SEC ownership of Midstream Co LLC

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001747009.

Comparable stake leader

COLLAWN PATRICIA K

Disclosed value leader

COLLAWN PATRICIA K

Comparable rows

0/2

Latest evidence

01 Apr 2023

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 1 signal
Latest parsed ownership date
01 Apr 2023
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001747009
Issuer location
Pittsburgh, PA

Ownership snapshot

Top shareholders of Midstream Co LLC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
COLLAWN PATRICIA K
Disclosed value leader
COLLAWN PATRICIA K
Comparable rows
0/2
Latest evidence
01 Apr 2023
3/4/5 Highest disclosed value: $541,731 2 rows are not safely comparable across share classes.

Quick read

COLLAWN PATRICIA K has the largest disclosed position value at $541.7K.

0 of 2 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens COLLAWN PATRICIA K's linked filing trail.
Disclosed position value Top 2
COLLAWN PATRICIA K $541.7K
DORMAN MARGARET K $505.8K

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-2 of 2 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
COLLAWN PATRICIA K
3/4/5
Director
class O/S missing
$541,731
93,725 shares
01 Apr 2023
DORMAN MARGARET K
3/4/5
Director
class O/S missing
$505,796
87,508 shares
01 Jan 2022
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 06 Jun 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-15 of 15 reporting-owner rows connected to Midstream Co LLC. Open a relationship link for the CIK-to-CIK filing trail.

Rows
15
Largest Forms 3/4/5 holder
COLLAWN PATRICIA K
Net 12M change
$0
Latest report
22 Jul 2024
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
COLLAWN PATRICIA K Director $541,731 Mixed 01 Apr 2023
DORMAN MARGARET K Director $505,796 Mixed 01 Jan 2022
Vicky A. Bailey Director $0 Mixed 22 Jul 2024
Thomas F. Karam Executive Chairman, Director $0 Mixed 22 Jul 2024
Robert F. Vagt Director $0 Mixed 22 Jul 2024
Kirk R. Oliver Evp & Cfo $0 Mixed 22 Jul 2024
Kenneth M. Burke Director $0 Mixed 22 Jul 2024
Norman J. Szydlowski Director $0 Mixed 22 Jul 2024
Stephen M. Moore EVP & Chief Legal Officer $0 Mixed 22 Jul 2024
D. Mark Leland Director $0 Mixed 22 Jul 2024
Justin S. Macken EVP Pipeline Ops $0 Mixed 22 Jul 2024
Nathan P. Tetlow SVP Commercial Services $0 Mixed 22 Jul 2024
Sarah M. Barpoulis Director $0 Mixed 22 Jul 2024
Diana M. Charletta President & CEO, Director $0 Mixed 22 Jul 2024
Brian P. Pietrandrea VP and CAO $0 Mixed 22 Jul 2024

Recent insider transactions for Midstream Co LLC

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
No insider transactions were found in the last 12 months for this issuer.
* marks a reported price that did not pass the local price check.
We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. Manage preferences to update or revoke optional consent for future visits. For more information, see our Privacy Policy .