What does CUSIP 09239B109 represent in this 13F holders report?

CUSIP 09239B109 is the security identifier for BL - BLACKLINE, INC. - Common Stock used to aggregate holder disclosures.

How many institutions held BL - BLACKLINE, INC. - Common Stock in Q1 2026?

61 institutional investors reported BL - BLACKLINE, INC. - Common Stock for Q1 2026. Use the holders table for investor-level position and value details.

BLACKLINE, INC. - Common Stock (BL)

CUSIP: 09239B109

Q1 2026 13F Holders as of 31 Mar 2026

Type / Class: Equity / Common Stock
Shares outstanding: 59,681,308
Total 13F shares: 2,829,922
Share change: -1,109,317
Total reported value: $104,705,076
Put/Call ratio: 1761%
Price per share: $37.00
Number of holders: 61
Value change: -$60,469,722
Number of buys: 32
Number of sells: 38

Quarterly Holders Quick Answers

What is CUSIP 09239B109?
CUSIP 09239B109 identifies BL - BLACKLINE, INC. - Common Stock in SEC institutional holdings data.

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Previous quarter: Q4 2025

Recent filing periods for CUSIP 09239B109:

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

Top shareholders of BL - BLACKLINE, INC. - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
BlackRock, Inc.	13D/G 13F	Company	13%	7,849,789	$444,455,053	$0	30 Jun 2025	13D/G 13F
VANGUARD GROUP INC	13F	Company	11%	6,795,523	$375,724,467	—	31 Dec 2025	13F
CLEARLAKE CAPITAL GROUP, L.P.	13F	Company	9.6%	5,712,300	$315,833,067	—	31 Dec 2025	13F
Therese Tucker	3/4/5	Founder, Director	7.5%	4,487,578	$206,620,819	—	20 Feb 2026	3/4/5
VANGUARD PORTFOLIO MANAGEMENT LLC	13D/G	Vanguard Portfolio Management	6.9%	4,106,074	$151,924,738	$0	31 Mar 2026	13D/G
FMR LLC	13D/G 13F	Company	4.3%	2,688,553	$144,240,856	-$64,474,263	30 Jun 2025	13D/G 13F
FIRST MANHATTAN CO. LLC.	13F	Company	4.1%	2,428,604	$134,277,515	—	31 Dec 2025	13F
Fivespan Partners, LP	13D/G 13F	Company	5.1%	3,013,943	$132,161,401	$0	11 Mar 2026	13D/G 13F
Neuberger Berman Group LLC	13F	Company	3.6%	2,155,321	$119,167,698	—	31 Dec 2025	13F
ICONIQ Capital, LLC	13F	Company	3.5%	2,087,081	$115,394,708	—	31 Dec 2025	13F
STATE STREET CORP	13F	Company	3.3%	1,999,194	$110,535,436	—	31 Dec 2025	13F
Conestoga Capital Advisors, LLC	13F	Company	3.1%	1,848,997	$102,231,044	—	31 Dec 2025	13F
WESTWOOD HOLDINGS GROUP INC	13F	Company	2.5%	1,519,799	$84,029,687	—	31 Dec 2025	13F
HAWK RIDGE CAPITAL MANAGEMENT LP	13F	Company	2.5%	1,497,631	$82,804,018	—	31 Dec 2025	13F
NORGES BANK	13F	Company	2.4%	1,461,152	$80,787,094	—	31 Dec 2025	13F
MORGAN STANLEY	13F	Company	2.1%	1,274,776	$70,482,449	—	31 Dec 2025	13F
AMERICAN CENTURY COMPANIES INC	13F	Company	2.1%	1,272,708	$70,368,162	—	31 Dec 2025	13F
JPMORGAN CHASE & CO	13F	Company	2.1%	1,256,211	$69,455,933	—	31 Dec 2025	13F
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	2.1%	1,245,237	$68,860,240	—	31 Dec 2025	13F
Engaged Capital LLC	13F	Company	1.8%	1,083,619	$59,913,295	—	31 Dec 2025	13F
DIMENSIONAL FUND ADVISORS LP	13F	Company	1.5%	882,078	$48,776,401	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	1.4%	837,217	$46,289,710	—	31 Dec 2025	13F
GENEVA CAPITAL MANAGEMENT LLC	13F	Company	1.4%	825,862	$45,661,892	—	31 Dec 2025	13F
Tensile Capital Management LP	13F	Company	1.3%	790,945	$43,731,000	—	31 Dec 2025	13F
GOLDMAN SACHS GROUP INC	13F	Company	1.3%	753,078	$41,637,683	—	31 Dec 2025	13F
SCHWARTZ INVESTMENT COUNSEL INC	13F	Company	1.2%	690,000	$38,150,100	—	31 Dec 2025	13F
UBS Group AG	13F	Company	1.1%	665,422	$36,791,183	—	31 Dec 2025	13F
NORTHERN TRUST CORP	13F	Company	1.1%	637,392	$35,241,403	—	31 Dec 2025	13F
SCALAR GAUGE MANAGEMENT, LLC	13F	Company	0.88%	527,789	$29,181,454	—	31 Dec 2025	13F
CHARLES SCHWAB INVESTMENT MANAGEMENT INC	13F	Company	0.81%	482,801	$26,694,067	—	31 Dec 2025	13F
TEACHER RETIREMENT SYSTEM OF TEXAS	13F	Company	0.8%	475,665	$26,299,517	—	31 Dec 2025	13F
BARCLAYS PLC	13F	Company	0.79%	472,010	$26,097,432	—	31 Dec 2025	13F
FIRST TRUST ADVISORS LP	13F	Company	0.77%	457,155	$25,276,099	—	31 Dec 2025	13F
PALISADE CAPITAL MANAGEMENT, LP	13F	Company	0.7%	415,444	$22,969,899	—	31 Dec 2025	13F
Bank of New York Mellon Corp	13F	Company	0.65%	389,053	$21,510,766	—	31 Dec 2025	13F
Mark Partin	3/4/5	CHIEF FINANCIAL OFFICER	— mixed-class rows	399,858 mixed-class rows	$21,268,981	—	20 Feb 2025	3/4/5
BNP PARIBAS FINANCIAL MARKETS	13F	Company	0.63%	377,687	$20,882,314	—	31 Dec 2025	13F
RIVERBRIDGE PARTNERS LLC	13F	Company	0.62%	372,814	$20,612,909	—	31 Dec 2025	13F
Potrero Capital Research LLC	13F	Company	0.62%	370,557	$20,488,097	—	31 Dec 2025	13F
Marc Huffman	3/4/5	Chief Executive Officer, Director	— class O/S missing	306,809	$18,586,489	—	21 Feb 2023	3/4/5
PRINCIPAL FINANCIAL GROUP INC	13F	Company	0.55%	325,762	$18,011,381	—	31 Dec 2025	13F
AMERIPRISE FINANCIAL INC	13F	Company	0.52%	312,597	$17,283,489	—	31 Dec 2025	13F
PSquared Asset Management AG	13F	Company	0.51%	304,576	$16,840,007	—	31 Dec 2025	13F
GAGNON SECURITIES LLC	13F	Company	0.47%	279,398	$15,447,915	—	31 Dec 2025	13F
ROYAL BANK OF CANADA	13F	Company	0.47%	278,388	$15,392,000	—	31 Dec 2025	13F
Select Equity Group, L.P.	13F	Company	0.46%	274,540	$15,179,317	—	31 Dec 2025	13F
PRICE T ROWE ASSOCIATES INC /MD/	13F	Company	0.44%	262,811	$14,532,000	—	31 Dec 2025	13F
Ananym Capital Management, LP	13F	Company	0.42%	253,482	$14,015,020	—	31 Dec 2025	13F
JANE STREET GROUP, LLC	13F	Company	0.41%	244,846	$13,537,535	—	31 Dec 2025	13F
Topline Capital Management, LLC	13F	Company	0.4%	237,173	$13,113,295	—	31 Dec 2025	13F

Institutional Holders of BLACKLINE, INC. - Common Stock (BL) as of Q1 2026

As of 31 Mar 2026, BLACKLINE, INC. - Common Stock (BL) was held by 61 institutional shareholders that filed Form 13F with the SEC. Together, they reported ownership of 2,829,922 shares. The largest 10 holders included Conestoga Capital Advisors, LLC, GAGNON SECURITIES LLC, Barton Investment Management, Gagnon Advisors, LLC, Nuveen, LLC, Granite Investment Partners, LLC, HARBOR CAPITAL ADVISORS, INC., WESBANCO BANK INC, Chicago Capital, LLC, and State of Alaska, Department of Revenue. This page lists 61 institutional shareholders reporting positions in this security for the Q1 2026 filing period.

Investor	Option	Weight %	Change %	Value $	* Price	Shares	Share Change	Activity	Report Period

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

299

Q1 2026 holders

Holder diff

-238

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 Value $	Q1 2026 Value $	Value Diff $	Value Chg %

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

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.