Latest Period
Q1 2026
Security Snapshot
BLACKLINE, INC. - Common Stock (BL) Institutional Ownership
CUSIP: 09239B109
13F Institutional Holders and Ownership History from Q1 2016 to Q1 2026
Institutions Reporting
274
Shares (Excl. Options)
63,978,243
Price
$37.00
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock
- Symbol
- BL on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 63,978,243
- Total 13F value
- $2,367,803,981
- Portfolio coverage rank
- 0.01%
- Share change
- -66,756
- Value change
- -$89,618,518
- Number of holders
- 274
- Shares outstanding
- 59,681,308
- SEC-reported price per share
- $28.90
- Insider filing price
- $28.90
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- BL - BLACKLINE, INC. - Common Stock is tracked under CUSIP 09239B109.
- 274 institutions reported positions in Q1 2026.
- 4 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 302 to 274 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $3,548,119,327 to $2,367,803,981.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 274 institutions filings for Q1 2026.
Security key
09239B109
Latest holder period
Q1 2026
13F holders
274
13D/G owners
4
CIK / CUSIP context first
Open Q1 2026 holders
BL full holder history
BLACKLINE, INC. SEC filings
BLACKLINE, INC. company facts
BLACKLINE, INC. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 09239B109:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
4
Security
BL
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | $444,455,053 | 7,849,789 | BlackRock, Inc. | 30 Jun 2025 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.9% | $151,924,738 | 4,106,074 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| Fivespan Partners, LP | 5.1% | $132,161,401 | 3,013,943 | Fivespan Partners, LP | 11 Mar 2026 | |||
| FMR LLC | 4.3% | -30% | $144,240,856 | -$64,474,263 | 2,688,553 | -31% | FMR LLC | 30 Jun 2025 |
As of 31 Mar 2026, 274 institutional investors reported holding 63,978,243 shares of BLACKLINE, INC. - Common Stock (BL). This represents 107% of the company’s total 59,681,308 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
85%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 13% | 7,680,962 | +0.44% | 0% | $284,195,577 |
| CLEARLAKE CAPITAL GROUP, L.P. | 9.6% | 5,712,300 | 0% | 31% | $211,355,100 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 6.8% | 4,062,856 | 0% | 0.01% | $150,325,672 |
| UBS Group AG | 5.4% | 3,203,298 | +381% | 0.02% | $118,522,026 |
| Fivespan Partners, LP | 5.1% | 3,013,943 | +225% | 30% | $111,515,891 |
| FIRST MANHATTAN CO. LLC. | 4.5% | 2,676,987 | +10% | 0.27% | $99,048,519 |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.9% | 2,349,160 | 0% | 0% | $86,918,920 |
| ICONIQ Capital, LLC | 3.5% | 2,087,081 | 0% | 1.7% | $77,221,997 |
| STATE STREET CORP | 3.4% | 2,040,318 | +2.1% | 0% | $75,491,766 |
| NEUBERGER BERMAN GROUP LLC | 3.4% | 2,024,391 | -6.1% | 0.06% | $74,902,467 |
| HAWK RIDGE CAPITAL MANAGEMENT LP | 3.2% | 1,890,823 | +26% | 2.5% | $69,960,451 |
| Conestoga Capital Advisors, LLC | 2.8% | 1,685,484 | -8.8% | 1.2% | $62,362,908 |
| WESTWOOD HOLDINGS GROUP INC | 2.4% | 1,456,649 | -4.2% | 0.39% | $53,896,013 |
| Engaged Capital LLC | 2.3% | 1,367,619 | +26% | 17% | $50,601,903 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1% | 1,234,191 | -0.89% | 0% | $45,673,737 |
| JPMORGAN CHASE & CO | 2% | 1,210,288 | -3.7% | 0% | $44,163,427 |
| MORGAN STANLEY | 1.8% | 1,083,687 | -15% | 0% | $40,096,448 |
| DIMENSIONAL FUND ADVISORS LP | 1.8% | 1,063,655 | +21% | 0.01% | $39,354,410 |
| BANK OF AMERICA CORP /DE/ | 1.5% | 914,813 | +9.3% | 0% | $33,848,069 |
| FMR LLC | 1.5% | 885,381 | -30% | 0% | $32,759,105 |
| Tensile Capital Management LP | 1.3% | 750,786 | -5.1% | 4% | $27,779,082 |
| FIRST TRUST ADVISORS LP | 1% | 616,716 | +35% | 0.02% | $22,818,492 |
| NORTHERN TRUST CORP | 0.99% | 591,514 | -7.2% | 0% | $21,886,018 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.87% | 520,850 | +7.9% | 0% | $19,271,450 |
| GOLDMAN SACHS GROUP INC | 0.85% | 508,929 | -32% | 0% | $18,830,373 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
40
Latest
Q1 2026
Rows shown
1-25 of 40
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 63,978,243 | $2,367,803,981 | -$89,618,518 | $37.00 | 274 |
| 2025 Q4 | 64,169,615 | $3,548,119,327 | +$77,795,952 | $55.29 | 302 |
| 2025 Q3 | 61,879,283 | $3,285,751,510 | -$197,097,007 | $53.10 | 269 |
| 2025 Q2 | 65,396,594 | $3,702,799,134 | +$41,023,113 | $56.62 | 289 |
| 2025 Q1 | 64,747,306 | $3,135,070,587 | +$22,489,022 | $48.42 | 274 |
| 2024 Q4 | 63,925,987 | $3,885,395,724 | +$125,225,163 | $60.76 | 300 |
| 2024 Q3 | 60,428,214 | $3,332,284,862 | -$133,652,802 | $55.14 | 289 |
| 2024 Q2 | 62,733,307 | $3,039,431,581 | +$5,310,712 | $48.45 | 311 |
| 2024 Q1 | 62,305,769 | $4,023,331,497 | +$342,199,269 | $64.58 | 300 |
| 2023 Q4 | 57,097,449 | $3,565,115,054 | -$61,943,905 | $62.44 | 315 |
| 2023 Q3 | 58,214,471 | $3,228,965,561 | +$19,358,483 | $55.47 | 296 |
| 2023 Q2 | 57,961,761 | $3,119,590,082 | -$174,475,398 | $53.82 | 289 |
| 2023 Q1 | 60,217,011 | $4,043,292,237 | +$45,901,194 | $67.15 | 311 |
| 2022 Q4 | 59,866,001 | $4,027,696,666 | -$30,053,822 | $67.27 | 296 |
| 2022 Q3 | 60,185,402 | $3,603,941,106 | -$150,638,299 | $59.90 | 287 |
| 2022 Q2 | 61,701,996 | $4,110,761,434 | +$121,952,785 | $66.60 | 295 |
| 2022 Q1 | 59,772,902 | $4,378,709,707 | -$79,763,190 | $73.22 | 313 |
| 2021 Q4 | 60,436,901 | $6,255,827,623 | +$246,172,643 | $103.54 | 354 |
| 2021 Q3 | 57,849,818 | $6,830,494,078 | +$99,784,508 | $118.06 | 328 |
| 2021 Q2 | 57,076,343 | $6,351,992,792 | +$232,643,370 | $111.27 | 331 |
| 2021 Q1 | 55,009,179 | $5,964,494,988 | -$41,948,810 | $108.40 | 340 |
| 2020 Q4 | 54,805,055 | $7,309,094,231 | -$5,168,274 | $133.38 | 346 |
| 2020 Q3 | 54,501,809 | $4,886,925,888 | +$128,062,995 | $89.63 | 293 |
| 2020 Q2 | 53,116,947 | $4,404,345,280 | +$135,248,429 | $82.91 | 269 |
| 2020 Q1 | 52,041,627 | $2,736,027,312 | -$84,850,501 | $52.61 | 233 |