John T. Dahldorf

John T. Dahldorf is CFO at Volcano CORP (VOLC). They have made 3 open-market trades across 1 company since 2006, most recently 2021-12-23.

CIK 0001365494

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Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.

0 open-market purchases, against 3 sales. Too few scored purchases to measure a record yet.

Current Position

Ticker	Shares	Value
HYPR	16,483	$12K
VOLC	59,333	—
Total		$12K

Shares reported on the most recent Form 4, priced at the 2021-12-23 close. 1 holding could not be priced and is excluded from the total.

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Sell Track Record

Filings3

No scored decision-sell filings

Decision sells only — a first sale after buying the stock, or a sale by a fund or 10% owner. Ordinary sales by officers and directors show no relationship to what the stock does next, so they are counted but not scored.

Routine0%

10b5-1 Plan91%

Volume by Type

SOpen-Market Sale

$10.2M

32 filings

MOption Exercise

$2.2M

34 filings

$1.1M

2 filings

FTax Withholding

$32K

1 filings

Companies

Trade History

32 total

Ticker	Type	Traded	Filed	Price	Value	7d Stock	30d Stock	90d Stock
VOLC	SELL · 10b5-1	2015-01-02	2015-01-05	$17.88	$37K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-04-15	2014-04-16	$19.36	$42K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-03-28	2014-03-31	$19.72	$592	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-02-28	2014-03-03	$21.72	$27K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-02-20	2014-02-21	$21.86	$45K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-02-14	2014-02-19	$21.36	$27K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-02-06	2014-02-07	$20.61	$29K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-01-06	2014-01-07	$21.94	$1.0M	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2014-01-02	2014-01-03	$21.68	$17K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2013-02-27	2013-03-01	$21.68	$27K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2013-02-21	2013-02-22	$24.67	$20K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2013-02-06	2013-02-07	$24.64	$18K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2013-02-05	2013-02-06	$24.78	$78K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2012-04-27	2012-04-27	$27.29	$955K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2012-04-17	2012-04-17	$26.14	$55K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2012-03-28	2012-03-29	$28.02	$981K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2012-02-28	2012-02-29	$28.39	$49K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2012-02-06	2012-02-07	$28.60	$114K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2011-04-01	2011-04-04	$25.80	$1.3M	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2011-03-01	2011-03-01	$26.06	$45K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2011-02-08	2011-02-08	$26.44	$35K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2011-02-04	2011-02-07	$26.39	$64K	N/A	N/A	N/A
VOLC	SELL · 10b5-1	2010-12-08	2010-12-08	$27.71	$1.7M	N/A	N/A	N/A
VOLC	SELL	2010-03-02	2010-03-02	$21.73	$37K	N/A	N/A	N/A
VOLC	SELL	2010-02-05	2010-02-05	$19.12	$50K	N/A	N/A	N/A

John T. Dahldorf

Current Position

Sell Track Record

Volume by Type

Companies

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