IDXX
IDEXX LABORATORIES INC /DEMarquee-fund ownership over time
This quarter's activity
New positions opened
Positions exited
None.
Current holders
Sorted by tenure (longest first)| Fund | First disclosed | Held | Entry price | Latest close | Return on entry |
|---|---|---|---|---|---|
| Bridgewater Associates re-entered | Q2 2014 | 49Q | $64 | $546 | +753% |
| Renaissance Technologies re-entered | Q3 2024(8Q snapshot) | 7Q | $483 | $546 | +13% |
| Citadel Advisors | Q3 2024(8Q snapshot) | 7Q | $475 | $546 | +15% |
| Two Sigma Investments | Q3 2024(8Q snapshot) | 7Q | $475 | $546 | +15% |
| D.E. Shaw | Q3 2024(8Q snapshot) | 7Q | $475 | $546 | +15% |
| AQR Capital Management | Q3 2024(8Q snapshot) | 7Q | $475 | $546 | +15% |
| Millennium Management | Q3 2024(8Q snapshot) | 7Q | $475 | $546 | +15% |
| Point72 Asset Management re-entered | Q4 2024(8Q snapshot) | 6Q | $424 | $546 | +29% |
“Return on entry” is the price-only move from the fund's first disclosure to today — it ignores any adds, trims, or dividends. A fund that built its position over multiple quarters has a true cost basis somewhere between entry price and latest close; this figure is the upper bound.
Past holders
Funds that exited at some point| Fund | Last entry | Exited | Entry → Exit | Return |
|---|---|---|---|---|
| Maverick Capital 5× in & out | Q1 2024 | Q2 2024 | → $549 | -2% |
Insider activity
Form 4 — officers, directors, 10%+ ownersFiled within two business days of each transaction by anyone with material insider status at IDEXX LABORATORIES INC /DE. Pair with the holders table above as a sanity check: heavy insider buying alongside marquee-fund accumulation is the strongest accumulation signal; heavy insider selling alongside fund exits is the strongest distribution signal.
30d / 90d windows measured from Jun 2, 2026 — the most recent Form 4 on file — not from today.
- Form 40000874716-26-000114Jun 2, 2026
- Form 40000874716-26-000107May 14, 2026
- Form 40000874716-26-000106May 14, 2026
- Form 40000874716-26-000105May 14, 2026
- Form 40000874716-26-000104May 14, 2026
- Form 40000874716-26-000103May 14, 2026
- Form 40000874716-26-000102May 14, 2026
- Form 40000874716-26-000101May 14, 2026
- Form 40000874716-26-000100May 14, 2026
- Form 40000874716-26-000099May 14, 2026
- Form 40000874716-26-000088May 11, 2026
- Form 40000874716-26-000087May 11, 2026
- Form 40000874716-26-000086May 11, 2026
- Form 40000874716-26-000085May 11, 2026
- Form 40000874716-26-000084May 11, 2026
Fundamentals
XBRL · IDEXX LABORATORIES INC /DEAnnual figures sourced directly from IDEXX LABORATORIES INC /DE's 10-K / 10-Q filings via SEC EDGAR XBRL. Latest fiscal year and the year-over-year change, with up to ten years of history.
Recent SEC filings
10-K · 10-Q · 8-K · 13D/G · proxyThe most recent material filings for IDEXX LABORATORIES INC /DE — earnings, material events, ownership disclosures, proxy statements. Form 4 insider activity is shown in the panel above.
- 8-KMaterial eventMay 15, 2026
- 10-QQuarterly reportMay 5, 2026
- 8-KFORM 8-KMay 5, 2026
- DEF 14AProxy statementMar 27, 2026
- 8-KFORM 8-KMar 26, 2026
- 10-KAnnual reportFeb 20, 2026
- 8-KMaterial eventFeb 13, 2026
- 8-KFORM 8-KFeb 2, 2026
- 8-KFORM 8-KJan 13, 2026
- 8-KFORM 8-KNov 13, 2025
- 10-QQuarterly reportNov 3, 2025
- 8-KFORM 8-KNov 3, 2025
- 8-KFORM 8-KOct 7, 2025
- 10-QQuarterly reportAug 4, 2025
- 8-KFORM 8-KAug 4, 2025
Trade history
Every open→close lifecycle across tracked funds| Fund | Open date | Close date | Open price | Close price / current | Return |
|---|---|---|---|---|---|
| Renaissance Technologies | Q2 2026 | open | $533 | $546 | +2% |
| Point72 Asset Management | Q1 2026 | open | $626 | $546 | -13% |
| Point72 Asset Management | Q4 2024 | Q1 2025 | $424 | $445 | +5% |
| Citadel Advisors | Q3 2024 | open | $475 | $546 | +15% |
| Two Sigma Investments | Q3 2024 | open | $475 | $546 | +15% |
| D.E. Shaw | Q3 2024 | open | $475 | $546 | +15% |
| AQR Capital Management | Q3 2024 | open | $475 | $546 | +15% |
| Millennium Management | Q3 2024 | open | $475 | $546 | +15% |
| Renaissance Technologies | Q3 2024 | Q2 2025 | $483 | $509 | +6% |
| Maverick Capital | Q1 2024 | Q2 2024 | $561 | $549 | -2% |
| Maverick Capital | Q3 2023 | Q4 2023 | $508 | $454 | -11% |
| Maverick Capital | Q4 2022 | Q1 2023 | $428 | $504 | +18% |
| Bridgewater Associates | Q4 2020 | open | $454 | $554 | +22% |
| Bridgewater Associates | Q2 2020 | Q3 2020 | $295 | $385 | +30% |
| Maverick Capital | Q1 2020 | Q4 2021 | $289 | $619 | +114% |
| Bridgewater Associates | Q4 2019 | Q1 2020 | $259 | $285 | +10% |
| Bridgewater Associates | Q1 2019 | Q2 2019 | $210 | $246 | +17% |
| Bridgewater Associates | Q2 2018 | Q4 2018 | $209 | $199 | -5% |
| Bridgewater Associates | Q4 2017 | Q1 2018 | $148 | $175 | +19% |
| Maverick Capital | Q3 2017 | Q1 2018 | $155 | $175 | +13% |
| Bridgewater Associates | Q3 2015 | Q1 2016 | $77 | $67 | -13% |
| Bridgewater Associates | Q4 2014 | Q1 2015 | $76 | $79 | +3% |
| Bridgewater Associates | Q2 2014 | Q3 2014 | $64 | $63 | -1% |
- Covers only the 27 marquee funds tracked here, not the full institutional universe. A “0 holders” reading does not mean unowned.
- Heavy funds (Renaissance Technologies, Citadel Advisors, Soros Fund Management, Two Sigma Investments, D.E. Shaw, AQR Capital Management, Millennium Management, Point72 Asset Management) use 8-quarter snapshots, so their pre-2024 history is missing.
- “Current” reflects each fund's most recent 13F — filings lag the actual trade by up to 45 days; positions shown may have changed since.
- Cost = price at the entry filing date. Re-entered positions show the most recent open lot.
- Options, ADRs, and unmapped CUSIPs are excluded from the follower-backtest pipeline that produces these snapshots, so certain holding types won't appear here.