Arkolith/Insider Trading/CTKB/Form 4

Yan Ming

CHIEF TECHNOLOGY OFFICER, DirectorCytek Biosciences, Inc. (CTKB) · full profile →Form 4 · filed May 20, 2026
No Open-Market Flow
Open-Market Buys
$0
Open-Market Sells
$0
Net Open-Market Flow
$0
Transactions
12
8 non-derivative · 4 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
May 18, 2026Option exercise(M)5K——4.9M
May 18, 2026Tax withholding(F)1K$3.55$4K4.9M
May 18, 2026Option exercise(M)4K——4.9M
May 18, 2026Tax withholding(F)919$3.55$3K4.9M
May 18, 2026Option exercise(M)4K——4.9M
May 18, 2026Tax withholding(F)1K$3.55$4K4.9M
May 18, 2026Option exercise(M)9K——4.9M
May 18, 2026Tax withholding(F)2K$3.55$8K4.9M

Derivative Transactions (Table II)

DateActionSharesPriceValueOwned After
May 18, 2026Option exercise(M)5K—$025K
May 18, 2026Option exercise(M)4K—$041K
May 18, 2026Option exercise(M)4K—$070K
May 18, 2026Option exercise(M)9K—$0218K

Transaction Codes

M
Option exercise / conversion
F
Shares withheld for taxes

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001874041-26-000005) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML