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BJ

Benjamin Jackson

Insider · General Counsel · SERA

Benjamin Jackson files insider transactions with the SEC as a general counsel of Sera Prognostics. We hold 4 disclosed purchases and sales filed since 26 September 2019, 2 of them in the last 90 days.

  • Files for 2 companiesSERA, MYGN
  • Disclosed buys and sells4 in all, 2 in the last 90 days
  • Last disclosure11 September 2026

Positions held

2 posts we hold — a term names its own dates; a run of filings only says when they filed
  • Filed 23 March 2022 — 10 September 2026General Counsel · Sera Prognostics 37 Form 4 lines · source: SEC Form 4
  • Filed 25 September 2019 — 24 March 2021E.V.P., General Counsel · Myriad Genetics 12 Form 4 lines · source: SEC Form 4

Every transaction

49 transactions from SEC Form 4 — one row each, sort any column, open a row for the filing
49 of 49 shown
10 Sep 202611 Sep 2026SEC Form 41 dsold on the open marketSera Prognostics2,190 sharesdown −1.0%up +0.0%
11 Jun 202615 Jun 2026SEC Form 44 dsold on the open marketSera Prognostics2,179 sharesup +5.2%up +10.3%
29 May 20261 Jun 2026SEC Form 43 dwas grantednot a tradeSera Prognostics5,000 sharesdown −6.0%down −7.3%
12 Mar 202613 Mar 2026SEC Form 41 dwas grantednot a tradeSera Prognostics44,215 sharesup +2.0%down −4.7%
12 Mar 202613 Mar 2026SEC Form 41 dwas grantednot a tradeSera Prognosticsderivative68,550 sharesup +2.0%down −4.7%
12 Mar 202613 Mar 2026SEC Form 41 dwas grantednot a tradeSera Prognosticsderivative68,550 sharesup +2.0%down −4.7%
12 Mar 202613 Mar 2026SEC Form 41 dwas grantednot a tradeSera Prognostics44,215 sharesup +2.0%down −4.7%
11 Mar 202612 Mar 2026SEC Form 41 dsold on the open marketSera Prognostics1,027 sharesup +5.2%up +2.0%
11 Mar 202612 Mar 2026SEC Form 41 dsold on the open marketSera Prognostics1,027 sharesup +5.2%up +2.0%
9 Mar 202610 Mar 2026SEC Form 41 dsold on the open marketSera Prognostics3,119 sharesup +5.2%up +10.9%
9 Mar 202610 Mar 2026SEC Form 41 dsold on the open marketSera Prognostics3,119 sharesup +5.2%up +10.9%
10 Dec 202511 Dec 2025SEC Form 41 dsold on the open marketSera Prognostics892 sharesdown −40.3%down −40.3%
10 Nov 202512 Nov 2025SEC Form 42 dsold on the open marketSera Prognostics7,059 sharesdown −20.4%down −34.9%
11 Sep 202512 Sep 2025SEC Form 41 dsold on the open marketSera Prognostics934 sharesdown −33.9%down −34.5%
8 Aug 202511 Aug 2025SEC Form 43 dsold on the open marketSera Prognostics6,447 sharesdown −18.1%down −13.2%
10 Jun 202512 Jun 2025SEC Form 42 dsold on the open marketSera Prognostics965 sharesup +36.2%up +14.0%
30 May 202512 Jun 2025SEC Form 413 dwas grantednot a tradeSera Prognostics3,703 sharesup +30.1%up +14.0%
8 May 20259 May 2025SEC Form 41 dsold on the open marketSera Prognostics7,084 sharesdown −4.2%down −8.6%
6 Mar 20257 Mar 2025SEC Form 41 dsold on the open marketSera Prognostics2,285 sharesdown −51.1%down −53.0%
5 Mar 20257 Mar 2025SEC Form 42 dwas grantednot a tradeSera Prognosticsderivative49,420 sharesdown −51.7%down −53.0%
5 Mar 20257 Mar 2025SEC Form 42 dwas grantednot a tradeSera Prognostics34,590 sharesdown −51.7%down −53.0%
13 Feb 202514 Feb 2025SEC Form 41 dsold on the open marketSera Prognostics5,915 sharesdown −52.5%down −49.6%
14 Jan 202514 Jan 2025SEC Form 40 dsold on the open marketSera Prognostics8,407 sharesdown −68.1%down −68.1%
13 Jan 202514 Jan 2025SEC Form 41 dsold on the open marketSera Prognostics7,912 sharesdown −67.9%down −68.1%
10 Jan 202514 Jan 2025SEC Form 44 dsold on the open marketSera Prognostics12,041 sharesdown −70.7%down −68.1%
10 Jan 202514 Jan 2025SEC Form 44 dsold on the open marketSera Prognostics1,231 sharesdown −70.7%down −68.1%
11 Nov 202412 Nov 2024SEC Form 41 dsold on the open marketSera Prognostics4,727 sharesdown −72.7%down −72.0%
7 Aug 20248 Aug 2024SEC Form 41 dsold on the open marketSera Prognostics5,022 sharesdown −72.6%down −72.6%
8 May 202410 May 2024SEC Form 42 dsold on the open marketSera Prognostics4,902 sharesdown −78.2%down −78.1%
6 Mar 20247 Mar 2024SEC Form 41 dsold on the open marketSera Prognostics1,856 sharesdown −77.6%down −77.5%
6 Feb 20247 Feb 2024SEC Form 41 dsold on the open marketSera Prognostics5,665 sharesdown −75.6%down −74.4%
7 Dec 20237 Dec 2023SEC Form 40 dsold on the open marketSera Prognostics10,000 sharesdown −59.8%down −59.8%
6 Nov 20238 Nov 2023SEC Form 42 dwas grantednot a tradeSera Prognostics125,000 sharesup +9.1%up +3.0%
6 Mar 20237 Mar 2023SEC Form 41 dwas grantednot a tradeSera Prognosticsderivative39,100 sharesdown −46.6%down −45.4%
6 Mar 20237 Mar 2023SEC Form 41 dwas grantednot a tradeSera Prognostics24,700 sharesdown −46.6%down −45.4%
14 Jun 202216 Jun 2022SEC Form 42 dbought on the open marketSera Prognostics8,000 sharesup +61.1%up +66.4%
23 Mar 202225 Mar 2022SEC Form 42 dwas grantednot a tradeSera Prognosticsderivative60,345 sharesdown −45.9%down −43.3%
24 Mar 202126 Mar 2021SEC Form 42 dwas grantednot a tradeMyriad Genetics18,879 sharesdown −87.8%down −88.6%
8 Oct 202013 Oct 2020SEC Form 45 dwas grantednot a tradeMyriad Genetics29,784 sharesdown −74.5%down −74.0%
30 Sep 20201 Oct 2020SEC Form 41 dreturned to the issuernot a tradeMyriad Genetics416 sharesdown −73.8%down −74.0%
26 Sep 202028 Sep 2020SEC Form 42 dreturned to the issuernot a tradeMyriad Genetics2,935 sharesdown −72.5%down −73.0%
25 Sep 202028 Sep 2020SEC Form 43 dreturned to the issuernot a tradeMyriad Genetics367 sharesdown −72.5%down −73.0%
25 Sep 202028 Sep 2020SEC Form 43 dreturned to the issuernot a tradeMyriad Genetics453 sharesdown −72.5%down −73.0%
12 Aug 202017 Aug 2020SEC Form 45 dwas grantednot a tradeMyriad Genetics6,541 sharesdown −73.8%down −76.8%
30 Sep 20191 Oct 2019SEC Form 41 dreturned to the issuernot a tradeMyriad Genetics416 sharesdown −88.1%down −87.9%
30 Sep 20191 Oct 2019SEC Form 41 dreturned to the issuernot a tradeMyriad Genetics417 sharesdown −88.1%down −87.9%
25 Sep 201926 Sep 2019SEC Form 41 dreturned to the issuernot a tradeMyriad Genetics367 sharesdown −88.6%down −88.1%
25 Sep 201926 Sep 2019SEC Form 41 dreturned to the issuernot a tradeMyriad Genetics453 sharesdown −88.6%down −88.1%
25 Sep 201926 Sep 2019SEC Form 41 dwas grantednot a tradeMyriad Genetics40,000 sharesdown −88.6%down −88.1%

Both percentages are the stock’s move, not Benjamin Jackson’s return: a disclosure gives a band, never an amount, so nobody can say how much was bought or what it made. They run to the last close we hold — 11 Sep 2026, except where a name has since delisted, when the row names its own last session. We publish no close, no volume and no dollar figure behind them. 49 of the 49 rows shown carry a percentage; the rest are dashes with the reason on the row.

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.

Some filings reach us as photographs of paper rather than as a form we can read as text. Those are shown here only once they have been read and checked, so this page can hold fewer lines than the filings behind it contain. The link on every row opens the original document, which is always the full record.