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Insulet

812 hedge funds and large institutions have $21.1B invested in Insulet in 2025 Q3 according to their latest regulatory filings, with 108 funds opening new positions, 339 increasing their positions, 243 reducing their positions, and 82 closing their positions.

New
Increased
Maintained
Reduced
Closed

40% more repeat investments, than reductions

Existing positions increased: 339 | Existing positions reduced: 243

32% more first-time investments, than exits

New positions opened: 108 | Existing positions closed: 82

2% more funds holding

Funds holding: 795812 (+17)

4% less capital invested

Capital invested by funds: $22B → $21.1B (-$935M)

2.6% less ownership

Funds ownership: 99.62%97.02% (-2.6%)

25% less funds holding in top 10

Funds holding in top 10: 43 (-1)

48% less call options, than puts

Call options by funds: $98.5M | Put options by funds: $191M

Holders
812
Holders Change
+17
Holders Change %
+2.14%
% of All Funds
10.66%
Holding in Top 10
3
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-25%
% of All Funds
0.04%
New
108
Increased
339
Reduced
243
Closed
82
Calls
$98.5M
Puts
$191M
Net Calls
-$92.2M
Net Calls Change
+$24.3M
Name Holding Trade Value Shares
Change
Change in
Stake
Westfield Capital Management
51
Westfield Capital Management
Massachusetts
$62.2M -$3.56M -11,362 -5%
Millennium Management
52
Millennium Management
New York
$62M -$10.6M -33,761 -14%
Barclays
53
Barclays
United Kingdom
$59.6M +$9.86M +31,480 +19%
Wellington Management Group
54
Wellington Management Group
Massachusetts
$58.5M -$29.3M -93,447 -33%
HSBC Holdings
55
HSBC Holdings
United Kingdom
$56.8M +$2.73M +8,725 +5%
CC
56
Chicago Capital
Illinois
$55.4M +$504K +1,610 +0.9%
AQR Capital Management
57
AQR Capital Management
Connecticut
$53.9M +$21.3M +67,906 +63%
Prudential Financial
58
Prudential Financial
New Jersey
$52.1M +$1.55M +4,955 +3%
Capital World Investors
59
Capital World Investors
California
$51.9M
Kayne Anderson Rudnick Investment Management
60
Kayne Anderson Rudnick Investment Management
California
$51.6M -$4.12M -13,162 -7%
Sumitomo Mitsui Trust Group
61
Sumitomo Mitsui Trust Group
Japan
$50.3M +$738K +2,356 +1%
AAM
62
AMI Asset Management
California
$49.1M -$915K -2,922 -2%
Wells Fargo
63
Wells Fargo
California
$48.5M +$11.8M +37,762 +32%
Aberdeen Group
64
Aberdeen Group
United Kingdom
$47.8M +$3.63M +11,571 +8%
RhumbLine Advisers
65
RhumbLine Advisers
Massachusetts
$47.1M -$796K -2,540 -2%
Parnassus Investments
66
Parnassus Investments
California
$46.5M +$47.2M +150,699 New
Baird Financial Group
67
Baird Financial Group
Wisconsin
$44.3M -$13.9M -44,522 -24%
William Blair & Company
68
William Blair & Company
Illinois
$44.3M -$6.32M -20,182 -12%
SEI Investments
69
SEI Investments
Pennsylvania
$44.1M +$1.64M +5,245 +4%
SIMG
70
Stephens Investment Management Group
Texas
$43.5M +$2.18M +6,971 +5%
Mitsubishi UFJ Asset Management
71
Mitsubishi UFJ Asset Management
Japan
$43M +$1.54M +4,920 +4%
CI Investments Inc
72
CI Investments Inc
Ontario, Canada
$42.5M +$40M +127,789 +1,281%
Envestnet Asset Management
73
Envestnet Asset Management
Illinois
$42M +$788K +2,514 +2%
Assenagon Asset Management
74
Assenagon Asset Management
Luxembourg
$40.8M +$21.2M +67,772 +105%
Los Angeles Capital Management
75
Los Angeles Capital Management
California
$39.2M -$12.6M -40,167 -24%

PODD Hedge Fund Activity: Q3 2025 in Review

812 of the 7,619 institutional investors tracked by Wall St. Rank reported a position in Insulet (PODD) for Q3 2025, worth a combined $21.1B — down 4.2% from $22B a quarter earlier.

Buyers outnumbered sellers: 108 funds opened new PODD positions and 82 closed out — a net gain of 26 holders — while 339 added to existing stakes and 243 trimmed.

The largest buyer was Squarepoint, adding an estimated $70.6M. The largest seller was Citadel Advisors, cutting an estimated $131M.

  • 812 institutional investors held Insulet (PODD) as of Q3 2025, up from 795 in Q2 2025.
  • Funds reported $21.1B of Insulet stock for Q3 2025, down 4.2% quarter-over-quarter.
  • 108 funds opened new Insulet positions in Q3 2025 and 82 closed out, a net change of +26 holders.
  • The largest Insulet buyer in Q3 2025 was Squarepoint, an estimated $70.6M added.
  • The largest Insulet seller in Q3 2025 was Citadel Advisors, an estimated $131M sold.

Based on aggregated 13F filings for Q3 2025.