Loading...
Loading...
Of the 23 tracked institutions holding TMO, 16 have a 3-year clone track record — 12 of them beat the S&P. Average holder's clone alpha: +3.0pt. It's a gauge of who owns the name, not just how many.
Among the 23 tracked institutional investors we monitor, TMO (THERMO FISHER SCIENTIFIC INC) is held with a combined value of $59.67B across 115,280,092 shares. The largest holder is VANGUARD GROUP INC with a position worth $19.78B (0.29% of their portfolio). 3 funds opened new positions in the most recent quarter. 12 funds increased their holdings. 8 funds reduced their position.
Total Institutional Value
$59.67B
Total Shares Held
115,280,092
Institutional Holders
23
% of Shares Outstanding
31.0%
of 371.62M shares · SEC 2026-03-28
Days to Cover
3.0-1.0%
5.30M shares short · FINRA 2026-07-15
Tracked 13F institutions hold 31.0% of TMO's shares outstanding. This is a floor: 13F filings arrive on a ~45-day lag and we track only a subset of institutional filers, so true institutional ownership is higher. Shares-outstanding is the latest SEC cover-page figure (as of 2026-03-28), not a live float.
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
0
$0
4
$2.01M
Total Transactions
4
Last 12 months
| Date | Insider | Code | Type | Shares | Value |
|---|---|---|---|---|---|
| Apr 27, 2026 | Gianluca Pettiti | S | Sale | 400 | $185.06K |
| Mar 11, 2026 | Michael D Shafer | S | Sale | 1,607 | $802.53K |
| Mar 11, 2026 | Michael D Shafer | S | Sale | 1,607 | $802.54K |
| Feb 9, 2026 | Gianluca Pettiti | S | Sale | 400 | $216.48K |
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | $19.78B | 0.29% | +0.9% |
| 2 | BlackRock, Inc. | $14.96B | 0.26% | -0.8% |
| 3 | STATE STREET CORP | $8.23B | 0.28% | +0.7% |
| 4 | FMR LLC | $5.30B | 0.28% | +10.0% |
| 5 | PRICE T ROWE ASSOCIATES INC /MD/ | $3.10B | 0.36% | -18.0% |
| 6 | Capital Research Global Investors | $2.17B | 0.34% | +51.5% |
| 7 | Fisher Asset Management, LLC | $1.40B | 0.48% | +2.1% |
| 8 | Grantham, Mayo, Van Otterloo & Co. LLC | $1.23B | 3.15% | +3.7% |
| 9 | VIKING GLOBAL INVESTORS LP | $819.88M | 2.29% | +110.3% |
| 10 | WELLINGTON MANAGEMENT GROUP LLP | $726.60M | 0.14% | -57.4% |
| Member | Type | Date |
|---|---|---|
| Dan Newhouse | Sell | Jul 10, 2026 |
| Dwight Evans | Sell | May 7, 2026 |
| Alan Armstrong | Buy | Mar 27, 2026 |
| Lisa McClain | Sell |
As of the latest SEC 13F filings, VANGUARD GROUP INC is the largest institutional holder of TMO with a position worth $19.78B, representing 0.29% of their portfolio. In total, 23 institutional investors hold TMO with a combined value of $59.67B.
In the most recent quarter, 3 funds opened a new position in TMO. Additionally, 12 increased their holdings and 8 reduced their positions.
Institutional investors hold $59.67B worth of TMO stock across 23 positions. The largest institutional holder is VANGUARD GROUP INC with $19.78B in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For TMO, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their TMO positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
| Oct 31, 2025 |
| Lisa McClain | Buy | Oct 30, 2025 |
| Lisa McClain | Sell | Oct 30, 2025 |
| Valerie Hoyle | Sell | Sep 23, 2025 |
| Julia Letlow | Buy | Jul 25, 2025 |
Showing 8 of 43. STOCK Act disclosures lag up to 45 days.
Last Close
$568.26
2026-07-24
YTD
-4.1%
70% of 52-week range
