Janus Henderson Mortg Backed
$44.19-0.1%
+$1.4B
Net Activity
+21.50% total shares
Institutions Holding
271
Popularity Rank
#2328
Avg Weight
0.64%
Total Value
$7.1B
271 institutions currently hold JMBS, with 179 net buyers and 104 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
104
Net Buying Institutions
179
Top 5 by Value
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Across its top 20 institutional holders, JMBS's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 9/100, avg. turnover score 26/100).
JMBS ranks #2328 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
JMBS is a top-conviction position for Towneley Capital Management, Inc / DE — at 5.5% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in JMBS belongs to Morgan Stanley, but the position matters far more to Towneley Capital Management, Inc / DE, who has 5.5% 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.
Morgan Stanley has added to its JMBS position for two straight quarters, increasing it by $213.2M to reach $1.4B today.
Parallel Advisors, LLC has trimmed its JMBS position for two straight quarters, cutting it by $53.1M while still holding $15.8M.
JMBS is down 0.1% today, but institutions show net buying of $1.4B this quarter — a divergence between today's price move and the underlying institutional flow.
+$1.6B
Total Buy Value
$173.0M
Total Sell Value
179
Net Buyers
104
Net Sellers
JMBS
Q2 2026
Top 5 Institutional Movers
+$84.1M
-$60.9M
+$56.1M
-$20.6M
JMBS 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 2026-06-30 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 |
|---|---|---|---|
| Buy | John Boozman Senate | 2026-05-27 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-05-13 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-05-13 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2026-02-06 | $1K–$15K |
| Buy | John Boozman Senate | 2026-01-23 | $1K–$15K |
| Buy | John Boozman Senate | 2025-11-21 | $1K–$15K |
| Sell (Partial) | John Boozman Senate | 2025-09-16 | $1K–$15K |
| Buy | John Boozman Senate | 2025-08-01 | $1K–$15K |
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
47103U852
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,110
Total reported value
$712.5B
Held by 4110 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,088
Total reported value
$390.2B
Held by 4088 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,062
Total reported value
$377.6B
Held by 4062 institutions — one of the most-tracked stocks on AlphaSMO
Access JMBS's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/JMBSCLI
npx alphasmo stocks get JMBS