Tuszik Oliver
Officer · CSCO
As of 2026-09-27, Tuszik Oliver has 32 Form 4 transactions on record across 1 company — 23 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in September in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $24.9M
- Indirect $0
| CSCO | direct | 232,950 sh | $24.9M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | CSCO | Sale | 680 @ $110.18 | $75K | −0.4% of holding | 163,337 | Form 4 |
| 2026-08-14 | CSCO | Sale | 2,760 @ $112.46 | $310K | −1.6% of holding | 165,276 | Form 4 |
| 2026-06-11 | CSCO | Sale | 1,407 @ $121.77 | $171K | −0.8% of holding | 172,827 | Form 4 |
| 2026-06-11 | CSCO | Sale | 700 @ $120.51 | $84K | −0.4% of holding | 174,234 | Form 4 |
| 2026-06-11 | CSCO | Sale | 400 @ $119.59 | $48K | −0.2% of holding | 174,934 | Form 4 |
| 2026-06-11 | CSCO | Sale | 100 @ $122.44 | $12K | −0.1% of holding | 172,727 | Form 4 |
| 2026-05-15 | CSCO | Sale | 2,761 @ $114.61 | $316K | −1.5% of holding | 180,877 | Form 4 |
| 2026-03-18 | CSCO | Sale | 3,132 @ $79.74 | $250K | −1.6% of holding | 188,613 | Form 4 |
| 2025-11-20 | CSCO | Sale | 13,353 @ $79.21 | $1.1M | −6.3% of holding | 197,040 | Form 4 |
| 2025-11-17 | CSCO | Sale | 15 @ $77.98 | $1K | −0.0% of holding | 210,393 | Form 4 |
| 2025-11-14 | CSCO | Sale | 5,425 @ $76.56 | $415K | −2.5% of holding | 210,408 | Form 4 |
| 2025-09-19 | CSCO | Sale | 14,200 @ $67.84 | $963K | −6.6% of holding | 202,181 | Form 4 |
| 2025-09-19 | CSCO | Sale | 3,326 @ $68.42 | $228K | −1.6% of holding | 198,855 | Form 4 |
| 2025-05-28 | CSCO | Sale | 15,000 @ $63.53 | $953K | −10.2% of holding | 131,676 | Form 4 |
18 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-09-16 | CSCO | Award / grant | 69,613 | 232,950 | Form 4 |
| 2026-09-10 | CSCO | Withheld for tax | 1,260 | 164,017 | Form 4 |
| 2026-08-10 | CSCO | Withheld for tax | 3,146 | 168,036 | Form 4 |
| 2026-07-10 | CSCO | Withheld for tax | 2,259 | 170,876 | Form 4 |
| 2026-06-10 | CSCO | Withheld for tax | 5,543 | 175,334 | Form 4 |
| 2026-05-10 | CSCO | Withheld for tax | 3,146 | 183,638 | Form 4 |
| 2026-04-10 | CSCO | Withheld for tax | 2,260 | 186,353 | Form 4 |
| 2026-02-10 | CSCO | Withheld for tax | 3,695 | 191,745 | Form 4 |
| 2026-01-10 | CSCO | Withheld for tax | 2,108 | 194,932 | Form 4 |
| 2025-11-10 | CSCO | Withheld for tax | 40,524 | 215,833 | Form 4 |
| 2025-11-10 | CSCO | Award / grant | 59,084 | 256,357 | Form 4 |
| 2025-10-10 | CSCO | Withheld for tax | 2,109 | 196,746 | Form 4 |
| 2025-09-16 | CSCO | Award / grant | 59,764 | 216,381 | Form 4 |
| 2025-08-10 | CSCO | Withheld for tax | 4,612 | 156,616 | Form 4 |
| 2025-07-10 | CSCO | Withheld for tax | 2,109 | 161,044 | Form 4 |
| 2025-06-05 | CSCO | Award / grant | 30,951 | 162,627 | Form 4 |
| 2025-05-27 | CSCO | Withheld for tax | 7,448 | 146,676 | Form 4 |
| 2025-05-10 | CSCO | Withheld for tax | 3,771 | 130,991 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.