Fastenal: which funds bought and sold

Institutions that bought and sold Fastenal shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 681 institutions that filed 13F reports for both quarters added to or opened positions in Fastenal, and 602 cut or closed them. Together they sold a net 5.0M shares, −0.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 9.5M shares (−12.1%); index fund managers were net buyers of 6.7M shares (+1.6%). 116 opened a new position and 80 sold out entirely.

Bought, Q2 2026 681 institutions, 116 of them new holders Sold, Q2 2026 602 institutions, 80 of them sold out

Net change, all compared −5.0M shares (−0.5%)

Net change, active managers −9.5M shares (−12.1%), 34 bought, 37 sold

Buyers versus sellers

institutions compared, 1,513

681 bought 230 602 sold

Active managers and hedge funds 34 bought · 37 sold · −9.5M

Index fund managers 9 bought · 3 sold · +6.7M

Other institutions 638 bought · 562 sold · −2.2M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Jpmorgan Chase & Co	+9.7M +162.7%	15.7M	$746M
Charles Schwab Investment Management Inc Index funds	+3.5M +8.9%	42.9M	$2.1B
Millennium Management LLC Hedge fund	+2.0M +263.3%	2.8M	$134M
Mariner, LLC	+1.7M +40.3%	5.9M	$283M
State Farm Mutual Automobile Insurance Co	+1.7M +59.4%	4.5M	$216M
AQR Capital Management LLC Hedge fund	+1.6M +182.6%	2.5M	$117M
Blackrock, Inc. Index funds	+1.5M +1.5%	106.3M	$5.1B
Invesco Ltd.	+1.3M +3.5%	39.6M	$1.9B
HSBC Holdings PLC	+1.2M +35.0%	4.8M	$230M
Price T Rowe Associates Inc Active manager	+1.2M +32.9%	4.9M	$237M
Deutsche Bank Ag\	+1.1M +28.0%	5.0M	$239M
Goldman Sachs Group Inc	+1.1M +8.0%	14.3M	$685M
Citadel Advisors LLC Hedge fund	+913K +86.1%	2.0M	$94.8M
State Street Corp Index funds	+870K +1.6%	56.4M	$2.7B
Assenagon Asset Management S.A.	+830K +346.3%	1.1M	$51.4M
Aberdeen Group PLC	+815K +43.3%	2.7M	$129M
LPL Financial LLC	+758K +44.6%	2.5M	$118M
Logan Capital Management Inc	+690K New position	690K	$33.2M
Citigroup Inc	+649K +44.0%	2.1M	$102M
Mirae Asset Global Etfs Holdings Ltd.	+598K +6.6%	9.7M	$466M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Millennium Management LLC Hedge fund	+2.0M +263.3%	2.8M	$134M
AQR Capital Management LLC Hedge fund	+1.6M +182.6%	2.5M	$117M
Price T Rowe Associates Inc Active manager	+1.2M +32.9%	4.9M	$237M
Citadel Advisors LLC Hedge fund	+913K +86.1%	2.0M	$94.8M
Marshall Wace, LLP Hedge fund	+496K +376.0%	628K	$30.2M
Voleon Capital Management LP Hedge fund	+413K +283.3%	559K	$26.9M
American Century Companies Inc Active manager	+314K +7.8%	4.3M	$208M
D. E. Shaw & Co., Inc. Hedge fund	+285K +367.3%	363K	$17.4M
Tudor Investment Corp Et Al Hedge fund	+271K New position	271K	$13M
Qube Research & Technologies Ltd Hedge fund	+254K New position	254K	$12.2M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Cantillon Capital Management LLC	−7.8M −95.4%	376K	$18.1M
Bank Of New York Mellon Corp	−6.8M −27.4%	17.9M	$859M
Wellington Management Group LLP Active manager	−5.8M −35.2%	10.8M	$517M
Morgan Stanley	−4.9M −19.0%	20.9M	$1B
Holocene Advisors, LP Hedge fund	−2.6M −98.1%	49K	$2.4M
FMR LLC Active manager	−2.5M −32.8%	5.2M	$249M
Champlain Investment Partners, LLC Active manager	−2.0M −69.3%	891K	$42.8M
UBS Group AG	−2.0M −24.4%	6.2M	$296M
Principal Financial Group Inc	−1.5M −17.2%	7.2M	$348M
Balyasny Asset Management L.P. Hedge fund	−1.3M Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−1.2M Sold out	0	—
Franklin Resources Inc Active manager	−1.1M −17.7%	5.1M	$245M
Barclays PLC	−1.1M −37.1%	1.8M	$88.6M
UBS Am, A Distinct Business Unit Of UBS Asset Management Americas LLC	−842K −7.3%	10.7M	$513M
Marshfield Associates	−734K −22.2%	2.6M	$124M
Susquehanna International Group, LLP	−636K −79.9%	160K	$7.7M
California Public Employees Retirement System	−572K −17.1%	2.8M	$134M
Proshare Advisors LLC Index funds	−564K −10.6%	4.8M	$229M
TD Asset Management Inc	−521K −13.8%	3.3M	$156M
HRT Financial LP	−453K −61.9%	279K	$13.4M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Wellington Management Group LLP Active manager	−5.8M −35.2%	10.8M	$517M
Holocene Advisors, LP Hedge fund	−2.6M −98.1%	49K	$2.4M
FMR LLC Active manager	−2.5M −32.8%	5.2M	$249M
Champlain Investment Partners, LLC Active manager	−2.0M −69.3%	891K	$42.8M
Balyasny Asset Management L.P. Hedge fund	−1.3M Sold out	0	—
Arrowstreet Capital, Limited Partnership Hedge fund	−1.2M Sold out	0	—
Franklin Resources Inc Active manager	−1.1M −17.7%	5.1M	$245M
Squarepoint Ops LLC Hedge fund	−333K −12.5%	2.3M	$111M
Federated Hermes, Inc. Active manager	−233K −38.1%	378K	$18.2M
Riverbridge Partners LLC Active manager	−220K −9.9%	2.0M	$96.1M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Logan Capital Management Inc	690K	$33.2M
Night Squared LP	565K	$27.1M
Tudor Investment Corp Et AlHedge fund	271K	$13M
Qube Research & Technologies LtdHedge fund	254K	$12.2M
Jennison Associates LLCActive manager	197K	$9.4M
Albar Capital Partners LLP	194K	$9.3M
Jump Financial, LLC	115K	$5.5M
Machina Capital S.A.S.	78K	$3.7M
Atom Investors LP	73K	$3.5M
Xcelsior Advisor Partners LLC	64K	$3.1M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Balyasny Asset Management L.P.Hedge fund	1.3M	$62.2M
Arrowstreet Capital, Limited PartnershipHedge fund	1.2M	$53.6M
Lighthouse Investment Partners, LLCHedge fund	210K	$9.8M
Jain Global LLCHedge fund	180K	$8.4M
Taproot Management LP	162K	$7.5M
Lbp Am SA	117K	$5.4M
Freemont Management S.A.	86K	$4M
Qsemble Capital Management, LP	82K	$3.8M
Great Lakes Advisors, LLC	53K	$2.5M
Genus Capital Management Inc.	50K	$2.3M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 1,454
Ten largest holders: 48.8%
Index fund managers: 42.1%
Active managers and hedge funds: 7.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	34	37	12	9	−9.5M	−12.1%
Index fund managers	9	3	0	0	+6.7M	+1.6%
Other institutions	638	562	104	71	−2.2M	−0.5%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Fastenal.

Only managers that filed a holdings report for both quarters are compared (1,513 here). 46 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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