Natural Gas Partners VIII, L.P.

CIK 1377291 · last filed 2011-05-03

Natural Gas Partners VIII, L.P. is a corporate insider who has filed 4 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider was granted $2.68B of EROCW on May 3, 2011. Across all open-market trades the lifetime net is +$4.1M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $154.9M across reported positions. The firm reports its address in Irving, TX. 21 SEC filings were submitted jointly with Natural Gas Partners VII, L.P.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$154.85M

Companies

2

Total Filings

4

Lifetime Open-Market Net

$4.11M

Filer Profile

Reported Address

5221 N. O'CONNOR BLVD., SUITE 1100
IRVING, TX 75039

Phone

(972) 432-1440

State of Incorporation

Related Filers

Natural Gas Partners VII, L.P. — 21 joint filings, latest 2015-10-13

Eagle Rock Holdings, L.P. — 18 joint filings, latest 2011-05-18

Eagle Rock GP, LLC — 17 joint filings, latest 2011-05-18

Montierra Minerals & Production, L.P. — 16 joint filings, latest 2015-10-13

NGP Income Management, L.L.C. — 15 joint filings, latest 2015-10-13

Natural Gas Partners IX, L.P. — 15 joint filings, latest 2016-11-03

NGP IX Offshore Holdings, L.P. — 12 joint filings, latest 2016-11-03

G.F.W. Energy VIII, L.P. — 11 joint filings, latest 2016-11-03

Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
EAGLE ROCK ENERGY PARTNERS L P (EROCW) Delisted	Director	48,399,555	—	—	$0	2	2011-05-03
EROC	10%+ Owner	12,290,046	$12.60	$154.85M	$4.11M	2	2008-11-26

Recent Filings

4 filings

Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.

Filed	Symbol	Action	Net Shares	Net $	Link
2011-05-03	EAGLE ROCK ENERGY PARTNERS L P (EROCW) Delisted	Grant (A)	+254,846,079	$2.68B	EDGAR
2010-08-02	EAGLE ROCK ENERGY PARTNERS L P (EROCW) Delisted	Buy (P)	+7,000,000	$0	EDGAR
2008-11-26	EROC	Buy (P)	+549,260	$4.11M	EDGAR
2007-09-10	EROC	Other (J)	+30,475,210	$0	EDGAR

Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.