There is a long list of 186 institutional holders of TMST within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of TMST by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-TMST table below, the initial column indicates the name of each top institutional holder of TMST, with a link to that fund's top holdings. The next columns indicate the amount of TMST stock held by each of the institutional holders of TMST, followed by the TMST position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
BlackRock Inc.	7,062,429	$165,614	12/31/2023
TMST	7,062,429	$165,614	12/31/2023
Dimensional Fund Advisors LP	3,495,010	$81,959	12/31/2023
TMST	3,495,010	$81,959	12/31/2023
Vanguard Group Inc.	3,185,572	$74,702	12/31/2023
TMST	3,185,572	$74,702	12/31/2023
State Street Corp	2,254,114	$52,859	12/31/2023
TMST	2,254,114	$52,859	12/31/2023
Janus Henderson Group PLC	1,609,420	$37,741	12/31/2023
TMST	1,609,420	$37,741	12/31/2023
Medina Singh Partners LLC	1,007,874	$23,635	12/31/2023
TMST	1,007,874	$23,635	12/31/2023
Systematic Financial Management LP	999,448	$23,437	12/31/2023
TMST	999,448	$23,437	12/31/2023
Renaissance Technologies LLC	953,633	$22,363	12/31/2023
TMST	953,633	$22,363	12/31/2023
Royce & Associates LP	925,305	$21,698	12/31/2023
TMST	925,305	$21,698	12/31/2023
Geode Capital Management LLC	877,080	$20,570	12/31/2023
TMST	877,080	$20,570	12/31/2023
Mirae Asset Global Investments Co. Ltd.	756,829	$17,748	12/31/2023
TMST	756,829	$17,748	12/31/2023
Invesco Ltd.	748,721	$17,558	12/31/2023
TMST	748,721	$17,558	12/31/2023
American Century Companies Inc.	740,747	$17,371	12/31/2023
TMST	740,747	$17,371	12/31/2023
Bridgeway Capital Management Inc.	740,698	$17,369	12/31/2023
TMST	740,698	$17,369	12/31/2023
Charles Schwab Investment Management Inc.	674,211	$15,810	12/31/2023
TMST	674,211	$15,810	12/31/2023
Morgan Stanley	647,591	$15,186	12/31/2023
TMST	647,591	$15,186	12/31/2023
Northern Trust Corp	418,312	$9,809	12/31/2023
TMST	418,312	$9,809	12/31/2023
Bank of New York Mellon Corp	346,890	$8,135	12/31/2023
TMST	346,890	$8,135	12/31/2023
Two Sigma Advisers LP	234,700	$5,504	12/31/2023
TMST	234,700	$5,504	12/31/2023
JPMorgan Chase & Co.	230,780	$5,412	12/31/2023
TMST	230,780	$5,412	12/31/2023
Two Sigma Investments LP	218,830	$5,132	12/31/2023
TMST	218,830	$5,132	12/31/2023
Gamco Investors INC. ET AL	218,500	$5,124	12/31/2023
TMST	218,500	$5,124	12/31/2023
D. E. Shaw & Co. Inc.	208,878	$4,898	12/31/2023
TMST	208,878	$4,898	12/31/2023
Principal Financial Group Inc.	200,884	$4,711	12/31/2023
TMST	200,884	$4,711	12/31/2023
Empowered Funds LLC	195,898	$4,594	12/31/2023
TMST	195,898	$4,594	12/31/2023
Assenagon Asset Management S.A.	177,683	$4,167	12/31/2023
TMST	177,683	$4,167	12/31/2023
Russell Investments Group Ltd.	167,423	$3,926	12/31/2023
TMST	167,423	$3,926	12/31/2023
Nuveen Asset Management LLC	155,731	$3,652	12/31/2023
TMST	155,731	$3,652	12/31/2023
HighTower Advisors LLC	155,321	$3,645	12/31/2023
TMST	155,321	$3,645	12/31/2023
Goldman Sachs Group Inc.	130,802	$3,067	12/31/2023
TMST	130,802	$3,067	12/31/2023
Rhumbline Advisers	130,062	$3,050	12/31/2023
TMST	130,062	$3,050	12/31/2023
Bank of America Corp DE	122,485	$2,872	12/31/2023
TMST	122,485	$2,872	12/31/2023
Citadel Advisors LLC		$2,783	12/31/2023
TMST	111,378	$2,612	12/31/2023
Call	10,100	$237	12/31/2023
Put	2,800	$66	12/31/2023
Atom Investors LP	116,329	$2,728	12/31/2023
TMST	116,329	$2,728	12/31/2023
Prudential Financial Inc.	114,367	$2,682	12/31/2023
TMST	114,367	$2,682	12/31/2023
Ameriprise Financial Inc.	113,751	$2,667	12/31/2023
TMST	113,751	$2,667	12/31/2023
Brandywine Global Investment Management LLC	108,123	$2,535	12/31/2023
TMST	108,123	$2,535	12/31/2023
Victory Capital Management Inc.	107,626	$2,524	12/31/2023
TMST	107,626	$2,524	12/31/2023
Legal & General Group Plc	106,296	$2,493	12/31/2023
TMST	106,296	$2,493	12/31/2023
South Dakota Investment Council	93,579	$2,194	12/31/2023
TMST	93,579	$2,194	12/31/2023
New York State Teachers Retirement System	80,064	$1,878	12/31/2023
TMST	80,064	$1,878	12/31/2023
Bank of Montreal Can	77,603	$1,874	12/31/2023
TMST	77,603	$1,874	12/31/2023
Public Sector Pension Investment Board	79,703	$1,869	12/31/2023
TMST	79,703	$1,869	12/31/2023
HRT Financial LP	78,032	$1,829	12/31/2023
TMST	78,032	$1,829	12/31/2023
Swiss National Bank	77,100	$1,808	12/31/2023
TMST	77,100	$1,808	12/31/2023
Thrivent Financial for Lutherans	71,309	$1,673	12/31/2023
TMST	71,309	$1,673	12/31/2023
Barclays PLC	69,648	$1,633	12/31/2023
TMST	69,648	$1,633	12/31/2023
Scalar Gauge Management LLC	65,000	$1,524	12/31/2023
TMST	65,000	$1,524	12/31/2023
Gabelli Funds LLC	64,000	$1,501	12/31/2023
TMST	64,000	$1,501	12/31/2023
CoreCommodity Management LLC	63,695	$1,494	12/31/2023
TMST	63,695	$1,494	12/31/2023