail]	30 ADELAIDE ST EAST SUITE 800 TORONTO ON ONTARIO M5C 3G6 CA CANADA		STIFEL, NICOLAUS & COMPANY, INCORPORATED [e-mail]	501 N BROADWAY ST. LOUIS MO MISSOURI 63102 US
STONEX FINANCIAL INC. [e-mail]	2 PERIMETER PARK SOUTH SUITE 100 W BIRMINGHAM AL ALABAMA 35243 US		TD AMERITRADE CLEARING, INC. https://www.tdameritrade.com/why-td-ameritrade/contact-us.html	200 S 108TH AVE OMAHA NE NEBRASKA 68154 US
TD WATERHOUSE CANADA INC ATTN: MANDATORY https://www.tdameritrade.com/why-td-ameritrade/contact-us.html	77 BLOOR STREET WEST 3RD FLOOR TORONTO ON ONTARIO M5S 1M2 CA CANADA		TEXAS TREASURY SAFEKEEPING TRUST COMPANY [e-mail]	208 E 10TH ST AUSTIN TX TEXAS 78701 US

Broker Name	Broker Address		Broker Name	Broker Address
THE BANK OF NEW YORK MELLON [e-mail]	500 GRANT STREET 27TH FLOOR PITTSBURGH PA PENNSYLVANIA 15258 US		THE HUNTINGTON NATIONAL BANK https://www.huntington.com/customer-service/contact-us	7 EASTON OVAL EA4E62 COLUMBUS OH OHIO 43209 US
THE NORTHERN TRUST COMPANY https://www.northerntrust.com/united-states/contact-us-corporate-overv ...	333 South Wabash Ave, 32nd Floor Attn: Trade Securities Processing CHICAGO IL ILLINOIS 60603 US		TRADESTATION SECURITIES, INC [e-mail]	120 RIVERSIDE PLAZA SUITE 1650 CHICAGO IL ILLINOIS 60606 US
U.S. BANCORP INVESTMENTS, INC. [e-mail]	60 LIVINGSTON AVE EP-MN-WN1B ST. PAUL MN MINNESOTA 55107-1419 US		U.S. BANK N.A./ETF https://www.usbank.com/investment-services/contact-us.html	1555 N RIVER CENTER DRIVE MILWAUKEE WI WISCONSIN 53212
U.S. BANK NATIONAL ASSOCIATION https://www.usbank.com/investment-services/contact-us.html	1555 NORTH RIVERCENTER DRIVE, SUITE 302 SUITE 302 MILWAUKEE WI WISCONSIN 53212 US		UBS AG https://www.ubs.com/global/en/our-firm/locations.html	480 WASHINGTON BLVD. 12TH FLOOR JERSEY CITY NJ NEW JERSEY 07310 US
UBS FINANCIAL SERVICES INC. [e-mail]	1000 HARBOR BOULEVARD WEEHAWKEN NJ NEW JERSEY 07086 US		UBS SECURITIES LLC https://www.ubs.com/us/en/wealth-management/contact-us.html	677 WASHINGTON BLVD STAMFORD CT CONNECTICUT 06901 US

Broker Name	Broker Address		Broker Name	Broker Address
UMB BANK, NATIONAL ASSOCIATION [e-mail]	928 GRAND BLVD KANSAS CITY MO MISSOURI 64106 US		VANGUARD MARKETING CORPORATION https://corporate.vanguard.com/content/corporatesite/us/en/corp/contac ...	100 VANGUARD BLVD MALVERN PA PENNSYLVANIA 19355 US
VELOCITY CLEARING, LLC [e-mail]	1301 Route 36 Suite 109 (Attn: Chris Felicetti) HAZLET NEW JERSEY 7730 US		VELOX CLEARING LLC [e-mail]	2400 E. KATELLA AVENUE SUITE 725A ANAHEIM CA CALIFORNIA 92806 US
VIRTU AMERICAS LLC [e-mail]	ONE LIBERTY PLAZA, 165 BROADWAY 5TH FLOOR NEW YORK NY NEW YORK 10006 US		VISION FINANCIAL MARKETS LLC [e-mail]	4 HIGH RIDGE PARK SUITE 100 STAMFORD CT CONNECTICUT 06905 US
WEDBUSH SECURITIES INC [e-mail]	1000 WILSHIRE BLVD 8TH FLOOR LOS ANGELES CA CALIFORNIA 90017 US		WEDBUSH SECURITIES INC. [e-mail]	1000 WILSHIRE BLVD. LOS ANGELES CA CALIFORNIA 90017 US
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About Sorrento Therapeutics, Inc.

Sorrento is a clinical and commercial stage biopharmaceutical company developing new therapies to treat cancer, pain (non-opioid treatments), autoimmune disease and COVID-19. Sorrento's multimodal, multipronged approach to fighting cancer is made possible by its extensive immuno-oncology platforms, including key assets such as Abivertinib, next-generation tyrosine kinase inhibitors (“TKIs”), fully human antibodies (“G-MAB library”), immuno-cellular therapies (“DAR-T”), antibody-drug conjugates (“ADCs”), and oncolytic virus (“Seprehvec”). Sorrento is also developing potential antiviral therapies and vaccines against coronaviruses, including STI-1558, COVI-MSC; and diagnostic test solutions, including COVIMARK.

Sorrento's commitment to life-enhancing therapies for patients is also demonstrated by our effort to advance a TRPV1 agonist, non-opioid pain management small molecule, resiniferatoxin (“RTX”), and SP-102 (10 mg, dexamethasone sodium phosphate viscous gel) (SEMDEXA), a novel, viscous gel formulation of a widely used corticosteroid for epidural injections to treat lumbosacral radicular pain, or sciatica, and to commercialize ZTlido (lidocaine topical system) 1.8% for the treatment of postherpetic neuralgia (PHN). RTX has been cleared for a Phase II trial for intractable pain associated with cancer and a Phase II trial in osteoarthritis patients. Positive final results from the Phase III Pivotal Trial C.L.E.A.R. Program for SEMDEXA, its novel, non-opioid product for the treatment of lumbosacral radicular pain (sciatica), were announced in March 2022. ZTlido was approved by the FDA on February 28, 2018.

For more information visit www.sorrentotherapeutics.com

Media and Investor Relations
Contact: Brian Cooley
Email: [e-mail]

Sorrento and the Sorrento logo are registered trademarks of Sorrento Therapeutics, Inc.
G-MAB, DAR-T, Seprehvec, SOFUSA, COVI-MSC, COVIMARK, Ovydso and Fujovee are trademarks of Sorrento Therapeutics, Inc.
SEMDEXA (SP-102) is a trademark of Semnur Pharmaceuticals, Inc. A proprietary name review by the FDA is planned.
ZTlido is a registered trademark owned by Scilex Pharmaceuticals Inc. All other trademarks are the property of their respective owners.
2023 Sorrento Therapeutics, Inc. All Rights Reserved.