Seth Lederman

Insider · Chief Executive Officer · TNXP

Seth Lederman files insider transactions with the SEC as a chief executive officer of Tonix Pharmaceuticals Holding (TNXP). We hold 4 disclosed purchases and sales filed since 19 February 2013, 1 of them in the last 90 days.

Files forTNXP
Disclosed buys and sells4 in all, 1 in the last 90 days
Last disclosure31 August 2026

Positions held

1 post we hold — a term names its own dates; a run of filings only says when they filed

Filed 12 February 2013 — 27 August 2026Chief Executive Officer · Tonix Pharmaceuticals Holding (TNXP)97 Form 4 lines · source: SEC Form 4

Everything they disclosed

97 entries, newest first — one per disclosure report, one per Form 4 line

▲ bought on the open market 2,000 shares of Tonix Pharmaceuticals HoldingSEC Form 431 August 2026Common Stock, $0.001 par value · traded 27 August 2026 · filed 31 August 2026
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 49 June 2026Common Stock, $0.001 par value · traded 9 June 2026 · filed 9 June 2026
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 41 April 2026Common Stock, $0.001 par value · traded 31 March 2026 · filed 1 April 2026
▲ bought on the open market 15,000 shares of Tonix Pharmaceuticals HoldingSEC Form 418 March 2026Common Stock, $0.001 par value · traded 18 March 2026 · filed 18 March 2026
▲ bought on the open market 15,000 shares of Tonix Pharmaceuticals HoldingSEC Form 418 March 2026Common Stock, $0.001 par value · traded 18 March 2026 · filed 18 March 2026
was granted 134,504 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 426 February 2026Stock Option · traded 24 February 2026 · filed 26 February 2026
was granted 134,503 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 426 February 2026Stock Option · traded 24 February 2026 · filed 26 February 2026
was granted 134,504 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 426 February 2026Stock Option · traded 24 February 2026 · filed 26 February 2026
was granted 134,503 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 426 February 2026Stock Option · traded 24 February 2026 · filed 26 February 2026
▲ bought on the open market 4,000 shares of Tonix Pharmaceuticals HoldingSEC Form 415 May 2025Common Stock, $0.001 par value · traded 15 May 2025 · filed 15 May 2025
was granted 123,958 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2025Stock Option · traded 25 February 2025 · filed 27 February 2025
was granted 123,958 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2025Stock Option · traded 25 February 2025 · filed 27 February 2025
acquired or disposed of, other 5 shares of Tonix Pharmaceuticals HoldingSEC Form 427 February 2025Common Stock, $0.001 par value · traded 5 February 2025 · filed 27 February 2025
acquired or disposed of, other 0 shares of Tonix Pharmaceuticals HoldingSEC Form 427 February 2025Common Stock, $0.001 par value · traded 5 February 2025 · filed 27 February 2025
acquired or disposed of, other 1 share of Tonix Pharmaceuticals HoldingSEC Form 427 February 2025Common Stock, $0.001 par value · traded 5 February 2025 · filed 27 February 2025
was granted 235,320 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 46 March 2024Stock Option · traded 27 February 2024 · filed 6 March 2024
was granted 1,903,680 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 46 March 2024Stock Option · traded 27 February 2024 · filed 6 March 2024
was granted 1,309,911 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 46 March 2024Stock Option · traded 27 February 2024 · filed 6 March 2024
was granted 235,320 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 429 February 2024Stock Option · traded 27 February 2024 · filed 29 February 2024
was granted 1,903,680 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 429 February 2024Stock Option · traded 27 February 2024 · filed 29 February 2024
was granted 1,309,911 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 429 February 2024Stock Option · traded 27 February 2024 · filed 29 February 2024
was granted 700,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 424 February 2023Stock Option · traded 23 February 2023 · filed 24 February 2023
was granted 700,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 424 February 2023Stock Option · traded 23 February 2023 · filed 24 February 2023
▲ bought on the open market 20,000 shares of Tonix Pharmaceuticals HoldingSEC Form 41 July 2022Common Stock, $0.001 par value · traded 29 June 2022 · filed 1 July 2022
▲ bought on the open market 100,000 shares of Tonix Pharmaceuticals HoldingSEC Form 428 March 2022Common Stock, $0.001 par value · traded 25 March 2022 · filed 28 March 2022
was granted 5,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 417 February 2022Stock Option · traded 15 February 2022 · filed 17 February 2022
was granted 5,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 417 February 2022Stock Option · traded 15 February 2022 · filed 17 February 2022
was granted 5,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 417 February 2022Stock Option · traded 15 February 2022 · filed 17 February 2022
was granted 5,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 417 February 2022Stock Option · traded 15 February 2022 · filed 17 February 2022
▲ bought on the open market 12,000 shares of Tonix Pharmaceuticals HoldingSEC Form 428 September 2021Common Stock, $0.001 par value · traded 28 September 2021 · filed 28 September 2021
▲ bought on the open market 16,733 shares of Tonix Pharmaceuticals HoldingSEC Form 425 March 2021Common Stock, $0.001 par value · traded 24 March 2021 · filed 25 March 2021
was granted 3,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 425 February 2021Stock Option · traded 23 February 2021 · filed 25 February 2021
was granted 3,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 425 February 2021Stock Option · traded 23 February 2021 · filed 25 February 2021
▲ bought on the open market 35,000 shares of Tonix Pharmaceuticals HoldingSEC Form 44 January 2021Common Stock, $0.001 par value · traded 30 December 2020 · filed 4 January 2021
▲ bought on the open market 60,000 shares of Tonix Pharmaceuticals HoldingSEC Form 417 August 2020Common Stock, $0.001 par value · traded 13 August 2020 · filed 17 August 2020
was granted 2,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 46 May 2020Stock Option · traded 4 May 2020 · filed 6 May 2020
was granted 2,000,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 46 May 2020Stock Option · traded 4 May 2020 · filed 6 May 2020
was granted 120,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2020Stock Option · traded 25 February 2020 · filed 27 February 2020
was granted 120,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2020Stock Option · traded 25 February 2020 · filed 27 February 2020
▲ bought on the open market 20,000 shares of Tonix Pharmaceuticals HoldingSEC Form 44 December 2019Common Stock, $0.001 par value · traded 3 December 2019 · filed 4 December 2019
was granted 129,758 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 48 May 2019Stock Option · traded 6 May 2019 · filed 8 May 2019
was granted 129,757 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 48 May 2019Stock Option · traded 6 May 2019 · filed 8 May 2019
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 41 April 2019Common Stock, $0.001 par value · traded 29 March 2019 · filed 1 April 2019
▲ bought on the open market 25,000 shares of Tonix Pharmaceuticals HoldingSEC Form 428 March 2019Common Stock, $0.001 par value · traded 26 March 2019 · filed 28 March 2019
was granted 23,265 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2019Stock Option · traded 26 February 2019 · filed 27 February 2019
was granted 23,265 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2019Stock Option · traded 26 February 2019 · filed 27 February 2019
▲ bought on the open market 500 shares of Tonix Pharmaceuticals HoldingSEC Form 42 July 2018Common Stock, $0.001 par value · traded 29 June 2018 · filed 2 July 2018
▲ bought on the open market 500 shares of Tonix Pharmaceuticals HoldingSEC Form 429 June 2018Common Stock, $0.001 par value · traded 28 June 2018 · filed 29 June 2018
▲ bought on the open market 500 shares of Tonix Pharmaceuticals HoldingSEC Form 428 June 2018Common Stock, $0.001 par value · traded 27 June 2018 · filed 28 June 2018
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 414 June 2018Common Stock, $0.001 par value · traded 12 June 2018 · filed 14 June 2018
▲ bought on the open market 2,000 shares of Tonix Pharmaceuticals HoldingSEC Form 414 June 2018Common Stock, $0.001 par value · traded 12 June 2018 · filed 14 June 2018
▲ bought on the open market 4,000 shares of Tonix Pharmaceuticals HoldingSEC Form 430 May 2018Common Stock, $0.001 par value · traded 25 May 2018 · filed 30 May 2018
was granted 156,601 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 415 February 2018Stock Option · traded 13 February 2018 · filed 15 February 2018
was granted 156,601 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 415 February 2018Stock Option · traded 13 February 2018 · filed 15 February 2018
▲ bought on the open market 5,300 shares of Tonix Pharmaceuticals HoldingSEC Form 427 December 2017Common Stock, $0.001 par value · traded 26 December 2017 · filed 27 December 2017
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 418 August 2017Common Stock, $0.001 par value · traded 16 August 2017 · filed 18 August 2017
▲ bought on the open market 15,000 shares of Tonix Pharmaceuticals HoldingSEC Form 418 August 2017Common Stock, $0.001 par value · traded 17 August 2017 · filed 18 August 2017
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 430 June 2017Common Stock, $0.001 par value · traded 30 June 2017 · filed 30 June 2017
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 426 June 2017Common Stock, $0.001 par value · traded 26 June 2017 · filed 26 June 2017
▲ bought on the open market 20,000 shares of Tonix Pharmaceuticals HoldingSEC Form 420 June 2017Common Stock, $0.001 par value · traded 20 June 2017 · filed 20 June 2017
was granted 160,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 41 March 2017Stock Option · traded 1 March 2017 · filed 1 March 2017
was granted 160,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 41 March 2017Stock Option · traded 1 March 2017 · filed 1 March 2017
acquired or disposed of, other 3,296 shares of Tonix Pharmaceuticals HoldingSEC Form 413 February 2017Common Stock · traded 30 June 2016 · filed 13 February 2017
▲ bought on the open market 98,000 shares of Tonix Pharmaceuticals HoldingSEC Form 422 November 2016Common Stock, $0.001 par value · traded 21 November 2016 · filed 22 November 2016
▲ bought on the open market 10,000 shares of Tonix Pharmaceuticals HoldingSEC Form 431 October 2016Common Stock, $0.001 par value · traded 31 October 2016 · filed 31 October 2016
▲ bought on the open market 10,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 431 October 2016Common Stock Purchase Warrant · traded 31 October 2016 · filed 31 October 2016
▲ bought on the open market 20,000 shares of Tonix Pharmaceuticals HoldingSEC Form 422 June 2016Common Stock, $0.001 par value · traded 22 June 2016 · filed 22 June 2016
▲ bought on the open market 25,000 shares of Tonix Pharmaceuticals HoldingSEC Form 421 June 2016Common Stock, $0.001 par value · traded 21 June 2016 · filed 21 June 2016
▲ bought on the open market 8,000 shares of Tonix Pharmaceuticals HoldingSEC Form 423 March 2016Common Stock, $0.001 par value · traded 23 March 2016 · filed 23 March 2016
was granted 110,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 410 February 2016Stock Option · traded 9 February 2016 · filed 10 February 2016
was granted 110,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 410 February 2016Stock Option · traded 9 February 2016 · filed 10 February 2016
acquired or disposed of, other 1,741 shares of Tonix Pharmaceuticals HoldingSEC Form 410 February 2016Common Stock · traded 31 December 2015 · filed 10 February 2016
▲ bought on the open market 6,000 shares of Tonix Pharmaceuticals HoldingSEC Form 425 September 2015Common Stock, $0.001 par value · traded 25 September 2015 · filed 25 September 2015
▲ bought on the open market 6,000 shares of Tonix Pharmaceuticals HoldingSEC Form 417 July 2015Common Stock, $0.001 par value · traded 17 July 2015 · filed 17 July 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 417 March 2015Common Stock, $0.001 par value · traded 16 March 2015 · filed 17 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 417 March 2015Common Stock, $0.001 par value · traded 17 March 2015 · filed 17 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 413 March 2015Common Stock, $0.001 par value · traded 12 March 2015 · filed 13 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 413 March 2015Common Stock, $0.001 par value · traded 13 March 2015 · filed 13 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 411 March 2015Common Stock, $0.001 par value · traded 10 March 2015 · filed 11 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 411 March 2015Common Stock, $0.001 par value · traded 11 March 2015 · filed 11 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 49 March 2015Common Stock, $0.001 par value · traded 6 March 2015 · filed 9 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 49 March 2015Common Stock, $0.001 par value · traded 9 March 2015 · filed 9 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 45 March 2015Common Stock, $0.001 par value · traded 4 March 2015 · filed 5 March 2015
▲ bought on the open market 1,000 shares of Tonix Pharmaceuticals HoldingSEC Form 45 March 2015Common Stock, $0.001 par value · traded 5 March 2015 · filed 5 March 2015
was granted 189,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2015Stock Option · traded 25 February 2015 · filed 27 February 2015
was granted 7,143 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 427 February 2015Stock Option · traded 25 February 2015 · filed 27 February 2015
▲ bought on the open market 5,000 shares of Tonix Pharmaceuticals HoldingSEC Form 49 February 2015Common Stock, $0.001 par value · traded 9 February 2015 · filed 9 February 2015
was granted 100,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 43 November 2014Stock Option · traded 29 October 2014 · filed 3 November 2014
was granted 100,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 420 June 2014Stock Option · traded 17 June 2014 · filed 20 June 2014
acquired or disposed of, other 25,000 shares of Tonix Pharmaceuticals HoldingSEC Form 421 March 2014Common Stock, $0.001 par value · traded 18 March 2014 · filed 21 March 2014
acquired or disposed of, other 25,000 shares of Tonix Pharmaceuticals HoldingSEC Form 421 March 2014Common Stock, $0.001 par value · traded 18 March 2014 · filed 21 March 2014
was granted 71,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 426 February 2014Stock Option · traded 11 February 2014 · filed 26 February 2014
▲ bought on the open market 11,765 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 415 August 2013Series A common stock purchase warrant · traded 14 August 2013 · filed 15 August 2013
▲ bought on the open market 11,765 shares of Tonix Pharmaceuticals HoldingSEC Form 415 August 2013Common Stock, $0.001 par value · traded 14 August 2013 · filed 15 August 2013
▲ bought on the open market 600 shares of Tonix Pharmaceuticals HoldingSEC Form 420 May 2013Common Stock, $0.001 par value · traded 20 May 2013 · filed 20 May 2013
▲ bought on the open market 400 shares of Tonix Pharmaceuticals HoldingSEC Form 420 May 2013Common Stock, $0.001 par value · traded 20 May 2013 · filed 20 May 2013
was granted 1,350,000 shares of Tonix Pharmaceuticals Holding (a derivative holding)SEC Form 419 February 2013Stock Option · traded 12 February 2013 · filed 19 February 2013

Positions come from the unitedstates/congress-legislators roster, the Office of Government Ethics and the SEC’s Form 4 index. Every disclosed line names its own source and links the document the government published; we print what the filing says and never a price we did not read from it. Headlines and links come from the GDELT Global Knowledge Graph — the story stays with the publisher. The portrait, where we have one, is the public-domain Congressional Bioguide photograph.