William J. Schlacks - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 4, 2026
William J. Schlacks has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $1.07M.
Profile
William J. Schlacks serves as Co-Founder & President of EquipmentShare.com Inc (EQPT). Schlacks has reported 2 insider filings with the SEC since 2026. The most recent filing was in June 2026.
| Role | Co-Founder & President, Director |
|---|---|
| Notability | 40/100 |
Board memberships
- EquipmentShare.com Inc
Reported roles
- Co-Founder & President
Awards & honors
- Co-founded EquipmentShare, a construction technology and equipment rental provider
- Led strategic direction as President and Director since inception
- Contributed to the deployment of EquipmentShare's platform and services
Trading Pattern
InsiderAlpha's records for William J. Schlacks go back to 2026: 2 primary Form 4 filings, an average of 2.0 per year. The typical open-market purchase is $1.07M (1 buy totaling $1.07M). The largest single buy on record is $1.07M of EQPT in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role William J. Schlacks has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Co-Founder & President, Director at EquipmentShare.com Inc (EQPT) - 2 filings, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-17 | EQPT | EquipmentShare.com Inc | P - Open-market purchase | 50.0K | $21.47 | $1.07M |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 714.3K | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 10.78M | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 2.81M | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 2.81M | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | D - Derivative transaction | 18.78M | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 28.4K | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 18.76M | - | |
| 2026-01-27 | EQPT | EquipmentShare.com Inc | J - Other acquisition / disposition | 18.76M | - |
Companies - Last 90 Days
- EquipmentShare.com Inc (EQPT) - 1 filing, last 2026-06-17
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies William J. Schlacks has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Jabbok Schlacks - $1.06M of EQPT open-market activity in the last 12 months
- W. Bryan Hill - $499K of EQPT open-market activity in the last 12 months
- Naveen Bhatia - $242K of EQPT open-market activity in the last 12 months
- David Marquardt - $105K of EQPT open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Gregg Williams
- Stephen T. Wills
- WINMILL CO. INC
- Caroline Young
- Jeffrey Yu
- George Raymond Zage III
- Mahkam Zanganeh
- A.L. Sarroff Fund, LLC
Frequently Asked Questions
Who is William J. Schlacks?
William J. Schlacks serves as Co-Founder & President of EquipmentShare.com Inc (EQPT). Schlacks has reported 2 insider filings with the SEC since 2026. The most recent filing was in June 2026.…
How many SEC Form 4 filings has William J. Schlacks submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has William J. Schlacks been buying or selling stock?
Recorded transactions: 1 open-market purchase ($1.07M) and 0 open-market sales across all tracked filings.
Where can I see all of William J. Schlacks's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live William J. Schlacks profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.