UNITED STS LIME & MINERALS I

Ticker: USLM CUSIP: 911922102 Class: Common Stock

PDT Partners, LLC's Holding History (CIK: 0001564702)

Note: Option positions (PUT/CALL) are excluded.

Q3 2014

Shares 5,900 Value ($000) $343 Avg Close $11.99 Range $11.07 - $13.33

Q2 2014

Shares 5,900 Value ($000) $382 Avg Close $11.97 Range $10.60 - $13.70

Q1 2014

Shares 4,984 Value ($000) $281 Avg Close $11.30 Range $10.51 - $12.26

Q4 2013

Shares 4,984 Value ($000) $305 Avg Close $11.47 Range $10.83 - $12.50

Q3 2013

Shares 4,784 Value ($000) $280 Avg Close $11.66 Range $10.10 - $12.29

Q2 2013

Shares 3,900 Value ($000) $204 Avg Close $9.83 Range $9.00 - $10.83

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2014	5,900	$343	$11.99	$11.07 - $13.33
Q2 2014	5,900	$382	$11.97	$10.60 - $13.70
Q1 2014	4,984	$281	$11.30	$10.51 - $12.26
Q4 2013	4,984	$305	$11.47	$10.83 - $12.50
Q3 2013	4,784	$280	$11.66	$10.10 - $12.29
Q2 2013	3,900	$204	$9.83	$9.00 - $10.83