Citadel Advisors’s Protolabs PRLB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
Sell
-6,800
Closed -$344K 13964
2025
Q4
$344K Buy
6,800
+400
+6% +$20.5K ﹤0.01% 9842
2025
Q3
$320K Buy
+6,400
New +$293K ﹤0.01% 10206
2025
Q2
Sell
-42,100
Closed -$1.48M 14534
2025
Q1
$1.48M Buy
42,100
+2,300
+6% +$90.7K ﹤0.01% 6121
2024
Q4
$1.56M Buy
39,800
+21,200
+114% +$762K ﹤0.01% 6152
2024
Q3
$546K Sell
18,600
-10,800
-37% -$330K ﹤0.01% 8075
2024
Q2
$908K Buy
29,400
+15,000
+104% +$475K ﹤0.01% 6786
2024
Q1
$515K Buy
14,400
+7,000
+95% +$253K ﹤0.01% 8325
2023
Q4
$288K Buy
7,400
+3,500
+90% +$113K ﹤0.01% 9247
2023
Q3
$103K Sell
3,900
-4,800
-55% -$145K ﹤0.01% 10861
2023
Q2
$304K Buy
8,700
+1,200
+16% +$38.2K ﹤0.01% 9020
2023
Q1
$249K Sell
7,500
-700
-9% -$21.7K ﹤0.01% 9774
2022
Q4
$209K Sell
8,200
-800
-9% -$23.8K ﹤0.01% 10044
2022
Q3
$328K Sell
9,000
-10,700
-54% -$464K ﹤0.01% 9369
2022
Q2
$942K Sell
19,700
-18,100
-48% -$839K ﹤0.01% 7155
2022
Q1
$2M Buy
37,800
+13,600
+56% +$716K ﹤0.01% 6082
2021
Q4
$1.24M Sell
24,200
-68,200
-74% -$4.02M ﹤0.01% 7404
2021
Q3
$6.15M Buy
92,400
+10,100
+12% +$789K ﹤0.01% 3925
2021
Q2
$7.55M Buy
82,300
+16,100
+24% +$1.59M ﹤0.01% 3596
2021
Q1
$8.06M Buy
66,200
+24,700
+60% +$4.11M ﹤0.01% 3314
2020
Q4
$6.37M Buy
41,500
+11,700
+39% +$1.65M ﹤0.01% 3274
2020
Q3
$3.86M Buy
29,800
+17,600
+144% +$2.31M ﹤0.01% 3542
2020
Q2
$1.37M Buy
12,200
+500
+4% +$51.3K ﹤0.01% 5243
2020
Q1
$891K Buy
11,700
+6,200
+113% +$575K ﹤0.01% 5535
2019
Q4
$559K Sell
5,500
-5,900
-52% -$585K ﹤0.01% 6638
2019
Q3
$1.16M Buy
11,400
+1,600
+16% +$163K ﹤0.01% 5327
2019
Q2
$1.14M Sell
9,800
-2,200
-18% -$237K ﹤0.01% 5492
2019
Q1
$1.26M Sell
12,000
-12,800
-52% -$1.44M ﹤0.01% 5190
2018
Q4
$2.8M Sell
24,800
-8,100
-25% -$999K ﹤0.01% 3637
2018
Q3
$5.32M Buy
32,900
+10,600
+48% +$1.5M ﹤0.01% 2921
2018
Q2
$2.65M Buy
22,300
+10,100
+83% +$1.24M ﹤0.01% 3676
2018
Q1
$1.43M Buy
12,200
+2,400
+24% +$271K ﹤0.01% 4249
2017
Q4
$1.01M Buy
9,800
+1,900
+24% +$171K ﹤0.01% 4635
2017
Q3
$634K Buy
7,900
+700
+10% +$50.6K ﹤0.01% 4977
2017
Q2
$484K Buy
7,200
+800
+13% +$48.3K ﹤0.01% 5159
2017
Q1
$327K Sell
6,400
-900
-12% -$47.7K ﹤0.01% 5765
2016
Q4
$375K Sell
7,300
-6,700
-48% -$351K ﹤0.01% 5345
2016
Q3
$839K Sell
14,000
-8,800
-39% -$506K ﹤0.01% 4060
2016
Q2
$1.31M Buy
22,800
+5,800
+34% +$387K ﹤0.01% 3237
2016
Q1
$1.31M Sell
17,000
-6,000
-26% -$387K ﹤0.01% 3138
2015
Q4
$1.47M Sell
23,000
-3,300
-13% -$213K ﹤0.01% 3110
2015
Q3
$1.76M Sell
26,300
-7,400
-22% -$527K ﹤0.01% 3108
2015
Q2
$2.27M Buy
33,700
+16,300
+94% +$1.15M ﹤0.01% 2923
2015
Q1
$1.22M Buy
17,400
+3,300
+23% +$223K ﹤0.01% 3675
2014
Q4
$947K Sell
14,100
-8,600
-38% -$565K ﹤0.01% 3835
2014
Q3
$1.57M Sell
22,700
-6,200
-21% -$485K ﹤0.01% 3147
2014
Q2
$2.37M Sell
28,900
-3,200
-10% -$217K ﹤0.01% 2570
2014
Q1
$2.17M Sell
32,100
-16,500
-34% -$1.23M ﹤0.01% 2570
2013
Q4
$3.46M Buy
48,600
+5,800
+14% +$450K ﹤0.01% 2011
2013
Q3
$3.27M Buy
42,800
+24,500
+134% +$1.7M 0.01% 1951
2013
Q2
$1.19M Buy
+18,300
New +$983K ﹤0.01% 3010

Other funds holding PRLB

Citadel Advisors's PRLB Position: Q1 2026 in Review

Citadel Advisors increased its Protolabs (PRLB) stake by 257% in Q1 2026, buying an estimated $1.86M and bringing the position to 44,518 shares worth $2.54M. The position accounts for ﹤0.01% of the portfolio, ranked #5585.

Citadel Advisors first reported a position in PRLB in Q2 2013 and has held it in 43 quarters since. The position peaked at $14.9M in Q1 2021. 262 funds tracked by Wall St. Rank hold PRLB as of Q1 2026.

  • Citadel Advisors held 44,518 shares of Protolabs worth $2.54M as of Q1 2026.
  • Citadel Advisors bought 32,057 Protolabs shares in Q1 2026, an estimated $1.86M.
  • Protolabs made up ﹤0.01% of Citadel Advisors's portfolio in Q1 2026, its #5585 holding.
  • Citadel Advisors first reported a position in Protolabs in Q2 2013 and has held it in 43 quarters since.
  • Citadel Advisors's Protolabs position peaked at $14.9M in Q1 2021.
  • 262 funds tracked by Wall St. Rank held Protolabs as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.