Castleark Management’s Fastenal FAST Stock Holding History

Castleark Management’s Portfolio FAST Stock Details FAST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$8.23M	Buy	171,420 +22,730	+15%	+$1.03M	0.22%	112
2026 Q1	$6.9M	Buy	148,690 +141,770	+2,049%	+$6.36M	0.23%	110
2025 Q4	$278K	Sell	6,920 -122,900	-95%	-$5.17M	0.01%	270
2025 Q3	$6.37M	Buy	129,820 +122,900	+1,776%	+$5.81M	0.18%	129
2025 Q2	$291K	Hold	6,920	–	–	0.01%	244
2025 Q1	$268K	Hold	6,920	–	–	0.01%	251
2024 Q4	$249K	Hold	6,920	–	–	0.01%	254
2024 Q3	$247K	Hold	6,920	–	–	0.01%	234
2024 Q2	$217K	Hold	6,920	–	–	0.01%	236
2024 Q1	$267K	Hold	6,920	–	–	0.01%	244
2023 Q4	$224K	Hold	6,920	–	–	0.01%	248
2023 Q3	$189K	Hold	6,920	–	–	0.01%	243
2023 Q2	$204K	Hold	6,920	–	–	0.01%	245
2023 Q1	$187K	Hold	6,920	–	–	0.01%	250
2022 Q4	$164K	Hold	6,920	–	–	0.01%	262
2022 Q3	$159K	Hold	6,920	–	–	0.01%	261
2022 Q2	$173K	Hold	6,920	–	–	0.01%	275
2022 Q1	$206K	Hold	6,920	–	–	0.01%	287
2021 Q4	$222K	Hold	6,920	–	–	0.01%	300
2021 Q3	$179K	Hold	6,920	–	–	0.01%	297
2021 Q2	$180K	Hold	6,920	–	–	0.01%	303
2021 Q1	$174K	Hold	6,920	–	–	0.01%	301
2020 Q4	$169K	Hold	6,920	–	–	0.01%	310
2020 Q3	$156K	Hold	6,920	–	–	0.01%	314
2020 Q2	$148K	Hold	6,920	–	–	0.01%	303
2020 Q1	$108K	Hold	6,920	–	–	0.01%	296
2019 Q4	$128K	Hold	6,920	–	–	0.01%	314
2019 Q3	$113K	Sell	6,920 -128,920	-95%	-$2.01M	﹤0.01%	322
2019 Q2	$2.21M	Sell	135,840 -9,000	-6%	-$148K	0.08%	211
2019 Q1	$2.33M	Hold	144,840	–	–	0.09%	216
2018 Q4	$1.89M	Hold	144,840	–	–	0.08%	226
2018 Q3	$2.1M	Hold	144,840	–	–	0.06%	254
2018 Q2	$1.74M	Hold	144,840	–	–	0.05%	253
2018 Q1	$1.98M	Hold	144,840	–	–	0.06%	254
2017 Q4	$1.98M	Hold	144,840	–	–	0.06%	261
2017 Q3	$1.65M	Hold	144,840	–	–	0.05%	265
2017 Q2	$1.58M	Sell	144,840 -10,400	-7%	-$117K	0.05%	265
2017 Q1	$2M	Hold	155,240	–	–	0.06%	269
2016 Q4	$1.82M	Hold	155,240	–	–	0.06%	269
2016 Q3	$1.62M	Hold	155,240	–	–	0.05%	274
2016 Q2	$1.72M	Hold	155,240	–	–	0.06%	269
2016 Q1	$1.9M	Hold	155,240	–	–	0.06%	253
2015 Q4	$1.58M	Sell	155,240 -21,280	-12%	-$210K	0.05%	274
2015 Q3	$1.62M	Hold	176,520	–	–	0.05%	267
2015 Q2	$1.86M	Hold	176,520	–	–	0.05%	282
2015 Q1	$1.83M	Hold	176,520	–	–	0.04%	269
2014 Q4	$2.1M	Sell	176,520 -7,480	-4%	-$83.7K	0.05%	236
2014 Q3	$2.27M	Hold	184,000	–	–	0.06%	213
2014 Q2	$2.28M	Hold	184,000	–	–	0.06%	212
2014 Q1	$2.27M	Hold	184,000	–	–	0.06%	213
2013 Q4	$2.19M	Buy	184,000 +7,480	+4%	+$89.8K	0.06%	209
2013 Q3	$1.98M	Sell	176,520 -37,080	-17%	-$439K	0.06%	220
2013 Q2	$2.44M	Buy	+213,600	New	+$2.62M	0.08%	177

Other funds holding FAST

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

California State Teachers Retirement System (CalSTRS) West Sacramento, California $782B AUM 28.39% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Castleark Management's FAST Position: Q2 2026 in Review

Castleark Management increased its Fastenal (FAST) stake by 15% in Q2 2026, buying an estimated $1.03M and bringing the position to 171,420 shares worth $8.23M. The position accounts for 0.22% of the portfolio, ranked #112.

Castleark Management first reported a position in FAST in Q2 2013 and has held it in 53 quarters since. 1,454 funds tracked by Wall St. Rank hold FAST as of Q2 2026.

Castleark Management held 171,420 shares of Fastenal worth $8.23M as of Q2 2026.
Castleark Management bought 22,730 Fastenal shares in Q2 2026, an estimated $1.03M.
Fastenal made up 0.22% of Castleark Management's portfolio in Q2 2026, its #112 holding.
Castleark Management first reported a position in Fastenal in Q2 2013 and has held it in 53 quarters since.
1,454 funds tracked by Wall St. Rank held Fastenal as of Q2 2026.

Based on Castleark Management's 13F filing for Q2 2026, filed 14 Aug 2026.