Comparable stake leader
Qatar Investment Authority
SEC ownership of West Bay BDC LLC
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002020354.
Disclosed value leader
Exor N.V.
Comparable rows
7/8
Latest evidence
06 Aug 2026
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Qatar Investment Authority
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
7 of 8
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Qatar Investment Authority
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
06 Aug 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0002020354
- Issuer location
- New York, NY
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of West Bay BDC 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
Qatar Investment Authority
Disclosed value leader
Exor N.V.
Comparable rows
7/8
Latest evidence
06 Aug 2026
3/4/5
13D/G
13F
Lead comparable stake: 97%
1 rows are not safely comparable across share classes.
13D/G row: Qatar Investment Authority
Quick read
Qatar Investment Authority leads the comparable SEC ownership view at 97%.
7 of 8 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 Qatar Investment Authority's linked filing trail.
Comparable ownership
Top 5
Qatar Investment Authority
97%
Exor N.V.
586%
ORBIMED ADVISORS LLC
18%
GAGNON SECURITIES LLC
2.4%
Gagnon Advisors, LLC
1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 8 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Qatar Investment Authority |
3/4/5
13D/G
10%+ Owner
|
97%
from 13D/G
|
$309,386,686
17,668,436 shares
|
+$144,000,000 | 06 Aug 2026 |
| Exor N.V. |
13F
Company
|
586%
|
$5,055,509,678
185,932,684 shares
|
— | 30 Jun 2026 |
| ORBIMED ADVISORS LLC |
13F
Company
|
18%
|
$30,275,391
5,680,186 shares
|
— | 30 Jun 2026 |
| GAGNON SECURITIES LLC |
13F
Company
|
2.4%
|
$11,697,619
765,179 shares
|
— | 30 Jun 2026 |
| Gagnon Advisors, LLC |
13F
Company
|
1%
|
$6,119,731
328,488 shares
|
— | 30 Jun 2026 |
| Main Street Group, LTD |
13F
Company
|
0%
|
$213
213 shares
|
— | 30 Jun 2026 |
| Park Place Capital Corp |
13F
Company
|
0%
|
$7,792
1 shares
|
— | 30 Jun 2026 |
| GSAM Holdings LLC |
3/4/5
Other*
|
—
class O/S missing
|
$6,047,136
530,553 shares
|
— | 06 Aug 2026 |
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: +$144,000,000.
Buys
$144,000,000
Insiders: 1
Sells
$0
Insiders: 0
Net
+$144,000,000
Shares: +8,243,038
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 8,243,038
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 1,541,914 | 0 | $27,000,000 | $0 | +$27,000,000 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 2,577,320 | 0 | $45,000,000 | $0 | +$45,000,000 |
| 9-12 | 4,123,804 | 0 | $72,000,000 | $0 | +$72,000,000 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 20 reporting-owner rows connected to West Bay BDC LLC. Open a relationship link for the CIK-to-CIK filing trail.
Rows
20
Largest Forms 3/4/5 holder
Qatar Investment Authority
Net 12M change
+$144,000,000
Latest report
06 Aug 2026
Recent insider transactions for West Bay BDC 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Qatar Investment Authority | Limited Liability Company Units | Purchase | 9.56% | $27,000,000 | $17.51 | 1,541,914 | 17,668,436 | 06 Aug 2026 | Held by West Bay Holding LLC | |
| GSAM Holdings LLC | Common Units of limited liability company interests | Award | 9.55% | 46,257 | 530,553 | 06 Aug 2026 | Direct | |||
| Qatar Investment Authority | Limited Liability Company Units | Purchase | 14.6% | 2,061,254 | 16,126,522 | 25 Jun 2026 | Held by West Bay Holding LLC | |||
| GSAM Holdings LLC | Common Units of limited liability company interests | Award | 14.6% | 61,838 | 484,296 | 25 Jun 2026 | Direct | |||
| Qatar Investment Authority | Limited Liability Company Units | Purchase | 22.4% | $45,000,000 | $17.46 | 2,577,320 | 14,065,268 | 13 Mar 2026 | Held by West Bay Holding LLC | |
| GSAM Holdings LLC | Common Units of limited liability company interests | Award | 22.4% | 77,320 | 422,458 | 13 Mar 2026 | Direct | |||
| Qatar Investment Authority | Limited Liability Company Units | Purchase | 15.5% | $27,000,000 | $17.52 | 1,541,026 | 11,487,966 | 23 Dec 2025 | Held by West Bay Holding LLC | |
| GSAM Holdings LLC | Common Units of limited liability company interests | Award | 15.5% | 46,231 | 345,138 | 23 Dec 2025 | Direct | |||
| GSAM Holdings LLC | Common Units of limited liability company interests | Award | 35% | 77,483 | 298,908 | 26 Nov 2025 | Direct | |||
| Qatar Investment Authority | Limited Liability Company Units | Purchase | 35.1% | $45,000,000 | $17.42 | 2,582,778 | 9,946,941 | 26 Nov 2025 | Held by West Bay Holding LLC |
* marks a reported price that did not pass the local price check.