How many institutions held CTKB - Cytek Biosciences, Inc. - Common Stock, par value $0.001 per share in Q2 2023?

100 institutional investors reported CTKB - Cytek Biosciences, Inc. - Common Stock, par value $0.001 per share for Q2 2023. Use the holders table for investor-level position and value details.

Cytek Biosciences, Inc. - Common Stock, par value $0.001 per share (CTKB)

Q: What does CUSIP 23285D109 represent in this 13F holders report?

CUSIP 23285D109 is the security identifier for CTKB - Cytek Biosciences, Inc. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

CUSIP: 23285D109

Q2 2023 13F Holders as of 30 Jun 2023

Security type / class: Equity / Common Stock, par value $0.001 per share
Total 13F shares: 77,036,054
Total 13F value: $657,934,234
Share change: +8,527,394
Put/Call ratio: 5.4%
SEC-reported price per share: $8.54
Number of holders: 100
Value change: +$69,958,551
Number of buys: 73
Number of sells: 43
Shares outstanding: 129,063,934

Security key

23285D109

Report period

Q2 2023

Institutions

100

Top holders

CTKB full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2023 Previous quarter: Q1 2023 Cytek Biosciences, Inc. SEC filings Cytek Biosciences, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 23285D109

Newer quarter: Q3 2023 Previous quarter: Q1 2023

Recent filing periods:

Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024

Ownership snapshot

Top reported holders of CTKB - Cytek Biosciences, Inc. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

RA CAPITAL MANAGEMENT, L.P.

Disclosed value leader

RA CAPITAL MANAGEMENT, L.P.

Comparable rows

15/15

Latest evidence

31 Mar 2023

3/4/5 13F Lead comparable stake: 10% Showing 1-6 of 15 holder rows.

Quick read

RA CAPITAL MANAGEMENT, L.P. leads the comparable SEC ownership view at 10%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens RA CAPITAL MANAGEMENT, L.P.'s linked filing trail.

Comparable ownership Top 5

RA CAPITAL MANAGEMENT, L.P. 10%

BROWN CAPITAL MANAGEMENT LLC 6.7%

BlackRock Finance, Inc. 6.4%

VANGUARD GROUP INC 6.1%

HHLR ADVISORS, LTD. 6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
RA CAPITAL MANAGEMENT, L.P.	3/4/5 13F Director, 10%+ Owner · Company 3/4/5 13F	10% from 13F	$127,120,013 13,381,054 shares	—	14 Mar 2022
BROWN CAPITAL MANAGEMENT LLC	13F Company 13F	6.7%	$79,047,077 8,601,423 shares	—	31 Mar 2023
BlackRock Finance, Inc.	13F Company 13F	6.4%	$76,159,799 8,287,247 shares	—	31 Mar 2023
VANGUARD GROUP INC	13F Company 13F	6.1%	$72,467,635 7,885,488 shares	—	31 Mar 2023
HHLR ADVISORS, LTD.	13F Company 13F	6%	$70,795,294 7,703,514 shares	—	31 Mar 2023
STATE STREET CORP	13F Company 13F	1.6%	$18,924,710 2,059,272 shares	—	31 Mar 2023

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2023

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

100

77,036,054

Rows available

100

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q2 2023 vs Q1 2023 Across Filers

Q1 2023 holders

100

Q2 2023 holders

100

Holder diff

Investor	Q1 2023 Shares	Q2 2023 Shares	Share Diff	Share Chg %	Q1 2023 value	Q2 2023 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend