BLACKLINE, INC.
Total Trades
98
Buys
4
Sells
63
Largest Trade
N/A
Insiders
12
Institutional Funds
242
Inst. Value
$1M+
Activist Filings
15
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Partin Mark | CFO | EXERCISE | $50K–$100K | 5K | $14.00 | Mar 2, 2023 |
| Partin Mark | CFO | SELL | $100K–$500K | 5K | $70.00 | Mar 2, 2023 |
| Unterman Thomas | Director | EXERCISE | $15K–$50K | 896 | $41.37 | Mar 2, 2023 |
| Unterman Thomas | Director | SELL | $15K–$50K | 448 | $68.31 | Mar 2, 2023 |
| Partin Mark | CFO | SELL | $500K+ | 10K | $69.16 | Mar 2, 2023 |
| Partin Mark | CFO | EXERCISE | $100K–$500K | 10K | $14.00 | Mar 2, 2023 |
| Huffman Marc | CEO | SELL | $100K–$500K | 7K | $70.69 | Feb 23, 2023 |
| Huffman Marc | CEO | GRANT | N/A | 13K | — | Feb 23, 2023 |
| HIRSCH PETER | CTO | GRANT | N/A | 3K | — | Feb 23, 2023 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 2K | $71.92 | Feb 23, 2023 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 5K | $69.77 | Feb 23, 2023 |
| Huffman Marc | CEO | SELL | $1M+ | 20K | $70.85 | Feb 23, 2023 |
| Woodhams Mark | Chief Revenue Offi… | SELL | $100K–$500K | 1K | $69.77 | Feb 23, 2023 |
| Partin Mark | CFO | SELL | $1M+ | 15K | $70.86 | Feb 23, 2023 |
| Partin Mark | CFO | EXERCISE | $100K–$500K | 15K | $14.00 | Feb 23, 2023 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $71.80 | Feb 3, 2023 |
| Unterman Thomas | Director | EXERCISE | $15K–$50K | 1K | $41.37 | Feb 3, 2023 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $68.50 | Jan 4, 2023 |
| Unterman Thomas | Director | EXERCISE | $15K–$50K | 1K | $41.37 | Jan 4, 2023 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $67.46 | Dec 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $15K–$50K | 1K | $41.37 | Dec 1, 2022 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 2K | $59.75 | Nov 21, 2022 |
| Woodhams Mark | Chief Revenue Offi… | SELL | $15K–$50K | 515 | $59.75 | Nov 21, 2022 |
| Woodhams Mark | Chief Revenue Offi… | SELL | $100K–$500K | 4K | $57.82 | Nov 7, 2022 |
| Unterman Thomas | Director | EXERCISE | $15K–$50K | 1K | $23.18 | Nov 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $57.12 | Nov 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $60.68 | Oct 3, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Oct 3, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $66.06 | Sep 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Sep 1, 2022 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 2K | $69.91 | Aug 22, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $62.42 | Aug 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Aug 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Jul 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $66.36 | Jul 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $73.70 | Jun 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Jun 1, 2022 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 3K | $71.77 | May 23, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $66.82 | May 2, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | May 2, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $73.35 | Apr 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Apr 1, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Mar 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $75.69 | Mar 1, 2022 |
| Unterman Thomas | Director | SELL | $15K–$50K | 500 | $71.13 | Feb 24, 2022 |
| Unterman Thomas | Director | EXERCISE | $1K–$15K | 1K | $5.00 | Feb 24, 2022 |
| HIRSCH PETER | CTO | SELL | $100K–$500K | 3K | $71.13 | Feb 23, 2022 |
| Ryan Owen | Director | BUY | $15K–$50K | 300 | $76.82 | Feb 15, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 242 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| CLEARLAKE CAPITAL GROUP, L.P. | 5.7M | $1M+ | SH |
| FIRST MANHATTAN CO. LLC. | 2.4M | $1M+ | SH |
| Neuberger Berman Group LLC | 2.1M | $1M+ | SH |
| ICONIQ Capital, LLC | 2.1M | $1M+ | SH |
| STATE STREET CORP | 2.0M | $1M+ | SH |
| Conestoga Capital Advisors, LLC | 1.8M | $1M+ | SH |
| WESTWOOD HOLDINGS GROUP INC | 1.5M | $1M+ | SH |
| HAWK RIDGE CAPITAL MANAGEMENT LP | 1.5M | $1M+ | SH |
| NORGES BANK | 1.5M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 1.3M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 1.1M | $1M+ | SH |
| Fivespan Partners, LP | 926K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 824K | $1M+ | SH |
| SCHWARTZ INVESTMENT COUNSEL INC | 690K | $1M+ | SH |
| GENEVA CAPITAL MANAGEMENT LLC | 565K | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 483K | $1M+ | SH |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 476K | $1M+ | SH |
| BARCLAYS PLC | 458K | $1M+ | SH |
| FIRST TRUST ADVISORS LP | 457K | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 378K | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Aug 6, 2025
4.3%
2.7M shares
SC 13G/A · Jul 17, 2025
12.6%
7.8M shares
SC 13G/A · May 12, 2025
6.1%
3.9M shares
SC 13G/A · Nov 12, 2024
8.7%
5.4M shares
SC 13G/A · Apr 5, 2024
13.7%
8.5M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
11.0%
6.7M shares
SC 13G/A · Feb 13, 2024
8.0%
4.9M shares
SC 13G/A · Jan 26, 2024
7.9%
4.8M shares
The Vanguard Group - 23-1945930
SC 13G/A · Jul 10, 2023
10.4%
6.3M shares
SC 13G · Feb 14, 2023
9.6%
5.7M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 14, 2023
3.7%
2.2M shares
SC 13G/A · Feb 14, 2023
7.9%
4.8M shares
SC 13G/A · Jan 31, 2023
6.6%
4.0M shares
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC 95-4575414
SC 13G/A · Feb 11, 2022
5.4%
3.1M shares
SC 13G/A · Feb 11, 2022
7.9%
4.7M shares