secwatch / observer
8-K filed June 2, 2026, 4:15 PM ET ticker CTKB CIK 0001831915
leadership confidence high sentiment neutral materiality 0.50

Cytek Biosciences SVP Global Sales Philippe Busque resigns effective June 5

Cytek Biosciences, Inc.

Machine-readable event card

schema_version
secwatch.filing_event.v1
accession
0001193125-26-253538
form_type
8-K
ticker
CTKB
cik
0001831915
company_name
Cytek Biosciences, Inc.
filed_at
2026-06-02T20:15:52+00:00
discovered_at
2026-06-02T20:17:06.756147+00:00
generated_at
2026-06-02T20:17:52.634735+00:00
sec_items
["5.02"]
event_type
leadership
sentiment
neutral
materiality_score
0.5
calibrated_materiality_score
0.5
confidence
high
secwatch_canonical_url
https://secwatch.observer/filing/0001193125-26-253538
json_url
https://secwatch.observer/filing/0001193125-26-253538.json
markdown_url
https://secwatch.observer/filing/0001193125-26-253538.md
text_url
https://secwatch.observer/filing/0001193125-26-253538.txt
edgar_index_url
https://www.sec.gov/Archives/edgar/data/1831915/000119312526253538/0001193125-26-253538-index.htm
edgar_primary_document_url
https://www.sec.gov/Archives/edgar/data/1831915/000119312526253538/d161903d8k.htm
generated_by_model
deepseek-v4-flash:cloud@v2
review_status
machine_generated
human_reviewed
false
corrected
false
correction_note
null
correction_timestamp
null
superseded_by
null

Executive movements

Machine-extracted from this filing. Every card cites the SEC source. See all recent executive movements.

Departed

Philippe Busque

Senior Vice President, Global Sales and Services
CTKB · Cytek Biosciences, Inc.
Effective
2026-06-05
Filed
June 2, 2026, 4:15 PM ET
On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Source-grounded claims

fb1c5261b7

Philippe Busque resigned as Senior Vice President, Global Sales and Services at Cytek Biosciences, Inc..

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

SEC 8-K Item 5.02 confidence 0.95 SEC evidence

Comparable filings

NUE

Nucor EVP David Sumoski to retire June 13, 2026; receives $308,851/month for 24 months

NUCOR CORP June 2, 2026, 5:11 PM ET leadership Items 5.02, 9.01

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On May 28, 2026, the Company and Mr. Sumoski entered into a Retirement, Separation, Waiver and Release Agreement (the “Retirement Agreement”) in connection with Mr. Sumoski’s retirement from employment with the Company, effective June 13, 2026.

Filing page SEC filing

BSTT

Zaneta Koplewicz resigns as Co-President and Director of Blackstone Real Estate Income Trust

Blackstone Real Estate Income Trust, Inc. June 2, 2026, 5:08 PM ET leadership Items 5.02

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On June 2, 2026, Zaneta Koplewicz resigned from Blackstone Real Estate Income Trust, Inc. (the “Company”) as Co-President, Head of Shareholder Relations and as a member of the Company’s Board of Directors (the “Board”), effective June 24, 2026.

Filing page SEC filing

VWAV

VisionWave appoints Einav Eliraz as CFO of subsidiary VisionWave IL; grants 500K share options

VisionWave Holdings, Inc. June 2, 2026, 5:01 PM ET leadership Items 5.02, 9.01

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On June 1, 2026, VisionWave IL Ltd. (“VisionWave IL”), a wholly-owned subsidiary of VisionWave Holdings, Inc. (the “Company”), entered into an Employment Agreement with Mr. Einav Eliraz pursuant to which Mr. Eliraz was appointed Chief Financial Officer (“CFO”) of VisionWave IL, effective June 1, 2026.

Filing page SEC filing

DIN

Dine Brands appoints Lawrence Y. Kim as Chief Commercial Officer effective June 1, 2026

Dine Brands Global, Inc. June 2, 2026, 5:00 PM ET leadership Items 5.02, 9.01

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

appointed Lawrence Y. Kim, President, IHOP Business Unit, to the additional position of Chief Commercial Officer of the Corporation, effective as of June 1, 2026.

Filing page SEC filing

CUE

Cue Biopharma appoints new directors, chief legal officer, and accounting officer; board size reduced

Cue Biopharma, Inc. June 2, 2026, 4:45 PM ET leadership Items 5.02, 8.01

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On May 29, 2026, Cue Biopharma, Inc. (the “Company”) and each of Jill Broadfoot, Peter Kiener, Frank Morich and Patrick Verheyen mutually agreed that Messrs. Kiener, Morich and Verheyen and Ms. Broadfoot would resign as members of the Board of Directors of the Company (the “Board”) and as members of the committees of the Board on which they serve, effective immediately.

Filing page SEC filing

CYCU

Cycurion appoints Ana Garcia as CFO; Alvin McCoy III transitions to strategic advisor

Cycurion, Inc. June 2, 2026, 4:43 PM ET leadership Items 5.02, 7.01, 9.01

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

the Company also announced the appointment of Ana Garcia as its new Chief Financial Officer, effective June 1, 2026.

Filing page SEC filing

YUM

YUM! Brands COO/CPO Tracy Skeans to transition Nov 1, 2026, retire March 1, 2028

YUM BRANDS INC June 2, 2026, 4:33 PM ET leadership Items 5.02

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On June 2, 2026, YUM! Brands, Inc. (the “Company”) announced that Tracy Skeans will transition from her roles as Chief Operating Officer and Chief People & Culture Officer effective on November 1, 2026 (the “Transition Date”).

Filing page SEC filing

Cornerstone Building Brands, Inc.

Cornerstone Building Brands names Richard Dirkson as Corporate Controller; CAO departs

Cornerstone Building Brands, Inc. June 2, 2026, 10:32 AM ET leadership Items 5.02, 5.07

same fact type: executive_change same SEC item: 5.02 same event type: leadership similar materiality

This filing

On May 27, 2026, Philippe Busque, Ph.D. submitted his resignation from his position as the Senior Vice President, Global Sales and Services of Cytek Biosciences, Inc. (the “Company”), effective as of June 5, 2026, to pursue another career opportunity.

Comparable filing

On May 27, 2026, the Company appointed Richard Dirkson as Senior Vice President, Corporate Controller (principal accounting officer) of the Company, effective May 28, 2026.

Filing page SEC filing

Source: SEC EDGAR
accession 0001193125-26-253538

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.