Comparable stake leader
Irina Zilbergleyt
SEC ownership of ISQ Open Infrastructure Co LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002059924.
Disclosed value leader
Irina Zilbergleyt
Comparable rows
0/5
Latest evidence
28 Nov 2025
- Parsed ownership sources
-
3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Irina Zilbergleyt
Ranking: Comparable ownership first, then disclosed value
- Latest parsed ownership date
-
28 Nov 2025
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002059924
- Issuer location
- Miami, FL
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
1 signal
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ISQ Open Infrastructure 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
Irina Zilbergleyt
Disclosed value leader
Irina Zilbergleyt
Comparable rows
0/5
Latest evidence
28 Nov 2025
3/4/5
Highest disclosed value: $299,999
5 rows are not safely comparable across share classes.
Quick read
Irina Zilbergleyt has the largest disclosed position value at $300K.
0 of 5 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 Irina Zilbergleyt's linked filing trail.
Disclosed position value
Top 5
Irina Zilbergleyt
$300K
Brian Collett
$250K
Terrence W. Olson
$15.5K
Trisha A. Miller
$15.5K
William D. Lee
$15.5K
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-5 of 5 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Irina Zilbergleyt |
3/4/5
Chief Operating Officer, Director
|
—
class O/S missing
|
$299,999
10,931 shares
|
+$300,000 | 28 Nov 2025 |
| Brian Collett |
3/4/5
Chief Investment Officer, Director
|
—
class O/S missing
|
$249,999
9,109 shares
|
+$250,000 | 28 Nov 2025 |
| Terrence W. Olson |
3/4/5
Director
|
—
class O/S missing
|
$15,497
620 shares
|
+$15,497 | 01 Oct 2025 |
| Trisha A. Miller |
3/4/5
Director
|
—
class O/S missing
|
$15,497
620 shares
|
+$15,497 | 01 Oct 2025 |
| William D. Lee |
3/4/5
Director
|
—
class O/S missing
|
$15,497
620 shares
|
+$15,497 | 01 Oct 2025 |
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
Net insider flow leans to buying over the last 12 months. Net value: +$596,492.
Buys
$596,492
Insiders: 5
Sells
$0
Insiders: 0
Net
+$596,492
Shares: +21,900
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 21,900
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 | 21,900 | 0 | $596,492 | $0 | +$596,492 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-7 of 7 reporting-owner rows connected to ISQ Open Infrastructure Co LLC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
7
Largest Forms 3/4/5 holder
Irina Zilbergleyt
Net 12M change
+$596,491
Latest report
28 Nov 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Irina Zilbergleyt | Chief Operating Officer, Director | $299,999 | +$300,000 | +100% | Filing P/S | 28 Nov 2025 |
| Brian Collett | Chief Investment Officer, Director | $249,999 | +$250,000 | +100% | Filing P/S | 28 Nov 2025 |
| Terrence W. Olson | Director | $15,497 | +$15,497 | +100% | Filing P/S | 01 Oct 2025 |
| Trisha A. Miller | Director | $15,497 | +$15,497 | +100% | Filing P/S | 01 Oct 2025 |
| William D. Lee | Director | $15,497 | +$15,497 | +100% | Filing P/S | 01 Oct 2025 |
| Starr Frohlich | Title - Principal Accounting Officer/Principle Financial Officer. Exhibit 24 - Power of Attorney. | Mixed | 13 Jun 2025 | |||
| Walid A. Chammah | Chief Executive Officer, Director | Mixed | 13 Jun 2025 |
Recent insider transactions for ISQ Open Infrastructure 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Brian Collett | Class E Shares | Purchase | $250,000 | $27.44 | 9,109 | 9,109 | 28 Nov 2025 | Direct | ||
| Irina Zilbergleyt | Class E Shares | Purchase | $300,000 | $27.44 | 10,931 | 10,931 | 28 Nov 2025 | Direct | ||
| Trisha A. Miller | Class E Shares | Purchase | $15,497 | $25.00 | 620 | 620 | 01 Oct 2025 | Direct | ||
| Terrence W. Olson | Class E Shares | Purchase | $15,497 | $25.00 | 620 | 620 | 01 Oct 2025 | Direct | ||
| William D. Lee | Class E Shares | Purchase | $15,497 | $25.00 | 620 | 620 | 01 Oct 2025 | Direct |
* marks a reported price that did not pass the local price check.