Who owns BlackLine (BL)
Which tracked institutional funds hold BL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BL company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
Conviction spread
BL’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes BL more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in BL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, we do not read how tracked institutions changed their BL positions: many holders could not be matched across the two filings, most often because the security’s identifier changed and our mapping is incomplete, or because funds are still filing for the newer quarter. Over the same quarter, open-market insider Form 4s were net sales.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| ABSOLUTE INVESTMENT ADVISERS, LLC new | 11,000,000 | $10M | 0.6% | 2026-Q2 |
| BlackRock, Inc. added | 8,240,055 | $231M | 13.7% | 2026-Q2 |
| CLEARLAKE CAPITAL GROUP, L.P. | 5,712,300 | $160M | 9.5% | 2026-Q2 |
| Ewing Morris & Co. Investment Partners Ltd. added | 5,000,000 | $5M | 0.3% | 2026-Q2 |
| STATE OF WISCONSIN INVESTMENT BOARD added | 4,000,000 | $4M | 0.2% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 3,801,905 | $107M | 6.3% | 2026-Q2 |
| Fivespan Partners, LP added | 3,363,943 | $94M | 5.6% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. trimmed | 2,403,510 | $67M | 4.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 2,341,157 | $66M | 3.9% | 2026-Q2 |
| STATE STREET CORP added | 2,159,214 | $61M | 3.6% | 2026-Q2 |
| ICONIQ Capital, LLC | 2,087,081 | $59M | 3.5% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC trimmed | 1,805,786 | $51M | 3.0% | 2026-Q2 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 1,318,230 | $37M | 2.2% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,282,083 | $36M | 2.1% | 2026-Q2 |
| HAWK RIDGE CAPITAL MANAGEMENT LP trimmed | 1,197,966 | $34M | 2.0% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 1,190,095 | $33M | 2.0% | 2026-Q2 |
| MORGAN STANLEY added | 1,135,245 | $32M | 1.9% | 2026-Q2 |
| NORGES BANK added | 1,090,376 | $31M | 1.8% | 2026-Q2 |
| Lynrock Lake LP new | 1,066,666 | $30M | 1.8% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 1,001,741 | $28M | 1.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 980,822 | $28M | 1.6% | 2026-Q2 |
| Engaged Capital LLC trimmed | 827,619 | $23M | 1.4% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 825,688 | $23M | 1.4% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 790,574 | $22M | 1.3% | 2026-Q2 |
| Tensile Capital Management LP trimmed | 694,846 | $20M | 1.2% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 659,449 | $19M | 1.1% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 610,370 | $17M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP added | 608,043 | $17M | 1.0% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 540,649 | $15M | 0.9% | 2026-Q2 |
| FMR LLC trimmed | 528,117 | $15M | 0.9% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 502,789 | $14M | 0.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 415,507 | $12M | 0.7% | 2026-Q2 |
| GENEVA CAPITAL MANAGEMENT LLC trimmed | 389,591 | $11M | 0.6% | 2026-Q2 |
| JUPITER ASSET MANAGEMENT LTD trimmed | 389,394 | $11M | 0.6% | 2026-Q2 |
| UBS Group AG trimmed | 383,387 | $11M | 0.6% | 2026-Q2 |
| GAGNON SECURITIES LLC added | 375,769 | $11M | 0.6% | 2026-Q2 |
| Bank of New York Mellon Corp trimmed | 372,393 | $10M | 0.6% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 369,512 | $10M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 368,654 | $10M | 0.6% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 362,762 | $10M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 356,102 | $10M | 0.6% | 2026-Q2 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP trimmed | 320,085 | $9M | 0.5% | 2026-Q2 |
| ARMISTICE CAPITAL, LLC added | 278,000 | $8M | 0.5% | 2026-Q2 |
| Invesco Ltd. added | 259,162 | $7M | 0.4% | 2026-Q2 |
| WESTERLY CAPITAL MANAGEMENT, LLC trimmed | 250,000 | $7M | 0.4% | 2026-Q2 |
| BARCLAYS PLC trimmed | 242,685 | $7M | 0.4% | 2026-Q2 |
| Tejara Capital Ltd added | 239,237 | $7M | 0.4% | 2026-Q2 |
| Potrero Capital Research LLC trimmed | 238,590 | $7M | 0.4% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 230,780 | $6M | 0.4% | 2026-Q2 |
| Walleye Trading LLC added | 219,630 | $6M | 0.4% | 2026-Q2 |
| PALISADE CAPITAL MANAGEMENT, LP trimmed | 210,544 | $6M | 0.4% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 178,303 | $5M | 0.3% | 2026-Q2 |
| SCHWARTZ INVESTMENT COUNSEL INC | 175,000 | $5M | 0.3% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 174,550 | $5M | 0.3% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 169,239 | $5M | 0.3% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 160,425 | $5M | 0.3% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 155,301 | $4M | 0.3% | 2026-Q2 |
| BANK OF MONTREAL /CAN/ trimmed | 148,797 | $4M | 0.2% | 2026-Q2 |
| NICHOLAS COMPANY, INC. added | 141,225 | $4M | 0.2% | 2026-Q2 |
| Gagnon Advisors, LLC | 130,050 | $4M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 128,319 | $4M | 0.2% | 2026-Q2 |
| Barton Investment Management trimmed | 125,977 | $4M | 0.2% | 2026-Q2 |
| Fund 1 Investments, LLC new | 125,000 | $4M | 0.2% | 2026-Q2 |
| CIBC Bancorp USA Inc. added | 123,522 | $3M | 0.2% | 2026-Q2 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 118,183 | $3M | 0.2% | 2026-Q2 |
| XTX Topco Ltd trimmed | 118,000 | $3M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 116,286 | $3M | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 108,432 | $3M | 0.2% | 2026-Q2 |
| Legal & General Group Plc trimmed | 108,169 | $3M | 0.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 106,716 | $3M | 0.2% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 102,015 | $3M | 0.2% | 2026-Q2 |
| Holocene Advisors, LP added | 95,933 | $3M | 0.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 90,600 | $3M | 0.2% | 2026-Q2 |
| Granite Investment Partners, LLC added | 84,170 | $2M | 0.1% | 2026-Q2 |
| Swiss National Bank trimmed | 83,700 | $2M | 0.1% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 65,814 | $2M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 64,837 | $2M | 0.1% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 64,691 | $2M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 60,966 | $2M | 0.1% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 58,863 | $2M | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO trimmed | 56,161 | $2M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 55,643 | $2M | 0.1% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 54,806 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP added | 53,687 | $2M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 52,931 | $1M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC added | 52,055 | $1M | 0.1% | 2026-Q2 |
| Y-Intercept (Hong Kong) Ltd added | 51,928 | $1M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 51,177 | $1M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 50,163 | $1M | 0.1% | 2026-Q2 |
| LAVELLE CAPITAL LP added | 49,181 | $1M | 0.1% | 2026-Q2 |
| Redmond Asset Management, LLC trimmed | 42,204 | $1M | 0.1% | 2026-Q2 |
| MARSHALL WACE, LLP added | 40,723 | $1M | 0.1% | 2026-Q2 |
| Campbell & CO Investment Adviser LLC added | 39,383 | $1M | 0.1% | 2026-Q2 |
| ALLSTATE CORP new | 35,945 | $1M | 0.1% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 34,617 | $972K | 0.1% | 2026-Q2 |
| Brevan Howard Capital Management LP added | 33,798 | $949K | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 32,689 | $918K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 28,346 | $796K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC added | 27,926 | $784K | 0.0% | 2026-Q2 |
| Louisiana State Employees Retirement System | 22,200 | $821K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.