Comparable stake leader
Katherine S. Ngai-Pesic
SEC ownership of Silvaco Group, Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001943289.
Disclosed value leader
Katherine S. Ngai-Pesic
Comparable rows
50/50
Latest evidence
16 Jun 2026
- Public ticker
- SVCO on Nasdaq
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Katherine S. Ngai-Pesic
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Katherine S. Ngai-Pesic
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
16 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001943289
- Issuer location
- Santa Clara, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Silvaco Group, Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Katherine S. Ngai-Pesic
Disclosed value leader
Katherine S. Ngai-Pesic
Comparable rows
50/50
Latest evidence
16 Jun 2026
3/4/5
13D/G
13F
Lead comparable stake: 30%
13D/G row: Katherine S. Ngai-Pesic
Showing 1-8 of 50 holder rows.
Quick read
Katherine S. Ngai-Pesic leads the comparable SEC ownership view at 30%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Katherine S. Ngai-Pesic's linked filing trail.
Comparable ownership
Top 5
Katherine S. Ngai-Pesic
30%
Capital Research Global Investors
4.8%
Illiya I. Pesic
17%
Yelena I. Pesic
11%
Babak A. Taheri
2.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Katherine S. Ngai-Pesic |
3/4/5
13D/G
Director, 10%+ Owner
|
30%
from 13D/G
|
$103,432,744
9,176,403 shares
|
-$3,628,085 | 11 Jun 2026 |
| Capital Research Global Investors |
13D/G
|
4.8%
|
$7,300,881
1,372,346 shares
|
-$373,304 | 31 Mar 2025 |
| Illiya I. Pesic |
3/4/5
Director, 10%+ Owner
|
17%
|
$69,887,975
5,394,672 shares
|
-$850,530 | 03 Jun 2026 |
| Yelena I. Pesic |
3/4/5
Member of 10% owner group
|
11%
|
$7,170,115
3,603,073 shares
|
-$597,000 | 04 Dec 2025 |
| Babak A. Taheri |
3/4/5
Chief Executive Officer, Director
|
2.5%
|
$3,595,180
773,157 shares
|
— | 13 Aug 2025 |
| Christopher John Zegarelli |
3/4/5
Chief Financial Officer
|
1.7%
|
$2,174,752
536,976 shares
|
+$83,153 | 01 Apr 2026 |
| Walden C. Rhines |
3/4/5
Chief Executive Officer, Director
|
0.92%
|
$2,044,937
288,833 shares
|
+$214,648 | 22 May 2026 |
| Anthony K.k. Ngai |
3/4/5
Director
|
0.37%
|
$1,443,450
115,476 shares
|
+$127,898 | 16 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$4,714,697.
Buys
$529,005
Insiders: 4
Sells
$5,243,701
Insiders: 4
Net
-$4,714,697
Shares: -1,495,128
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 122,672
Shares: 1,617,800
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 1,500 | 208,000 | $19,320 | $2,354,050 | -$2,334,730 |
| 3-6 | 0 | 1,500 | $0 | $7,506 | -$7,506 |
| 6-9 | 104,372 | 1,108,300 | $422,242 | $2,204,595 | -$1,782,353 |
| 9-12 | 16,800 | 300,000 | $87,442 | $677,550 | -$590,108 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-19 of 19 reporting-owner rows connected to Silvaco Group, Inc.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
19
Largest Forms 3/4/5 holder
Katherine S. Ngai-Pesic
Net 12M change
-$4,714,697
Latest report
16 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Katherine S. Ngai-Pesic | Director, 10%+ Owner | $103,432,744 | -$3,628,085 | -3.4% | Filing P/S | 11 Jun 2026 |
| Illiya I. Pesic | Director, 10%+ Owner | $69,887,975 | -$850,530 | -1.2% | Filing P/S | 03 Jun 2026 |
| Yelena I. Pesic | Member of 10% owner group | $7,170,115 | -$597,000 | -7.7% | Filing P/S | 04 Dec 2025 |
| Babak A. Taheri | Chief Executive Officer, Director | $3,595,180 | Mixed | 13 Aug 2025 | ||
| Christopher John Zegarelli | Chief Financial Officer | $2,174,752 | +$83,153 | +4% | Mixed | 01 Apr 2026 |
| Walden C. Rhines | Chief Executive Officer, Director | $2,044,937 | +$214,648 | +12% | Mixed | 22 May 2026 |
| Anthony K.k. Ngai | Director | $1,443,450 | +$127,898 | +9.7% | Filing P/S | 16 Jun 2026 |
| Ryan A. Benton | Chief Financial Officer | $1,018,322 | Filing P/S | 01 Apr 2025 | ||
| Candace Jackson | SVP, General Counsel and Corporate Secretary | $564,839 | -$64,781 | -10% | Filing P/S | 14 May 2026 |
| Eric Guichard | Senior Vice President and General Manager of TCAD | $509,060 | Mixed | 01 Jul 2025 | ||
| Anita Ganti | Director | $444,716 | Mixed | 12 May 2026 | ||
| Raul Camposano | Chief Technology Officer | $425,476 | Mixed | 04 Nov 2024 | ||
| Hau L. Lee | Former Director | $362,337 | Mixed | 22 Apr 2026 | ||
| William H. Molloie Jr. | Former Director | $254,940 | Mixed | 22 Apr 2026 | ||
| Jodi Lynn Shelton | Former Director | $251,881 | Mixed | 22 Apr 2026 | ||
| Cheemin Bo-Linn | Director | $124,361 | Mixed | 22 Apr 2026 | ||
| Ted L. Tewksbury III | Director | $124,361 | Mixed | 22 Apr 2026 | ||
| Mark Steven Hancock | Other* | $9,405 | Mixed | 31 Jul 2024 | ||
| SMIK Grantor Retained Annuity Trust | Member of 10% owner group, 10%+ Owner | Mixed | 31 Jul 2024 |
Recent insider transactions for Silvaco Group, Inc.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Anthony K.k. Ngai | SVCO | Common Stock | Purchase | 0.43% | $6,250 | $12.50 | 500 | 115,476 | 16 Jun 2026 | Direct |
| S. Ngai Pesic | SVCO | Common Stock | Sale | -2.13% | $2,254,320 | $11.27 | -200,000 | 9,176,403 | 11 Jun 2026 | Direct |
| Anthony K.k. Ngai | SVCO | Common Stock | Purchase | 0.88% | $13,070 | $13.07 | 1,000 | 114,976 | 05 Jun 2026 | Direct |
| Illiya I. Pesic | SVCO | Common Stock | Sale | -0.11% | $77,730 | $12.96 | -6,000 | 5,394,672 | 03 Jun 2026 | Direct |
| Walden C. Rhines | SVCO | Common Stock | Award | 115.4% | 154,745 | 288,833 | 22 May 2026 | Direct | ||
| Candace Jackson | SVCO | Common Stock | Sale | -3.75% | $22,000 | $11.00 | -2,000 | 51,349 | 14 May 2026 | Direct |
| Illiya I. Pesic | SVCO | Common Stock | Award | 0.02% | 953 | 5,400,672 | 12 May 2026 | Direct | ||
| Anita Ganti | SVCO | Common Stock | Award | 1.89% | 1,165 | 62,813 | 12 May 2026 | Direct | ||
| Anthony K.k. Ngai | SVCO | Common Stock | Award | 1.22% | 1,376 | 113,976 | 12 May 2026 | Direct | ||
| S. Ngai Pesic | SVCO | Common Stock | Award | 0.02% | 1,694 | 9,376,403 | 12 May 2026 | Direct | ||
| Cheemin Bo-Linn | SVCO | Common Stock | Award | 17,564 | 17,564 | 22 Apr 2026 | Direct | |||
| Jodi Lynn Shelton | SVCO | Common Stock | Award | 5.38% | 1,817 | 35,574 | 22 Apr 2026 | Direct | ||
| Hau L. Lee | SVCO | Common Stock | Award | 5.63% | 2,726 | 51,174 | 22 Apr 2026 | Direct | ||
| William H. Molloie Jr. | SVCO | Common Stock | Award | 5.88% | 1,999 | 36,006 | 22 Apr 2026 | Direct | ||
| S. Ngai Pesic | SVCO | Common Stock | Award | 0.19% | 17,564 | 9,374,709 | 22 Apr 2026 | Direct | ||
| Anita Ganti | SVCO | Common Stock | Award | 48.5% | 17,564 | 53,790 | 22 Apr 2026 | Direct | ||
| Anthony K.k. Ngai | SVCO | Common Stock | Award | 18.5% | 17,564 | 112,600 | 22 Apr 2026 | Direct | ||
| Illiya I. Pesic | SVCO | Common Stock | Award | 0.33% | 17,564 | 5,399,719 | 22 Apr 2026 | Direct | ||
| Ted L. Tewksbury III | SVCO | Common Stock | Award | 17,564 | 17,564 | 22 Apr 2026 | Direct | |||
| Christopher John Zegarelli | SVCO | Common Stock | Sale | -0.45% | -2,431 | 536,976 | 01 Apr 2026 | Direct | ||
| Candace Jackson | SVCO | Common Stock | Sale | -3.29% | -1,817 | 53,349 | 01 Apr 2026 | Direct | ||
| S. Ngai Pesic | SVCO | Common Stock | Award | 0.03% | 3,259 | 9,357,145 | 17 Mar 2026 | Direct | ||
| Illiya I. Pesic | SVCO | Common Stock | Award | 0.04% | 2,256 | 5,382,155 | 17 Mar 2026 | Direct | ||
| Candace Jackson | SVCO | Common Stock | Sale | -2.65% | $7,506 | $5.00 | -1,500 | 55,166 | 17 Mar 2026 | Direct |
| Jodi Lynn Shelton | SVCO | Common Stock | Award | 8.02% | 2,507 | 33,757 | 17 Mar 2026 | Direct | ||
| William H. Molloie Jr. | SVCO | Common Stock | Award | 8.82% | 2,757 | 34,007 | 17 Mar 2026 | Direct | ||
| Anita Ganti | SVCO | Common Stock | Award | 8.24% | 2,757 | 36,226 | 17 Mar 2026 | Direct | ||
| Hau L. Lee | SVCO | Common Stock | Award | 8.41% | 3,760 | 48,448 | 17 Mar 2026 | Direct | ||
| Anthony K.k. Ngai | SVCO | Common Stock | Award | 3.55% | 3,259 | 95,036 | 17 Mar 2026 | Direct | ||
| Candace Jackson | SVCO | Common Stock | Award | 36% | 15,000 | 56,666 | 02 Mar 2026 | Direct | ||
| Christopher John Zegarelli | SVCO | Common Stock | Award | 22.8% | 100,000 | 539,407 | 02 Mar 2026 | Direct | ||
| Walden C. Rhines | SVCO | Common Stock | Award | 26.6% | 28,170 | 134,088 | 21 Feb 2026 | Direct | ||
| Illiya I. Pesic | SVCO | Common Stock | Sale | -1.82% | $193,800 | $1.94 | -100,000 | 5,379,899 | 07 Jan 2026 | Direct |
| Candace Jackson | SVCO | Common Stock | Tax liability | -3.26% | -1,403 | 41,666 | 01 Jan 2026 | Direct | ||
| Anthony K.k. Ngai | SVCO | Common Stock | Purchase | 1.1% | $4,230 | $4.23 | 1,000 | 91,777 | 11 Dec 2025 | Direct |
| S. Ngai Pesic | SVCO | Common Stock | Purchase | 0.24% | $103,305 | $4.13 | 25,000 | 10,303,886 | 10 Dec 2025 | Direct |
| Walden C. Rhines | SVCO | Common Stock | Purchase | 14.1% | $52,501 | $4.01 | 13,100 | 105,918 | 09 Dec 2025 | Direct |
| S. Ngai Pesic | SVCO | Common Stock | Gift | -1.63% | -170,000 | 10,278,886 | 09 Dec 2025 | Direct | ||
| Christopher John Zegarelli | SVCO | Common Stock | Purchase | 2.33% | $37,950 | $3.80 | 10,000 | 439,407 | 08 Dec 2025 | Direct |
| Yelena I. Pesic | SVCO | Common Stock | Sale | -7.69% | $597,000 | $1.99 | -300,000 | 3,603,073 | 04 Dec 2025 | Direct |
| S. Ngai Pesic | SVCO | Common Stock | Sale | -4.1% | $799,520 | $2.00 | -400,000 | 9,353,886 | 25 Nov 2025 | Direct |
| Candace Jackson | SVCO | Common Stock | Sale | -16.2% | $35,275 | $4.25 | -8,300 | 43,069 | 19 Nov 2025 | Direct |
| Anthony K.k. Ngai | SVCO | Common Stock | Purchase | 12.4% | $42,559 | $4.26 | 10,000 | 90,777 | 18 Nov 2025 | Direct |
| Walden C. Rhines | SVCO | Common Stock | Purchase | 45.4% | $118,166 | $4.07 | 29,000 | 92,818 | 18 Nov 2025 | Direct |
| Illiya I. Pesic | SVCO | Common Stock | Sale | -5.19% | $579,000 | $1.93 | -300,000 | 5,479,899 | 17 Nov 2025 | Direct |
| Christopher John Zegarelli | SVCO | Common Stock | Purchase | 1.18% | $19,550 | $3.91 | 5,000 | 429,407 | 17 Nov 2025 | Direct |
| Walden C. Rhines | SVCO | Common Stock | Purchase | 21.4% | $43,981 | $3.90 | 11,272 | 63,818 | 17 Nov 2025 | Direct |
| Christopher John Zegarelli | SVCO | Common Stock | Award | 4897.1% | 415,914 | 424,407 | 01 Oct 2025 | Direct | ||
| Candace Jackson | SVCO | Common Stock | Tax liability | -4.66% | -2,510 | 51,369 | 01 Oct 2025 | Direct | ||
| S. Ngai Pesic | SVCO | Common Stock | Sale | -2.98% | $677,550 | $2.26 | -300,000 | 9,753,886 | 16 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.