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JANE STREET GROUP, LLC

Position in WLDN — Willdan Group, Inc.

CIK 1595888 NEW YORK, NY

Position in WLDN

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$10,915,311
+$6,345,564 QoQ
Shares Held
142,572
+223.4% QoQ
Ownership
0.944%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2021
11 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Common Shares in WLDN Over Time

Shares Held

Position Value (USD)

Derivatives in WLDN

reported options exposure · as of Mar 31, 2026
CallValue
$1,186,680
CallShares
15,500
PutValue
$336,864
PutShares
4,400

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Engineering & Construction

Industrials · as of Mar 31, 2026

JANE STREET GROUP, LLC holds $259,459,029 across 36 Engineering & Construction names. WLDN ranks #6 (4.2% of the industry book) .

# Ticker Company Shares Value (USD) Open
6 WLDN
Willdan Group, Inc.
This page
142,572 $10,915,311

All Filings in WLDN

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16 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $336,864 4,400
2026-03-31 $1,186,680 15,500
2026-03-31 $10,915,311 142,572
2025-12-31 $2,239,056 21,600
2025-12-31 $4,569,747 44,084
2025-09-30 $2,929,707 30,300
2025-09-30 $11,176,203 115,588
2025-06-30 $225,036 3,600
2025-06-30 $2,609,291 41,742
2025-03-31 $1,030,296 25,302
2024-12-31 $315,042 8,271
2024-09-30 $813,798 19,873
2024-06-30 $430,008 14,905
2024-03-31 $335,645 11,578
2021-12-31 $818,611 23,256
2021-03-31 $383,489 9,342