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Institutional Ownership · SEC Form 13F

Who owns Insulet (PODD)


Which tracked institutional funds hold PODD, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See PODD company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

676
Institutional holders
68M
Shares held (tracked funds)
97.3%
Of shares outstanding

How the tape is positioned

118 tracked funds added or opened PODD while 318 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

PODD’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes PODD more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in PODD divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 676 tracked filers holding PODD, 392 increased or opened the position and 434 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in PODD between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 36

  • Jupiter Topco LLC$42M
  • Defilade Capital Management, L.P.$27M
  • TUDOR INVESTMENT CORP ET AL$21M
  • DF DENT & CO INC$21M
  • Nearwater Capital Markets, Ltd$14M
  • ALTA FOX CAPITAL MANAGEMENT, LLC$13M

Full exits 88

  • T. Rowe Price Investment Management, Inc.$381M
  • MARSHALL WACE, LLP$127M
  • Amundi$94M
  • SG Americas Securities, LLC$67M
  • ACADIAN ASSET MANAGEMENT LLC$54M
  • AustralianSuper Pty Ltd$30M

Largest adds

  • TWO SIGMA INVESTMENTS, LP$130M
  • CITADEL ADVISORS LLC$94M
  • Vestal Point Capital, LP$91M
  • MILLENNIUM MANAGEMENT LLC$69M
  • FRONTIER CAPITAL MANAGEMENT CO LLC$59M
  • WESTFIELD CAPITAL MANAGEMENT CO LP$53M

Largest trims

  • FMR LLC$686M
  • Capital Research Global Investors$327M
  • AMERICAN CENTURY COMPANIES INC$316M
  • VANGUARD CAPITAL MANAGEMENT LLC$272M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$256M
  • STATE STREET CORP$152M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
BlackRock, Inc. added6,690,192$1.0B10.8%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC trimmed4,525,333$689M7.3%2026-Q2
STATE STREET CORP added3,197,555$487M5.2%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC trimmed3,075,932$468M5.0%2026-Q2
AQR CAPITAL MANAGEMENT LLC added2,455,135$374M4.0%2026-Q2
BAILLIE GIFFORD & CO added2,042,313$311M3.3%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC trimmed2,003,861$304M3.2%2026-Q2
TWO SIGMA INVESTMENTS, LP added1,903,734$290M3.1%2026-Q2
Invesco Ltd. added1,694,651$258M2.7%2026-Q2
MORGAN STANLEY added1,479,050$225M2.4%2026-Q2
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added1,471,069$224M2.4%2026-Q2
Clearbridge Investments, LLC trimmed1,319,381$201M2.1%2026-Q2
Soleus Capital Management, L.P. added1,049,000$160M1.7%2026-Q2
NORGES BANK added1,047,986$160M1.7%2026-Q2
JUPITER ASSET MANAGEMENT LTD added1,026,691$156M1.7%2026-Q2
FMR LLC trimmed964,297$147M1.6%2026-Q2
MILLENNIUM MANAGEMENT LLC added865,387$132M1.4%2026-Q2
FIL Ltd trimmed840,026$128M1.4%2026-Q2
GOLDMAN SACHS GROUP INC trimmed818,265$125M1.3%2026-Q2
CITADEL ADVISORS LLC added796,746$121M1.3%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed773,361$118M1.2%2026-Q2
FEDERATED HERMES, INC. trimmed702,194$107M1.1%2026-Q2
Vestal Point Capital, LP added670,000$102M1.1%2026-Q2
Qube Research & Technologies Ltd added663,968$101M1.1%2026-Q2
NORTHERN TRUST CORP trimmed649,908$99M1.0%2026-Q2
FRONTIER CAPITAL MANAGEMENT CO LLC added622,506$95M1.0%2026-Q2
NORDEA INVESTMENT MANAGEMENT AB added618,174$95M1.0%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added597,871$91M1.0%2026-Q2
JPMORGAN CHASE & CO added595,123$94M1.0%2026-Q2
DIMENSIONAL FUND ADVISORS LP added547,577$83M0.9%2026-Q2
UBS Group AG added543,030$83M0.9%2026-Q2
Man Group plc trimmed517,217$79M0.8%2026-Q2
AMERIPRISE FINANCIAL INC added506,374$77M0.8%2026-Q2
Alecta Tjanstepension Omsesidigt added469,400$71M0.8%2026-Q2
Vinva Investment Management Ltd added430,460$69M0.7%2026-Q2
D. E. Shaw & Co., Inc. added426,520$65M0.7%2026-Q2
BANK OF AMERICA CORP /DE/ added426,409$65M0.7%2026-Q2
Bank of New York Mellon Corp added398,130$61M0.6%2026-Q2
VANGUARD FIDUCIARY TRUST CO trimmed398,017$61M0.6%2026-Q2
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed367,746$56M0.6%2026-Q2
WESTFIELD CAPITAL MANAGEMENT CO LP added352,717$54M0.6%2026-Q2
Stephens Investment Management Group LLC added337,747$51M0.5%2026-Q2
DEUTSCHE BANK AG\ trimmed335,980$51M0.5%2026-Q2
Quantinno Capital Management LP added316,922$48M0.5%2026-Q2
Legal & General Group Plc trimmed311,452$47M0.5%2026-Q2
Nuveen, LLC trimmed289,821$44M0.5%2026-Q2
Aberdeen Group plc added287,840$44M0.5%2026-Q2
Jupiter Topco LLC new275,313$42M0.4%2026-Q2
VOLORIDGE INVESTMENT MANAGEMENT, LLC added273,682$42M0.4%2026-Q2
Squarepoint Ops LLC added267,642$41M0.4%2026-Q2
WORLDQUANT MILLENNIUM ADVISORS LLC trimmed266,689$41M0.4%2026-Q2
Artisan Partners Limited Partnership trimmed260,245$40M0.4%2026-Q2
RAYMOND JAMES FINANCIAL INC trimmed249,250$38M0.4%2026-Q2
Allianz Asset Management GmbH247,097$52M0.5%2026-Q2
Chicago Capital, LLC added241,803$37M0.4%2026-Q2
ROYAL BANK OF CANADA trimmed240,879$37M0.4%2026-Q2
BNP PARIBAS ASSET MANAGEMENT Holding S.A. added239,685$36M0.4%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added221,195$34M0.4%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ trimmed214,349$33M0.3%2026-Q2
NOMURA ASSET MANAGEMENT CO LTD added212,280$32M0.3%2026-Q2
LOS ANGELES CAPITAL MANAGEMENT LLC added206,017$31M0.3%2026-Q2
RENAISSANCE TECHNOLOGIES LLC trimmed202,083$31M0.3%2026-Q2
Swiss National Bank trimmed195,300$30M0.3%2026-Q2
CANADA PENSION PLAN INVESTMENT BOARD added186,330$28M0.3%2026-Q2
PARNASSUS INVESTMENTS, LLC added177,819$27M0.3%2026-Q2
Defilade Capital Management, L.P. new176,932$27M0.3%2026-Q2
Mitsubishi UFJ Asset Management Co., Ltd. added173,480$26M0.3%2026-Q2
Capital World Investors added172,712$26M0.3%2026-Q2
Robeco Institutional Asset Management B.V. trimmed172,529$26M0.3%2026-Q2
Caisse de depot et placement du Quebec added170,294$26M0.3%2026-Q2
HSBC HOLDINGS PLC trimmed165,958$25M0.3%2026-Q2
RHUMBLINE ADVISERS added165,210$25M0.3%2026-Q2
FRANKLIN RESOURCES INC added164,969$25M0.3%2026-Q2
Russell Investments Group, Ltd. added163,842$25M0.3%2026-Q2
Universal- Beteiligungs- und Servicegesellschaft mbH trimmed160,405$24M0.3%2026-Q2
Sumitomo Mitsui Trust Group, Inc. trimmed159,997$24M0.3%2026-Q2
CITIGROUP INC added158,903$24M0.3%2026-Q2
Bridgewater Associates, LP added156,413$24M0.3%2026-Q2
TREMBLANT CAPITAL GROUP added156,111$24M0.3%2026-Q2
Capital Research Global Investors trimmed155,313$24M0.3%2026-Q2
Hudson Bay Capital Management LP added155,000$24M0.3%2026-Q2
Candriam S.C.A. added151,100$23M0.2%2026-Q2
PFA Pension, Forsikringsaktieselskab added149,332$23M0.2%2026-Q2
Vanguard Global Advisers, LLC trimmed149,005$23M0.2%2026-Q2
Eversept Partners, LP added148,816$23M0.2%2026-Q2
Korea Investment CORP added145,651$22M0.2%2026-Q2
ALGERT GLOBAL LLC added144,584$22M0.2%2026-Q2
CAPITAL FUND MANAGEMENT S.A. added144,303$22M0.2%2026-Q2
TUDOR INVESTMENT CORP ET AL added140,151$21M0.2%2026-Q2
DF DENT & CO INC new138,249$21M0.2%2026-Q2
SEI INVESTMENTS CO trimmed136,399$21M0.2%2026-Q2
Parkman Healthcare Partners LLC trimmed131,378$20M0.2%2026-Q2
AMI ASSET MANAGEMENT CORP trimmed129,815$20M0.2%2026-Q2
Bellevue Group AG trimmed127,498$19M0.2%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd added127,119$19M0.2%2026-Q2
TD Asset Management Inc trimmed124,164$19M0.2%2026-Q2
SEB Asset Management AB added122,141$19M0.2%2026-Q2
WELLS FARGO & COMPANY/MN added121,658$19M0.2%2026-Q2
AMERICAN CENTURY COMPANIES INC trimmed119,351$18M0.2%2026-Q2
ALLIANCEBERNSTEIN L.P. trimmed90,073$19M0.2%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership