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Equibles

CITADEL ADVISORS LLC

Position in PRLB — Proto Labs Inc

CIK 1423053 MIAMI, FL
Back to PRLB Full portfolio

Position in PRLB

as of Jun 30, 2026 · filed Aug 14, 2026
Position Value
$7,223,823
+$4,685,407 QoQ
Shares Held
88,625
+99.1% QoQ
Ownership
0.370%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
#41
of 276 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in PRLB Over Time

Shares Held

Position Value (USD)

Derivatives in PRLB

reported options exposure · as of Jun 30, 2026
CallValue
$831,402
CallShares
10,200
PutValue
$0
PutShares
0

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 Metal Fabrication

Industrials · as of Jun 30, 2026

CITADEL ADVISORS LLC holds $144,667,777 across 12 Metal Fabrication names. PRLB ranks #5 (5.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 ATI
Ati Inc
 497,418 $98,041,086
2 IIIN
Insteel Industries Inc
 411,992 $12,442,157
3 CMC
COMMERCIAL METALS Co
 197,966 $12,422,366
4 MEC
Mayville Engineering Company, Inc.
 198,712 $7,443,751
5 PRLB
Proto Labs Inc
This page 		88,625 $7,223,823
6 ESAB
ESAB Corp
 41,650 $4,107,939
7 WOR
Worthington Enterprises, Inc.
 33,048 $1,776,660
8 AP
Ampco Pittsburgh Corp
 51,409 $444,687

All Filings in PRLB

Export CSV
50 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $831,402 10,200
2026-06-30 $7,223,823 88,625
2026-03-31 $575,902 10,100
2026-03-31 $2,538,416 44,518
2025-12-31 $349,071 6,900
2025-12-31 $344,012 6,800
2025-12-31 $630,401 12,461
2025-09-30 $320,192 6,400
2025-09-30 $2,762,256 55,212
2025-09-30 $885,531 17,700
2025-06-30 $1,105,104 27,600
2025-06-30 $4,962,397 123,936
2025-03-31 $442,730 12,635
2025-03-31 $1,138,800 32,500
2025-03-31 $1,475,184 42,100
2024-12-31 $2,138,223 54,700
2024-12-31 $1,555,782 39,800
2024-12-31 $585,920 14,989
2024-09-30 $867,031 29,521
2024-09-30 $546,282 18,600
2024-09-30 $1,010,328 34,400
2024-06-30 $1,269,579 41,100
2024-06-30 $834,215 27,006
2024-06-30 $908,166 29,400
2024-03-31 $984,912 27,550
2024-03-31 $514,800 14,400
2024-03-31 $1,287,000 36,000
2023-12-31 $1,471,090 37,759
2023-12-31 $1,355,808 34,800
2023-12-31 $288,304 7,400
2023-09-30 $240,240 9,100
2023-09-30 $3,393,746 128,551
2023-09-30 $102,960 3,900
2023-06-30 $3,441,811 98,450
2023-06-30 $971,888 27,800
2023-06-30 $304,152 8,700
2023-03-31 $619,905 18,700
2023-03-31 $1,302,364 39,287
2023-03-31 $248,625 7,500
2022-12-31 $114,885 4,500
2022-12-31 $209,346 8,200
2022-12-31 $1,585,718 62,112
2022-09-30 $327,870 9,000
2022-09-30 $3,692,070 101,347
2022-09-30 $1,027,326 28,200
2022-06-30 $1,526,096 31,900
2022-06-30 $2,165,047 45,256
2022-06-30 $942,448 19,700
2022-03-31 $2,518,779 47,614
2022-03-31 $1,999,620 37,800

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