Insider profile

HAMMER TODD B

This page tracks every SEC Form 4 filing since April 2023 by HAMMER TODD B: 40 transactions in total, none of them an open-market purchase, and 18 sales. Each record is parsed directly from the original filing, with amendments reconciled so a corrected filing never double-counts.

Activity summary

Recent insider activity is bullish. Over the last 30 days, 1 insider purchased shares. Buying was led by Hammer Todd B.

Three year balance

Buy and sell value by quarter, Q2 23 to Q3 26. HAMMER TODD B has been a net seller across the period shown.

Bars below the rule are sales, above are purchases. Largest quarter on the chart is $54.3M.

Track record

Total purchased

$90.1M

Total sold

0B · 18S transactions

Net seller

Overall direction

Most active in

LPTH18S

Filing history: May 2023 — Aug 2026Under a 10b5-1 plan: 0%Full history: 40 filings

Scorecard

No buy track record for this insider.

Scoring an insider means measuring how the stock moved after their own open-market purchases. This insider has not made any, so there is nothing to measure. That is the normal case rather than a gap in the data: most insiders receive stock through awards and option exercises instead of buying it. See insiders who do have a record.

Transaction History

Sourced from SEC EDGAR Form 4 filings. Updated hourly.

Date	Insider	Company	Type	Shares	Price	Value	1d	1w	1m	3m	6m
Aug 14, 2026	Hammer Todd B	GUER	Award	14,164	—	—	+1.8%	—	—	—	—
Jun 18, 2026	Hammer Todd B	GUER	Option Exercise	15,625	—	—	+8.3%	+1.7%	+3.9%	—	—
Jun 18, 2026	Hammer Todd B	GUER	Option Exercise	15,625	$3.05	$48K	+8.3%	+1.7%	+3.9%	—	—
Jun 3, 2026	Hammer Todd B	LPTH	Sale	3,571,400	$14.00	$50.00M	-15.3%	-11.2%	-27.5%	—	—
Jun 3, 2026	Hammer Todd B	LNSR	Award	17,421	—	—	+0.0%	+3.9%	+6.0%	—	—

35 more transactions hidden

Free account · No credit card required

Building something? Get API access →

Reading an insider's Form 4 history

Corporate insiders — directors, officers, and holders of more than 10% of a company's stock — must report their trades to the SEC on Form 4 within two business days. Looking at one insider's filings over time shows whether they tend to buy on the open market (a discretionary use of their own money, generally the strongest signal), sell, or simply receive and exercise equity awards as compensation.

The track record above measures how this insider's past open-market purchases performed in the months after each filing. Trades made under a pre-scheduled Rule 10b5-1 plan are flagged because they carry no timing signal. To pull any insider's full history programmatically, see the insider trading API or our guide to reading Form 4 filings.