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Lowenthal Richard E

Disclosed activity across 1 company

Tapewire entity
70320
SEC CIK
0001378550

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
ARS Pharmaceuticals, Inc.SPRY · Entity 883Director · PRESIDENT AND CEO · 10% ownerJanuary 02, 2026January 05, 2026

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

ARS Pharmaceuticals, Inc.

Report date January 02, 2026 · Filed January 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Stock option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.49 · Expires 2036-01-01Direct875,000 Reported balance After 2026-01-02 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-01-02 · Grant · Acquired 875,000 · Balance 875,000

F1: The shares subject to the option shall vest in a series of 48 equal monthly installments measured from January 1, 2026.

Stock Option (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $11.49 · Expires 2036-01-01IndirectBy Spouse240,000 Reported balance After 2026-01-02 transaction · row 2 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 2 · 2026-01-02 · Grant · Acquired 240,000 · Balance 240,000

F1: The shares subject to the option shall vest in a series of 48 equal monthly installments measured from January 1, 2026.

Filing footnotes · ownership attribution and instrument terms

F1: The shares subject to the option shall vest in a series of 48 equal monthly installments measured from January 1, 2026.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantEmployee Stock Option (Right to Buy) · Derivative 82,733 Not disclosed Strike: $0.84 Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · derivative · entry 7

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 82,733

Underlying: Common Stock · 82,733 shares

Expires 2029-12-16

F8 · price: Upon the closing of the Merger, each outstanding option to purchase shares of ARS common stock was assumed by the Issuer and converted into an option to purchase the Issuer's common stock.

F10 · price: Received in exchange for a stock option to acquire 70,000 shares of common stock of ARS with an exercise price of $0.99 per share pursuant to the Merger Agreement.

F6 · derivative.exercise_date: 25% of the shares subject to the option vest on the one year anniversary of the vesting commencement date and the balance of the shares vest in a series of thirty-six (36) successive equal monthly installments measured from the first anniversary of the vesting commencement date.

Read SEC document
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantEmployee Stock Option (right to buy) · Derivative 236,380 Not disclosed Strike: $1.44 Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · derivative · entry 6

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 236,380

Underlying: Common Stock · 236,380 shares

Expires 2031-12-13

F8 · price: Upon the closing of the Merger, each outstanding option to purchase shares of ARS common stock was assumed by the Issuer and converted into an option to purchase the Issuer's common stock.

F9 · price: Received in exchange for a stock option to acquire 200,000 shares of common stock of ARS with an exercise price of $1.70 per share pursuant to the Merger Agreement.

F6 · derivative.exercise_date: 25% of the shares subject to the option vest on the one year anniversary of the vesting commencement date and the balance of the shares vest in a series of thirty-six (36) successive equal monthly installments measured from the first anniversary of the vesting commencement date.

Read SEC document
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantEmployee Stock Option (right to buy) · Derivative 236,380 Not disclosed Strike: $0.84 Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · derivative · entry 5

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 236,380

Underlying: Common Stock · 236,380 shares

Expires 2029-12-16

F7 · price: Received in exchange for a stock option to acquire 200,000 shares of common stock of ARS with an exercise price of $0.99 per share pursuant to the Merger Agreement.

F8 · price: Upon the closing of the Merger, each outstanding option to purchase shares of ARS common stock was assumed by the Issuer and converted into an option to purchase the Issuer's common stock.

F6 · derivative.exercise_date: 25% of the shares subject to the option vest on the one year anniversary of the vesting commencement date and the balance of the shares vest in a series of thirty-six (36) successive equal monthly installments measured from the first anniversary of the vesting commencement date.

Read SEC document
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantCommon Stock 1,772,850 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · nonDerivative · entry 4

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Sarina Tanimoto Charitable Remainder Unitrust Dated January 7, 2020

Disclosed balance after: 1,772,850

F2 · price: Received in exchange for 1,500,000 shares of common stock of ARS pursuant to the Merger Agreement.

F5 · ownership.nature: The Reporting Person's spouse is trustee of the trust. The Reporting Person disclaims beneficial ownership of these securities, and the filing of this report is not an admission that the Reporting Person is the beneficial owner of these securities for purposes of Section 16 or for any other purpose.

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November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantCommon Stock 4,326,854 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · nonDerivative · entry 3

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By spouse

Disclosed balance after: 4,326,854

F4 · price: Received in exchange for 3,660,930 shares of common stock of ARS pursuant to the Merger Agreement.

Read SEC document
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantCommon Stock 1,772,850 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · nonDerivative · entry 2

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · By Richard E. Lowenthal Charitable Remainder Unitrust Dated January 7, 2020

Disclosed balance after: 1,772,850

F2 · price: Received in exchange for 1,500,000 shares of common stock of ARS pursuant to the Merger Agreement.

F3 · ownership.nature: The Reporting Person is trustee of the trust.

Read SEC document
November 08, 2022 Filed Nov 10, 2022 23:00 UTC ARS Pharmaceuticals, Inc. SPRY · Entity 883 GrantCommon Stock 5,176,822 Not disclosed Not disclosed
Disclosure

SEC source: 0001209191-22-056442 · doc4.xml · nonDerivative · entry 1

Lowenthal Richard E · CIK 0001378550 · Director · President and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,176,822

F1 · price: Received in exchange for 4,380,084 shares of common stock of ARS Pharmaceuticals, Inc. ("ARS") pursuant to an Agreement and Plan of Merger and Reorganization by and among ARS, the Issuer and Sabre Merger Sub, Inc., a wholly-owned subsidiary of the Issuer ("Merger Sub"), as amended (the "Merger Agreement"). Under the terms of the Merger Agreement, on November 8, 2022, Merger Sub merged with and into ARS (the "Merger"), with ARS surviving the Merger as a wholly-owned subsidiary of the Issuer. Upon the closing of the Merger, each share of ARS common stock was converted into the right to receive 1.1819 shares of the Issuer common stock. Subsequent to the Merger, the name of the Issuer was changed from Silverback Therapeutics, Inc. to ARS Pharmaceuticals, Inc.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.