Jefferies Financial Group Inc.
Position in TMO — Thermo Fisher Scientific Inc.
CIK 96223
NEW YORK, NY
Position in TMO
as of Jun 30, 2026
· filed Aug 17, 2026
Position Value
$96,932,942
+$69,954,827 QoQ
Shares Held
193,340
+252.3% QoQ
Ownership
0.052%
of shares outstanding
% of Portfolio
1.09%
of 13F equity value
Holder Rank
#198
of 2,617 holders
Holding Since
Dec 2022
15 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in TMO Over Time
Shares Held
Position Value (USD)
Derivatives in TMO
reported options exposure · as of Dec 31, 2025CallValue
$24,105,120
CallShares
41,600
PutValue
$1,738,350
PutShares
3,000
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Diagnostics & Research
Healthcare · as of Jun 30, 2026Jefferies Financial Group Inc. holds $239,574,818 across 21 Diagnostics & Research names. TMO ranks #1 (40.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | TMO |
Thermo Fisher Scientific Inc.
This page
|
193,340 | $96,932,942 | |
| 2 | GRAL |
GRAIL, Inc.
|
724,000 | $49,427,480 | |
| 3 | QGEN |
Qiagen N.V.
|
618,798 | $24,195,001 | |
| 4 | IQV |
Iqvia Holdings Inc.
|
84,902 | $16,404,764 | |
| 5 | CSTL |
Castle Biosciences Inc
|
647,391 | $15,440,275 | |
| 6 | A |
Agilent Technologies, Inc.
|
63,180 | $8,392,199 | |
| 7 | GH |
Guardant Health, Inc.
|
35,629 | $5,345,418 | |
| 8 | CRL |
Charles River Laboratories International, Inc.
|
18,270 | $4,143,453 |
All Filings in TMO
Export CSV
40 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $96,932,942 | 193,340 | Shares | Defined | 2026-08-17 | |
| 2026-03-31 | $26,978,115 | 54,886 | Shares | Defined | 2026-05-08 | |
| 2025-12-31 | $24,105,120 | 41,600 | Call | Defined | 2026-02-09 | |
| 2025-12-31 | $840,202 | 1,450 | Shares | Defined | 2026-02-09 | |
| 2025-12-31 | $1,738,350 | 3,000 | Put | Defined | 2026-02-09 | |
| 2025-09-30 | $20,176,832 | 41,600 | Call | Defined | 2025-11-13 | |
| 2025-09-30 | $413,237 | 852 | Shares | Defined | 2025-11-13 | |
| 2025-09-30 | $1,455,060 | 3,000 | Put | Defined | 2025-11-13 | |
| 2025-06-30 | $1,216,380 | 3,000 | Put | Defined | 2025-08-12 | |
| 2025-06-30 | $877,415 | 2,164 | Shares | Defined | 2025-08-12 | |
| 2025-06-30 | $16,867,136 | 41,600 | Call | Defined | 2025-08-12 | |
| 2025-03-31 | $20,700,160 | 41,600 | Call | Defined | 2025-05-08 | |
| 2025-03-31 | $1,492,800 | 3,000 | Put | Defined | 2025-05-08 | |
| 2025-03-31 | $8,147,702 | 16,374 | Shares | Defined | 2025-05-08 | |
| 2024-12-31 | $21,641,568 | 41,600 | Call | Defined | 2025-02-27 | |
| 2024-12-31 | $14,618,463 | 28,100 | Put | Defined | 2025-02-27 | |
| 2024-12-31 | $5,588,310 | 10,742 | Shares | Defined | 2025-02-27 | |
| 2024-09-30 | $25,732,512 | 41,600 | Call | Defined | 2024-11-14 | |
| 2024-09-30 | $7,936,871 | 12,831 | Shares | Defined | 2024-11-14 | |
| 2024-09-30 | $17,381,817 | 28,100 | Put | Defined | 2024-11-14 | |
| 2024-06-30 | $24,110,800 | 43,600 | Call | Defined | 2024-08-13 | |
| 2024-06-30 | $19,023,200 | 34,400 | Put | Defined | 2024-08-13 | |
| 2024-06-30 | $8,631,224 | 15,608 | Shares | Defined | 2024-08-13 | |
| 2024-03-31 | $27,200,628 | 46,800 | Call | Defined | 2024-05-13 | |
| 2024-03-31 | $6,417,139 | 11,041 | Shares | Defined | 2024-05-13 | |
| 2024-03-31 | $19,528,656 | 33,600 | Put | Defined | 2024-05-13 | |
| 2023-12-31 | $2,547,792 | 4,800 | Call | Defined | 2024-05-06 | |
| 2023-12-31 | $16,098,860 | 30,330 | Shares | Defined | 2024-05-06 | |
| 2023-12-31 | $18,630,729 | 35,100 | Put | Defined | 2024-05-06 | |
| 2023-09-30 | $4,504,913 | 8,900 | Call | Defined | 2023-11-14 | |
| 2023-09-30 | $4,344,457 | 8,583 | Shares | Defined | 2023-11-14 | |
| 2023-09-30 | $14,020,909 | 27,700 | Put | Defined | 2023-11-14 | |
| 2023-06-30 | $8,947,490 | 17,149 | Shares | Defined | 2023-08-14 | |
| 2023-06-30 | $7,043,625 | 13,500 | Put | Defined | 2023-08-14 | |
| 2023-03-31 | $3,078,968 | 5,342 | Shares | Defined | 2023-05-15 | |
| 2023-03-31 | $10,432,297 | 18,100 | Put | Defined | 2023-05-15 | |
| 2023-03-31 | $69,049,126 | 119,800 | Call | Defined | 2023-05-15 | |
| 2022-12-31 | $59,529,589 | 108,100 | Put | Defined | 2023-09-21 | |
| 2022-12-31 | $2,533,174 | 4,600 | Call | Defined | 2023-09-21 | |
| 2022-12-31 | $47,993,184 | 87,151 | Shares | Defined | 2023-09-21 | |
| No filing history on record for this holder in this stock. | ||||||