---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-161806"
form_type: "8-K12B"
ticker: "QDEL"
cik: "0001906324"
company_name: "QuidelOrtho Corp"
filed_at: "2022-05-27T23:59:59+00:00"
generated_at: "2026-06-25T06:28:17.781066+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.9
calibrated_materiality_score: 0.9
confidence: "high"
source: SEC EDGAR
---

# Quidel and Ortho complete merger, forming QuidelOrtho; $2.75B term loan and $750M revolver closed

## Summary
- Ortho shareholders received 0.1055 QuidelOrtho shares + $7.14 cash per share; Quidel shareholders got 1 QuidelOrtho share per share.
- New $2.75B term loan and $750M revolver with Bank of America, maturing May 2027, used to fund cash consideration and repay Ortho debt.
- 12-member board appointed, with Douglas Bryant as Chairman & CEO; Carlyle holds >12% and appoints two directors.
- Quidel shares delisted; QuidelOrtho now trades on Nasdaq under symbol QDEL.
- Ernst & Young appointed as independent auditor for fiscal 2022, replacing prior auditors.

## SEC filing metadata
- accession: 0001193125-22-161806
- form_type: 8-K12B
- ticker: QDEL
- cik: 0001906324
- company_name: QuidelOrtho Corp
- filed_at: 2022-05-27T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.9
- calibrated_materiality_score: 0.9
- confidence: high
- sec_items: 1.01, 2.01, 2.03, 3.01, 3.03, 5.03, 4.01, 5.01, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/d323352d8k12b.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-161806
- JSON: https://secwatch.observer/filing/0001193125-22-161806.json
- Plain text: https://secwatch.observer/filing/0001193125-22-161806.txt

## Key facts
- Executive change
  Joseph D. Wilkins Jr. was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Stephen H. Wise was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Joseph M. Busky resigned as Sole Director at QuidelOrtho Corp.
  - Action: resigned
  - Role: Sole Director
  source text: Immediately following the appointment of the aforementioned members of the Company’s board of directors, Joseph M. Busky resigned as the sole director of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Douglas C. Bryant was appointed as Chairman and Chief Executive Officer at QuidelOrtho Corp.
  - Action: appointed
  - Role: Chairman and Chief Executive Officer
  source text: Douglas C. Bryant Chairman and Chief Executive Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Mary Lake Polan was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Michelle A. Hodges was appointed as Senior Vice President, General Counsel at QuidelOrtho Corp.
  - Action: appointed
  - Role: Senior Vice President, General Counsel
  source text: Michelle A. Hodges Senior Vice President, General Counsel
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Kenneth J. Widder was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Robert R. Schmidt was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Werner Kroll was appointed as Senior Vice President, Research and Development at QuidelOrtho Corp.
  - Action: appointed
  - Role: Senior Vice President, Research and Development
  source text: Werner Kroll, Ph.D. Senior Vice President, Research and Development
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Christopher M. Smith was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Kenneth F. Buechler was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Douglas C. Bryant was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Ann D. Rhoads was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Joseph M. Busky was appointed as Chief Financial Officer at QuidelOrtho Corp.
  - Action: appointed
  - Role: Chief Financial Officer
  source text: Joseph M. Busky Chief Financial Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Evelyn Dilsaver was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Matthew W. Strobeck was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Edward L. Michael was appointed as Member of the Board of Directors at QuidelOrtho Corp.
  - Action: appointed
  - Role: Member of the Board of Directors
  source text: On the Closing Date, the following individuals were appointed as members of the Company’s board of directors: Douglas C. Bryant, Kenneth F. Buechler, Edward L. Michael, Mary Lake Polan, Ann D. Rhoads, Matthew W. Strobeck, Kenneth J. Widder, Joseph D. Wilkins Jr., Christopher M. Smith, Stephen H. Wise, Robert R. Schmidt and Evelyn Dilsaver, each of whom, other than Mr. Bryant and Mr. Smith, qualifies as an “independent director” under the applicable rules of Nasdaq.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Robert J. Bujarski was appointed as President and Chief Operating Officer at QuidelOrtho Corp.
  - Action: appointed
  - Role: President and Chief Operating Officer
  source text: Robert J. Bujarski President and Chief Operating Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm
- Executive change
  Michael S. Iskra was appointed as Chief Commercial Officer at QuidelOrtho Corp.
  - Action: appointed
  - Role: Chief Commercial Officer
  source text: Michael S. Iskra Chief Commercial Officer
  evidence_url: https://www.sec.gov/Archives/edgar/data/1906324/000119312522161806/0001193125-22-161806-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.