SEC ownership of KILROY REALTY CORP

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001025996.

Comparable stake leader

BlackRock, Inc.

Disclosed value leader

BlackRock, Inc.

Comparable rows

8/50

Latest evidence

14 Oct 2026

Top shareholders Insider holders Latest transactions
Public ticker
KRC on NYSE
Parsed ownership sources
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
Largest SEC-reported holder
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
8 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
14 Oct 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001025996
Issuer location
Los Angeles, CA

Ownership snapshot

Top shareholders of KILROY REALTY CORP (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
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
8/50
Latest evidence
14 Oct 2026
13F 13D/G 3/4/5 Lead comparable stake: 12% 42 rows are not safely comparable across share classes. 13D/G row: BlackRock, Inc. Showing 1-8 of 50 holder rows.

Quick read

BlackRock, Inc. leads the comparable SEC ownership view at 12%.

8 of 50 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 BlackRock, Inc.'s linked filing trail.
Comparable ownership Top 5
BlackRock, Inc. 12%
D1 Capital Partners L.P. 9.5%
VANGUARD PORTFOLIO MANAGEMENT LLC 8.3%
STATE STREET CORP 5.3%
VANGUARD CAPITAL MANAGEMENT LLC 5.2%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
BlackRock, Inc.
13F 13D/G
Company
13F 13D/G
12%
Reported 13D/G · 31 Mar 2025
$581,003,128
15,505,821 shares
 — 30 Jun 2026
D1 Capital Partners L.P.
13F 13D/G
Company
13F 13D/G
9.5%
Reported 13D/G · 31 Mar 2026
$393,364,556
10,498,120 shares
 — 30 Jun 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
13F 13D/G
Company · Vanguard Portfolio Management
13F 13D/G
8.3%
Reported 13D/G · 31 Mar 2026
$358,881,852
9,577,845 shares
 — 30 Jun 2026
STATE STREET CORP
13F 13D/G
Company · STATE STREET CORPORATION
13F 13D/G
5.3%
Reported 13D/G · 31 Mar 2026
$232,834,912
6,129,792 shares
 — 30 Jun 2026
VANGUARD CAPITAL MANAGEMENT LLC
13F 13D/G
Company · Vanguard Capital Management
13F 13D/G
5.2%
Reported 13D/G · 31 Mar 2026
$192,344,564
5,133,295 shares
 — 30 Jun 2026
COHEN & STEERS, INC.
13D/G 13F
Company
13D/G 13F
5%
Reported 13D/G · 30 Jun 2026
$226,873,254
5,769,920 shares
 -$85,949,234 30 Jun 2026
FMR LLC
13D/G 13F
Company
13D/G 13F
4.2%
Reported 13D/G · 31 Dec 2025
$185,694,313
4,969,074 shares
 -$76,461,412 31 Dec 2025
NORGES BANK
13D/G 13F
Company
13D/G 13F
2%
Reported 13D/G · 30 Jun 2026
$91,909,360
2,337,471 shares
 -$176,279,660 30 Jun 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 selling over the last 12 months. Net value: -$2,604,584.

Buys
$0
Insiders: 0
Sells
$2,604,584
Insiders: 5
Net
-$2,604,584
Shares: -71,133
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 71,133
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 67,189 $0 $2,438,993 -$2,438,993
6-9 0 0 $0 $0 $0
9-12 0 3,944 $0 $165,592 -$165,592

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 23 reporting-owner rows connected to KILROY REALTY CORP. Open a relationship link for the CIK-to-CIK filing trail.

Rows
23
Largest Forms 3/4/5 holder
John B. Kilroy Jr.
Net 12M change
-$2,604,584
Latest report
14 Oct 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
John B. Kilroy Jr. Director, Chair $57,415,356 Mixed 10 Apr 2024
Justin William Smart President $20,942,147 -$419,904 -2% Mixed 14 Oct 2026
Tyler H. Rose President $9,647,037 Mixed 31 Jan 2023
Angela M. Aman Chief Executive Officer, Director $6,465,254 Mixed 14 Oct 2026
A. Robert Paratte Executive Vice President, Chief Leasing Officer $5,960,804 -$629,867 -9.6% Mixed 14 Oct 2026
Eliott Trencher Evp, Cio, Cfo $4,285,757 Mixed 14 Oct 2026
Heidi Rena Roth Executive Vice President, Chief Administrative Officer $4,112,594 -$853,779 -17% Mixed 07 May 2026
Scott S. Ingraham Director $2,159,389 Mixed 09 Apr 2025
Edward F. Brennan PhD Director $1,753,714 Median 14 Oct 2026
Gary R. Stevenson Director $1,463,692 Median 14 Oct 2026
Michelle Ngo SVP, CFO & Treasurer $1,320,717 Mixed 28 Jan 2022
Merryl Elizabeth Werber SVP, CAO, Controller $1,127,967 Mixed 08 Oct 2025
Jeffrey Kuehling Executive Vice President, CFO and Treasurer; Exhibit 24 - Power of Attorney for Jeffrey Kuehling $1,000,205 Mixed 08 Jul 2026
Peter B. Stoneberg Director $986,727 Mixed 08 Apr 2026
Louisa G. Ritter Director $951,807 Median 14 Oct 2026
John Osmond EVP, Head of Asset Management $931,034 Mixed 25 Mar 2025
Daryl J. Carter Director $592,165 Median 14 Oct 2026
Lauren N. Stadler Executive Vice President, General Counsel and Secretary $524,464 -$103,935 -17% Median 14 Oct 2026
Jolie A. Hunt Director $466,608 -$597,099 -56% Median 14 Oct 2026
David Andrew Kieske Director $261,408 Median 14 Oct 2026

Recent insider transactions for KILROY REALTY CORP

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
Daryl J. Carter : KRC Common stock, par value $0.01 per share Award 1.62% 284 17,799 14 Oct 2026 Direct
Justin William Smart : KRC Common stock, par value $0.01 per share Award 1.21% 6,339 531,641 14 Oct 2026 Direct
Justin William Smart : KRC Restricted Stock Units Award 1.62% 1,619 101,431 14 Oct 2026 Direct
Cia Buckley Marakovits : KRC Common stock, par value $0.01 per share Award 1.62% 125 7,857 14 Oct 2026 Direct
David Andrew Kieske : KRC Common stock, par value $0.01 per share Award 1.62% 125 7,857 14 Oct 2026 Direct
Jolie A. Hunt : KRC Common stock, par value $0.01 per share Award 0.51% 71.35 14,025 14 Oct 2026 Direct
Chandni Jalan : KRC Common stock, par value $0.01 per share Award 1.62% 97.7 6,122 14 Oct 2026 Direct
A. Robert Paratte : KRC Common stock, par value $0.01 per share Award 0.37% 435 118,694 14 Oct 2026 Direct
A. Robert Paratte : KRC Restricted Stock Units Award 1.62% 1,001 62,704 14 Oct 2026 Direct
Angela M. Aman : KRC Common stock, par value $0.01 per share Award 0.84% 1,281 154,224 14 Oct 2026 Direct
Angela M. Aman : KRC Restricted Stock Units Award 1.62% 1,327 83,158 14 Oct 2026 Direct
Louisa G. Ritter : KRC Common stock, par value $0.01 per share Award 1.16% 328 28,609 14 Oct 2026 Direct
Eliott Trencher : KRC Common stock, par value $0.01 per share Award 0.42% 354 83,940 14 Oct 2026 Direct
Eliott Trencher : KRC Restricted Stock Units Award 1.62% 777 48,687 14 Oct 2026 Direct
Edward F. Brennan PhD : KRC Common stock, par value $0.01 per share Award 0.99% 438 44,498 14 Oct 2026 Direct
Lauren N. Stadler : KRC Common stock, par value $0.01 per share Award 1.06% 166 15,764 14 Oct 2026 Direct
Lauren N. Stadler : KRC Restricted Stock Units Award 1.62% 115 7,181 14 Oct 2026 Direct
Gary R. Stevenson : KRC Common stock, par value $0.01 per share Award 1.62% 702 43,994 14 Oct 2026 Direct
Sherrie Sage Schwartz : KRC Common stock, par value $0.01 per share Award 1.46% 78.46 5,468 14 Oct 2026 Direct
Sherrie Sage Schwartz : KRC Restricted Stock Units Award 1.62% 106 6,646 14 Oct 2026 Direct
Justin William Smart : KRC Common stock, par value $0.01 per share Award 1.04% 5,429 525,302 08 Jul 2026 Direct
Justin William Smart : KRC Restricted Stock Units Award 1.41% 1,386 99,813 08 Jul 2026 Direct
Cia Buckley Marakovits : KRC Common stock, par value $0.01 per share Award 1.41% 107 7,732 08 Jul 2026 Direct
David Andrew Kieske : KRC Common stock, par value $0.01 per share Award 1.41% 107 7,732 08 Jul 2026 Direct
Jolie A. Hunt : KRC Common stock, par value $0.01 per share Award 0.44% 61.11 13,954 08 Jul 2026 Direct
Lauren N. Stadler : KRC Common stock, par value $0.01 per share Award 0.92% 142 15,598 08 Jul 2026 Direct
Lauren N. Stadler : KRC Restricted Stock Units Award 1.41% 98.14 7,066 08 Jul 2026 Direct
Eliott Trencher : KRC Common stock, par value $0.01 per share Award 0.36% 303 83,586 08 Jul 2026 Direct
Eliott Trencher : KRC Restricted Stock Units Award 1.41% 665 47,911 08 Jul 2026 Direct
Gary R. Stevenson : KRC Common stock, par value $0.01 per share Award 1.41% 601 43,292 08 Jul 2026 Direct
A. Robert Paratte : KRC Common stock, par value $0.01 per share Award 0.32% 372 118,259 08 Jul 2026 Direct
A. Robert Paratte : KRC Restricted Stock Units Award 1.41% 857 61,703 08 Jul 2026 Direct
Angela M. Aman : KRC Common stock, par value $0.01 per share Award 0.72% 1,097 152,944 08 Jul 2026 Direct
Angela M. Aman : KRC Restricted Stock Units Award 1.41% 1,137 81,831 08 Jul 2026 Direct
Louisa G. Ritter : KRC Common stock, par value $0.01 per share Award 1% 281 28,281 08 Jul 2026 Direct
Sherrie Sage Schwartz : KRC Common stock, par value $0.01 per share Award 1.26% 67.2 5,390 08 Jul 2026 Direct
Sherrie Sage Schwartz : KRC Restricted Stock Units Award 1.41% 90.84 6,540 08 Jul 2026 Direct
Jeffrey Kuehling : KRC Common stock, par value $0.01 per share Award 0.6% 159 26,694 08 Jul 2026 Direct
Jeffrey Kuehling : KRC Restricted Stock Units Award 1.41% 184 13,249 08 Jul 2026 Direct
Edward F. Brennan PhD : KRC Common stock, par value $0.01 per share Award 0.86% 375 44,060 08 Jul 2026 Direct
Chandni Jalan : KRC Common stock, par value $0.01 per share Award 1.41% 83.68 6,025 08 Jul 2026 Direct
Daryl J. Carter : KRC Common stock, par value $0.01 per share Award 1.41% 243 17,515 08 Jul 2026 Direct
Jolie A. Hunt : KRC Common stock, par value $0.01 per share Sale -53.2% $597,099 $37.79 -15,800 13,892 29 Jun 2026 Direct
A. Robert Paratte : KRC Common stock, par value $0.01 per share Sale -6.35% $298,737 $37.34 -8,000 117,886 24 Jun 2026 Direct
Justin William Smart : KRC Common stock, par value $0.01 per share Sale -2.04% $419,904 $38.71 -10,848 519,872 09 Jun 2026 Direct
Jolie A. Hunt : KRC Common stock, par value $0.01 per share Award 17.1% 4,339 29,692 19 May 2026 Direct
David Andrew Kieske : KRC Common stock, par value $0.01 per share Award 132.1% 4,339 7,624 19 May 2026 Direct
Louisa G. Ritter : KRC Common stock, par value $0.01 per share Award 18.3% 4,339 28,000 19 May 2026 Direct
Daryl J. Carter : KRC Common stock, par value $0.01 per share Award 33.6% 4,339 17,271 19 May 2026 Direct
Edward F. Brennan PhD : KRC Common stock, par value $0.01 per share Award 11% 4,339 43,685 19 May 2026 Direct
* marks a reported price that did not pass the local price check.
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