BLACKLINE INC BL
COM · Common Stock · CUSIP 09239B109 · ISIN US09239B1098
American software company
- SectorTechnology
- IndustryServices-Prepackaged Software
- HeadquartersWoodland Hills, CA
- Founded2001
- Websiteblackline.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($111.2k this quarter). Holder counts are more reliable. Shares outstanding: 58.1m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $28.08. Options: 8 managers hold calls ($35.3m notional), 8 hold puts ($27.4m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 295 |
| Q4 2022 | 300 |
| Q1 2023 | 313 |
| Q2 2023 | 294 |
| Q3 2023 | 299 |
| Q4 2023 | 316 |
| Q1 2024 | 305 |
| Q2 2024 | 313 |
| Q3 2024 | 292 |
| Q4 2024 | 307 |
| Q1 2025 | 280 |
| Q2 2025 | 298 |
| Q3 2025 | 273 |
| Q4 2025 | 308 |
| Q1 2026 | 279 |
| Q2 2026 | 246 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 128 | 172 |
| Q4 2024 | 157 | 130 |
| Q1 2025 | 136 | 168 |
| Q2 2025 | 146 | 145 |
| Q3 2025 | 125 | 152 |
| Q4 2025 | 125 | 152 |
| Q1 2026 | 134 | 174 |
| Q2 2026 | 113 | 160 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $133.5m | $29.7m | 0.22 |
| Q4 2025 | $149.6m | $30.1m | 0.20 |
| Q1 2026 | $64.4m | $37.8m | 0.59 |
| Q2 2026 | $35.3m | $27.4m | 0.77 |
Biggest buyers
| Lynrock Lake LP | New | +1.1m |
| Qube Research & Technologies Ltd | New | +659.4k |
| BlackRock, Inc. | Added | +559.1k |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +553.8k |
| GOLDMAN SACHS GROUP INC | Added | +492.8k |
| Fivespan Partners, LP | Added | +350.0k |
| CITADEL ADVISORS LLC | Added | +343.6k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | +310.1k |
| JANE STREET GROUP, LLC | Added | +303.2k |
| GROUP ONE TRADING LLC | New | +230.8k |
Biggest sellers
| UBS Group AG | Reduced | -2.8m |
| Conestoga Capital Advisors, LLC | Sold out | -1.7m |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Reduced | -692.9k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -648.1k |
| Engaged Capital LLC | Reduced | -540.0k |
| FMR LLC | Reduced | -357.3k |
| FIRST MANHATTAN CO. LLC. | Reduced | -273.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | -261.0k |
| Invenomic Capital Management LP | Sold out | -235.0k |
| PALISADE CAPITAL MANAGEMENT, LP | Reduced | -230.7k |
Biggest calls
| UBS Group AG | Unchanged | $27.7m985.8k shares |
| CITADEL ADVISORS LLC | Added | $1.6m57.3k shares |
| JANE STREET GROUP, LLC | Added | $1.6m55.9k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $1.5m54.2k shares |
| Walleye Trading LLC | Added | $1.1m40.0k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $858.9k30.6k shares |
| SIMPLEX TRADING, LLC | Added | $589.5k21.0k shares |
| GROUP ONE TRADING LLC | Added | $404.2k14.4k shares |
Biggest puts
| Portman Square Capital LLP | Reduced | $12.3m439.8k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $8.0m284.5k shares |
| JANE STREET GROUP, LLC | Added | $3.4m122.3k shares |
| GROUP ONE TRADING LLC | Added | $1.3m47.8k shares |
| CITADEL ADVISORS LLC | Added | $1.3m47.7k shares |
| SIMPLEX TRADING, LLC | Added | $471.6k16.8k shares |
| Walleye Trading LLC | Added | $426.7k15.2k shares |
| WOLVERINE ASSET MANAGEMENT LLC | New | $8.4k300 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-07-17 | 12.6% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 6.9% |
Fivespan Partners, LP
13D · may seek influence
new · filed 2026-03-12
Stated purposeThe Reporting Persons acquired the securities of the Issuer reported herein based on their belief that the securities were undervalued and represented an attractive investment opportunity. The Reporting Persons from time to time expect to enter into discussions with directors and officers of the Issuer in connection with the Reporting Persons' investment in the Issuer. Such discussions may include, without limitation, a range of issues, including those relating to the business of the Issuer, management, board composition (which may include whether it makes sense for a Fivespan employee to be on the Issuer's board of directors), investor communications, management, operations, business, assets, capital allocation, dividend policy, financial condition, mergers and acquisitions strategy, ove… Full filing |
5.1% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 3 | $7.5m | $7.3m |
| Q1 2025 | 0 | — | 1 | $451.4k | $451.4k |
| Q2 2025 | 0 | — | 3 | $417.7k | $351.9k |
| Q3 2025 | 1 | $486.0k | 2 | $186.2k | $150.3k |
| Q4 2025 | 0 | — | 1 | $50.0k | $50.0k |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 3 | $173.0k | $49.5k |
| Q3 2026 | 0 | — | 2 | $2.3m | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-08-27 | Stalick Michelle D Chief Accounting Officer | Sold | $26.2k780 shares |
| 2026-08-24 | Tucker Therese Director | Sold | $2.2m70.0k shares |
| 2026-06-05 | Yamamoto Mika Director | Sold | $85.4k3.0k shares |
| 2026-06-01 | Stalick Michelle D Chief Accounting Officer | Sold | $24.1k780 shares |
| 2026-05-21 | HUGHES GREGORY Director | Sold plan | $49.5k1.6k shares |
| 2026-05-18 | Stalick Michelle D Chief Accounting Officer | Sold | $13.9k459 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 8.2m $231.3m | Added +559.1k |
| CLEARLAKE CAPITAL GROUP, L.P. 30.33% of their portfolio | 5.7m $160.3m | Unchanged |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 3.8m $106.7m | Reduced -261.0k |
| Fivespan Partners, LP 22.25% of their portfolio | 3.4m $94.4m | Added +350.0k |
| FIRST MANHATTAN CO. LLC. 0.17% of their portfolio | 2.4m $67.5m | Reduced -273.5k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.3m $65.7m | Reduced -8.0k |
| STATE STREET CORP 0.00% of their portfolio | 2.2m $60.6m | Added +118.9k |
| ICONIQ Capital, LLC 1.69% of their portfolio | 2.1m $58.6m | Unchanged |
| NEUBERGER BERMAN GROUP LLC 0.03% of their portfolio | 1.8m $50.7m | Reduced -218.6k |
| WESTWOOD HOLDINGS GROUP INC 0.28% of their portfolio | 1.3m $37.0m | Reduced -138.4k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.3m $36.0m | Added +47.9k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 1.08% of their portfolio | 1.2m $33.6m | Reduced -692.9k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.2m $33.4m | Reduced -20.2k |
| MORGAN STANLEY 0.00% of their portfolio | 1.1m $31.9m | Added +51.6k |
| NORGES BANK 0.00% of their portfolio | 1.1m $30.6m | Not comparable |
| Lynrock Lake LP 1.89% of their portfolio | 1.1m $29.9m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 1.0m $28.1m | Added +492.8k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 980.8k $27.5m | Added +66.0k |
| Engaged Capital LLC 7.10% of their portfolio | 827.6k $23.2m | Reduced -540.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 825.7k $23.2m | Added +553.8k |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 790.6k $22.2m | Added +173.9k |
| Tensile Capital Management LP 2.69% of their portfolio | 694.8k $19.5m | Reduced -55.9k |
| Qube Research & Technologies Ltd 0.02% of their portfolio | 659.4k $18.5m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 610.4k $17.1m | Added +89.5k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 608.0k $17.1m | Added +16.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 540.6k $15.2m | Added +310.1k |
| FMR LLC 0.00% of their portfolio | 528.1k $14.8m | Reduced -357.3k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 502.8k $14.1m | Added +343.6k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 415.5k $11.7m | Reduced -648.1k |
| GENEVA CAPITAL MANAGEMENT LLC 0.25% of their portfolio | 389.6k $10.9m | Reduced -88.5k |
| JUPITER ASSET MANAGEMENT LTD 0.05% of their portfolio | 389.4k $10.9m | Reduced -1.4k |
| UBS Group AG 0.00% of their portfolio | 383.4k $10.8m | Reduced -2.8m |
| GAGNON SECURITIES LLC 2.03% of their portfolio | 375.8k $10.5m | Added +79.3k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 372.4k $10.5m | Reduced -5.0k |
| JANE STREET GROUP, LLC 0.01% of their portfolio | 369.5k $10.4m | Added +303.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 368.7k $10.3m | Added +6.9k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 362.8k $10.2m | Reduced -13.7k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 356.1k $10.0m | Added +6.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 320.1k $9.0m | Reduced -148.4k |
| ARMISTICE CAPITAL, LLC 0.22% of their portfolio | 278.0k $7.8m | Added +110.0k |
| Invesco Ltd. 0.00% of their portfolio | 259.2k $7.3m | Added +7.0k |
| WESTERLY CAPITAL MANAGEMENT, LLC 1.72% of their portfolio | 250.0k $7.0m | Reduced -60.0k |
| BARCLAYS PLC 0.00% of their portfolio | 242.7k $6.8m | Reduced -89.3k |
| Tejara Capital Ltd 2.76% of their portfolio | 239.2k $6.7m | Added +76.9k |
| Potrero Capital Research LLC 4.10% of their portfolio | 238.6k $6.7m | Reduced -182.6k |
| GROUP ONE TRADING LLC 0.19% of their portfolio | 230.8k $6.5m | New |
| Walleye Trading LLC 0.09% of their portfolio | 219.6k $6.2m | New |
| PALISADE CAPITAL MANAGEMENT, LP 0.26% of their portfolio | 210.5k $5.9m | Reduced -230.7k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 178.3k $5.0m | Reduced -9.3k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.16% of their portfolio | 175.0k $4.9m | Unchanged |
| ExodusPoint Capital Management, LP 0.05% of their portfolio | 174.6k $4.9m | Added +127.3k |
| Pacer Advisors, Inc. 0.01% of their portfolio | 174.4k $4.9m | Added +172.0k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 169.2k $4.8m | Reduced -9.5k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 160.4k $4.5m | Reduced -98.9k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 155.3k $4.4m | Reduced -94.0k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 148.8k $4.2m | Reduced -33.2k |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 144.6k $4.1m | Added +9.6k |
| NICHOLAS COMPANY, INC. 0.07% of their portfolio | 141.2k $4.0m | Added +70 |
| Gagnon Advisors, LLC 2.32% of their portfolio | 130.1k $3.7m | Unchanged |
| Nuveen, LLC 0.00% of their portfolio | 128.3k $3.6m | Added +11.1k |
| Barton Investment Management 0.48% of their portfolio | 126.0k $3.5m | Reduced -32.7k |
| Fund 1 Investments, LLC 0.62% of their portfolio | 125.0k $3.5m | New |
| CIBC Bancorp USA Inc. 0.00% of their portfolio | 123.5k $3.5m | New |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.03% of their portfolio | 118.2k $3.3m | Reduced -5.9k |
| XTX Topco Ltd 0.04% of their portfolio | 118.0k $3.3m | Reduced -29.2k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 116.3k $3.3m | Reduced -15.3k |
| TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio | 108.4k $3.0m | New |
| Legal & General Group Plc 0.00% of their portfolio | 108.2k $3.0m | Reduced -10.2k |
| VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio | 106.7k $3.0m | Added +87.0k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 102.0k $2.9m | Reduced -11.9k |
| Holocene Advisors, LP 0.01% of their portfolio | 95.9k $2.7m | Added +63.1k |
| Ewing Morris & Co. Investment Partners Ltd. 1.39% of their portfolio | 95.0k $2.7m | Added +35.0k |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 90.6k $2.5m | Added +22.1k |
| Granite Investment Partners, LLC 0.12% of their portfolio | 84.2k $2.4m | Added +1.2k |
| Swiss National Bank 0.00% of their portfolio | 83.7k $2.3m | Reduced -16.3k |
| CAPITAL FUND MANAGEMENT S.A. 0.01% of their portfolio | 65.8k $1.8m | New |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 64.8k $2.4m | Reduced -2.2k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 64.7k $1.8m | Reduced -40.6k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 61.0k $1.7m | Reduced -1.6k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 58.9k $1.7m | Added +42.3k |
| BESSEMER GROUP INC 0.00% of their portfolio | 58.6k $1.6m | Added +65 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.00% of their portfolio | 56.2k $1.6m | Reduced -59.4k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 55.6k $1.6m | Added +8.0k |
| Squarepoint Ops LLC 0.00% of their portfolio | 54.8k $1.5m | New |
| Quantinno Capital Management LP 0.00% of their portfolio | 53.7k $1.5m | Added +12.0k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 52.9k $1.5m | Added +4.6k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 52.1k $1.5m | Added +459 |
| Y-Intercept (Hong Kong) Ltd 0.03% of their portfolio | 51.9k $1.5m | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 51.2k $1.4m | Added +27.5k |
| CITIGROUP INC 0.00% of their portfolio | 50.2k $1.4m | Added +21.0k |
| HARBOR CAPITAL ADVISORS, INC. 0.10% of their portfolio | 50.1k $1.4m | Reduced -237 |
| LAVELLE CAPITAL LP 0.70% of their portfolio | 49.2k $1.4m | Added +33.1k |
| Redmond Asset Management, LLC 0.30% of their portfolio | 42.2k $1.2m | Reduced -2.4k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 40.7k $1.1m | Added +30.4k |
| Campbell & CO Investment Adviser LLC 0.06% of their portfolio | 39.4k $1.1m | New |
| ALLSTATE CORP 0.01% of their portfolio | 35.9k $1.0m | New |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 34.6k $971.7k | Added +12.2k |
| Brevan Howard Capital Management LP 0.01% of their portfolio | 33.8k $948.7k | Added +24.2k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 32.7k $917.6k | Reduced -34.0k |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 32.4k $908.0k | Reduced -997 |