Key facts
- BL - BLACKLINE, INC. has 28 insiders with reported activity on this page.
- Net insider value flow over the last year: +$92,293.
- Recent transaction rows are available for direct filing-level review.
Insider Transactions Reported by 28 Insiders of BLACKLINE, INC.
- Symbol
- BL on Nasdaq
- Location
- Woodland Hills, CA
Change
- Buy value: $486,000; sell value: $393,707.
- Net share flow: +1,920.
Research use
- This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
- Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.
Evidence
Filed on Form 4
See Original Filing
Issuer insider activity is sourced from SEC Forms 3, 4, and 5.
Insider trading overview
Last 12 monthsNet insider flow leans to buying over the last 12 months. Net value: +$92,293.
Buys
$486,000
Shares: 10,000
Insiders: 1
Sells
$393,707
Shares: 8,080
Insiders: 3
Net
+$92,293
Shares: +1,920
Insiders: -2
| Window (months) | Buy shares | Sell shares | Buy $ | Sell $ | Net $ |
|---|---|---|---|---|---|
| 0-3 | 0 | 2,096 | $0 | $63,406 | -$63,406 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 2,730 | $0 | $150,150 | -$150,150 |
| 9-12 | 10,000 | 3,254 | $486,000 | $180,151 | +$305,849 |
BLACKLINE, INC. executives and other stock owners filed with the SEC include:
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Therese Tucker | Founder, Director | $165,793,855 | Median | 20 May 2026 | ||
| Mark Partin | Chief Financial Officer | $21,268,981 | Mixed | 20 Feb 2025 | ||
| Marc Huffman | Chief Executive Officer, Director | $18,586,489 | Mixed | 21 Feb 2023 | ||
| Owen Ryan | Chief Executive Officer, Director | $14,711,607 | Median | 20 May 2026 | ||
| Karole Morgan-Prager | Chief Legal and Administrative | $6,028,558 | Median | 20 May 2026 | ||
| Thomas Unterman | Director | $5,414,496 | -$250,589 | -4.4% | Mixed | 27 Oct 2025 |
| Jeremy Ung | Chief Technology Officer | $5,071,553 | Median | 20 May 2026 | ||
| Patrick Villanova | Chief Financial Officer | $4,914,414 | Median | 20 May 2026 | ||
| Jimmy C. Duan | Chief Customer Officer | $4,508,376 | Median | 20 May 2026 | ||
| Stuart van Houten | Chief Commercial Officer | $4,021,382 | Median | 20 May 2026 | ||
| Peter Hirsch | Chief Technology Officer | $3,395,812 | Mixed | 19 May 2023 | ||
| Mark Woodhams | Chief Revenue Officer | $3,354,963 | Filing P/S | 20 May 2025 | ||
| Michelle D. Stalick | Chief Accounting Officer | $1,374,291 | -$93,599 | -6.4% | Median | 20 May 2026 |
| Sophia Velastegui | Director | $960,002 | Median | 07 May 2026 | ||
| David J. Henshall | Director | $843,378 | +$486,000 | +136% | Median | 07 May 2026 |
| Mika Yamamoto | Director | $728,604 | Median | 07 May 2026 | ||
| Brunilda Rios | Director | $670,255 | Median | 07 May 2026 | ||
| Graham Smith | Director | $648,569 | Mixed | 01 Nov 2021 | ||
| Kevin B. Thompson | Director | $632,500 | Filing P/S | 29 Feb 2024 | ||
| Barbara Whye | Director | $627,853 | Median | 07 May 2026 | ||
| Camille Drummond | Director | $501,461 | Median | 06 May 2026 | ||
| Amit Yoran | Director | $471,498 | Mixed | 09 May 2024 | ||
| Scott Davidson | Director | $401,820 | Median | 07 May 2026 | ||
| Saranga Balaji | Director | $362,859 | Median | 07 May 2026 | ||
| William R. Wagner | Director | $338,076 | Mixed | 09 May 2024 | ||
| Storm Duncan | Director | $271,506 | Median | 07 May 2026 | ||
| Megan Prichard | Director | $271,506 | Median | 07 May 2026 | ||
| Gregory Hughes | Director | $234,588 | -$49,519 | -17% | Filing P/S | 21 May 2026 |
Top shareholders of BLACKLINE, INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13D/G
13F
|
Company |
13%
|
7,849,789
|
$444,455,053 | $0 | 30 Jun 2025 | |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
|
Vanguard Portfolio Management · Company |
6.9%
|
4,106,074
|
$151,924,738 | $0 | 31 Mar 2026 | |
| Fivespan Partners, LP |
13D/G
13F
|
Company |
5.1%
|
3,013,943
|
$132,161,401 | $0 | 11 Mar 2026 | |
| FMR LLC |
13D/G
13F
|
Company |
4.3%
|
2,688,553
|
$144,240,856 | -$64,474,263 | 30 Jun 2025 | |
| Therese Tucker |
3/4/5
|
Founder, Director |
7.5%
|
4,480,915
|
$165,793,855 | — | 20 May 2026 | |
| Patrick Villanova |
3/4/5
|
Chief Financial Officer |
0.22%
|
132,822
|
$4,914,414 | — | 20 May 2026 | |
| Jimmy C. Duan |
3/4/5
|
Chief Customer Officer |
0.2%
|
121,848
|
$4,508,376 | — | 20 May 2026 | |
| Stuart van Houten |
3/4/5
|
Chief Commercial Officer |
0.18%
|
108,686
|
$4,021,382 | — | 20 May 2026 | |
| Thomas Unterman |
3/4/5
|
Director |
0.17%
|
100,471
|
$5,414,496 | -$250,589 | 27 Oct 2025 | |
| Michelle D. Stalick |
3/4/5
|
Chief Accounting Officer |
0.06%
|
37,143
|
$1,374,291 | -$93,599 | 20 May 2026 | |
| Sophia Velastegui |
3/4/5
|
Director |
0.04%
|
25,946
|
$960,002 | — | 07 May 2026 | |
| David J. Henshall |
3/4/5
|
Director |
0.04%
|
22,794
|
$843,378 | +$486,000 | 07 May 2026 | |
| Mika Yamamoto |
3/4/5
|
Director |
0.03%
|
19,692
|
$728,604 | — | 07 May 2026 | |
| Brunilda Rios |
3/4/5
|
Director |
0.03%
|
18,115
|
$670,255 | — | 07 May 2026 | |
| Barbara Whye |
3/4/5
|
Director |
0.03%
|
16,969
|
$627,853 | — | 07 May 2026 | |
| Camille Drummond |
3/4/5
|
Director |
0.02%
|
13,553
|
$501,461 | — | 06 May 2026 | |
| Scott Davidson |
3/4/5
|
Director |
0.02%
|
10,860
|
$401,820 | — | 07 May 2026 | |
| Saranga Balaji |
3/4/5
|
Director |
0.02%
|
9,807
|
$362,859 | — | 07 May 2026 | |
| Gregory Hughes |
3/4/5
|
Director |
0.01%
|
7,755
|
$234,588 | -$49,519 | 21 May 2026 | |
| Megan Prichard |
3/4/5
|
Director |
0.01%
|
7,338
|
$271,506 | — | 07 May 2026 | |
| Storm Duncan |
3/4/5
|
Director |
0.01%
|
7,338
|
$271,506 | — | 07 May 2026 | |
| CLEARLAKE CAPITAL GROUP, L.P. |
13F
|
Company |
9.6%
|
5,712,300
|
$211,355,100 | — | 31 Mar 2026 | |
| UBS Group AG |
13F
|
Company |
5.4%
|
3,203,298
|
$118,522,026 | — | 31 Mar 2026 | |
| FIRST MANHATTAN CO. LLC. |
13F
|
Company |
4.5%
|
2,676,987
|
$99,048,519 | — | 31 Mar 2026 | |
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
|
Company |
3.9%
|
2,349,160
|
$86,918,920 | — | 31 Mar 2026 | |
| ICONIQ Capital, LLC |
13F
|
Company |
3.5%
|
2,087,081
|
$77,221,997 | — | 31 Mar 2026 | |
| STATE STREET CORP |
13F
|
Company |
3.4%
|
2,040,318
|
$75,491,766 | — | 31 Mar 2026 | |
| Neuberger Berman Group LLC |
13F
|
Company |
3.4%
|
2,024,391
|
$74,902,467 | — | 31 Mar 2026 | |
| HAWK RIDGE CAPITAL MANAGEMENT LP |
13F
|
Company |
3.2%
|
1,890,823
|
$69,960,451 | — | 31 Mar 2026 | |
| Conestoga Capital Advisors, LLC |
13F
|
Company |
2.8%
|
1,685,484
|
$62,362,908 | — | 31 Mar 2026 | |
| WESTWOOD HOLDINGS GROUP INC |
13F
|
Company |
2.4%
|
1,456,649
|
$53,896,013 | — | 31 Mar 2026 | |
| Engaged Capital LLC |
13F
|
Company |
2.3%
|
1,367,619
|
$50,601,903 | — | 31 Mar 2026 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.1%
|
1,234,191
|
$45,673,737 | — | 31 Mar 2026 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
2%
|
1,210,288
|
$44,163,427 | — | 31 Mar 2026 | |
| MORGAN STANLEY |
13F
|
Company |
1.8%
|
1,083,687
|
$40,096,448 | — | 31 Mar 2026 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
1.8%
|
1,063,655
|
$39,354,410 | — | 31 Mar 2026 | |
| BANK OF AMERICA CORP /DE/ |
13F
|
Company |
1.5%
|
914,813
|
$33,848,069 | — | 31 Mar 2026 | |
| Tensile Capital Management LP |
13F
|
Company |
1.3%
|
750,786
|
$27,779,082 | — | 31 Mar 2026 | |
| FIRST TRUST ADVISORS LP |
13F
|
Company |
1%
|
616,716
|
$22,818,492 | — | 31 Mar 2026 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.99%
|
591,514
|
$21,886,018 | — | 31 Mar 2026 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.87%
|
520,850
|
$19,271,450 | — | 31 Mar 2026 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.85%
|
508,929
|
$18,830,373 | — | 31 Mar 2026 | |
| GENEVA CAPITAL MANAGEMENT LLC |
13F
|
Company |
0.8%
|
478,086
|
$17,689,189 | — | 31 Mar 2026 | |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP |
13F
|
Company |
0.79%
|
468,519
|
$17,335,203 | — | 31 Mar 2026 | |
| PALISADE CAPITAL MANAGEMENT, LP |
13F
|
Company |
0.74%
|
441,232
|
$16,325,584 | — | 31 Mar 2026 | |
| Potrero Capital Research LLC |
13F
|
Company |
0.71%
|
421,149
|
$15,582,513 | — | 31 Mar 2026 | |
| JUPITER ASSET MANAGEMENT LTD |
13F
|
Company |
0.65%
|
390,787
|
$14,459,119 | — | 31 Mar 2026 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.63%
|
377,360
|
$13,962,331 | — | 31 Mar 2026 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.63%
|
376,466
|
$13,929,242 | — | 31 Mar 2026 | |
| PRINCIPAL FINANCIAL GROUP INC |
13F
|
Company |
0.61%
|
361,796
|
$13,386,452 | — | 31 Mar 2026 |
Recent Insider Transactions by Companies or Individuals for BLACKLINE, INC.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Value $ | * Price $ | Shares | Shares Owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Gregory Hughes | BL | Common Stock | Sale | -17.4% | $49,519 | $30.25 | -1,637 | 7,755 | 21 May 2026 | Direct |
| Jimmy C. Duan | BL | Common Stock | Tax liability | -1.57% | -1,941 | 121,848 | 20 May 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Tax liability | -1.66% | -6,699 | 397,611 | 20 May 2026 | Direct | ||
| Michelle D. Stalick | BL | Common Stock | Tax liability | -2.29% | -871 | 37,143 | 20 May 2026 | Direct | ||
| Patrick Villanova | BL | Common Stock | Tax liability | -1.31% | -1,759 | 132,822 | 20 May 2026 | Direct | ||
| Stuart van Houten | BL | Common Stock | Tax liability | -1.56% | -1,720 | 108,686 | 20 May 2026 | Direct | ||
| Jeremy Ung | BL | Common Stock | Tax liability | -1.62% | -2,263 | 137,069 | 20 May 2026 | Direct | ||
| Therese Tucker | BL | Common Stock | Tax liability | -1.84% | -6,663 | 354,997 | 20 May 2026 | Direct | ||
| Karole Morgan-Prager | BL | Common Stock | Tax liability | -1.64% | -2,725 | 162,934 | 20 May 2026 | Direct | ||
| Michelle D. Stalick | BL | Common Stock | Sale | -1.19% | $13,887 | $30.26 | -459 | 38,014 | 18 May 2026 | Direct |
| Owen Ryan | BL | Common Stock | Gift | -0.06% | -250 | 404,310 | 14 May 2026 | Direct | ||
| Sophia Velastegui | BL | Common Stock | Award | 32.8% | 6,416 | 25,946 | 07 May 2026 | Direct | ||
| Megan Prichard | BL | Common Stock | Award | 695.9% | 6,416 | 7,338 | 07 May 2026 | Direct | ||
| Barbara Whye | BL | Common Stock | Award | 60.8% | 6,416 | 16,969 | 07 May 2026 | Direct | ||
| Brunilda Rios | BL | Common Stock | Award | 54.8% | 6,416 | 18,115 | 07 May 2026 | Direct | ||
| Mika Yamamoto | BL | Common Stock | Award | 48.3% | 6,416 | 19,692 | 07 May 2026 | Direct | ||
| Storm Duncan | BL | Common Stock | Award | 695.9% | 6,416 | 7,338 | 07 May 2026 | Direct | ||
| David J. Henshall | BL | Common Stock | Award | 39.2% | 6,416 | 22,794 | 07 May 2026 | Direct | ||
| Scott Davidson | BL | Common Stock | Award | 144.4% | 6,416 | 10,860 | 07 May 2026 | Direct | ||
| Gregory Hughes | BL | Common Stock | Award | 215.6% | 6,416 | 9,392 | 07 May 2026 | Direct | ||
| Saranga Balaji | BL | Common Stock | Award | 189.2% | 6,416 | 9,807 | 07 May 2026 | Direct | ||
| Camille Drummond | BL | Common Stock | Award | 89.9% | 6,416 | 13,553 | 07 May 2026 | Direct | ||
| Camille Drummond | BL | Common Stock | Tax liability | -2.43% | -178 | 7,137 | 06 May 2026 | Direct | ||
| Jimmy C. Duan | BL | Common Stock | Award | 49.9% | 41,040 | 123,330 | 01 Apr 2026 | Direct | ||
| Karole Morgan-Prager | BL | Common Stock | Award | 39% | 46,510 | 165,659 | 01 Apr 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Award | 59.3% | 150,470 | 404,101 | 01 Apr 2026 | Direct | ||
| Michelle D. Stalick | BL | Common Stock | Award | 76% | 16,420 | 38,014 | 01 Apr 2026 | Direct | ||
| Jeremy Ung | BL | Common Stock | Award | 57% | 50,610 | 139,332 | 01 Apr 2026 | Direct | ||
| Stuart van Houten | BL | Common Stock | Award | 76.6% | 47,880 | 110,406 | 01 Apr 2026 | Direct | ||
| Patrick Villanova | BL | Common Stock | Award | 88.4% | 62,930 | 134,122 | 01 Apr 2026 | Direct | ||
| Megan Prichard | BL | Common Stock | Award | 922 | 922 | 11 Mar 2026 | Direct | |||
| Storm Duncan | BL | Common Stock | Award | 922 | 922 | 11 Mar 2026 | Direct | |||
| Jeremy Ung | BL | Common Stock | Tax liability | -10.5% | -10,404 | 88,722 | 20 Feb 2026 | Direct | ||
| Jeremy Ung | BL | Common Stock | Options Exercise | 15.8% | 13,543 | 99,126 | 20 Feb 2026 | Direct | ||
| Patrick Villanova | BL | Common Stock | Tax liability | -12.9% | -10,573 | 71,192 | 20 Feb 2026 | Direct | ||
| Patrick Villanova | BL | Common Stock | Options Exercise | 12.3% | 8,940 | 81,765 | 20 Feb 2026 | Direct | ||
| Stuart van Houten | BL | Common Stock | Tax liability | -10.6% | -7,453 | 62,526 | 20 Feb 2026 | Direct | ||
| Stuart van Houten | BL | Common Stock | Options Exercise | 14.7% | 8,979 | 69,979 | 20 Feb 2026 | Direct | ||
| Therese Tucker | BL | Common Stock | Tax liability | -8.08% | -31,786 | 361,660 | 20 Feb 2026 | Direct | ||
| Therese Tucker | BL | Common Stock | Options Exercise | 12% | 42,318 | 393,446 | 20 Feb 2026 | Direct | ||
| Michelle D. Stalick | BL | Common Stock | Tax liability | -11.6% | -2,842 | 21,594 | 20 Feb 2026 | Direct | ||
| Michelle D. Stalick | BL | Common Stock | Options Exercise | 5.83% | 1,347 | 24,436 | 20 Feb 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Tax liability | -13.3% | -35,803 | 233,074 | 20 Feb 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Options Exercise | 18.7% | 42,318 | 268,877 | 20 Feb 2026 | Direct | ||
| Karole Morgan-Prager | BL | Common Stock | Tax liability | -11.2% | -15,103 | 119,149 | 20 Feb 2026 | Direct | ||
| Karole Morgan-Prager | BL | Common Stock | Options Exercise | 13.2% | 15,678 | 134,252 | 20 Feb 2026 | Direct | ||
| Jimmy C. Duan | BL | Common Stock | Tax liability | -6.36% | -5,590 | 82,290 | 20 Feb 2026 | Direct | ||
| Jimmy C. Duan | BL | Common Stock | Options Exercise | 15.2% | 11,608 | 87,880 | 20 Feb 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Gift | -0.03% | -75 | 247,116 | 20 Feb 2026 | Direct | ||
| Owen Ryan | BL | Common Stock | Gift | -0.09% | -225 | 247,191 | 19 Feb 2026 | Direct |
* An asterisk sign (*) next to the price indicates that the price is likely invalid.