STLD

SEC source: 0001022671-18-000025 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,221,656

F2 · shares: Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan, and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e).

SEC source: 0001022671-18-000025 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,263,135

F1 · shares: Acquisition from Issuer: Shares awarded under Long-Term Incentive Program adopted by Compensation Committee composed of three or more independent non-employee directors pursuant to the Company's 2015 Equity Incentive Plan approved by Compensation Committee and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3(d).

SEC source: 0001022671-18-000024 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332,851

F2 · shares: Disposition to Issuer: Shares withheld by Issuer in payment of reporting person's withholding tax liability in connection with such person's receipt or vesting of an equity security, and either approved in advance by Compensation Committee or mandated by the express terms of the Plan, and exempt from Section 16(b) of Exchange Act in accordance with Exchange Act Rule 16b-3(e).

SEC source: 0001022671-18-000024 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 352,832

F1 · shares: Acquisition from Issuer: Shares awarded under Long-Term Incentive Program adopted by Compensation Committee composed of three or more independent non-employee directors pursuant to the Company's 2015 Equity Incentive Plan approved by Compensation Committee and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3(d).

SEC source: 0001022671-18-000017 · edgar.xml · nonDerivative · entry 1

TEETS RICHARD P JR · CIK 0001195950 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,048,315

F1 · kind: Represents the number of shares of common stock underlying deferred stock units (DSUs) issued to the reporting person in connection with a portion of this person's retainer as a director under the Steel Dynamics, Inc. 2015 Equity Incentive Plan. This transaction is exempt from the provisions of Section 16(b), by virtue of Rule 16b-3(d)(1) and (3).

F2 · kind: 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: 0001022671-18-000023 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,000

Underlying: Common Stock · 30,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (10,000) of the SARs are exercisable on or after 2/15/19, an additional 834 of the SARs become exercisable each month for the next 23 months, and the balance of 818 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000022 · edgar.xml · derivative · entry 1

SCHNEIDER BARRY · CIK 0001397059 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (5,000) of the SARs are exercisable on or after 2/15/19, an additional 417 of the SARs become exercisable each month for the next 23 months, and the balance of 409 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000021 · edgar.xml · derivative · entry 1

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,000

Underlying: Common Stock · 25,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (8,333) of the SARs are exercisable on or after 2/15/19, an additional 695 of the SARs become exercisable each month for the next 23 months, and the balance of 682 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000020 · edgar.xml · derivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (5,000) of the SARs are exercisable on or after 2/15/19, an additional 417 of the SARs become exercisable each month for the next 23 months, and the balance of 409 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000019 · edgar.xml · derivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 185,000

Underlying: Common Stock · 185,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (61,667) of the SARs are exercisable on or after 2/15/19, an additional 5,139 of the SARs become exercisable each month for the next 23 months, and the balance of 5,136 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000018 · edgar.xml · derivative · entry 1

Graham Christopher A · CIK 0001607477 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,000

Underlying: Common Stock · 15,000 shares

Expires 2028-02-15

F1 · security: Stock Appreciation Rights (SAR) Award Agreement approved on February 15, 2018, by the Compensation Committee of the Company's Board of Directors, consisting of five non-employee independent directors, exempt pursuant to Rule 16b-3d.

F2 · derivative.exercise_price: Reflects the fair market value of underlying common stock on the grant date.

F3 · derivative.exercise_date: One-third (5,000) of the SARs are exercisable on or after 2/15/19, an additional 417 of the SARs become exercisable each month for the next 23 months, and the balance of 409 of the SARs become exercisable on 2/15/21. This SARs award expires on 2/15/2028.

SEC source: 0001022671-18-000015 · edgar.xml · nonDerivative · entry 2

SCHNEIDER BARRY · CIK 0001397059 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 52,890

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000015 · edgar.xml · nonDerivative · entry 1

SCHNEIDER BARRY · CIK 0001397059 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,093

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000016 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 297,555

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000016 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 302,047

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000014 · edgar.xml · nonDerivative · entry 2

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 144,000

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000014 · edgar.xml · nonDerivative · entry 1

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 146,444

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000013 · edgar.xml · nonDerivative · entry 2

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,330

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000013 · edgar.xml · nonDerivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 58,092

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000012 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,138,763

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000012 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,146,590

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000011 · edgar.xml · nonDerivative · entry 2

Graham Christopher A · CIK 0001607477 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 27,345

F2 · shares: Payment of withholding tax liability by issuer's withholding of securities incident to the reporting person's receipt or vesting of a security in accordance with Rule 16b-3.

SEC source: 0001022671-18-000011 · edgar.xml · nonDerivative · entry 1

Graham Christopher A · CIK 0001607477 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 28,814

F1 · shares: Shares awarded pursuant to 2013 Executive Incentive Compensation Plan approved by Board of Directors and Stockholders and exempt from Section 16(b) of Exchange Act pursuant to Rule 16b-3 thereunder. One-third of shares granted vest on date of grant, one-third vest one year from grant, and final one-third vest two years from grant.

SEC source: 0001022671-18-000010 · edgar.xml · nonDerivative · entry 1

TEETS RICHARD P JR · CIK 0001195950 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,047,837

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000009 · edgar.xml · nonDerivative · entry 1

Shaheen Gabriel · CIK 0001411393 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,847

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000008 · edgar.xml · nonDerivative · entry 1

Seaman Bradley S · CIK 0001597069 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,158

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000007 · edgar.xml · nonDerivative · entry 1

MARCUCCILLI JAMES C · CIK 0001321944 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 67,919

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000006 · edgar.xml · nonDerivative · entry 1

DOLAN TRACI M · CIK 0001251631 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,295

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000005 · edgar.xml · nonDerivative · entry 1

KOLB JURGEN DR · CIK 0001195958 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 51,760

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000004 · edgar.xml · nonDerivative · entry 1

Cornew Kenneth W. · CIK 0001482379 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,540

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000003 · edgar.xml · nonDerivative · entry 1

BYRNE FRANK D · CIK 0001216806 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,537

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-18-000002 · edgar.xml · nonDerivative · entry 1

BUSSE KEITH E · CIK 0001195948 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,003,575

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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: 0001022671-17-000097 · edgar.xml · nonDerivative · entry 1

BYRNE FRANK D · CIK 0001216806 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,427

SEC source: 0001022671-17-000096 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,123,792

SEC source: 0001022671-17-000095 · edgar.xml · nonDerivative · entry 4

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 135,382

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: 0001022671-17-000095 · edgar.xml · nonDerivative · entry 3

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 136,355

F3 · 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: 0001022671-17-000095 · edgar.xml · nonDerivative · entry 2

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 138,194

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: 0001022671-17-000095 · edgar.xml · nonDerivative · entry 1

RINN RUSSELL B · CIK 0001186730 · Executive Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 139,064

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: 0001022671-17-000094 · edgar.xml · nonDerivative · entry 2

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,506

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: 0001022671-17-000094 · edgar.xml · nonDerivative · entry 1

Pushis Glenn · CIK 0001301742 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,885

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Company'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 company's common stock shown in Column 4.

SEC source: 0001022671-17-000093 · edgar.xml · nonDerivative · entry 2

SCHNEIDER BARRY · CIK 0001397059 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,507

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: 0001022671-17-000093 · edgar.xml · nonDerivative · entry 1

SCHNEIDER BARRY · CIK 0001397059 · Senior Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,702

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Company'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 company's common stock shown in Column 4.

SEC source: 0001022671-17-000091 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 288,610

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: 0001022671-17-000091 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 290,449

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Company'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 company's common stock shown in Column 4.

SEC source: 0001022671-17-000092 · edgar.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,125,042

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: 0001022671-17-000092 · edgar.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,127,366

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Company'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 company's common stock shown in Column 4.

SEC source: 0001022671-17-000090 · edgar.xml · nonDerivative · entry 2

Graham Christopher A · CIK 0001607477 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,784

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: 0001022671-17-000090 · edgar.xml · nonDerivative · entry 1

Graham Christopher A · CIK 0001607477 · Vice President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,731

F1 · shares: Represents grant of restricted stock units equal to the same number of underlying shares, received as an award under the Company's equity incentive plan, for no consideration, and exempt from Section 16b 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 company's common stock shown in Column 4.

SEC source: 0001022671-17-000089 · edgar.xml · nonDerivative · entry 1

TEETS RICHARD P JR · CIK 0001195950 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,047,800

F1 · kind: Represents the number of shares of common stock underlying deferred stock units (DSUs) issued to the reporting person in connection with a portion of this person's retainer as a director under the Steel Dynamics, Inc. 2015 Equity Incentive Plan. This transaction is exempt from the provisions of Section 16(b), by virtue of Rule 16b-3(d)(1) and (3).

F2 · kind: 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: 0001022671-17-000088 · edgar.xml · nonDerivative · entry 1

TEETS RICHARD P JR · CIK 0001195950 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,047,192

F1 · shares: Represents the number of additional shares of common stock underlying deferred stock units (DSUs) issued to the reporting person as a dividend equivalent on existing DSUs, in connection with this person's retainer as a director under the Steel Dynamics, Inc. 2015 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.