BlackLine, Inc. insider trading

Bought

—

Sold

$2.4M

1 of 6 on a 10b5-1 plan

Net

−$2.4M

Insiders

4

• Stalick Michelle D

  Chief Accounting Officer

  −$26.2K

  Aug 27, 2026

  780 sh · $33.65

• Tucker Therese

  Director

  −$2.2M

  Aug 24, 2026

  70,000 sh · $31.96

• Yamamoto Mika

  Director

  −$85.4K

  Jun 05, 2026

  3,000 sh · $28.48

• Stalick Michelle D

  Chief Accounting Officer

  −$24.1K

  Jun 01, 2026

  780 sh · $30.93

• Hughes Gregory10b5-1

  Director

  −$49.5K

  May 21, 2026

  1,637 sh · $30.25

• Stalick Michelle D

  Chief Accounting Officer

  −$13.9K

  May 18, 2026

  459 sh · $30.26

Largest purchase

+$486K of BL by Henshall David J (Director) on Aug 08, 2025.

Largest sale

−$3.7M of BL by Partin Mark (Chief Financial Officer) on Sep 30, 2024, under a 10b5-1 plan.

From SEC's quarterly Form 3, 4 and 5 data sets: code P purchases and code S sales of common stock, by the date the trade happened. Where a fund and the people who control it each report the same block, it is counted once. Trades made in the last days of Q2 2026 but filed after it closed arrive with SEC's next quarterly release.

SEC industry classification

Services-Prepackaged Software

Headquarters

Woodland Hills, CA

Incorporated in

DE

Listed on

Nasdaq

SEC Central Index Key

0001666134

Sourced from this company's own SEC submissions record. The industry label is SEC's Standard Industrial Classification, which is more specific than the Technology sector shown above.

The live dashboard is free to open. Alerts, watchlists, full filing history and each mover's benchmark-measured track record are Pro. Monitoring, not advice.

Open-market purchase (code P)

An insider spending their own money at market price. This is the only buy code that reliably carries signal — it is a decision, not compensation.

Grants and option exercises (codes A, M)

Scheduled compensation. Most "insider buying" headlines are really this, which is why InsiderPulse weights it at a fraction of a real purchase.

Cluster buy

Two or more different insiders buying on the open market in the same window. One executive buying can mean anything; three is much harder to explain away.

Are BL insiders buying or selling?

Between May 18, 2026 and Aug 27, 2026, 4 BlackLine, Inc. insiders made no open-market purchases and 6 sales worth $2.4M, a net sale of $2.4M. 1 of the sales was pre-scheduled under a Rule 10b5-1 plan.

How much BL stock have insiders bought and sold in the last two years?

Between Jul 01, 2024 and Jun 30, 2026, 9 BlackLine, Inc. insiders made 1 open-market purchase worth $486K and 39 sales worth $15.2M. 30 of the sales were pre-scheduled under a Rule 10b5-1 plan. In the four quarters to Jun 30, 2026: 1 purchase ($486K) and 9 sales ($409.2K). The largest purchase was Henshall David J buying $486K on Aug 08, 2025. The largest sale was Partin Mark selling $3.7M on Sep 30, 2024.

What was the largest recent BL insider trade?

Tucker Therese (Director) sold $2.2M of BL stock on Aug 24, 2026 at about $31.96 a share.

When did an insider last buy BL shares?

No open-market purchase by a BlackLine, Inc. insider appears in the filings from May 18, 2026 to Aug 27, 2026 — every recorded open-market transaction in that period was a sale. Before that, the most recent purchase in SEC's data was Henshall David J buying $486K on Aug 08, 2025.

Where does BL insider trading data come from?

From the Form 4 filings BlackLine, Inc.'s officers, directors and 10% owners must send the SEC within two business days of a trade. Each row on this page links to its original filing on SEC EDGAR. Share grants and option exercises are kept apart from open-market purchases and sales, because only the latter cost the insider their own money.