STLD

SEC source: 0001062993-24-000948 · form4.xml · nonDerivative · entry 1

Hamann Jennifer L · CIK 0001798280 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 778

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000947 · form4.xml · nonDerivative · entry 1

Shaheen Gabriel · CIK 0001411393 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,495

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000946 · form4.xml · nonDerivative · entry 1

Seaman Bradley S · CIK 0001597069 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,631

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000945 · form4.xml · nonDerivative · entry 1

MARCUCCILLI JAMES C · CIK 0001321944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,166

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000944 · form4.xml · nonDerivative · entry 1

DOLAN TRACI M · CIK 0001251631 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,008

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000943 · form4.xml · nonDerivative · entry 1

Cornew Kenneth W. · CIK 0001482379 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 33,513

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-24-000942 · form4.xml · nonDerivative · entry 1

BARGABOS SHEREE L · CIK 0001228300 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,127

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-022840 · form4.xml · nonDerivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 149,407

SEC source: 0001062993-23-023010 · form4.xml · nonDerivative · entry 2

MARCUCCILLI JAMES C · CIK 0001321944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 59,989

SEC source: 0001062993-23-023010 · form4.xml · nonDerivative · entry 1

MARCUCCILLI JAMES C · CIK 0001321944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 72,716

SEC source: 0001062993-23-021902 · form4.xml · derivative · entry 6

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,284

Underlying: Common Stock · 5,629 shares

Expires 2031-02-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: Exempt exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d).

SEC source: 0001062993-23-021902 · form4.xml · derivative · entry 5

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,269 shares

Expires 2030-02-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: Exempt exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d).

SEC source: 0001062993-23-021902 · form4.xml · nonDerivative · entry 4

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,051

F2 · kind: Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee compromised soley of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e.

SEC source: 0001062993-23-021902 · form4.xml · nonDerivative · entry 3

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 187,680

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee compromised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b).

SEC source: 0001062993-23-021902 · form4.xml · nonDerivative · entry 2

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,051

F2 · kind: Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee compromised soley of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e.

SEC source: 0001062993-23-021902 · form4.xml · nonDerivative · entry 1

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 185,320

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee compromised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b).

SEC source: 0001062993-23-021572 · form4.xml · derivative · entry 6

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,284

Underlying: Common Stock · 5,629 shares

Expires 2031-02-24

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: Exempt exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d).

SEC source: 0001062993-23-021572 · form4.xml · derivative · entry 5

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 3,269 shares

Expires 2030-02-20

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · kind: Exempt exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d).

SEC source: 0001062993-23-021572 · form4.xml · nonDerivative · entry 4

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,520

F2 · kind: Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee compromised soley of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e.

SEC source: 0001062993-23-021572 · form4.xml · nonDerivative · entry 3

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,149

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee compromised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b).

SEC source: 0001062993-23-021572 · form4.xml · nonDerivative · entry 2

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,520

F2 · kind: Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee compromised soley of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e.

F2 · shares: Deemed disposition of underlying shares by Reporting Person to issuer upon cash-settled exercise of stock appreciation rights, approved in advance by a Committee compromised soley of two or more Non-Employee directors, exempt from Section 16(b) pursuant to Rule 16b-3(d) and Rule 16b-3e.

SEC source: 0001062993-23-021572 · form4.xml · nonDerivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 164,789

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee compromised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b).

F1 · shares: Deemed acquisition of underlying shares from issuer by Reporting Person, upon exercise of stock appreciation rights granted in a transaction exempt from Section 16(b) pursuant to Rule 16b-3(d), approved in advance by a Committee compromised solely of two or more Non-Employee directors; also exempt pursuant to Rule 16b-6(b).

SEC source: 0001062993-23-021273 · form4.xml · nonDerivative · entry 4

Graham Christopher A · CIK 0001607477 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,945

F4 · shares: Represents disposition to issuer to cover taxes payable upon issuance of restricted shares required to be issued to reporting person by reason of his age, in advance of the otherwise applicable second year of the two-year vesting requirement of previously issued restricted stock units; subject however, to an additional one-year holding period.

SEC source: 0001062993-23-021273 · form4.xml · nonDerivative · entry 3

Graham Christopher A · CIK 0001607477 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,212

F3 · shares: Represents dispoition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021273 · form4.xml · nonDerivative · entry 2

Graham Christopher A · CIK 0001607477 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,615

F2 · shares: Represents disposition to issuer to cover taxes payable upon issuance of shares reported in footnote (1), exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021273 · form4.xml · nonDerivative · entry 1

Graham Christopher A · CIK 0001607477 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,820

F1 · shares: Represents grant of restricted stock, in lieu of restricted stock units because of reporting person's age, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3), subject, however, to a two year holding period.

SEC source: 0001062993-23-021272 · form4.xml · nonDerivative · entry 2

Wagler Theresa E · CIK 0001301637 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 432,694

F2 · shares: Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021272 · form4.xml · nonDerivative · entry 1

Wagler Theresa E · CIK 0001301637 · Executive Vice President & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 435,258

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted stock units are subject to a two year vesting requirement, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.

SEC source: 0001062993-23-021269 · form4.xml · nonDerivative · entry 2

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 161,520

F2 · shares: Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021269 · form4.xml · nonDerivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,923

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted stock units are subject to a two year vesting requirement, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.

SEC source: 0001062993-23-021270 · form4.xml · nonDerivative · entry 2

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 182,051

F2 · shares: Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021270 · form4.xml · nonDerivative · entry 1

SCHNEIDER BARRY · CIK 0001397059 · President and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 183,454

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted stock units are subject to a two year vesting requirement, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.

SEC source: 0001062993-23-021267 · form4.xml · nonDerivative · entry 2

Alvarez Miguel · CIK 0001767177 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 102,528

F2 · shares: Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021267 · form4.xml · nonDerivative · entry 1

Alvarez Miguel · CIK 0001767177 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,931

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted stock units are subject to a two year vesting requirement, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.

SEC source: 0001062993-23-021268 · form4.xml · nonDerivative · entry 2

Poinsatte Richard A · CIK 0001438345 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,246

F2 · shares: Represents disposition to issuer to cover taxes payable upon vesting of previously issued and reported restricted stock units, exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021268 · form4.xml · nonDerivative · entry 1

Poinsatte Richard A · CIK 0001438345 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,610

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Issuer's equity incentive plan, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). The restricted stock units are subject to a two year vesting requirement, following which settlement is to be made solely in the same number of shares of the Issuer's common stock shown in Column 4.

SEC source: 0001062993-23-021266 · form4.xml · nonDerivative · entry 2

MILLETT MARK D · CIK 0001195949 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,902,692

F2 · shares: Represents disposition to issuer to cover taxes payable upon issuance of shares reported in footnote (1), exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021266 · form4.xml · nonDerivative · entry 1

MILLETT MARK D · CIK 0001195949 · Director · Chairman and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,903,039

F1 · shares: Represents grant of restricted stock, in lieu of restricted stock units because of reporting person's age, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3), subject, however, to a two year holding period.

SEC source: 0001062993-23-021265 · form4.xml · nonDerivative · entry 2

Anderson James Stanley · CIK 0001921061 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,668

F2 · shares: Represents disposition to issuer to cover taxes payable upon issuance of shares reported in footnote (1), exempt pursuant to Rule 16b-3.

SEC source: 0001062993-23-021265 · form4.xml · nonDerivative · entry 1

Anderson James Stanley · CIK 0001921061 · Senior Vice President

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 81,873

F1 · shares: Represents grant of restricted stock, in lieu of restricted stock units because of reporting person's age, for no consideration, and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3), subject, however, to a two year holding period.

SEC source: 0001062993-23-020327 · form4.xml · nonDerivative · entry 1

Seaman Bradley S · CIK 0001597069 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,462

F1 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $109.64 to $109.83, inclusive. The reporting person undertakes to provide to Steel Dynamics, Inc., any security holder of Steel Dynamics, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

SEC source: 0001062993-23-020036 · form4.xml · nonDerivative · entry 1

Hamann Jennifer L · CIK 0001798280 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 775

F1 · shares: Issued as deferred stock units (DSUs) in connection with reporting person's retainer, as a director, under the Company's 2023 Equity Incentive Plan and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). These DSUs are reportable, however, as directly owned shares of common stock, rather than as derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in common stock. (See Lincoln National Corp. (March 20, 1992) (Q.3)

SEC source: 0001062993-23-020034 · form4.xml · nonDerivative · entry 1

Sierra Luis Manuel · CIK 0001905141 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,340

F1 · shares: Issued as deferred stock units (DSUs) in connection with reporting person's retainer as a director under the Company's 2023 Equity Incentive Plan and exempt from Section 16(b) by virtue of Rule 16b-3(d)(1) and (3). These DSUs are reportable, however, as directly owned shares of common stock, rather than as a derivative security in Table II, becuase any and all underlying DSUs are pyable, at such time as they are to be settled, solely in common stock. See Lincoln National Corp. (March 20,1992) (Q.3).

SEC source: 0001062993-23-019425 · form4.xml · nonDerivative · entry 1

Sierra Luis Manuel · CIK 0001905141 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 6,023

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019424 · form4.xml · nonDerivative · entry 1

TEETS RICHARD P JR · CIK 0001195950 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 5,049,289

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019423 · form4.xml · nonDerivative · entry 1

Sonnenberg Steven Alan · CIK 0001335987 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,439

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019421 · form4.xml · nonDerivative · entry 1

Seaman Bradley S · CIK 0001597069 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,179

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019422 · form4.xml · nonDerivative · entry 1

Shaheen Gabriel · CIK 0001411393 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,290

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019419 · form4.xml · nonDerivative · entry 1

DOLAN TRACI M · CIK 0001251631 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,831

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.

SEC source: 0001062993-23-019420 · form4.xml · nonDerivative · entry 1

MARCUCCILLI JAMES C · CIK 0001321944 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,443

F1 · shares: Represents the number of shares of common stock underlying additional deferred stock units (DSUs) issued to the reporting person as a dividend equivalent, in connection with this person's retainer as a director under the Company's 2023 Equity Incentive Plan (the "Plan"). This transaction is exempt from both the reporting requirements of Section 16(a), including Rule 16a-11, and the provisions of Section 16(b), by virtue of this dividend reinvestment feature of the Plan and the Company's existing Dividend Reinvestment Plan, as well as being exempt from Section 16(b) independently by virtue of Rule 16b-3(d)(1) and (3).

F2 · shares: Reportable as directly owned shares of common stock, rather than as a derivative security in Table II, because any and all underlying DSUs are payable, at such time as they are to be settled, solely in shares of common stock. (See Lincoln National Corp. (March 20, 1992) Q.3).

F3 · balance_after: Includes shares resulting from reinvestment of dividends on any underlying DSUs included in this total.