Calamos Advisors LLC

SEC CIK: 0001316507
Latest filing: Jul 31, 2026

SEC filings (opens in a new tab)

TMO holding history

Thermo Fisher Scientific Inc. in every 13F filed by Calamos Advisors LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

TMO overview All 13F holders of TMO Full Q2 2026 holdings

Shares (Q2 2026): 115,172
Value: $57.7M
% of portfolio: 0.2%
Quarters held: 22; Since Q1 2021

Holdings of TMO by Calamos Advisors LLC, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	115,172	$57.7M	0.2%	−24,058−17.3%	Reduced	Holders
Q1 2026	139,230	$68.4M	0.3%	−30,670−18.1%	Reduced	Holders
Q4 2025	169,900	$98.4M	0.4%	+22,200+15.0%	Added	Holders
Q3 2025	147,700	$71.6M	0.3%	+27,510+22.9%	Added	Holders
Q2 2025	120,190	$48.7M	0.2%	−22,500−15.8%	Reduced	Holders
Q1 2025	142,690	$71.0M	0.3%	−3,110−2.1%	Reduced	Holders
Q4 2024	145,800	$75.8M	0.3%	+3,458+2.4%	Added	Holders
Q3 2024	142,342	$88.0M	0.4%	+1,672+1.2%	Added	Holders
Q2 2024	140,670	$77.8M	0.4%	−3,011−2.1%	Reduced	Holders
Q1 2024	143,681	$83.5M	0.4%	+580.0%	Added	Holders
Q4 2023	143,623	$76.2M	0.4%	−23,327−14.0%	Reduced	Holders
Q3 2023	166,950	$84.5M	0.5%	+7,011+4.4%	Added	Holders
Q2 2023	159,939	$83.4M	0.4%	+12,622+8.6%	Added	Holders
Q1 2023	147,317	$84.9M	0.4%	−11,999−7.5%	Reduced	Holders
Q4 2022	159,316	$87.7M	0.4%	−37,886−19.2%	Reduced	Holders
Q3 2022	197,202	$100.0M	0.5%	+10,783+5.8%	Added	Holders
Q2 2022	186,419	$101.3M	0.5%	+9,333+5.3%	Added	Holders
Q1 2022	177,086	$104.6M	0.4%	+4,401+2.5%	Added	Holders
Q4 2021	172,685	$115.2M	0.5%	+40,532+30.7%	Added	Holders
Q3 2021	132,153	$75.5M	0.4%	+35,890+37.3%	Added	Holders
Q2 2021	96,263	$48.6M	0.2%	−12,858−11.8%	Reduced	Holders
Q1 2021	109,121	$49.8M	0.3%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.