Blackline, Inc.: which funds bought and sold

Institutions that bought and sold Blackline shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 111 institutions that filed 13F reports for both quarters added to or opened positions in Blackline, and 158 cut or closed them. Together they sold a net 4.4M shares, −6.9% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 559K shares (−3.9%); index fund managers were net buyers of 559K shares (+2.9%). 36 opened a new position and 68 sold out entirely.

Bought, Q2 2026 111 institutions, 36 of them new holders Sold, Q2 2026 158 institutions, 68 of them sold out

Net change, all compared −4.4M shares (−6.9%)

Net change, active managers −559K shares (−3.9%), 16 bought, 25 sold

Buyers versus sellers

institutions compared, 307

111 bought 38 158 sold

Active managers and hedge funds 16 bought · 25 sold · −559K

Index fund managers 7 bought · 4 sold · +559K

Other institutions 88 bought · 129 sold · −4.4M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Lynrock Lake LP Hedge fund	+1.1M New position	1.1M	$29.9M
Qube Research & Technologies Ltd Hedge fund	+659K New position	659K	$18.5M
Blackrock, Inc. Index funds	+559K +7.3%	8.2M	$231M
Price T Rowe Associates Inc Active manager	+554K +203.7%	826K	$23.2M
Goldman Sachs Group Inc	+493K +96.8%	1.0M	$28.1M
Fivespan Partners, LP	+350K +11.6%	3.4M	$94.4M
Citadel Advisors LLC Hedge fund	+344K +215.8%	503K	$14.1M
Susquehanna International Group, LLP	+310K +134.5%	541K	$15.2M
Jane Street Group, LLC	+303K +457.5%	370K	$10.4M
Group One Trading LLC	+231K New position	231K	$6.5M
Walleye Trading LLC	+220K New position	220K	$6.2M
First Trust Advisors LP	+174K +28.2%	791K	$22.2M
Pacer Advisors, Inc.	+172K +6967.2%	174K	$4.9M
Exoduspoint Capital Management, LP Hedge fund	+127K +269.6%	175K	$4.9M
Fund 1 Investments, LLC	+125K New position	125K	$3.5M
CIBC Bancorp Usa Inc.	+124K New position	124K	$3.5M
State Street Corp Index funds	+119K +5.8%	2.2M	$60.6M
Armistice Capital, LLC Hedge fund	+110K +65.5%	278K	$7.8M
Tudor Investment Corp Et Al Hedge fund	+108K New position	108K	$3M
Charles Schwab Investment Management Inc Index funds	+90K +17.2%	610K	$17.1M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Lynrock Lake LP Hedge fund	+1.1M New position	1.1M	$29.9M
Qube Research & Technologies Ltd Hedge fund	+659K New position	659K	$18.5M
Price T Rowe Associates Inc Active manager	+554K +203.7%	826K	$23.2M
Citadel Advisors LLC Hedge fund	+344K +215.8%	503K	$14.1M
Exoduspoint Capital Management, LP Hedge fund	+127K +269.6%	175K	$4.9M
Armistice Capital, LLC Hedge fund	+110K +65.5%	278K	$7.8M
Tudor Investment Corp Et Al Hedge fund	+108K New position	108K	$3M
Victory Capital Management Inc Active manager	+87K +441.4%	107K	$3M
Capital Fund Management S.A. Hedge fund	+66K New position	66K	$1.8M
Holocene Advisors, LP Hedge fund	+63K +191.8%	96K	$2.7M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
UBS Group AG	−2.8M −88.0%	383K	$10.8M
Conestoga Capital Advisors, LLC	−1.7M Sold out	0	—
Hawk Ridge Capital Management LP Hedge fund	−693K −36.6%	1.2M	$33.6M
Dimensional Fund Advisors LP	−648K −60.9%	416K	$11.7M
Engaged Capital LLC Hedge fund	−540K −39.5%	828K	$23.2M
FMR LLC Active manager	−357K −40.4%	528K	$14.8M
First Manhattan Co. Llc. Active manager	−273K −10.2%	2.4M	$67.5M
Vanguard Portfolio Management LLC Index funds	−261K −6.4%	3.8M	$107M
Invenomic Capital Management LP Hedge fund	−235K Sold out	0	—
Palisade Capital Management, LP Active manager	−231K −52.3%	211K	$5.9M
Neuberger Berman Group LLC Active manager	−219K −10.8%	1.8M	$50.7M
Federated Hermes, Inc. Active manager	−215K −100.0%	79	$2,218
Balyasny Asset Management L.P. Hedge fund	−210K Sold out	0	—
Potrero Capital Research LLC	−183K −43.3%	239K	$6.7M
Millennium Management LLC Hedge fund	−173K Sold out	0	—
Fifth Third Bancorp	−162K −93.7%	11K	$305,892
Portolan Capital Management, LLC	−159K Sold out	0	—
Renaissance Group LLC	−157K Sold out	0	—
Scalar Gauge Management, LLC	−153K Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−148K −31.7%	320K	$9M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Hawk Ridge Capital Management LP Hedge fund	−693K −36.6%	1.2M	$33.6M
Engaged Capital LLC Hedge fund	−540K −39.5%	828K	$23.2M
FMR LLC Active manager	−357K −40.4%	528K	$14.8M
First Manhattan Co. Llc. Active manager	−273K −10.2%	2.4M	$67.5M
Invenomic Capital Management LP Hedge fund	−235K Sold out	0	—
Palisade Capital Management, LP Active manager	−231K −52.3%	211K	$5.9M
Neuberger Berman Group LLC Active manager	−219K −10.8%	1.8M	$50.7M
Federated Hermes, Inc. Active manager	−215K −100.0%	79	$2,218
Balyasny Asset Management L.P. Hedge fund	−210K Sold out	0	—
Millennium Management LLC Hedge fund	−173K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Lynrock Lake LPHedge fund	1.1M	$29.9M
Qube Research & Technologies LtdHedge fund	659K	$18.5M
Group One Trading LLC	231K	$6.5M
Walleye Trading LLC	220K	$6.2M
Fund 1 Investments, LLC	125K	$3.5M
CIBC Bancorp Usa Inc.	124K	$3.5M
Tudor Investment Corp Et AlHedge fund	108K	$3M
Capital Fund Management S.A.Hedge fund	66K	$1.8M
Squarepoint Ops LLCHedge fund	55K	$1.5M
Y-Intercept (Hong Kong) Ltd	52K	$1.5M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Conestoga Capital Advisors, LLC	1.7M	$62.4M
Invenomic Capital Management LPHedge fund	235K	$8.7M
Balyasny Asset Management L.P.Hedge fund	210K	$7.8M
Millennium Management LLCHedge fund	173K	$6.4M
Portolan Capital Management, LLC	159K	$5.9M
Renaissance Group LLC	157K	$5.8M
Scalar Gauge Management, LLC	153K	$5.7M
Natixis	136K	$5M
Select Equity Group, L.P.Active manager	112K	$4.2M
Two Sigma Investments, LPHedge fund	86K	$3.2M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 244
Ten largest holders: 54.8%
Index fund managers: 32.2%
Active managers and hedge funds: 22.5%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	16	25	5	11	−559K	−3.9%
Index fund managers	7	4	0	0	+559K	+2.9%
Other institutions	88	129	31	57	−4.4M	−14.3%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Blackline.

Only managers that filed a holdings report for both quarters are compared (307 here). 11 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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