ARE
insider transactionsALEXANDRIA REAL ESTATE EQUITIES, INC. — buys & sells by directors, officers and 10% owners A shareholder owning more than 10% of the company. Must report trades, but usually a weaker signal than an officer or director. (SEC Form 4).
Cluster buy signal: Multiple insiders at the same company buying around the same time — often a stronger signal than a single buy. 2 different insiders made open-market purchases in the last 365 days, totalling $2.6M.
Net shares · 365d
+46.3K
53.5K buy · 7.2K sell
Net value · 365d
$2.2M
$2.6M in · $385.6K out
Sentiment · 365d
Net buying
87% buying · 13% selling
Open-market trades · 365d
12
53.5K buy · 7.2K sell
Net buy / sell volume
Not enough data to chart yet.
Tap or hover the chart for daily net volume. Green = net buying, red = net selling.
All transactions
-
Sell·S
Marc E Binda KEY
CFO & Treasurer · 10b5-1
$108.0K
2.0K sh · $54.00
Own -1%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$53.0K
1.1K sh · $49.68
Own -0%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$164.1K
3.5K sh · $46.74
Own +1%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$183.5K
4.0K sh · $45.99
Own +1%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$70.2K
1.6K sh · $43.70
Own +0%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$163.9K
3.8K sh · $42.76
Own +1%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$86.4K
2.1K sh · $41.89
Own +0%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$410.2K
10.0K sh · $41.02
Own +2%
-
Buy·P
EVP - CTO
$143.5K
3.5K sh · $41.00
Own +12%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$43.3K
1.1K sh · $40.51
Own -0%
-
Sell·S
EVP - Cap Market & Co-Lead -LS · 10b5-1
$25.8K
536 sh · $48.20
Own -1%
-
Grant·A
Director
$0
129 sh
Own +1%
-
Grant·A
Director
$0
407 sh
Own +2%
-
Grant·A
Director
$0
145 sh
Own +1%
-
Grant·A
Director
$0
343 sh
Own +1%
-
Grant·A
Director
$0
112 sh
Own +1%
-
Grant·A
EVP - CTO
$0
10.8K sh
Own +57%
-
Grant·A
EVP - RMD
$0
43.1K sh
Own +78%
-
Grant·A
EVP - Co-RMD
$0
11.8K sh
Own +29%
-
Grant·A
EVP - Cap Market & Co-Lead -LS
$0
21.5K sh
Own +79%
-
Grant·A
EVP - Co-Lead - Life Science
$0
21.5K sh
Own +46%
-
Grant·A
Regional Market Director
$0
10.8K sh
Own +57%
-
Grant·A
Regional Market Director
$0
12.9K sh
Own +107%
-
Grant·A
Co-Regional Market Director
$0
21.5K sh
Own +69%
-
Grant·A
EVP - Business Operations
$0
16.2K sh
Own +41%
-
Grant·A
EVP - Accounting
$0
21.5K sh
Own +46%
-
Grant·A
EVP - Talent Management
$0
16.2K sh
Own +71%
-
Grant·A
General Counsel & Secretary
$0
21.5K sh
Own +42%
-
Grant·A
EVP, Real Estate Legal Affairs
$0
16.2K sh
Own +31%
-
Grant·A
Co-Chief Operating Officer
$0
32.3K sh
Own +48%
-
Grant·A
Director
$0
915 sh
Own +4%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$49.5K
1.1K sh · $46.42
Own -0%
-
Grant·A
Chief Accounting Officer
$0
32.3K sh
Own +40%
-
Other·F
EVP - CTO
$33.5K
693 sh · $48.41
Own -4%
-
Other·F
EVP - RMD
$91.8K
1.9K sh · $48.41
Own -3%
-
Other·F
EVP - Co-RMD
$33.3K
688 sh · $48.41
Own -2%
-
Other·F
EVP - Cap Market & Co-Lead -LS
$41.5K
858 sh · $48.41
Own -3%
-
Other·F
EVP - Co-Lead - Life Science
$33.3K
688 sh · $48.41
Own -1%
-
Other·F
Regional Market Director
$22.1K
456 sh · $48.41
Own -2%
-
Other·F
Regional Market Director
$28.4K
586 sh · $48.41
Own -5%
-
Other·F
Co-Regional Market Director
$38.6K
797 sh · $48.41
Own -2%
-
Other·F
John Hart Cole KEY
Co-President, & Co-RMD
$62.4K
1.3K sh · $48.41
Own -1%
-
Other·F
EVP - Business Operations
$57.1K
1.2K sh · $48.41
Own -3%
-
Other·F
EVP - Accounting
$49.6K
1.0K sh · $48.41
Own -2%
-
Other·F
EVP - Talent Management
$52.6K
1.1K sh · $48.41
Own -5%
-
Other·F
General Counsel & Secretary
$53.4K
1.1K sh · $48.41
Own -2%
-
Other·F
EVP, Real Estate Legal Affairs
$49.2K
1.0K sh · $48.41
Own -2%
-
Other·F
Co-Chief Operating Officer
$98.2K
2.0K sh · $48.41
Own -3%
-
Sell·S
EVP - Co-RMD
$251.8K
4.7K sh · $53.55
Own -10%
-
Other·F
EVP - Co-RMD
$413.5K
7.7K sh · $54.04
Own -14%
-
Grant·A
EVP - Co-RMD
$0
20.3K sh
Own +60%
-
Other·F
Regional Market Director
$20.6K
382 sh · $54.04
Own -3%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$57.8K
1.1K sh · $54.04
Own -0%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$418.2K
7.7K sh · $54.31
Own +1%
-
Buy·P
Joel S Marcus KEY
Executive Chairman
$929.7K
17.3K sh · $53.74
Own +3%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$58.3K
1.1K sh · $54.64
Own -0%
-
Other·F
EVP - CTO
$7.9K
133 sh · $59.69
Own -1%
-
Other·D
EVP - CTO
$0
1.1K sh
Own -5%
-
Other·D
Peter M Moglia KEY
Chief Executive Officer
$0
11.2K sh
Own -3%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$71.7K
1.2K sh · $59.69
Own -0%
-
Other·D
Joel S Marcus KEY
Executive Chairman
$0
35.1K sh
Own -6%
-
Other·F
EVP - Co-RMD
$5.7K
95 sh · $59.69
Own -0%
-
Other·D
EVP - Co-RMD
$0
1.1K sh
Own -3%
-
Other·F
EVP - Cap Market & Co-Lead -LS
$5.7K
95 sh · $59.69
Own -0%
-
Other·D
EVP - Cap Market & Co-Lead -LS
$0
1.1K sh
Own -4%
-
Other·F
EVP - Co-Lead - Life Science
$4.5K
75 sh · $59.69
Own -0%
-
Other·D
EVP - Co-Lead - Life Science
$0
1.1K sh
Own -2%
-
Other·F
Co-Regional Market Director
$8.9K
149 sh · $59.69
Own -0%
-
Other·D
Co-Regional Market Director
$0
1.8K sh
Own -5%
-
Other·F
John Hart Cole KEY
Co-President, & Co-RMD
$10.5K
176 sh · $59.69
Own -0%
-
Other·D
John Hart Cole KEY
Co-President, & Co-RMD
$0
1.8K sh
Own -2%
-
Other·F
EVP - Business Operations
$8.4K
140 sh · $59.69
Own -0%
-
Other·D
EVP - Business Operations
$0
1.1K sh
Own -3%
-
Other·F
EVP - Accounting
$5.7K
95 sh · $59.69
Own -0%
-
Other·D
EVP - Accounting
$0
1.1K sh
Own -2%
-
Other·F
EVP - Talent Management
$7.8K
130 sh · $59.69
Own -1%
-
Other·D
EVP - Talent Management
$0
1.1K sh
Own -4%
-
Other·F
Hunter Kass KEY
Co-President and RMD
$44.6K
748 sh · $59.69
Own -0%
-
Other·D
Hunter Kass KEY
Co-President and RMD
$0
11.2K sh
Own -4%
-
Other·F
General Counsel & Secretary
$8.9K
149 sh · $59.69
Own -0%
-
Other·D
General Counsel & Secretary
$0
1.8K sh
Own -3%
-
Other·F
EVP, Real Estate Legal Affairs
$8.9K
149 sh · $59.69
Own -0%
-
Other·D
EVP, Real Estate Legal Affairs
$0
1.8K sh
Own -3%
-
Other·F
Co-Chief Operating Officer
$12.8K
214 sh · $59.69
Own -0%
-
Other·D
Co-Chief Operating Officer
$0
1.8K sh
Own -2%
-
Other·F
Marc E Binda KEY
CFO & Treasurer
$16.9K
283 sh · $59.69
Own -0%
-
Other·D
Marc E Binda KEY
CFO & Treasurer
$0
3.3K sh
Own -2%
-
Other·F
Co-Chief Operating Officer
$16.2K
271 sh · $59.69
Own -0%
-
Other·D
Co-Chief Operating Officer
$0
3.3K sh
Own -2%
-
Other·F
Chief Accounting Officer
$16.9K
283 sh · $59.69
Own -0%
-
Other·D
Chief Accounting Officer
$0
3.3K sh
Own -4%
-
Other·F
EVP - RMD
$12.5K
210 sh · $59.69
Own -0%
-
Other·D
EVP - RMD
$0
1.8K sh
Own -3%
-
Other·D
Peter M Moglia KEY
Chief Executive Officer
$0
24.0K sh
Own -6%
-
Other·D
Joel S Marcus KEY
Executive Chairman
$0
14.7K sh
Own -2%
-
Grant·A
Director
$0
3.5K sh
Own +349%
-
Grant·A
Director
$0
3.6K sh
Own +42%
-
Grant·A
Director
$0
3.8K sh
Own +17%
-
Grant·A
Director
$0
3.6K sh
Own +37%
-
Grant·A
Director
$0
3.7K sh
Own +14%
-
Grant·A
Director
$0
3.5K sh
Own +47%
-
Grant·A
Director
$0
3.6K sh
Own +20%
-
Grant·A
Peter M Moglia KEY
Chief Executive Officer
$0
127.4K sh
Own +44%
-
Grant·A
Joel S Marcus KEY
Executive Chairman
$0
100.1K sh
Own +21%
-
Grant·A
EVP, Capital Markets & Co-RMD
$0
7.2K sh
Own +7%
-
Grant·A
EVP - Business Operations
$0
1.6K sh
Own +4%
-
Grant·A
EVP - Accounting
$0
3.1K sh
Own +7%
-
Grant·A
EVP - Talent Management
$0
1.6K sh
Own +7%
-
Grant·A
Hunter Kass KEY
Co-President and RMD
$0
8.7K sh
Own +4%
-
Grant·A
General Counsel & Secretary
$0
1.6K sh
Own +3%
-
Grant·A
EVP, Real Estate Legal Affairs
$0
1.6K sh
Own +3%
-
Grant·A
Co-Chief Operating Officer
$0
3.1K sh
Own +5%
-
Grant·A
Marc E Binda KEY
CFO & Treasurer
$0
8.7K sh
Own +5%
-
Grant·A
Co-Chief Operating Officer
$0
3.1K sh
Own +2%
-
Grant·A
Peter M Moglia KEY
Chief Executive Officer
$0
10.2K sh
Own +4%
-
Grant·A
Chief Accounting Officer
$0
3.1K sh
Own +4%
-
Grant·A
Joel S Marcus KEY
Executive Chairman
$0
31.3K sh
Own +7%
-
Grant·A
EVP, Capital Markets & Co-RMD
$0
51.1K sh
Own +95%
-
Grant·A
Hunter Kass KEY
Co-President and RMD
$0
93.1K sh
Own +63%
-
Grant·A
Marc E Binda KEY
CFO & Treasurer
$0
81.7K sh
Own +79%
-
Grant·A
Co-Chief Operating Officer
$0
29.0K sh
Own +22%
-
Grant·A
Director
$0
869 sh
Own +4%
-
Grant·A
Director
$0
562 sh
Own +2%
-
Other·F
Peter M Moglia KEY
Chief Executive Officer
$36.4K
744 sh · $48.94
Own -0%
| Date▾ | Insider | Type | Shares | Value |
|---|---|---|---|---|
| Jun 9, 2026 | Marc E Binda KEY 10b5-1 | Sell S | 2.0K | $108.0K |
| May 29, 2026 | Peter M Moglia KEY | Other F | 1.1K | $53.0K |
| May 6, 2026 | Joel S Marcus KEY | Buy P | 3.5K | $164.1K |
| May 6, 2026 | Joel S Marcus KEY | Buy P | 4.0K | $183.5K |
| May 5, 2026 | Joel S Marcus KEY | Buy P | 1.6K | $70.2K |
| May 5, 2026 | Joel S Marcus KEY | Buy P | 3.8K | $163.9K |
| May 5, 2026 | Joel S Marcus KEY | Buy P | 2.1K | $86.4K |
| May 4, 2026 | Joel S Marcus KEY | Buy P | 10.0K | $410.2K |
| Apr 30, 2026 | Gregory Calvin Thomas | Buy P | 3.5K | $143.5K |
| Apr 30, 2026 | Peter M Moglia KEY | Other F | 1.1K | $43.3K |
| Apr 17, 2026 | Hallie E. Kuhn 10b5-1 | Sell S | 536 | $25.8K |
| Apr 15, 2026 | Sheila K. Mcgrath | Grant A | 129 | $0 |
| Apr 15, 2026 | Michael A Woronoff | Grant A | 407 | $0 |
| Apr 15, 2026 | James P Cain | Grant A | 145 | $0 |
| Apr 15, 2026 | Steve Hash | Grant A | 343 | $0 |
| Apr 15, 2026 | Richard Hunter Klein | Grant A | 112 | $0 |
| Mar 31, 2026 | Gregory Calvin Thomas | Grant A | 10.8K | $0 |
| Mar 31, 2026 | Jesse J. Nelson | Grant A | 43.1K | $0 |
| Mar 31, 2026 | Bret E. Gossett | Grant A | 11.8K | $0 |
| Mar 31, 2026 | Hallie E. Kuhn | Grant A | 21.5K | $0 |
| Mar 31, 2026 | Jenna R. Foger | Grant A | 21.5K | $0 |
| Mar 31, 2026 | Blake L. Stevens | Grant A | 10.8K | $0 |
| Mar 31, 2026 | Joshua J. Mitchell | Grant A | 12.9K | $0 |
| Mar 31, 2026 | Michael E. Boss | Grant A | 21.5K | $0 |
| Mar 31, 2026 | Kristina Fukuzaki-Carlson | Grant A | 16.2K | $0 |
| Mar 31, 2026 | Orraparn C. Lee | Grant A | 21.5K | $0 |
| Mar 31, 2026 | Madeleine Thorp Alsbrook | Grant A | 16.2K | $0 |
| Mar 31, 2026 | Jackie B. Clem | Grant A | 21.5K | $0 |
| Mar 31, 2026 | Gary D. Dean | Grant A | 16.2K | $0 |
| Mar 31, 2026 | Joseph Hakman | Grant A | 32.3K | $0 |
| Mar 31, 2026 | Michael A Woronoff | Grant A | 915 | $0 |
| Mar 31, 2026 | Peter M Moglia KEY | Other F | 1.1K | $49.5K |
| Mar 31, 2026 | Andres Gavinet | Grant A | 32.3K | $0 |
| Mar 13, 2026 | Gregory Calvin Thomas | Other F | 693 | $33.5K |
| Mar 13, 2026 | Jesse J. Nelson | Other F | 1.9K | $91.8K |
| Mar 13, 2026 | Bret E. Gossett | Other F | 688 | $33.3K |
| Mar 13, 2026 | Hallie E. Kuhn | Other F | 858 | $41.5K |
| Mar 13, 2026 | Jenna R. Foger | Other F | 688 | $33.3K |
| Mar 13, 2026 | Blake L. Stevens | Other F | 456 | $22.1K |
| Mar 13, 2026 | Joshua J. Mitchell | Other F | 586 | $28.4K |
| Mar 13, 2026 | Michael E. Boss | Other F | 797 | $38.6K |
| Mar 13, 2026 | John Hart Cole KEY | Other F | 1.3K | $62.4K |
| Mar 13, 2026 | Kristina Fukuzaki-Carlson | Other F | 1.2K | $57.1K |
| Mar 13, 2026 | Orraparn C. Lee | Other F | 1.0K | $49.6K |
| Mar 13, 2026 | Madeleine Thorp Alsbrook | Other F | 1.1K | $52.6K |
| Mar 13, 2026 | Jackie B. Clem | Other F | 1.1K | $53.4K |
| Mar 13, 2026 | Gary D. Dean | Other F | 1.0K | $49.2K |
| Mar 13, 2026 | Joseph Hakman | Other F | 2.0K | $98.2K |
| Feb 27, 2026 | Bret E. Gossett | Sell S | 4.7K | $251.8K |
| Feb 27, 2026 | Bret E. Gossett | Other F | 7.7K | $413.5K |
| Feb 27, 2026 | Bret E. Gossett | Grant A | 20.3K | $0 |
| Feb 27, 2026 | Joshua J. Mitchell | Other F | 382 | $20.6K |
| Feb 27, 2026 | Peter M Moglia KEY | Other F | 1.1K | $57.8K |
| Feb 12, 2026 | Joel S Marcus KEY | Buy P | 7.7K | $418.2K |
| Feb 12, 2026 | Joel S Marcus KEY | Buy P | 17.3K | $929.7K |
| Jan 30, 2026 | Peter M Moglia KEY | Other F | 1.1K | $58.3K |
| Jan 23, 2026 | Gregory Calvin Thomas | Other F | 133 | $7.9K |
| Jan 23, 2026 | Gregory Calvin Thomas | Other D | 1.1K | $0 |
| Jan 23, 2026 | Peter M Moglia KEY | Other D | 11.2K | $0 |
| Jan 23, 2026 | Peter M Moglia KEY | Other F | 1.2K | $71.7K |
| Jan 23, 2026 | Joel S Marcus KEY | Other D | 35.1K | $0 |
| Jan 23, 2026 | Bret E. Gossett | Other F | 95 | $5.7K |
| Jan 23, 2026 | Bret E. Gossett | Other D | 1.1K | $0 |
| Jan 23, 2026 | Hallie E. Kuhn | Other F | 95 | $5.7K |
| Jan 23, 2026 | Hallie E. Kuhn | Other D | 1.1K | $0 |
| Jan 23, 2026 | Jenna R. Foger | Other F | 75 | $4.5K |
| Jan 23, 2026 | Jenna R. Foger | Other D | 1.1K | $0 |
| Jan 23, 2026 | Michael E. Boss | Other F | 149 | $8.9K |
| Jan 23, 2026 | Michael E. Boss | Other D | 1.8K | $0 |
| Jan 23, 2026 | John Hart Cole KEY | Other F | 176 | $10.5K |
| Jan 23, 2026 | John Hart Cole KEY | Other D | 1.8K | $0 |
| Jan 23, 2026 | Kristina Fukuzaki-Carlson | Other F | 140 | $8.4K |
| Jan 23, 2026 | Kristina Fukuzaki-Carlson | Other D | 1.1K | $0 |
| Jan 23, 2026 | Orraparn C. Lee | Other F | 95 | $5.7K |
| Jan 23, 2026 | Orraparn C. Lee | Other D | 1.1K | $0 |
| Jan 23, 2026 | Madeleine Thorp Alsbrook | Other F | 130 | $7.8K |
| Jan 23, 2026 | Madeleine Thorp Alsbrook | Other D | 1.1K | $0 |
| Jan 23, 2026 | Hunter Kass KEY | Other F | 748 | $44.6K |
| Jan 23, 2026 | Hunter Kass KEY | Other D | 11.2K | $0 |
| Jan 23, 2026 | Jackie B. Clem | Other F | 149 | $8.9K |
| Jan 23, 2026 | Jackie B. Clem | Other D | 1.8K | $0 |
| Jan 23, 2026 | Gary D. Dean | Other F | 149 | $8.9K |
| Jan 23, 2026 | Gary D. Dean | Other D | 1.8K | $0 |
| Jan 23, 2026 | Joseph Hakman | Other F | 214 | $12.8K |
| Jan 23, 2026 | Joseph Hakman | Other D | 1.8K | $0 |
| Jan 23, 2026 | Marc E Binda KEY | Other F | 283 | $16.9K |
| Jan 23, 2026 | Marc E Binda KEY | Other D | 3.3K | $0 |
| Jan 23, 2026 | Lawrence J Diamond | Other F | 271 | $16.2K |
| Jan 23, 2026 | Lawrence J Diamond | Other D | 3.3K | $0 |
| Jan 23, 2026 | Andres Gavinet | Other F | 283 | $16.9K |
| Jan 23, 2026 | Andres Gavinet | Other D | 3.3K | $0 |
| Jan 23, 2026 | Jesse J. Nelson | Other F | 210 | $12.5K |
| Jan 23, 2026 | Jesse J. Nelson | Other D | 1.8K | $0 |
| Jan 22, 2026 | Peter M Moglia KEY | Other D | 24.0K | $0 |
| Jan 22, 2026 | Joel S Marcus KEY | Other D | 14.7K | $0 |
| Jan 15, 2026 | Claire Aldridge | Grant A | 3.5K | $0 |
| Jan 15, 2026 | Sheila K. Mcgrath | Grant A | 3.6K | $0 |
| Jan 15, 2026 | Michael A Woronoff | Grant A | 3.8K | $0 |
| Jan 15, 2026 | James P Cain | Grant A | 3.6K | $0 |
| Jan 15, 2026 | Steve Hash | Grant A | 3.7K | $0 |
| Jan 15, 2026 | Maria C Freire | Grant A | 3.5K | $0 |
| Jan 15, 2026 | Richard Hunter Klein | Grant A | 3.6K | $0 |
| Jan 9, 2026 | Peter M Moglia KEY | Grant A | 127.4K | $0 |
| Jan 9, 2026 | Joel S Marcus KEY | Grant A | 100.1K | $0 |
| Jan 2, 2026 | John Hart Cole | Grant A | 7.2K | $0 |
| Jan 2, 2026 | Kristina Fukuzaki-Carlson | Grant A | 1.6K | $0 |
| Jan 2, 2026 | Orraparn C. Lee | Grant A | 3.1K | $0 |
| Jan 2, 2026 | Madeleine Thorp Alsbrook | Grant A | 1.6K | $0 |
| Jan 2, 2026 | Hunter Kass KEY | Grant A | 8.7K | $0 |
| Jan 2, 2026 | Jackie B. Clem | Grant A | 1.6K | $0 |
| Jan 2, 2026 | Gary D. Dean | Grant A | 1.6K | $0 |
| Jan 2, 2026 | Joseph Hakman | Grant A | 3.1K | $0 |
| Jan 2, 2026 | Marc E Binda KEY | Grant A | 8.7K | $0 |
| Jan 2, 2026 | Lawrence J Diamond | Grant A | 3.1K | $0 |
| Jan 2, 2026 | Peter M Moglia KEY | Grant A | 10.2K | $0 |
| Jan 2, 2026 | Andres Gavinet | Grant A | 3.1K | $0 |
| Jan 2, 2026 | Joel S Marcus KEY | Grant A | 31.3K | $0 |
| Dec 31, 2025 | John Hart Cole | Grant A | 51.1K | $0 |
| Dec 31, 2025 | Hunter Kass KEY | Grant A | 93.1K | $0 |
| Dec 31, 2025 | Marc E Binda KEY | Grant A | 81.7K | $0 |
| Dec 31, 2025 | Lawrence J Diamond | Grant A | 29.0K | $0 |
| Dec 31, 2025 | Michael A Woronoff | Grant A | 869 | $0 |
| Dec 31, 2025 | Steve Hash | Grant A | 562 | $0 |
| Dec 31, 2025 | Peter M Moglia KEY | Other F | 744 | $36.4K |
About ARE insider trading
This page tracks insider transactions for ALEXANDRIA REAL ESTATE EQUITIES, INC. (ARE) reported to the U.S. Securities and Exchange Commission on Form 4. Corporate insiders — directors, executive officers and beneficial owners of more than 10% of the stock — must disclose their trades within two business days. Open-market purchases (code P) and sales (code S) made at the insider's discretion are the most-watched opportunistic signals, while awards (A), option exercises (M) and tax-withholding (F) reflect compensation rather than conviction. Trades marked 10b5-1 were made under a pre-arranged plan and are considered routine. A cluster buy — several insiders buying within a short window — is historically a stronger bullish indicator than any single trade.