Vault-13

SHIMMICK CORPORATION SHIM

COM · Common Stock · CUSIP 82455M109

52 institutional holders +29 vs Q1 2026
5,791,9575.8m shares reported held*
14.0% of all shares outstanding*
$26.5mreported value*
29 new 15 added 7 reduced 0 sold out net bought ≈ $16.3m (+3.6m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 41.3m as of 2026-08-07, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $4.57.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

0204060Q4 23: 16Q1 24: 27Q2 24: 20Q3 24: 21Q4 24: 24Q1 25: 18Q2 25: 17Q3 25: 17Q4 25: 16Q1 26: 23Q2 26: 5252Q4 23Q2 24Q4 24Q2 25Q4 25Q2 26
Numbers
QuarterHolders
Q4 202316
Q1 202427
Q2 202420
Q3 202421
Q4 202424
Q1 202518
Q2 202517
Q3 202517
Q4 202516
Q1 202623
Q2 202652

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
50050Q3 24: 10 bought or addedQ3 24: 12 cut or sold outQ4 24: 9 bought or addedQ4 24: 10 cut or sold outQ4 24Q1 25: 9 bought or addedQ1 25: 9 cut or sold outQ2 25: 4 bought or addedQ2 25: 8 cut or sold outQ2 25Q3 25: 7 bought or addedQ3 25: 5 cut or sold outQ4 25: 7 bought or addedQ4 25: 8 cut or sold outQ4 25Q1 26: 16 bought or addedQ1 26: 5 cut or sold outQ2 26: 44 bought or addedQ2 26: 7 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 20241012
Q4 2024910
Q1 202599
Q2 202548
Q3 202575
Q4 202578
Q1 2026165
Q2 2026447

Biggest buyers

CANNELL CAPITAL LLC New +957,605+957.6k
GRATIA CAPITAL, LLC New +726,936+726.9k
MYDA Advisors LLC New +575,000+575.0k
1492 Capital Management LLC Added +454,066+454.1k
VANGUARD CAPITAL MANAGEMENT LLC Added +222,682+222.7k
BlackRock, Inc. Added +218,073+218.1k
Walleye Capital LLC New +126,392+126.4k
Pacific Ridge Capital Partners, LLC Added +102,662+102.7k
RENAISSANCE TECHNOLOGIES LLC Added +89,855+89.9k
MARSHALL WACE, LLP New +77,293+77.3k

Biggest sellers

SANDERS MORRIS HARRIS LLC Reduced -390,097-390.1k
THOMPSON DAVIS & CO., INC. Reduced -21,500-21.5k
SEI INVESTMENTS CO Reduced -16,269-16.3k
Informed Momentum Co LLC Reduced -5,472-5.5k
GSA CAPITAL PARTNERS LLP Reduced -5,085-5.1k
ROYAL BANK OF CANADA Reduced -73-73
CITADEL ADVISORS LLC Reduced -15-15

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
Goldsteen Mitchell B. 13G · exempt (held before listing) -4.7 pts · filed 2026-05-15 57.8% -4.7 pts 21.0m≈ $95.9m 2026-05-15
AECOM 13D · may seek influence filed 2026-08-12 18.7% 7.7m≈ $35.4m 2026-08-12

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
202Q4 24: 0 buyingQ4 24: 1 sellingQ1 25: 0 buyingQ1 25: 1 sellingQ1 25Q2 25: 0 buyingQ2 25: 2 sellingQ3 25: 1 buyingQ3 25: 1 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 1 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—1$1.1m$1.1m
Q1 20250—1$50.3k$50.3k
Q2 20250—2$300.2k$278.8k
Q3 20251$5.6k1$562.2k$562.2k
Q4 20250—0——
Q1 20260—1$357.5k$357.5k
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 CANNELL CAPITAL LLC 3.06% of their portfolio ALTA, WY 957,605957.6k $4.4m $4.4m 3.06% New
2 GRATIA CAPITAL, LLC 3.82% of their portfolio LOS ANGELES, CA 726,936726.9k $3.3m $3.3m 3.82% New
3 1492 Capital Management LLC 0.81% of their portfolio MILWAUKEE, WI 603,878603.9k $2.8m $2.8m 0.81% Added +454.1k +454,066
4 MYDA Advisors LLC 0.64% of their portfolio WOODMERE, NY 575,000575.0k $2.6m $2.6m 0.64% New
5 Pacific Ridge Capital Partners, LLC 0.45% of their portfolio LAKE OSWEGO, OR 542,440542.4k $2.5m $2.5m 0.45% Added +102.7k +102,662
6 SANDERS MORRIS HARRIS LLC 0.98% of their portfolio Houston, TX 368,300368.3k $1.7m $1.7m 0.98% Reduced -390.1k -390,097
7 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 283,891283.9k $1.3m $1.3m 0.00% Added +222.7k +222,682
8 SEI INVESTMENTS CO 0.00% of their portfolio OAKS, PA 230,547230.5k $1.1m $1.1m 0.00% Reduced -16.3k -16,269
9 BlackRock, Inc. 0.00% of their portfolio New York, NY 229,424229.4k $1.0m $1.0m 0.00% Added +218.1k +218,073
10 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 156,112156.1k $713.4k $713.4k 0.00% Added +71.0k +71,003
11 Informed Momentum Co LLC 0.05% of their portfolio SOLANA BEACH, CA 132,978133.0k $607.7k $607.7k 0.05% Reduced -5.5k -5,472
12 Walleye Capital LLC 0.00% of their portfolio NEW YORK, NY 126,392126.4k $577.6k $577.6k 0.00% New
13 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 125,555125.6k $573.8k $573.8k 0.00% Added +89.9k +89,855
14 THOMPSON DAVIS & CO., INC. 0.28% of their portfolio RICHMOND, VA 104,000104.0k $475.3k $475.3k 0.28% Reduced -21.5k -21,500
15 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 77,29377.3k $353.2k $353.2k 0.00% New
16 Integrated Quantitative Investments LLC 0.04% of their portfolio BELLEVUE, WA 50,67750.7k $231.6k $231.6k 0.04% New
17 Avanza Fonder AB 0.00% of their portfolio STOCKHOLM, V7 42,41442.4k $193.8k $193.8k 0.00% Added +15.7k +15,650
18 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 37,73237.7k $172.4k $172.4k 0.00% Added +5.1k +5,101
19 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 36,64036.6k $167.4k $167.4k 0.00% New
20 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 35,70335.7k $163.2k $163.2k 0.00% Added +16.4k +16,437
21 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 34,87034.9k $159.4k $159.4k 0.00% New
22 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 34,58934.6k $158.1k $158.1k 0.00% Added +22.9k +22,945
23 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 33,70033.7k $154.0k $154.0k 0.00% Added +19.0k +19,000
24 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 29,49229.5k $134.8k $134.8k 0.00% New
25 Centiva Capital, LP 0.00% of their portfolio New York, NY 25,83825.8k $118.1k $118.1k 0.00% Added +12.8k +12,844
26 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 24,60024.6k $112.4k $112.4k 0.00% New
27 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 24,45724.5k $111.8k $111.8k 0.00% Reduced -15 -15
28 ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio Boston, MA 19,92019.9k $90.0k $90.0k 0.00% New
29 UBS Group AG 0.00% of their portfolio ZURICH, V8 15,44015.4k $70.6k $70.6k 0.00% Added +15.1k +15,142
30 AXQ CAPITAL, LP 0.01% of their portfolio JERSEY CITY, NJ 15,06115.1k $68.8k $68.8k 0.01% New
31 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 13,55513.6k $61.9k $61.9k 0.00% New
32 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 12,69812.7k $58.0k $58.0k 0.00% New
33 GSA CAPITAL PARTNERS LLP 0.00% of their portfolio LONDON, X0 11,58911.6k $53.0k $53.0k 0.00% Reduced -5.1k -5,085
34 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 10,37210.4k $47.4k $47.4k 0.00% New
35 CHOREO, LLC 0.00% of their portfolio ROCKFORD, IL 10,27210.3k $46.9k $46.9k 0.00% Unchanged
36 Ancora Advisors LLC 0.00% of their portfolio Cleveland, OH 4,7504.8k $21.7k $21.7k 0.00% New
37 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 4,6624.7k $21.3k $21.3k 0.00% New
38 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 4,0284.0k $18.4k $18.4k 0.00% New
39 Morse Asset Management, Inc 0.00% of their portfolio DARIEN, CT 3,2003.2k $14.6k $14.6k 0.00% New
40 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 2,4612.5k $11.2k $11.2k 0.00% New
41 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 2,3652.4k $10.8k $10.8k 0.00% New
42 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 2,1292.1k $9.1k $9.1k 0.00% New
43 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,9982.0k $9.1k $9.1k 0.00% New
44 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,8241.8k $8.3k $8.3k 0.00% New
45 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,8161.8k $8.3k $8.3k 0.00% New
46 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,2371.2k $5.7k $5.7k 0.00% Added +691 +691
47 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 466466 $2.1k $2.1k 0.00% New
48 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 420420 $1.9k $1.9k 0.00% Added +220 +220
49 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 409409 $1.9k $1.9k 0.00% New
50 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 193193 $1.0k $1.0k 0.00% Reduced -73 -73
51 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 2424 $110 $110 0.00% New
52 FMR LLC 0.00% of their portfolio BOSTON, MA 55 $23 $23 0.00% New