Insider Transactions Reported by 20 Insiders of West Bay BDC LLC

Location: New York, NY

Key facts

West Bay BDC LLC has 20 insiders with reported activity on this page.
Net insider value flow over the last year: +$163,349,998.
Recent transaction rows are available for direct filing-level review.

Change

Buy value: $163,349,998; sell value: $0.
Net share flow: +9,359,066.

Research use

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Evidence

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Net insider flow leans to buying over the last 12 months. Net value: +$163,349,998.

Buys

$163,349,998

Shares: 9,359,066

Insiders: 2

Sells

Shares: 0

Insiders: 0

Net

+$163,349,998

Shares: +9,359,066

Insiders: 2

Window (months)	Buy shares	Buy $	Sell $	Net $
0-3	2,577,320	$45,000,000	$0	+$45,000,000
3-6	1,541,026	$27,000,000	$0	+$27,000,000
6-9	5,240,720	$91,349,998	$0	+$91,349,998
9-12	0	$0	$0	$0

West Bay BDC LLC executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Past Year Net Change	Change %	Valuation	Report Date
Qatar Investment Authority	10%+ Owner	$245,579,584	+$162,000,000	+194%	Filing P/S	13 Mar 2026
GSAM Holdings LLC	Other*	$6,047,136	+$1,349,998	+29%	Mixed	13 Mar 2026
David Miller	Co-Chief Executive Officer and Co-President. Exhibit List: Exhibit 24.0 - Power of Attorney				Mixed	28 Jul 2024
Greg Watts	Vice President				Mixed	28 Jul 2024
Jennifer Yang	Vice President				Mixed	28 Jul 2024
Julien Yoo	Chief Compliance Officer				Mixed	28 Jul 2024
Stanley Matuszewski	Chief Financial Officer and Treasurer. Exhibit List: Exhibit 24.0 - Power of Attorney				Mixed	28 Jul 2024
Tucker Greene	Chief Operating Officer				Mixed	28 Jul 2024
Justin Betzen	Vice President				Mixed	28 Jul 2024
Katherine Uniacke	Director				Mixed	28 Jul 2024
Tracy Grooms	Director				Mixed	31 Dec 2025
Vivek Bantwal	Co-Chief Executive Officer. Exhibit List: Exhibit 24.0 - Power of Attorney				Mixed	07 Aug 2025
Timothy J. Leach	Director				Mixed	31 Dec 2025
Richard A. Mark	Director				Mixed	31 Dec 2025
Mai Elsamahy	Principal Accounting Officer. Exhibit List: Exhibit 24.0 - Power of Attorney				Mixed	28 Jul 2024
Alex Chi	Officer				Mixed	07 Aug 2025
Carlos E. Evans	Director				Mixed	28 Jul 2024
Caroline Kraus	Chief Legal Officer				Mixed	28 Jul 2024
Matthew Ryan Carter	Vice President				Mixed	26 Feb 2025
Barkley Karole Dill	Director				Mixed	31 Dec 2025

Top shareholders of West Bay BDC LLC (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: 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.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Qatar Investment Authority	3/4/5 13D/G	10%+ Owner	97% from 13D/G	14,065,268	$245,579,584	+$162,000,000	13 Mar 2026	3/4/5 13D/G
Exor N.V.	13F	Company	617%	182,543,970	$5,001,704,778	—	31 Mar 2026	13F
ORBIMED ADVISORS LLC	13F	Company	21%	6,210,899	$22,079,801	—	31 Mar 2026	13F
Strategic Investment Solutions, Inc. /IL	13F	Company	0%	127	$29,157	—	31 Mar 2026	13F
GSAM Holdings LLC	3/4/5	Other*	— class O/S missing	422,458	$6,047,136	+$1,349,998	13 Mar 2026	3/4/5

Recent Insider Transactions by Companies or Individuals for West Bay BDC LLC

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

Insider	Class	Transaction	%	Value $	* Price $	Shares	Shares Owned	Date	Ownership
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
GSAM Holdings LLC	Common Units of limited liability company interests	Purchase	53.8%	$1,349,998	$17.44	77,416	221,425	22 Sep 2025	Direct
Qatar Investment Authority	Limited Liability Company Units	Purchase	53.9%	$45,000,000	$17.44	2,580,527	7,364,163	22 Sep 2025	Held by West Bay Holding LLC

* An asterisk sign (*) next to the price indicates that the price is likely invalid.