13-F holdings, Q2 2026
Boston Partners
A 13-F is the report large US investment managers file with the SEC each quarter, listing the stocks they held at quarter end.
- Reported value
- $112.6B
- Positions
- 802
- Filed
- Data as of
These holdings are as of , 133 days ago.
13-Fs for Q3 2026 are due by .
See this manager's Holder IQ and how the book overlaps yours
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Top holdings
- AMZN$3.1B12,862,015 shares2.7% of the book
- JPM$2.4B7,360,355 shares2.1% of the book
- USFD$1.9B18,606,610 shares1.7% of the book
- AMAT$1.9B2,636,446 shares1.7% of the book
- FLEX$1.4B8,615,342 shares1.2% of the book
- COR$1.4B4,868,782 shares1.2% of the book
- CRH$1.4B12,915,788 shares1.2% of the book
- MU$1.4B1,202,381 shares1.2% of the book
- DELL$1.4B3,172,196 shares1.2% of the book
- MCHP$1.3B14,522,587 shares1.2% of the book
What changed this quarter
95 new positions and 64 sold out, against Q1 2026. Added and trimmed positions use the change in split-adjusted shares at the Q2 2026 implied price; full exits use their Q1 2026 reported value, not sale proceeds.
Largest buys
- AMZN
AMAZON COM INC
+$1.8B
+136% shares
Your stake and evidence for AMZN
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q1 2026 and Q2 2026.
Displayed change: +$1.8B. The current book reports 12,862,015 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
12,862,015 current shares − 5,449,163 prior shares on the same basis = +7,412,852 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 1771091314.52044 USD. Current reported shares: 12862015. Prior shares on current basis: 5449163.
- SO
SOUTHERN CO
+$587.2M
+15,069.1% shares
Your stake and evidence for SO
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q1 2026 and Q2 2026.
Displayed change: +$587.2M. The current book reports 6,174,426 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
6,174,426 current shares − 40,704 prior shares on the same basis = +6,133,722 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 587154889.724502 USD. Current reported shares: 6174426. Prior shares on current basis: 40704.
- TPR
TAPESTRY INC
+$518.1M
New
Your stake and evidence for TPR
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
A position newly appears in the Q2 2026 book.
Displayed change: +$518.1M. The current book reports 3,551,183 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
A new position uses its current quarter's reported dollar value; this is not the amount spent buying it.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 518085185 USD. Current reported shares: 3551183. Prior shares on current basis: not recorded.
- NVDA
NVIDIA CORPORATION
+$461.9M
+137.3% shares
Your stake and evidence for NVDA
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q1 2026 and Q2 2026.
Displayed change: +$461.9M. The current book reports 3,977,013 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
3,977,013 current shares − 1,675,934 prior shares on the same basis = +2,301,079 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 461857079.0102663 USD. Current reported shares: 3977013. Prior shares on current basis: 1675934.
- CRH
CRH PLC
+$418M
+43.4% shares
Your stake and evidence for CRH
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares increased between Q1 2026 and Q2 2026.
Displayed change: +$418M. The current book reports 12,915,788 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
12,915,788 current shares − 9,003,965 prior shares on the same basis = +3,911,823 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: 417980003.37714577 USD. Current reported shares: 12915788. Prior shares on current basis: 9003965.
Largest sells
- BND
VANGUARD BD INDEX FDS
−$115.6B
-100% shares
Your stake and evidence for BND
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q1 2026 and Q2 2026.
Displayed change: −$115.6B. The current book reports 249 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
249 current shares − 616,170 prior shares on the same basis = -615,921 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -115601178534.26506 USD. Current reported shares: 249. Prior shares on current basis: 616170.
- MU
MICRON TECHNOLOGY INC
−$1.8B
-57.1% shares
Your stake and evidence for MU
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q1 2026 and Q2 2026.
Displayed change: −$1.8B. The current book reports 1,202,381 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
1,202,381 current shares − 2,802,923 prior shares on the same basis = -1,600,542 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -1831049591.4052498 USD. Current reported shares: 1202381. Prior shares on current basis: 2802923.
- MRVL
MARVELL TECHNOLOGY INC
−$1.3B
-71.6% shares
Your stake and evidence for MRVL
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q1 2026 and Q2 2026.
Displayed change: −$1.3B. The current book reports 1,751,787 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
1,751,787 current shares − 6,165,682 prior shares on the same basis = -4,413,895 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -1297267149.838165 USD. Current reported shares: 1751787. Prior shares on current basis: 6165682.
- KEYS
KEYSIGHT TECHNOLOGIES INC
−$869.5M
-88.4% shares
Your stake and evidence for KEYS
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q1 2026 and Q2 2026.
Displayed change: −$869.5M. The current book reports 325,202 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
325,202 current shares − 2,809,554 prior shares on the same basis = -2,484,352 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -869543108.3071814 USD. Current reported shares: 325202. Prior shares on current basis: 2809554.
- FLEX
FLEXTRONICS INTL LTD
−$703.5M
-33.7% shares
Your stake and evidence for FLEX
What it means for you
This public view does not read your holdings or watchlist; open the member view to check your stake.
Use this to decide what to research, rather than as an instruction to copy a trade.
What happened
Reported shares decreased between Q1 2026 and Q2 2026.
Displayed change: −$703.5M. The current book reports 8,615,342 shares.
Why it can matter
A change between quarter-end disclosures can prompt a question about the manager's exposure. It does not reveal the trade date, the execution price or why the position changed; a full exit is not proof of a bearish decision.
How we got this
For an added or trimmed position, subtract split-adjusted prior shares from current shares, then multiply by the current book's reported value per share; this is not the execution price.
8,615,342 current shares − 12,993,140 prior shares on the same basis = -4,377,798 shares.
Comparable books exclude identified CUSIP, share-basis and new-security events from trades. Exit-size bands describe prior book weight, not the manager's intent.
Where the data comes from
SEC 13F quarter-end holdings for Q1 2026 and Q2 2026; these delayed disclosures omit shorts and many other assets.
Current source filed .
Technical details
Reported dollar change: -703476983.762252 USD. Current reported shares: 8615342. Prior shares on current basis: 12993140.
What was sold out, by size
- 12 small, between 0.015% and 0.25%
- 52 slivers under 0.015%, often rounding or client flows
Not counted as trades: HONA (newly listed or spun off), YSWY (newly listed or spun off), LFTO (newly listed or spun off).
All of this comes from the filer's public SEC filings. A 13-F shows long positions in US-listed securities at quarter end and can leave out short positions, cash and non-US holdings, so it is not the whole portfolio. This is filing data, not investment advice.