Insulet Corporation: which funds bought and sold
Institutions that bought and sold Insulet 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, 406 institutions that filed 13F reports for both quarters added to or opened positions in Insulet, and 383 cut or closed them. Together they added a net 944K shares, +1.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 1.5M shares (−5.6%); index fund managers were net buyers of 45K shares (+0.2%). 79 opened a new position and 135 sold out entirely.
Bought, Q2 2026 406 institutions, 79 of them new holders Sold, Q2 2026 383 institutions, 135 of them sold out
Net change, all compared +944K shares (+1.4%)
Net change, active managers −1.5M shares (−5.6%), 42 bought, 43 sold
Buyers versus sellers
406 bought 57 383 sold
Active managers and hedge funds 42 bought · 43 sold · −1.5M
Index fund managers 7 bought · 5 sold · +45K
Other institutions 357 bought · 335 sold · +2.4M
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | +1.1M +149.7% | 1.9M | $290M |
| AQR Capital Management LLC Hedge fund | +856K +53.6% | 2.5M | $374M |
| Citadel Advisors LLC Hedge fund | +643K +419.3% | 797K | $121M |
| Vestal Point Capital, LP Hedge fund | +619K +1224.1% | 670K | $102M |
| Invesco Ltd. | +598K +54.5% | 1.7M | $258M |
| Millennium Management LLC Hedge fund | +567K +189.8% | 865K | $132M |
| Soleus Capital Management, L.P. Hedge fund | +487K +86.5% | 1.0M | $160M |
| Frontier Capital Management Co LLC Active manager | +450K +260.8% | 623K | $94.8M |
| Westfield Capital Management Co LP Active manager | +351K +20870.1% | 353K | $53.7M |
| Morgan Stanley | +333K +29.1% | 1.5M | $225M |
| Jupiter Asset Management Ltd Active manager | +317K +44.6% | 1.0M | $156M |
| Blackrock, Inc. Index funds | +314K +4.9% | 6.7M | $1B |
| Jpmorgan Chase & Co | +308K +107.2% | 595K | $94.4M |
| D. E. Shaw & Co., Inc. Hedge fund | +293K +219.3% | 427K | $64.9M |
| Squarepoint Ops LLC Hedge fund | +246K +1155.9% | 268K | $40.7M |
| Arrowstreet Capital, Limited Partnership Hedge fund | +241K +19.6% | 1.5M | $224M |
| Ameriprise Financial Inc | +202K +66.5% | 506K | $77.1M |
| Vinva Investment Management Ltd | +202K +88.1% | 430K | $68.5M |
| Voloridge Investment Management, LLC Hedge fund | +190K +226.7% | 274K | $41.7M |
| Acadian Asset Management LLC Active manager | +190K +74.0% | 446K | $67.9M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | +1.1M +149.7% | 1.9M | $290M |
| AQR Capital Management LLC Hedge fund | +856K +53.6% | 2.5M | $374M |
| Citadel Advisors LLC Hedge fund | +643K +419.3% | 797K | $121M |
| Vestal Point Capital, LP Hedge fund | +619K +1224.1% | 670K | $102M |
| Millennium Management LLC Hedge fund | +567K +189.8% | 865K | $132M |
| Soleus Capital Management, L.P. Hedge fund | +487K +86.5% | 1.0M | $160M |
| Frontier Capital Management Co LLC Active manager | +450K +260.8% | 623K | $94.8M |
| Westfield Capital Management Co LP Active manager | +351K +20870.1% | 353K | $53.7M |
| Jupiter Asset Management Ltd Active manager | +317K +44.6% | 1.0M | $156M |
| D. E. Shaw & Co., Inc. Hedge fund | +293K +219.3% | 427K | $64.9M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | −3.0M −75.7% | 964K | $147M |
| Capital Research Global Investors Active manager | −1.5M −90.7% | 155K | $23.6M |
| American Century Companies Inc Active manager | −1.5M −92.5% | 119K | $18.2M |
| Marshall Wace, LLP Hedge fund | −606K Sold out | 0 | — |
| Artisan Partners Limited Partnership Active manager | −433K −62.4% | 260K | $39.6M |
| Voya Investment Management LLC | −428K −93.9% | 28K | $4.2M |
| Vanguard Portfolio Management LLC Index funds | −374K −10.8% | 3.1M | $468M |
| T. Rowe Price Investment Management, Inc. Active manager | −304K −16.7% | 1.5M | $230M |
| Renaissance Technologies LLC Hedge fund | −224K −52.6% | 202K | $30.8M |
| SG Americas Securities, LLC | −217K −68.1% | 102K | $15.5M |
| Freestone Grove Partners LP Hedge fund | −216K −95.5% | 10K | $1.5M |
| Man Group PLC Hedge fund | −199K −27.8% | 517K | $78.7M |
| Worldquant Millennium Advisors LLC Hedge fund | −197K −42.4% | 267K | $40.6M |
| Fil Ltd Active manager | −172K −17.0% | 840K | $128M |
| Australiansuper Pty Ltd | −145K Sold out | 0 | — |
| William Blair Investment Management, LLC Active manager | −139K Sold out | 0 | — |
| Kayne Anderson Rudnick Investment Management LLC Active manager | −108K −100.0% | 5 | $790 |
| Congress Asset Management Co Active manager | −105K Sold out | 0 | — |
| Blair William & Co | −103K −91.6% | 9,491 | $1.4M |
| Wellington Management Group LLP Active manager | −91K −84.5% | 17K | $2.5M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | −3.0M −75.7% | 964K | $147M |
| Capital Research Global Investors Active manager | −1.5M −90.7% | 155K | $23.6M |
| American Century Companies Inc Active manager | −1.5M −92.5% | 119K | $18.2M |
| Marshall Wace, LLP Hedge fund | −606K Sold out | 0 | — |
| Artisan Partners Limited Partnership Active manager | −433K −62.4% | 260K | $39.6M |
| T. Rowe Price Investment Management, Inc. Active manager | −304K −16.7% | 1.5M | $230M |
| Renaissance Technologies LLC Hedge fund | −224K −52.6% | 202K | $30.8M |
| Freestone Grove Partners LP Hedge fund | −216K −95.5% | 10K | $1.5M |
| Man Group PLC Hedge fund | −199K −27.8% | 517K | $78.7M |
| Worldquant Millennium Advisors LLC Hedge fund | −197K −42.4% | 267K | $40.6M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Defilade Capital Management, L.P. | 177K | $26.9M |
| Tudor Investment Corp Et AlHedge fund | 140K | $21.3M |
| Nearwater Capital Markets, Ltd | 90K | $13.7M |
| Alta Fox Capital Management, LLC | 83K | $12.6M |
| Panagora Asset Management IncActive manager | 72K | $11M |
| Voleon Capital Management LPHedge fund | 55K | $8.4M |
| Gds Wealth Management | 53K | $8.1M |
| Counterpoint Mutual Funds LLC | 45K | $6.9M |
| Lazard Asset Management LLCActive manager | 36K | $5.5M |
| Havemeyer Place LP | 30K | $4.5M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Marshall Wace, LLPHedge fund | 606K | $127M |
| Australiansuper Pty Ltd | 145K | $30.5M |
| William Blair Investment Management, LLCActive manager | 139K | $29.2M |
| Congress Asset Management CoActive manager | 105K | $22.1M |
| Gradient Investments LLC | 73K | $15.2M |
| Jennison Associates LLCActive manager | 70K | $14.7M |
| Braun Stacey Associates Inc | 52K | $10.9M |
| Tredje Ap-Fonden | 30K | $6.3M |
| Holocene Advisors, LPHedge fund | 28K | $6M |
| Ithaka Group LLC | 28K | $5.9M |
Who holds the shares
- Institutions reporting
- 719
- Ten largest holders
- 40.8% of 13F-reported shares
- Index fund managers
- 29.9% of 13F-reported shares
- Active managers and hedge funds
- 35.4% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 42 | 43 | 7 | 11 | −1.5M | −5.6% |
| Index fund managers | 7 | 5 | 0 | 0 | +45K | +0.2% |
| Other institutions | 357 | 335 | 72 | 124 | +2.4M | +11.4% |