$STEM insider trading

Over the last 12 months, Stem insiders reported no purchases and 15 sales totaling $389K across SEC Form 4 filings. 7% of those filings were made under pre-arranged 10b5-1 trading plans.

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$389K
15
6
7%
Side
$1K$10K$100KJun '26JulAugSep
Tappin Matthew
Laureles Saul R.
Carlson Michael James
Narayanan Arun
Musfeldt Brian

All insider trades

Scroll the table sideways for price, value and marks.

Jul 20, 2026Musfeldt Brian▼ Sale996$6.11$6K-29.5%
Jul 2, 2026Laureles Saul R.▼ Sale675$7.85$5K-1.9%
Jul 2, 2026Tappin Matthew▼ Sale996$7.85$8K-9.4%
Jul 2, 2026Carlson Michael James▼ Sale1,347$7.85$11K-5%
Jul 2, 2026Narayanan Arun▼ Sale1,996$7.85$16K-9.5%
Mar 11, 2026Tappin Matthew▼ Sale402$10.83$4K-12.5%
Mar 10, 2026Narayanan Arun▼ Sale5,145$11.12$57K-28.4%
Mar 10, 2026Tappin Matthew▼ Sale655$11.12$7K-16.9%
Mar 10, 2026Carlson Michael James▼ Sale2,079$11.12$23K-9.7%
Mar 10, 2026Laureles Saul R.▼ Sale942$11.12$10K-3.3%
Mar 4, 2026Tappin Matthew▼ Sale485$9.8$5K-16.7%
Mar 3, 2026Laureles Saul R.▼ Sale292$9.67$3K-1.1%
Feb 20, 2026Tappin Matthew▼ Sale366$11.4$4K-14.1%
Nov 18, 2025Shukla Rahul▼ Sale3,674$16.21$60K-100%
Nov 11, 2025Tappin Matthew▼ Sale9,584$17.7$170K-83.7%

Every $STEM filing on this page is one API call away

The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Stem filings can reach your inbox instead.

Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $STEM feed.