CSX Corporation: which funds bought and sold

Institutions that bought and sold CSX 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, 955 institutions that filed 13F reports for both quarters added to or opened positions in CSX, and 731 cut or closed them. Together they sold a net 9.6M shares, −0.7% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 19.2M shares (−6.5%); index fund managers were net buyers of 4.1M shares (+0.8%). 209 opened a new position and 94 sold out entirely.

Bought, Q2 2026 955 institutions, 209 of them new holders Sold, Q2 2026 731 institutions, 94 of them sold out

Net change, all compared −9.6M shares (−0.7%)

Net change, active managers −19.2M shares (−6.5%), 54 bought, 43 sold

Buyers versus sellers

institutions compared, 2,048

955 bought 362 731 sold

Active managers and hedge funds 54 bought · 43 sold · −19.2M

Index fund managers 7 bought · 5 sold · +4.1M

Other institutions 894 bought · 683 sold · +5.5M

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Voya Investment Management LLC	+6.9M +1467.0%	7.4M	$352M
SG Americas Securities, LLC	+6.4M +545.0%	7.6M	$359M
Citadel Advisors LLC Hedge fund	+4.8M +627.2%	5.5M	$262M
Holocene Advisors, LP Hedge fund	+4.7M +93.2%	9.6M	$458M
Slate Path Capital LP Hedge fund	+4.0M New position	4.0M	$191M
Millennium Management LLC Hedge fund	+3.7M +475.5%	4.5M	$215M
TD Asset Management Inc	+3.0M +382.4%	3.8M	$181M
1832 Asset Management L.P.	+2.9M +933.0%	3.2M	$152M
Squarepoint Ops LLC Hedge fund	+2.6M +323.5%	3.4M	$162M
Pointstate Capital LP Hedge fund	+2.6M New position	2.6M	$121M
Artisan Partners Limited Partnership Active manager	+2.5M New position	2.5M	$120M
State Street Corp Index funds	+2.4M +2.7%	91.5M	$4.3B
Mufg Securities Emea PLC	+2.4M +594.6%	2.8M	$133M
Amundi	+2.2M +19.1%	14.0M	$664M
Balyasny Asset Management L.P. Hedge fund	+2.1M +448.1%	2.6M	$125M
Freestone Grove Partners LP Hedge fund	+2.1M New position	2.1M	$99.3M
Royal Bank Of Canada	+1.7M +8.6%	21.6M	$1B
Schonfeld Strategic Advisors LLC Hedge fund	+1.5M +855.4%	1.7M	$81.7M
Westfield Capital Management Co LP Active manager	+1.5M +90.2%	3.2M	$150M
Mirae Asset Global Etfs Holdings Ltd.	+1.4M +12.4%	13.1M	$622M

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Citadel Advisors LLC Hedge fund	+4.8M +627.2%	5.5M	$262M
Holocene Advisors, LP Hedge fund	+4.7M +93.2%	9.6M	$458M
Slate Path Capital LP Hedge fund	+4.0M New position	4.0M	$191M
Millennium Management LLC Hedge fund	+3.7M +475.5%	4.5M	$215M
Squarepoint Ops LLC Hedge fund	+2.6M +323.5%	3.4M	$162M
Pointstate Capital LP Hedge fund	+2.6M New position	2.6M	$121M
Artisan Partners Limited Partnership Active manager	+2.5M New position	2.5M	$120M
Balyasny Asset Management L.P. Hedge fund	+2.1M +448.1%	2.6M	$125M
Freestone Grove Partners LP Hedge fund	+2.1M New position	2.1M	$99.3M
Schonfeld Strategic Advisors LLC Hedge fund	+1.5M +855.4%	1.7M	$81.7M

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Viking Global Investors LP Hedge fund	−18.7M Sold out	0	—
Lazard Asset Management LLC Active manager	−18.3M −99.7%	52K	$2.5M
Bank Of New York Mellon Corp	−8.6M −30.0%	20.0M	$950M
Bank Of America Corp	−8.5M −20.2%	33.6M	$1.6B
Price T Rowe Associates Inc Active manager	−5.3M −6.9%	70.9M	$3.4B
Adage Capital Partners Gp, L.L.C. Hedge fund	−5.0M −70.2%	2.1M	$100M
Jpmorgan Chase & Co	−3.4M −8.6%	36.3M	$1.7B
Alliancebernstein L.P. Active manager	−3.1M −28.1%	7.8M	$322M
Perpetual Ltd	−2.6M −56.8%	2.0M	$93.1M
Victory Capital Management Inc Active manager	−2.3M −20.4%	9.1M	$431M
FMR LLC Active manager	−1.8M −12.2%	13.3M	$633M
Cartenna Capital, LP	−1.6M Sold out	0	—
Dimensional Fund Advisors LP	−1.6M −6.7%	22.3M	$1.1B
Goldman Sachs Group Inc	−1.5M −7.7%	18.1M	$862M
Caisse De Depot Et Placement Du Quebec	−1.5M −56.9%	1.1M	$53.5M
Manufacturers Life Insurance Company, The	−1.3M −44.8%	1.7M	$78.9M
Mitsubishi Ufj Trust & Banking Corp	−1.3M −22.6%	4.4M	$209M
Maj Invest Holding A/S	−1.1M −29.6%	2.5M	$120M
American Century Companies Inc Active manager	−1.0M −9.7%	9.5M	$449M
Magellan Asset Management Ltd Active manager	−956K −51.7%	891K	$42.4M

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Viking Global Investors LP Hedge fund	−18.7M Sold out	0	—
Lazard Asset Management LLC Active manager	−18.3M −99.7%	52K	$2.5M
Price T Rowe Associates Inc Active manager	−5.3M −6.9%	70.9M	$3.4B
Adage Capital Partners Gp, L.L.C. Hedge fund	−5.0M −70.2%	2.1M	$100M
Alliancebernstein L.P. Active manager	−3.1M −28.1%	7.8M	$322M
Victory Capital Management Inc Active manager	−2.3M −20.4%	9.1M	$431M
FMR LLC Active manager	−1.8M −12.2%	13.3M	$633M
American Century Companies Inc Active manager	−1.0M −9.7%	9.5M	$449M
Magellan Asset Management Ltd Active manager	−956K −51.7%	891K	$42.4M
Westwood Holdings Group Inc Active manager	−860K −51.7%	803K	$38.2M

New positions

largest by value

Institution	Shares	Value June 30, 2026
Slate Path Capital LPHedge fund	4.0M	$191M
Pointstate Capital LPHedge fund	2.6M	$121M
Artisan Partners Limited PartnershipActive manager	2.5M	$120M
Freestone Grove Partners LPHedge fund	2.1M	$99.3M
Interval Partners, LPHedge fund	1.0M	$48.5M
Trexquant Investment LPHedge fund	634K	$30.1M
Adams Diversified Equity Fund, Inc.	477K	$22.7M
Marshall Wace, LLPHedge fund	430K	$20.4M
Polar Asset Management Partners Inc.	221K	$10.5M
Barometer Capital Management Inc.	213K	$10.1M

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Viking Global Investors LPHedge fund	18.7M	$767M
Cartenna Capital, LP	1.6M	$67.7M
Encompass Capital Advisors LLC	786K	$32.3M
Mn Services Vermogensbeheer B.V.	300K	$12.3M
Summittx Capital, L.P.	192K	$7.9M
Atom Investors LP	154K	$6.3M
Ruffer LLPActive manager	148K	$6.1M
Taproot Management LP	122K	$5M
Highland Capital Management, LLC	121K	$5M
Capstone Investment Advisors, LLCHedge fund	97K	$4M

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 1,986
Ten largest holders: 46.4%
Index fund managers: 34.2%
Active managers and hedge funds: 18.7%

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	54	43	17	5	−19.2M	−6.5%
Index fund managers	7	5	0	0	+4.1M	+0.8%
Other institutions	894	683	192	89	+5.5M	+0.8%

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 CSX.

Only managers that filed a holdings report for both quarters are compared (2,048 here). 64 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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