William Joseph Brennan
William Joseph Brennan: Pres & Chief Executive Officer · Director at Credo. What William Joseph Brennan holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Credo (CRDO)
William Joseph Brennan holds 2.1M Credo shares (1.1% of the company), worth about $442.3M at the last price, according to the Form 4 of Sep 14, 2026.
- Shares held: 1.8M (0.93%), $365.8M — Held through trusts (The Brennan Family Trust, DTD 09/06/2002, William Brennan 2026 GRAT, Laurie Brennan 2026 GRAT).
- Shares held: 366,480 (0.19%), $76.6M — Held in their own name.
- Share units: 150,000 (0.08%), $31.3M — Credo promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Credo (CRDO) — Form 4 of Sep 14, 2026 (Pres & Chief Executive Officer): open-market sale of 3,984 at $150.39; open-market sale of 4,675 at $151.54; 2.1M shares after 0001628280-26-062295
- Credo (CRDO) — Form 4 of Jul 13, 2026 (Pres & Chief Executive Officer): gift of 75,000; gift of 75,000; 2.1M shares after 0001628280-26-048329
- Credo (CRDO) — Form 4 of Jul 5, 2026 (Pres & Chief Executive Officer): shares withheld for tax of 6,149 at $241.91; 2.1M shares after 0001628280-26-047472
- Credo (CRDO) — Form 4 of Jul 1, 2026 (Pres & Chief Executive Officer): option exercise or conversion of 50,000; shares withheld for tax of 19,675 at $271.95; 2.1M shares after 0001628280-26-046870
- Credo (CRDO) — Form 4 of Jun 15, 2026 (Pres & Chief Executive Officer): gift of 7,500; 2.1M shares after 0001628280-26-043872
- Credo (CRDO) — Form 4 of Jun 10, 2026 (Pres & Chief Executive Officer): shares withheld for tax of 19,675 at $237.68; 2.1M shares after 0001628280-26-043152
- Credo (CRDO) — Form 4 of Jun 5, 2026 (Pres & Chief Executive Officer): open-market sale of 5,713 at $206.40; open-market sale of 2,231 at $207.47; 2.1M shares after 0001628280-26-041881
- Credo (CRDO) — Form 4 of May 23, 2026 (Pres & Chief Executive Officer): grant or award of 200,000; 2.2M shares after 0001628280-26-038275
- Credo (CRDO) — Form 4 of Apr 15, 2026 (Pres & Chief Executive Officer): gift of 7,500; 2.0M shares after 0001628280-26-025546
- Credo (CRDO) — Form 4/A of Apr 5, 2026 (Pres & Chief Executive Officer): shares withheld for tax of 6,149 at $101.45; shares withheld for tax of 6,149 at $101.45; 2.0M shares after 0001628280-26-024293
- Credo (CRDO) — Form 4 of Apr 5, 2026 (Pres & Chief Executive Officer): open-market sale of 6,149 at $101.45; open-market sale of 6,149 at $101.45; 2.0M shares after 0001628280-26-023886
- Credo (CRDO) — Form 4 of Mar 11, 2026 (Pres & Chief Executive Officer): open-market sale of 288 at $113.88; open-market sale of 2,264 at $115.08; 2.0M shares after 0001628280-26-017679
- Credo (CRDO) — Form 4 of Jan 29, 2026 (Pres & Chief Executive Officer): open-market sale of 1,171 at $123.76; open-market sale of 1,094 at $124.85; 2.1M shares after 0001628280-26-004628
- Credo (CRDO) — Form 4 of Jan 8, 2026 (Pres & Chief Executive Officer): open-market sale of 172 at $125.69; open-market sale of 188 at $126.38; 2.2M shares after 0001628280-26-001601
- Credo (CRDO) — Form 4 of Jan 5, 2026 (Pres & Chief Executive Officer): shares withheld for tax of 5,169 at $143.22; shares withheld for tax of 6,149 at $140.24; 2.2M shares after 0001628280-26-000862
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.