greeksoup/ stock research
Stock research / United States / SERA / Insiders

Sera Prognostics, Inc. insider trading

In twelve months insiders at Sera Prognostics bought nothing and sold $659K on the open market; 9 of the 52 sales were under plans set months before.

Bought on the open marketNonein twelve months
Sold on the open market$659K52 sales
Sales set in advance9 of 52under Rule 10b5-1 plans
Pay taken in stockNone
New to this? How to read this page
  1. Insiders are the people who run the company: officers, directors and owners of 10% or more. They must report a trade on Form 4 within two business days.
  2. A purchase on the open market is the strongest sign: the insider spent their own money.
  3. A sale under a trading plan (Rule 10b5-1) says little: its dates were fixed months before. Sales outside a plan say more, but insiders sell for many reasons, such as taxes or a house.
  4. Grants, option exercises and shares held back for tax are left out.
  5. What is a Form 4? · Form 4 codes

What kind of trades

Insiders only sold: 52 sales worth $659K, and 9 of them were under plans set months before, which say little.

Purchasebought with their own money
Pay in stock, own choiceowed cash, chose shares
Sale outside a planthe insider picked the day
Sale under a plandates fixed months before
Says littlecompany plans, board pay, cash units
Bought
none
Sold
43 outside a plan9

Every Form 4 line of the last twelve months, counted by kind. The grades come from the filing itself: whether the insider paid cash, whether a plan set the date, whether pay was taken in stock by choice.

Insider trades on the share price

last twelve months

52 marks over twelve months, each in its grade: solid for the stronger signs, hollow or grey for the ones that say little.

PurchasePay in stock, own choiceSale outside a planSale under a planSays little

The blue line is the daily close over twelve months. Each mark is one insider's trades on one day, on that day's price, sized by dollar value. Solid marks are the stronger signs; hollow and grey marks say little. Hover or tap a mark for who, how much and why.

Trades worth a closer look

A purchase stands out when two or more of these hold: a senior insider, several insiders buying within 90 days, a fall of 10% or more in the three months before, or over $1 million. A sale outside a plan is judged the same way. These are the Feed's rules.

Who traded

dollars, twelve months

10 insiders traded. The most: Lindgardt Zhenya, sale outside a plan $291K.

One row per insider, sold to the left and bought to the right, split by grade: the paler part of a bar is the part that says little.

How it compares

every company on the site

Open-market sales, twelve months

Open-market purchases, twelve months

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every Form 4 line

    Purchase: bought on the open market with their own moneyTook pay in stock, own choice: owed cash, chose shares instead; a softer signSale: sold on the open market, not under a plan set in advanceSale, trading plan: under a Rule 10b5-1 plan set up months before, so the date was fixed in advanceGrey lines: plan purchases, pay in stock taken by the whole board or under a company plan, and units paid in cash; they say little about the insider's own view
    TradedInsiderRoleTypeSharesPriceValueFiling
    12 October 2026Inglis Tiffany Eul DavisChief Medical OfficerSaleafter a 7% rise over three months · 45% below its one-year high · Form 144 notice 13 October 20268,024$2.03$16,289Form 4
    10 September 2026Anderson Dyaarl Lee Jr.Chief Commercial OfficerSaleafter a 6% rise over three months · 45% below its one-year high · Form 144 notice 11 September 20261,800$2.00$3,600Form 4
    10 September 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 6% rise over three months · 45% below its one-year high · Form 144 notice 11 September 20267,022$2.00$14,044Form 4
    10 September 2026Inglis Tiffany Eul DavisChief Medical OfficerSaleafter a 6% rise over three months · 45% below its one-year high · Form 144 notice 11 September 2026486$2.00$972Form 4
    10 September 2026Jackson BenjaminGeneral CounselSaleafter a 6% rise over three months · 45% below its one-year high · Form 144 notice 11 September 20262,190$2.00$4,380Form 4
    8 September 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 6% fall over three months · 46% below its one-year high · Form 144 notice 9 September 202620,139$2.00$40,278Form 4
    11 June 2026Anderson Dyaarl Lee Jr.Chief Commercial OfficerSaleafter a 3% fall over three months · 53% below its one-year high4,739$2.01$9,525Form 4
    11 June 2026Aerts AustinChief Financial OfficerSaleafter a 3% fall over three months · 53% below its one-year high · Form 144 notice 10 June 20262,037$2.01$4,094Form 4
    11 June 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 3% fall over three months · 53% below its one-year high · Form 144 notice 10 June 20266,990$2.01$14,050Form 4
    11 June 2026Inglis Tiffany Eul DavisChief Medical OfficerSaleafter a 3% fall over three months · 53% below its one-year high362$2.01$728Form 4
    11 June 2026Jackson BenjaminGeneral CounselSaleafter a 3% fall over three months · 53% below its one-year high2,179$2.01$4,380Form 4
    9 June 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 16% rise over three months · 48% below its one-year high · Form 144 notice 10 June 202620,755$2.08$43,170Form 4
    9 June 2026Aerts AustinChief Financial OfficerSaleafter a 16% rise over three months · 48% below its one-year high · Form 144 notice 10 June 20265,440$2.08$11,315Form 4
    8 June 2026Lawrence Sandra AjDirectorSaletrading plan set in advance · Form 144 notice 8 June 20261,560$2.15$3,354Form 4
    11 March 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 20262,973$2.04$6,065Form 4
    11 March 2026Kearney PaulChief Data OfficerSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 20261,396$2.04$2,848Form 4
    11 March 2026Jackson BenjaminGeneral CounselSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 20261,027$2.04$2,095Form 4
    11 March 2026Harrison Robert GardnerChief Information OfficerSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 2026716$2.04$1,461Form 4
    11 March 2026Boniface John J.Chief Scientific OfficerSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 20261,517$2.04$3,095Form 4
    11 March 2026Aerts AustinChief Financial OfficerSaleafter a 43% fall over three months · 55% below its one-year high · Form 144 notice 12 March 20261,019$2.04$2,079Form 4
    10 March 2026Lindgardt ZhenyaChief Executive OfficerSaleafter a 40% fall over three months · 57% below its one-year high · Form 144 notice 11 December 202522,639$1.90$43,014Form 4
    10 March 2026Aerts AustinChief Financial OfficerSaleafter a 40% fall over three months · 57% below its one-year high · Form 144 notice 10 March 20266,069$1.90$11,531Form 4
    9 March 2026Kearney PaulChief Data OfficerSaleafter a 37% fall over three months · 55% below its one-year high · Form 144 notice 10 March 20262,026$1.96$3,971Form 4
    9 March 2026Jackson BenjaminGeneral CounselSaleafter a 37% fall over three months · 55% below its one-year high · Form 144 notice 10 March 20263,119$1.96$6,113Form 4
    9 March 2026Harrison Robert GardnerChief Information OfficerSaleafter a 37% fall over three months · 55% below its one-year high · Form 144 notice 10 March 20263,360$1.96$6,586Form 4
    9 March 2026Boniface John J.Chief Scientific OfficerSaleafter a 37% fall over three months · 55% below its one-year high · Form 144 notice 10 March 20263,038$1.96$5,954Form 4
    9 March 2026Aerts AustinChief Financial OfficerSaleafter a 37% fall over three months · 55% below its one-year high · Form 144 notice 10 March 2026674$1.96$1,321Form 4
    6 March 2026Lawrence Sandra AjDirectorSaletrading plan set in advance · Form 144 notice 6 March 20261,560$1.95$3,042Form 4
    24 February 2026Harrison Robert GardnerChief Information OfficerSaletrading plan set in advance · Form 144 notice 24 February 20262,000$2.34$4,680Form 4
    27 January 2026Harrison Robert GardnerChief Information OfficerSaletrading plan set in advance · Form 144 notice 27 January 20262,000$2.97$5,940Form 4
    30 December 2025Harrison Robert GardnerChief Information OfficerSaletrading plan set in advance · Form 144 notice 30 December 20252,000$3.00$6,000Form 4
    10 December 2025Lindgardt ZhenyaChief Executive OfficerSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 20254,155$3.31$13,753Form 4
    10 December 2025Kearney PaulChief Data OfficerSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 20251,213$3.31$4,015Form 4
    10 December 2025Jackson BenjaminGeneral CounselSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 2025892$3.31$2,953Form 4
    10 December 2025Harrison Robert GardnerChief Information OfficerSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 2025616$3.31$2,039Form 4
    10 December 2025Boniface John J.Chief Scientific OfficerSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 20251,332$3.31$4,409Form 4
    10 December 2025Aerts AustinChief Financial OfficerSaleafter a 11% rise over three months · 61% below its one-year high · Form 144 notice 11 December 2025873$3.31$2,890Form 4
    9 December 2025Lindgardt ZhenyaChief Executive OfficerSaleafter a 1% fall over three months · 65% below its one-year high · Form 144 notice 10 December 202528,215$3.04$85,774Form 4
    9 December 2025Aerts AustinChief Financial OfficerSaleafter a 1% fall over three months · 65% below its one-year high · Form 144 notice 10 December 20255,232$3.04$15,905Form 4
    8 December 2025Lawrence Sandra AjDirectorSaletrading plan set in advance · Form 144 notice 8 December 20251,560$3.05$4,758Form 4
    5 December 2025Mirza Mansoor RazaDirectorSaleafter a 8% fall over three months · 65% below its one-year high · Form 144 notice 5 December 2025292$3.05$891Form 4
    2 December 2025Harrison Robert GardnerChief Information OfficerSaletrading plan set in advance · Form 144 notice 2 December 20252,000$2.93$5,860Form 4
    2 December 2025Kearney PaulChief Data OfficerSaleafter a 13% fall over three months · 67% below its one-year high · Form 144 notice 2 December 202532,203$2.94$94,677Form 4
    26 November 2025Kearney PaulChief Data OfficerSaletrading plan set in advance · Form 144 notice 26 November 20251,986$3.51$6,971Form 4
    10 November 2025Lindgardt ZhenyaChief Executive OfficerSaleafter a 9% rise over three months · 71% below its one-year high11,594$2.62$30,376Form 4
    10 November 2025Kearney PaulChief Data OfficerSaleafter a 9% rise over three months · 71% below its one-year high7,073$2.62$18,531Form 4
    10 November 2025Jackson BenjaminGeneral CounselSaleafter a 9% rise over three months · 71% below its one-year high7,059$2.62$18,495Form 4
    10 November 2025Harrison Robert GardnerChief Information OfficerSaleafter a 9% rise over three months · 71% below its one-year high · Form 144 notice 4 November 20256,528$2.62$17,103Form 4
    10 November 2025Boniface John J.Chief Scientific OfficerSaleafter a 9% rise over three months · 71% below its one-year high7,767$2.62$20,350Form 4
    10 November 2025Aerts AustinChief Financial OfficerSaleafter a 9% rise over three months · 71% below its one-year high6,351$2.62$16,640Form 4
    5 November 2025Mirza Mansoor RazaDirectorSaleafter a 12% rise over three months · 65% below its one-year high · Form 144 notice 6 November 2025221$3.04$672Form 4
    4 November 2025Harrison Robert GardnerChief Information OfficerSaletrading plan set in advance · Form 144 notice 4 November 20252,000$3.07$6,140Form 4
    A filing with several lines appears once per line.
    Read morePay taken in stock by the insider's own choice has the filing's footnote, word for word, in the note under it; for the others, hold the pointer on the type. An award filed at no price shows n/a.