Comparable stake leader
Mitchell B. Goldsteen
SEC ownership of Shimmick Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001887944.
Disclosed value leader
Mitchell B. Goldsteen
Comparable rows
29/36
Latest evidence
29 May 2026
- Symbol
- SHIM on Nasdaq
- SEC evidence covered
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- Mitchell B. Goldsteen
- Latest 13D/G holder
- Mitchell B. Goldsteen
- Latest parsed evidence date
- 29 May 2026
- CIK
- 0001887944
- Location
- Irvine, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Who this page is about.
2 identity fields
Ownership snapshot
Top shareholders of Shimmick Corp (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
Mitchell B. Goldsteen
Disclosed value leader
Mitchell B. Goldsteen
Comparable rows
29/36
Latest evidence
29 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 58%
7 rows are not safely comparable across share classes.
13D/G row: Mitchell B. Goldsteen
Showing 1-8 of 36 holder rows.
Quick read
Mitchell B. Goldsteen leads the comparable SEC ownership view at 58%.
29 of 36 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 Mitchell B. Goldsteen's linked filing trail.
Comparable ownership
Top 5
Mitchell B. Goldsteen
58%
J. Brendan Herron
0.43%
Joseph A. del Guercio
0.34%
Geoffrey E. Heekin
0.3%
Carolyn Trabuco
0.26%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 36 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Mitchell B. Goldsteen |
13D/G
3/4/5
Director, 10%+ Owner
|
58%
|
$82,011,753
20,974,873 shares
|
-$1,970,057 | 31 Mar 2026 |
| J. Brendan Herron |
3/4/5
Director
|
0.43%
|
$264,822
155,778 shares
|
— | 04 Jun 2025 |
| Joseph A. del Guercio |
3/4/5
Director
|
0.34%
|
$210,638
123,905 shares
|
— | 04 Jun 2025 |
| Geoffrey E. Heekin |
3/4/5
Director
|
0.3%
|
$184,922
108,778 shares
|
— | 04 Jun 2025 |
| Carolyn Trabuco |
3/4/5
Director
|
0.26%
|
$163,278
96,046 shares
|
— | 04 Jun 2025 |
| Peter Kravitz |
3/4/5
Director
|
0.23%
|
$272,189
84,269 shares
mixed-class rows
|
— | 04 Jun 2025 |
| SANDERS MORRIS HARRIS LLC |
13F
Company
|
2.1%
|
$2,783,316
758,397 shares
|
— | 31 Mar 2026 |
| Pacific Ridge Capital Partners, LLC |
13F
Company
|
1.2%
|
$1,613,985
439,778 shares
|
— | 31 Mar 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: -$1,007,724.
Buys
$5,600
Insiders: 1
Sells
$1,013,324
Insiders: 1
Net
-$1,007,724
Shares: -439,085
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 2,000
Shares: 441,085
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 125,000 | $0 | $357,500 | -$357,500 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 2,000 | 316,085 | $5,600 | $655,824 | -$650,224 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-13 of 13 reporting-owner rows connected to Shimmick Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
13
Largest Forms 3/4/5 holder
Mitchell B. Goldsteen
Net 12M change
-$1,002,264
Latest report
29 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Mitchell B. Goldsteen | Director, 10%+ Owner | $59,988,136 | -$1,007,864 | -1.7% | Filing P/S | 17 Mar 2026 |
| AECOM | 10%+ Owner | $11,849,850 | Mixed | 26 Jun 2024 | ||
| Ural Yal | Chief Executive Officer, Director | $1,297,457 | Mixed | 02 Dec 2025 | ||
| Executive Devin J. Nordhagen | Executive Vice President, Chief Financial Officer | $999,999 | Mixed | 13 Nov 2023 | ||
| Steven E. Richards | Chief Executive Officer, Director | $999,999 | Mixed | 13 Nov 2023 | ||
| Todd W. Yoder | Chief Financial Officer | $350,554 | +$5,600 | +1.6% | Median | 14 Apr 2026 |
| Peter Kravitz | Director | $272,189 | Mixed | 04 Jun 2025 | ||
| J. Brendan Herron | Director | $264,822 | Mixed | 04 Jun 2025 | ||
| Joseph A. del Guercio | Director | $210,638 | Mixed | 04 Jun 2025 | ||
| Geoffrey E. Heekin | Director | $184,922 | Mixed | 04 Jun 2025 | ||
| Carolyn Trabuco | Director | $163,278 | Mixed | 04 Jun 2025 | ||
| Amanda Mobley | Interim Chief Financial Officer | $76,500 | Mixed | 21 Jun 2024 | ||
| Sarah Beth Tacker | Chief Operating Officer | $66,548 | Median | 29 May 2026 |
Recent insider transactions for Shimmick Corp
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sarah Beth Tacker | SHIM | Common Stock, par value $0.01 per share | Tax liability | -31.8% | -8,463 | 18,133 | 29 May 2026 | Direct | ||
| Sarah Beth Tacker | SHIM | Common Stock, par value $0.01 per share | Options Exercise | 26,596 | 26,596 | 29 May 2026 | Direct | |||
| Sarah Beth Tacker | SHIM | Restricted Stock Units | Options Exercise | -23.1% | -26,596 | 88,652 | 29 May 2026 | Direct | ||
| Sarah Beth Tacker | SHIM | Restricted Stock Units | Award | 115,248 | 88,652 | 29 Apr 2026 | Direct | |||
| Todd W. Yoder | SHIM | Common Stock, par value $0.01 per share | Tax liability | -42.6% | -38,728 | 52,129 | 14 Apr 2026 | Direct | ||
| Todd W. Yoder | SHIM | Common Stock, par value $0.01 per share | Options Exercise | 132,247 | 111,912 | 14 Apr 2026 | Direct | |||
| Todd W. Yoder | SHIM | Restricted Stock Units | Options Exercise | -100% | -132,247 | 0 | 14 Apr 2026 | Direct | ||
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.59% | $357,500 | $2.86 | -125,000 | 20,974,873 | 17 Mar 2026 | By GOHO, LLC |
| Ural Yal | SHIM | Common Stock, par value $0.01 per share | Options Exercise | 173,205 | 173,205 | 02 Dec 2025 | Direct | |||
| Ural Yal | SHIM | Restricted Stock Units | Options Exercise | -60% | -270,270 | 180,180 | 02 Dec 2025 | Direct | ||
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.07% | $43,530 | $2.96 | -14,706 | 21,099,873 | 29 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.05% | $33,390 | $3.18 | -10,500 | 21,114,579 | 28 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.04% | $30,640 | $3.32 | -9,229 | 21,125,079 | 27 Aug 2025 | By GOHO, LLC |
| Todd W. Yoder | SHIM | Common Stock, par value $0.01 per share | Purchase | $5,600 | $2.80 | 2,000 | 2,000 | 21 Aug 2025 | Direct | |
| Todd W. Yoder | SHIM | Common Stock | Award | 2,000 | 2,000 | 21 Aug 2025 | Direct | |||
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.15% | $68,695 | $2.23 | -30,805 | 21,134,308 | 15 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.03% | $13,293 | $2.11 | -6,300 | 21,165,113 | 14 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.04% | $16,800 | $2.10 | -8,000 | 21,171,413 | 13 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $4,190 | $1.98 | -2,116 | 21,179,413 | 12 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.07% | $30,008 | $1.96 | -15,310 | 21,181,529 | 11 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $4,550 | $1.82 | -2,500 | 21,196,839 | 08 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $3,440 | $1.72 | -2,000 | 21,199,339 | 07 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $8,860 | $1.74 | -5,092 | 21,201,339 | 06 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.03% | $10,800 | $1.73 | -6,243 | 21,206,431 | 05 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.03% | $12,413 | $1.73 | -7,175 | 21,212,674 | 04 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $3,864 | $1.68 | -2,300 | 21,219,849 | 01 Aug 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | $1,790 | $1.79 | -1,000 | 21,222,149 | 31 Jul 2025 | By GOHO, LLC | |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $7,360 | $1.84 | -4,000 | 21,247,925 | 30 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $7,401 | $1.87 | -3,958 | 21,251,925 | 29 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | $2,070 | $2.07 | -1,000 | 21,255,883 | 28 Jul 2025 | By GOHO, LLC | |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $7,904 | $2.08 | -3,800 | 21,256,883 | 25 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $8,151 | $2.09 | -3,900 | 21,260,683 | 24 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.13% | $59,268 | $2.10 | -28,223 | 21,264,583 | 23 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.09% | $38,464 | $2.10 | -18,316 | 21,292,806 | 22 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | $1,728 | $2.16 | -800 | 21,311,122 | 21 Jul 2025 | By GOHO, LLC | |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $4,380 | $2.19 | -2,000 | 21,311,922 | 18 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.04% | $18,828 | $2.20 | -8,558 | 21,313,922 | 17 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $4,242 | $2.02 | -2,100 | 21,322,480 | 16 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.03% | $14,140 | $2.02 | -7,000 | 21,324,580 | 15 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $2,587 | $1.99 | -1,300 | 21,331,580 | 14 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | $1,990 | $1.99 | -1,000 | 21,332,880 | 11 Jul 2025 | By GOHO, LLC | |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $4,378 | $1.99 | -2,200 | 21,333,880 | 10 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $2,633 | $2.01 | -1,310 | 21,336,080 | 09 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.03% | $13,790 | $1.97 | -7,000 | 21,337,390 | 08 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $5,086 | $1.90 | -2,677 | 21,344,390 | 07 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $3,819 | $2.01 | -1,900 | 21,347,067 | 03 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.02% | $8,761 | $1.96 | -4,470 | 21,348,967 | 02 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.14% | $58,982 | $1.99 | -29,639 | 21,353,437 | 01 Jul 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | -0.01% | $2,924 | $1.72 | -1,700 | 21,383,076 | 30 Jun 2025 | By GOHO, LLC |
| Mitchell B. Goldsteen | SHIM | Common Stock, par value $0.01 per share | Sale | $1,566 | $1.71 | -916 | 21,384,776 | 27 Jun 2025 | By GOHO, LLC |
* marks a reported price that did not pass the local price check.