State Street Corporation (STT) Insider Trading
Over the last 3 months, STT insiders made 0 open-market buys and 6 sales, a net sale of -$6.7M (SEC Form 4). Over the last 6 months, 833 institutions increased and 779 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
6
Net (3m)
-$6.7M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price +17.8%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 18, 2026 | RICHARDS MICHAEL Lofficer: EVP and Chief Admin Officer | Tax | 196 | $191.74 |
| Aug 18, 2026 | TAHIRI MOSTAPHAofficer: EVP and COO | Tax | 54 | $191.74 |
| Aug 18, 2026 | O HANLEY RONALD Pdirector, officer: Chairman, CEO and President | Option | 2,204 | — |
| Aug 4, 2026 | Schaefer Elizabethofficer: SVP, Chief Accounting Officer | Sell | 500 | $181.19 |
| Jul 28, 2026 | Hu W. Bradfordofficer: EVP and Chief Risk Officer | Sell | 9,758 | $184.52 |
| Jul 23, 2026 | O HANLEY RONALD Pdirector, officer: Chairman, CEO and President | Sell | 14,553 | $184.17 |
| Jul 23, 2026 | Horgan Kathryn Mofficer: Executive Vice President | Sell | 5,523 | $184.17 |
| Jun 15, 2026 | Horgan Kathryn Mofficer: Executive Vice President | Sell | 5,500 | $162.78 |
| Jun 9, 2026 | RICHARDS MICHAEL Lofficer: EVP and Chief Admin Officer | Sell | 1,500 | $162.14 |
| May 28, 2026 | Hu W. Bradfordofficer: EVP and Chief Risk Officer | Sell | 9,212 | $155.35 |
| May 28, 2026 | O HANLEY RONALD Pdirector, officer: Chairman, CEO and President | Sell | 14,553 | $155.35 |
| May 22, 2026 | Portalatin Julio Adirector | Grant | 1,526 | — |
| May 22, 2026 | Meaney William Ldirector | Grant | 1,526 | — |
| May 22, 2026 | Rhea John Bdirector | Grant | 2,533 | — |
| May 22, 2026 | MATHEW SARAdirector | Grant | 1,526 | — |
| May 22, 2026 | Fawcett Amelia C.director | Grant | 1,526 | — |
| May 22, 2026 | Halliday Patriciadirector | Grant | 1,526 | — |
| May 22, 2026 | Gordon Susan M.director | Grant | 1,526 | — |
| May 22, 2026 | Porter Brian J.director | Grant | 1,526 | — |
| May 22, 2026 | O'Sullivan Seandirector | Grant | 1,526 | — |
| May 22, 2026 | Chandoha Marie Adirector | Grant | 1,526 | — |
| May 22, 2026 | Freda William Cdirector | Grant | 1,526 | — |
| May 22, 2026 | DeMaio Donnadirector | Grant | 1,526 | — |
| May 19, 2026 | Schaefer Elizabethofficer: SVP, Chief Accounting Officer | Tax | 191 | $152.85 |
| May 19, 2026 | O HANLEY RONALD Pdirector, officer: Chairman, CEO and President | Option | 2,204 | — |
| May 19, 2026 | TAHIRI MOSTAPHAofficer: EVP and COO | Tax | 91 | $152.85 |
| May 19, 2026 | RICHARDS MICHAEL Lofficer: EVP and Chief Admin Officer | Tax | 195 | $152.85 |
| May 15, 2026 | Schaefer Elizabethofficer: SVP, Chief Accounting Officer | Sell | 500 | $150.87 |
| Apr 24, 2026 | RICHARDS MICHAEL Lofficer: EVP and Chief Admin Officer | Sell | 3,000 | $153.89 |
| Apr 24, 2026 | TAHIRI MOSTAPHAofficer: EVP and COO | Sell | 9,611 | $152.93 |
Source: STT SEC Form 4 filings, latest Aug 18, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their STT positions over the last 6 months (SEC Form 13F).
Increased
833
New positions
350
Reduced
779
Sold out
71
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 24.4M | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 24.0M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 17.7M | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 17.6M | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 16.1M | May 8, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Reduced | 14.7M | Aug 13, 2026 |
| FMR LLC | Increased | 13.9M | Aug 13, 2026 |
| STATE STREET CORP | Increased | 13.5M | Aug 7, 2026 |
| STATE STREET CORP | Increased | 13.4M | May 15, 2026 |
| FMR LLC | Reduced | 11.5M | May 15, 2026 |
| REGENTS OF THE UNIVERSITY OF CALIFORNIA | Increased | 10.1M | May 28, 2026 |
| REGENTS OF THE UNIVERSITY OF CALIFORNIA | Reduced | 9.9M | Aug 11, 2026 |
| INVESCO LTD. | Reduced | 7.8M | May 12, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 7.7M | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | 7.4M | Aug 12, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.