STATE STREET CORP Insider Trading Activity
Every SEC Form 4 insider transaction reported for STATE STREET CORP (STT), sourced directly from SEC EDGAR and updated as new filings are accepted.
By Trabud · Insider-trading data from SEC EDGAR
Latest filing:
Compiled automatically from SEC EDGAR Form 4 filings and refreshed daily. Figures count purchases (code P) and sales (code S) only — not grants, option exercises, or gifts. How this page is built. Not investment advice.
Quick Answer
Are STT insiders buying or selling?
In the last 12 months, STATE STREET CORP insiders reported 1 open-market purchase ($312.5K) and 18 sales ($21.1M) — net selling of $20.8M. Since February 2018, Trabud has recorded 154 Form 4 filings for STT: 10 buys ($1.1M) and 144 sells ($111.6M).
Source: SEC EDGAR Form 4
What stands out
- The largest open-market purchase in the last 12 months was $312.5K by Brian J. Porter (Director) on Mar 9, 2026. SEC ↗
- The most recent open-market purchase was reported on Mar 9, 2026 (7 months ago).
Key Statistics (February 2018 – Aug 4, 2026)
Total Form 4 filings
154
SEC EDGAR
Insider filers
32
Insider buys (10)
$1.1M
Insider sells (144)
$111.6M
Insider sentiment
Net sellingNet insider flow of $110.4M in net selling since February 2018, and $20.8M in net selling over the last 12 months.
Recent STT insider transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Aug 4, 2026 | Elizabeth Schaefer | SVP, Chief Accounting Officer | Sale | 500 | $181.19 | $90.6K | SEC ↗ |
| Jul 28, 2026 | Bradford W. Hu | EVP and Chief Risk Officer | Sale | 9.8K | $184.52 | $1.8M | SEC ↗ |
| Jul 23, 2026 | Kathryn M Horgan | Executive Vice President | Sale | 5.5K | $184.17 | $1.0M | SEC ↗ |
| Jul 23, 2026 | Hanley Ronald P O | Chairman, CEO and President | Sale | 14.6K | $184.17 | $2.7M | SEC ↗ |
| Jun 15, 2026 | Kathryn M Horgan | Executive Vice President | Sale | 5.5K | $162.78 | $895.3K | SEC ↗ |
| Jun 9, 2026 | Michael L Richards | EVP and Chief Admin Officer | Sale | 1.5K | $162.14 | $243.2K | SEC ↗ |
| May 28, 2026 | Bradford W. Hu | EVP and Chief Risk Officer | Sale | 9.2K | $155.35 | $1.4M | SEC ↗ |
| May 28, 2026 | Hanley Ronald P O | Chairman, CEO and President | Sale | 14.6K | $155.35 | $2.3M | SEC ↗ |
| May 15, 2026 | Elizabeth Schaefer | SVP, Chief Accounting Officer | Sale | 500 | $150.87 | $75.4K | SEC ↗ |
| Apr 24, 2026 | Mostapha Tahiri | EVP and COO | Sale | 9.6K | $152.93 | $1.5M | SEC ↗ |
| Apr 24, 2026 | Michael L Richards | EVP and Chief Admin Officer | Sale | 3.0K | $153.89 | $461.7K | SEC ↗ |
| Mar 12, 2026 | John Plansky | Executive Vice President | Sale | 16.1K | $124.32 | $2.0M | SEC ↗ |
| Mar 9, 2026 | Brian J. Porter | Director | Purchase | 2.5K | $124.99 | $312.5K | SEC ↗ |
| Mar 4, 2026 | Hanley Ronald P O | Chairman, CEO and President | Sale | 29.1K | $125.70 | $3.7M | SEC ↗ |
| Feb 25, 2026 | Kathryn M Horgan | Executive Vice President | Sale | 5.7K | $127.10 | $721.4K | SEC ↗ |
| Feb 25, 2026 | Michael L Richards | EVP and Senior Advisor | Sale | 2.5K | $127.91 | $319.8K | SEC ↗ |
| Feb 25, 2026 | Joerg Ambrosius | Executive Vice President | Sale | 8.8K | $128.00 | $1.1M | SEC ↗ |
| Dec 2, 2025 | Kathryn M Horgan | Executive Vice President | Sale | 5.7K | $118.55 | $672.9K | SEC ↗ |
| Oct 29, 2025 | Michael L Richards | EVP and Senior Advisor | Sale | 1.5K | $117.24 | $175.9K | SEC ↗ |
| Aug 28, 2025 | Michael L Richards | EVP and Senior Advisor | Sale | 1.0K | $115.17 | $115.2K | SEC ↗ |
| Aug 25, 2025 | Hanley Ronald P O | Chairman, CEO and President | Sale | 13.3K | $112.39 | $1.5M | SEC ↗ |
| Aug 21, 2025 | Elizabeth Schaefer | SVP, Chief Accounting Officer | Sale | 1.6K | $111.07 | $175.0K | SEC ↗ |
| Aug 13, 2025 | Hanley Ronald P O | Chairman, CEO and President | Sale | 41.2K | $111.25 | $4.6M | SEC ↗ |
| Jul 24, 2025 | Michael L Richards | EVP and Senior Advisor | Sale | 990 | $109.29 | $108.2K | SEC ↗ |
| Jun 3, 2025 | Kathryn M Horgan | Executive Vice President | Sale | 11.1K | $96.61 | $1.1M | SEC ↗ |
Showing the 25 most recent of 154 Form 4 filings for STATE STREET CORP.
Most active STT insiders
- Michael L Richards20 filings
- Andrew Erickson12 filings
- Saint-Aignan Patrick de9 filings
- Andrew P Kuritzkes8 filings
- Hanley Ronald P O8 filings
Ask anything about STT insider activity
Use Trabud's AI agent to query STATE STREET CORP's Form 4 history in plain English — "Show me STT CEO purchases this year" or compare it against any other ticker.
Open the AI agentSTT insider trading FAQ
Are STATE STREET CORP insiders buying or selling?
In the last 12 months, STATE STREET CORP insiders reported 1 open-market purchase ($312.5K) and 18 sales ($21.1M) — net selling of $20.8M. Since February 2018, Trabud has recorded 154 Form 4 filings for STT: 10 buys ($1.1M) and 144 sells ($111.6M). Over the full record that is net selling of $110.4M.
How many insiders trade STT stock?
32 distinct insider filers — officers, directors, 10%+ owners, and investment groups filing jointly — have reported Form 4 transactions for STATE STREET CORP. The most recent filing was accepted on Aug 4, 2026.
Where does Trabud get STT insider trading data?
All STT insider trading data comes directly from official SEC EDGAR Form 4 filings, which corporate insiders must submit within two business days of a transaction under Section 16(a) of the Securities Exchange Act of 1934.