BlackLine

BL · NASDAQ

$31.23+$1.12 (+3.72%)TodayMarket closed · Oct 20, 5:21 PM ET

Prev close $30.11

Who owns BL

Largest institutional holders, from their latest 13F filings

The 10 largest institutions hold 60.6% of BL’s shares.

BlackRock Institutional Trust Company, N.A.12.7%
Clearlake Capital Partners, LLC9.7%
Tucker (Therese)7.5%
Vanguard Portfolio Management, LLC6.5%
Next 6 largest institutions24.1%
All other shareholders39.4%

Top institutional holders of BL
Holder	Shares	% of shares	Change, last filing	Filed
BlackRock Institutional Trust Company, N.A.	7.47M	12.73%	+353.76K	Jun 30, 2026
Clearlake Capital Partners, LLC	5.71M	9.74%	+0	Jun 30, 2026
Tucker (Therese)	4.40M	7.50%	+26.56K	Aug 24, 2026
Vanguard Portfolio Management, LLC	3.80M	6.48%	−260.95K	Jun 30, 2026
Fivespan Partners, LP	3.36M	5.73%	+350.00K	Jun 30, 2026
First Manhattan Co. LLC	2.40M	4.10%	−273.48K	Jun 30, 2026
Vanguard Capital Management, LLC	2.34M	3.99%	−8.00K	Jun 30, 2026
State Street Investment Management (US)	2.16M	3.68%	+118.90K	Jun 30, 2026
ICONIQ Capital, LLC	2.09M	3.56%	+0	Jun 30, 2026
Neuberger Berman, LLC	1.81M	3.08%	−218.60K	Jun 30, 2026

Largest mutual fund holders

Top mutual fund holders of BL
Holder	Shares	% of shares	Change, last filing	Filed
iShares Core S&P Small-Cap ETF	3.00M	5.12%	+2.77K	Aug 31, 2026
Vanguard Total Stock Market Index Fund	1.69M	2.89%	+9.10K	Jul 31, 2026
iShares Russell 2000 ETF	1.30M	2.21%	−5.66K	Jul 31, 2026
Vanguard Small-Cap Index Fund	1.21M	2.06%	+2.37K	Jul 31, 2026
Neuberger Genesis Fund	1.09M	1.86%	−133.72K	Jun 30, 2026

Insider trades

Form 4 filings by officers, directors and large holders

Over the last 6 months, insiders sold $2.44M (6 trades) of BL on the open market, with no buys.

Latest BL insider transactions
Insider	Date	Type	Shares	Price	Value
Villanova Patrick	Sep 2, 2026	Option exercise	750	—	—
Villanova Patrick	Sep 2, 2026	Option exercise	750	$14.00	$10.50K
Stalick Michelle D	Aug 27, 2026	Sale	780	$33.65	$26.25K
Tucker Therese	Aug 24, 2026	Option exercise	26.56K	—	—
Tucker Therese	Aug 24, 2026	Option exercise	70.00K	—	—
Tucker Therese	Aug 24, 2026	Sale	70.00K	$31.96	$2.24M
Tucker Therese	Aug 24, 2026	Option exercise	26.56K	$14.00	$371.84K
Tucker Therese	Aug 24, 2026	Option exercise	70.00K	$14.00	$980.00K
Villanova Patrick	Aug 20, 2026	Tax withholding	1.20K	$31.92	$38.30K
Villanova Patrick	Aug 20, 2026	Tax withholding	300	$31.92	$9.58K

Congressional trades

Disclosed by members of Congress over the last 12 months

BL trades disclosed by members of Congress
Member	Type	Amount	Traded	Filed
Lisa McClainHouse	Sale	$1K–$15K	Oct 31, 2025	Nov 21, 2025
Lisa McClainHouse	Sale	$1K–$15K	Oct 30, 2025	Nov 21, 2025

Short interest

Settled Sep 30, 2026

Shares short: 5.51M
Days to cover: 5.77
% of shares outstanding: 9.40%
Average daily volume: 955.23K
Change since last report: −4.3%

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