Ishares Russell 1000 ETF
$416.77-1.1%
-$400.1M
Net Activity
-1.91% total shares
Institutions Holding
1558
Popularity Rank
#228
Avg Weight
0.63%
Total Value
$39.1B
1558 institutions currently hold IWB, with 501 net buyers and 626 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
626
Net Buying Institutions
501
Top 5 by Value
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Across its top 20 institutional holders, IWB's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 9/100, avg. turnover score 20/100).
IWB ranks #228 out of 37696 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
IWB is a top-conviction position for MPS Loria Financial Planners, LLC — at 32.7% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in IWB belongs to FMR LLC, but the position matters far more to MPS Loria Financial Planners, LLC, who has 32.7% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
MPS Loria Financial Planners, LLC has added to its IWB position for two straight quarters, increasing it by $24.7M to reach $146.3M today.
Halbert Hargrove Global Advisors, LLC has trimmed its IWB position for two straight quarters, cutting it by $587.9K while still holding $6.2M.
IWB is down 1.1% today, and institutions have been net sellers of $400.1M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
+$1.7B
Total Buy Value
$2.6B
Total Sell Value
501
Net Buyers
626
Net Sellers
IWB
Q2 2026
Top 5 Institutional Movers
+$484.6M
+$353.6M
+$342.5M
+$225.0M
-$197.0M
IWB does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-09-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
| Action | Member | Trade Date | Amount |
|---|---|---|---|
| Sell (Partial) | Markwayne Mullin Senate | 2024-06-13 | $500K–$1.0M |
| Sell (Partial) | Markwayne Mullin Senate | 2024-06-12 | $50K–$100K |
| Sell (Partial) | Markwayne Mullin Senate | 2024-05-08 | $100K–$250K |
No Form 144 planned sale filings in the last 90 days
No Schedule 13D/13G filings for this ticker
No Form 8-K filings for this ticker
464287622
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,278
Total reported value
$2.2T
3254 13F institutions increased their position this quarter
Institutions Holding
6,025
Total reported value
$3.6T
3054 13F institutions increased their position this quarter
Institutions Holding
6,188
Total reported value
$1.8T
2995 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
5,106
Total reported value
$1.1T
Held by 5106 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,949
Total reported value
$485.2B
Held by 4949 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,868
Total reported value
$1.5T
Held by 4868 institutions — one of the most-tracked stocks on AlphaSMO
Access IWB's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/IWBCLI
npx alphasmo stocks get IWB