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Ron Squarer
Chairman at
ADC THERAPEUTICS SA
Net worth: 4 M $ as of 2026-06-29
Profile
Ron Squarer is Chairman at ADC Therapeutics SA since 2020.
Mr. Squarer is Director at Deciphera Pharmaceuticals LLC since 2019.
Mr. Squarer is Independent Director at Travere Therapeutics, Inc. since 2017.
Formerly, Mr. Squarer was Chief Executive Officer & Director at Array BioPharma, Inc. from 2012 to 2019.
Mr. Squarer was Chairman at Deciphera Pharmaceuticals, Inc. from 2023 to 2024.
Mr. Squarer was Independent Director at Nuvalent, Inc. from 2025 to 2026.
Mr. Squarer was Principal at Smithkline Beecham Plc.
Mr. Squarer was Chief Commercial Officer & Senior Vice President at Hospira, Inc. from 2010 to 2011.
Mr. Squarer was Senior Vice President-Business Development at Mayne Pharma Ltd. from 2006 to 2007.
Mr. Squarer completed undergraduate studies at the University of California, Berkeley.
Mr. Squarer earned an MBA from Kellogg School of Management.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-05-18 | 39,375 ( 0.04% ) | 2 M $ | 2026-06-29 | |
ADC THERAPEUTICS LTD 1.26% | 2026-06-02 | 1,607,627 ( 1.26% ) | 2 M $ | 2026-06-29 |
Ron Squarer active positions
| Companies | Position | Start |
|---|---|---|
| TRAVERE THERAPEUTICS, INC. | Director/Board Member | 2017-04-11 |
| ADC THERAPEUTICS SA | Chairman | 2020-02-29 |
Deciphera Pharmaceuticals LLC
 Deciphera Pharmaceuticals LLC BiotechnologyHealth Technology Discovers and develops pharmaceutical preparations | Director/Board Member | 2019-11-30 |
Former positions of Ron Squarer
| Companies | Position | End |
|---|---|---|
| NUVALENT, INC. | Director/Board Member | 2026-07-14 |
| DECIPHERA PHARMACEUTICALS, INC. | Chairman | 2024-06-10 |
| ARRAY TECHNOLOGIES, INC. | Chief Executive Officer | 2019-07-31 |
| HOSPIRA, INC. | Corporate Officer/Principal | 2012-01-31 |
Mayne Pharma Ltd.
 Mayne Pharma Ltd. Pharmaceuticals: OtherHealth Technology Manufactures pharmaceutical products | Corporate Officer/Principal | 2006-12-31 |
Training of Ron Squarer
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
63
1st degree connections
11
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 11 |
|---|---|
Smithkline Beecham Plc
 Smithkline Beecham Plc Pharmaceuticals: OtherHealth Technology Develops and manufactures pharmaceutical products | Health Technology |
Array BioPharma, Inc.
 Array BioPharma, Inc. Pharmaceuticals: MajorHealth Technology Develops & commercializes biopharmaceutical drugs | Health Technology |
Hospira, Inc.
 Hospira, Inc. Pharmaceuticals: MajorHealth Technology Provides drugs, IV sets and clinical integration & software, infusion pumps and implementation services | Health Technology |
University of California, Berkeley
 University of California, Berkeley Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Mayne Pharma Ltd.
Mayne Pharma Ltd. Pharmaceuticals: OtherHealth Technology Manufactures pharmaceutical products | Health Technology |
Deciphera Pharmaceuticals LLC
Deciphera Pharmaceuticals LLC BiotechnologyHealth Technology Discovers and develops pharmaceutical preparations | Health Technology |
ADC Therapeutics SA
 ADC Therapeutics SA Pharmaceuticals: MajorHealth Technology Develops proprietary antibody drug conjugates for the treatment of both solid and hematological cancers | Health Technology |
Travere Therapeutics, Inc.
 Travere Therapeutics, Inc. Pharmaceuticals: MajorHealth Technology Operates as a biopharmaceutical company that engages in developing and delivering life-changing therapies to people living with rare kidney, liver & metabolic diseases | Health Technology |
Kellogg School of Management
 Kellogg School of Management Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Deciphera Pharmaceuticals, Inc.
 Deciphera Pharmaceuticals, Inc. BiotechnologyHealth Technology Develops novel drug candidates to improve the lives of cancer patients | Health Technology |
Nuvalent, Inc.
 Nuvalent, Inc. Pharmaceuticals: MajorHealth Technology Engages in discovery, development and commercialization of targeted therapies for patients with cancer | Health Technology |
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