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 ($810.7k this quarter). Holder counts are more reliable. Shares outstanding: 58.7m as of 2026-04-30, 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 ≈ $37.01. Options: 13 managers hold calls ($64.4m notional), 10 hold puts ($37.8m).
Trends to Q1 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 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q2 2024 | 163 | 172 |
| 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 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q2 2025 | $138.0m | $36.2m | 0.26 |
| Q3 2025 | $133.5m | $29.7m | 0.22 |
| Q4 2025 | $149.6m | $30.1m | 0.20 |
| Q1 2026 | $64.4m | $37.8m | 0.59 |
Biggest buyers
| UBS Group AG | Added | +2.5m |
| Fivespan Partners, LP | Added | +2.1m |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | New | +468.5k |
| HAWK RIDGE CAPITAL MANAGEMENT LP | Added | +393.2k |
| JUPITER ASSET MANAGEMENT LTD | Added | +382.1k |
| Engaged Capital LLC | Added | +284.0k |
| FIRST MANHATTAN CO. LLC. | Added | +248.4k |
| Invenomic Capital Management LP | New | +235.0k |
| WESTERLY CAPITAL MANAGEMENT, LLC | Added | +220.0k |
| Balyasny Asset Management L.P. | New | +210.2k |
Biggest sellers
| AMERICAN CENTURY COMPANIES INC | Reduced | -1.2m |
| SCHWARTZ INVESTMENT COUNSEL INC | Reduced | -515.0k |
| TEACHER RETIREMENT SYSTEM OF TEXAS | Sold out | -475.7k |
| FMR LLC | Reduced | -382.4k |
| SCALAR GAUGE MANAGEMENT, LLC | Reduced | -374.6k |
| RIVERBRIDGE PARTNERS LLC | Sold out | -372.8k |
| GENEVA CAPITAL MANAGEMENT LLC | Reduced | -347.8k |
| PSquared Asset Management AG | Sold out | -304.6k |
| Ananym Capital Management, LP | Sold out | -253.5k |
| GOLDMAN SACHS GROUP INC | Reduced | -244.1k |
Biggest calls
| UBS Group AG | Reduced | $36.5m985.8k shares |
| Balyasny Asset Management L.P. | New | $13.7m370.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $3.1m84.0k shares |
| JANE STREET GROUP, LLC | Reduced | $1.9m51.1k shares |
| MILLENNIUM MANAGEMENT LLC | Reduced | $1.9m50.3k shares |
| Centiva Capital, LP | Unchanged | $1.9m50.0k shares |
| Caption Management, LLC | New | $1.9m50.0k shares |
| Walleye Trading LLC | Added | $1.1m30.1k shares |
| Verition Fund Management LLC | Added | $1.1m30.0k shares |
| SUMMIT SECURITIES GROUP LLC | New | $925.0k25.0k shares |
Biggest puts
| Portman Square Capital LLP | Added | $16.3m440.2k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $11.5m312.0k shares |
| JANE STREET GROUP, LLC | Added | $4.1m109.8k shares |
| CITADEL ADVISORS LLC | Added | $1.7m44.8k shares |
| Caption Management, LLC | New | $1.3m35.0k shares |
| GROUP ONE TRADING LLC | Added | $1.1m30.6k shares |
| IMC-Chicago, LLC | Added | $939.8k25.4k shares |
| Walleye Trading LLC | Reduced | $370.0k10.0k shares |
| SUMMIT SECURITIES GROUP LLC | New | $370.0k10.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $185.0k5.0k 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 in Q1 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 |
|---|---|---|---|---|---|
| Q2 2024 | 2 | $593.3k | 2 | $2.6m | $2.6m |
| Q3 2024 | 0 | — | 4 | $6.4m | $6.1m |
| 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 | — | — |
None reported in Q1 2026.
Holders, Q1 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 7.7m $284.2m | Added +34.0k |
| CLEARLAKE CAPITAL GROUP, L.P. 31.06% of their portfolio | 5.7m $211.4m | Unchanged |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.01% of their portfolio | 4.1m $150.3m | First filing |
| UBS Group AG 0.02% of their portfolio | 3.2m $118.5m | Added +2.5m |
| Fivespan Partners, LP 29.55% of their portfolio | 3.0m $111.5m | Added +2.1m |
| FIRST MANHATTAN CO. LLC. 0.27% of their portfolio | 2.7m $99.0m | Added +248.4k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 2.3m $86.9m | First filing |
| ICONIQ Capital, LLC 1.73% of their portfolio | 2.1m $77.2m | Unchanged |
| STATE STREET CORP 0.00% of their portfolio | 2.0m $75.5m | Added +41.1k |
| NEUBERGER BERMAN GROUP LLC 0.06% of their portfolio | 2.0m $74.9m | Reduced -130.9k |
| HAWK RIDGE CAPITAL MANAGEMENT LP 2.54% of their portfolio | 1.9m $70.0m | Added +393.2k |
| Conestoga Capital Advisors, LLC 1.25% of their portfolio | 1.7m $62.4m | Reduced -163.5k |
| WESTWOOD HOLDINGS GROUP INC 0.39% of their portfolio | 1.5m $53.9m | Reduced -63.1k |
| Engaged Capital LLC 16.68% of their portfolio | 1.4m $50.6m | Added +284.0k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.2m $45.7m | Reduced -11.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 1.2m $44.2m | Reduced -45.9k |
| MORGAN STANLEY 0.00% of their portfolio | 1.1m $40.1m | Reduced -191.1k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.1m $39.4m | Added +181.6k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 914.8k $33.8m | Added +77.6k |
| FMR LLC 0.00% of their portfolio | 885.4k $32.8m | Reduced -382.4k |
| Tensile Capital Management LP 3.98% of their portfolio | 750.8k $27.8m | Reduced -40.2k |
| FIRST TRUST ADVISORS LP 0.02% of their portfolio | 616.7k $22.8m | Added +159.6k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 591.5k $21.9m | Reduced -45.9k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 520.9k $19.3m | Added +38.0k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 508.9k $18.8m | Reduced -244.1k |
| GENEVA CAPITAL MANAGEMENT LLC 0.38% of their portfolio | 478.1k $17.7m | Reduced -347.8k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.01% of their portfolio | 468.5k $17.3m | New |
| PALISADE CAPITAL MANAGEMENT, LP 0.54% of their portfolio | 441.2k $16.3m | Added +25.8k |
| Potrero Capital Research LLC 9.56% of their portfolio | 421.1k $15.6m | Added +50.6k |
| JUPITER ASSET MANAGEMENT LTD 0.08% of their portfolio | 390.8k $14.5m | Added +382.1k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 377.4k $14.0m | Reduced -11.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 376.5k $13.9m | Reduced -1.2k |
| PRINCIPAL FINANCIAL GROUP INC 0.01% of their portfolio | 361.8k $13.4m | Added +36.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 350.0k $12.9m | First filing |
| BARCLAYS PLC 0.00% of their portfolio | 332.0k $12.3m | Reduced -140.0k |
| WESTERLY CAPITAL MANAGEMENT, LLC 3.53% of their portfolio | 310.0k $11.5m | Added +220.0k |
| GAGNON SECURITIES LLC 2.53% of their portfolio | 296.4k $11.0m | Added +17.0k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 271.8k $10.1m | Added +9.0k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 259.4k $9.6m | Reduced -19.0k |
| Invesco Ltd. 0.00% of their portfolio | 252.1k $9.3m | Added +25.5k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 249.3k $9.2m | Reduced -63.3k |
| Invenomic Capital Management LP 0.40% of their portfolio | 235.0k $8.7m | New |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.01% of their portfolio | 230.5k $8.5m | Added +210.1k |
| FEDERATED HERMES, INC. 0.01% of their portfolio | 215.2k $8.0m | Added +14.7k |
| Balyasny Asset Management L.P. 0.02% of their portfolio | 210.2k $7.8m | New |
| NEW YORK STATE COMMON RETIREMENT FUND 0.01% of their portfolio | 187.6k $6.9m | Added +19.8k |
| BANK OF MONTREAL /CAN/ 0.00% of their portfolio | 182.0k $6.7m | Reduced -22.5k |
| Public Sector Pension Investment Board 0.02% of their portfolio | 178.7k $6.6m | Added +5.8k |
| SCHWARTZ INVESTMENT COUNSEL INC 0.23% of their portfolio | 175.0k $6.5m | Reduced -515.0k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 173.2k $6.4m | Reduced -36.1k |
| FIFTH THIRD BANCORP 0.01% of their portfolio | 173.0k $6.4m | Added +171.1k |
| ARMISTICE CAPITAL, LLC 0.21% of their portfolio | 168.0k $6.2m | New |
| Tejara Capital Ltd 1.98% of their portfolio | 162.3k $6.0m | New |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 159.2k $5.9m | Added +87.6k |
| Portolan Capital Management, LLC 0.31% of their portfolio | 159.0k $5.9m | New |
| Barton Investment Management 0.74% of their portfolio | 158.6k $5.9m | Reduced -1.6k |
| RENAISSANCE GROUP LLC 0.24% of their portfolio | 156.8k $5.8m | Added +29.4k |
| SCALAR GAUGE MANAGEMENT, LLC 5.47% of their portfolio | 153.1k $5.7m | Reduced -374.6k |
| XTX Topco Ltd 0.09% of their portfolio | 147.2k $5.4m | New |
| NICHOLAS COMPANY, INC. 0.10% of their portfolio | 141.2k $5.2m | Reduced -735 |
| NATIXIS 0.02% of their portfolio | 135.8k $5.0m | New |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 135.0k $5.0m | Added +25.3k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 131.6k $4.9m | Added +1.4k |
| Gagnon Advisors, LLC 3.54% of their portfolio | 130.1k $4.8m | Unchanged |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC 0.05% of their portfolio | 124.1k $4.6m | Reduced -298 |
| Legal & General Group Plc 0.00% of their portfolio | 118.4k $4.4m | Reduced -12.3k |
| Nuveen, LLC 0.00% of their portfolio | 117.2k $4.3m | Added +614 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO 0.01% of their portfolio | 115.5k $4.3m | Added +8.4k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 113.9k $4.2m | Added +951 |
| Select Equity Group, L.P. 0.02% of their portfolio | 112.3k $4.2m | Reduced -162.3k |
| SEI INVESTMENTS CO 0.00% of their portfolio | 105.3k $3.9m | Reduced -110.1k |
| Swiss National Bank 0.00% of their portfolio | 100.0k $3.7m | Reduced -3.7k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 85.7k $3.2m | Reduced -1.2m |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 85.6k $3.2m | New |
| Granite Investment Partners, LLC 0.19% of their portfolio | 83.0k $3.1m | Added +2.6k |
| RAYMOND JAMES FINANCIAL INC 0.00% of their portfolio | 82.0k $3.0m | Reduced -117.8k |
| Bullseye Asset Management LLC 1.48% of their portfolio | 69.0k $2.6m | Unchanged |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 68.5k $2.5m | Added +56.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 67.1k $3.7m | Added +1.6k |
| ENVESTNET ASSET MANAGEMENT INC 0.00% of their portfolio | 66.7k $2.5m | Reduced -9.1k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 66.3k $2.5m | Reduced -178.6k |
| READYSTATE ASSET MANAGEMENT LP 0.14% of their portfolio | 66.1k $2.4m | Reduced -4.2k |
| FRED ALGER MANAGEMENT, LLC 0.01% of their portfolio | 62.8k $2.3m | Reduced -584 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 62.5k $2.3m | Added +11.7k |
| Ewing Morris & Co. Investment Partners Ltd. 1.00% of their portfolio | 60.0k $2.2m | Added +52.5k |
| BESSEMER GROUP INC 0.00% of their portfolio | 58.5k $2.2m | Reduced -297 |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 51.6k $1.9m | Added +4.7k |
| HARBOR CAPITAL ADVISORS, INC. 0.15% of their portfolio | 50.3k $1.9m | New |
| Shay Capital LLC 0.26% of their portfolio | 49.8k $1.8m | New |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 48.3k $1.8m | First filing |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 47.6k $1.8m | Added +4.9k |
| ExodusPoint Capital Management, LP 0.02% of their portfolio | 47.2k $1.7m | New |
| Redmond Asset Management, LLC 0.45% of their portfolio | 44.6k $1.6m | Reduced -2.7k |
| HRT FINANCIAL LP 0.01% of their portfolio | 43.0k $1.6m | Reduced -153.4k |
| HUSSMAN STRATEGIC ADVISORS, INC. 0.34% of their portfolio | 42.0k $1.6m | New |
| Quantinno Capital Management LP 0.00% of their portfolio | 41.6k $1.5m | Added +27.6k |
| WESBANCO BANK INC 0.04% of their portfolio | 41.4k $1.5m | Added +8.4k |
| Amundi 0.00% of their portfolio | 37.2k $1.4m | Added +9.6k |
| NEXPOINT ASSET MANAGEMENT, L.P. 0.09% of their portfolio | 35.5k $1.3m | Unchanged |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 33.4k $1.2m | Reduced -74.4k |