Every Form 4 that Sera Prognostics, Inc. (SERA) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A Form 4 covers the transactions officers, directors and large holders report, so if you follow SERA and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full SERA filings page.
SERA PROGNOSTICS, INC. (SERA) reported that Chief Commercial Officer Dyaarl Lee Anderson Jr. sold 1,800 shares of Class A Common Stock on September 10, 2026 at a weighted average price of about $2.00 per share. The company states the shares were sold to cover tax withholding on vesting RSUs under a mandatory “sell to cover” arrangement and are not a discretionary sale. Following this transaction, he directly holds 76,198 shares of Class A Common Stock.
SERA PROGNOSTICS, INC. (SERA) reported that Chief Executive Officer and director Zhenya Lindgardt sold 7,022 shares of Class A Common Stock on September 10, 2026 at a weighted average price of about $2.00 per share. The sale was made to cover tax withholding on vesting RSUs under a mandated “sell to cover” arrangement and is described as not a discretionary transaction. After this sale, Lindgardt directly holds 837,848 shares of Class A Common Stock.
SERA PROGNOSTICS, INC. (SERA) reported that Chief Medical Officer Tiffany Eul Davis Inglis sold 486 shares of Class A Common Stock on September 10, 2026 at a weighted average price of about $2.00 per share. The sale was made solely to cover tax withholding on vesting RSUs and was mandated by the company’s sell-to-cover policy, leaving her with 91,589 directly held shares.
SERA PROGNOSTICS, INC. (SERA) reported that its General Counsel, Benjamin Jackson, sold 2,190 shares of Class A Common Stock on September 10, 2026 at a weighted average price of about $2.00 per share. The shares were sold to cover tax withholding on vested RSUs under a mandated "sell to cover" arrangement. After this transaction, he held 159,566 shares directly.
SERA PROGNOSTICS, INC. (SERA) director and Chief Executive Officer Zhenya Lindgardt reported selling 20,139 shares of Class A Common Stock on September 8, 2026, at a weighted average price around $2.00 per share. The shares were sold to cover tax withholding obligations from vesting RSUs under a mandated "sell to cover" arrangement and are not described as a discretionary trade. Following this transaction, Lindgardt directly holds 844,870 shares of SERA common stock. No Rule 10b5-1 trading plan is reported.
SERA PROGNOSTICS, INC. (SERA) reports that Aerts Austin, previously identified as Chief Financial Officer, is no longer designated as an officer of the company within the meaning of Rule 16a-1 of the Securities Exchange Act of 1934 as of August 31, 2026.
This Exit Form 4 contains no reported transactions and serves only to update the insider reporting status for Section 16 purposes.
SERA PROGNOSTICS, INC. (SERA) reported equity awards to Chief Financial Officer Scott Gleason on August 31, 2026. He received 117,924 RSUs, each representing one share of Class A common stock, and a stock option for 169,624 shares at an exercise price of $2.12 per share, expiring in 2036. Both awards vest over four years, with 25% vesting on September 10, 2027, and the remainder vesting in periodic installments thereafter, contingent on continued service.
Phillips Joshua reported acquisition or exercise transactions in this Form 4 filing.
Sera Prognostics director Joshua Phillips received equity compensation awards on July 10, 2026. He was granted RSUs covering 2,260 and 22,426 Class A shares that vest on the earlier of July 10, 2027 or the next annual meeting, plus stock options for 3,477 and 34,494 shares at $1.97, vesting monthly over one year and expiring July 10, 2036, all contingent on continued service.
Sera Prognostics, Inc. director Mirza Mansoor Raza reported equity awards dated July 10, 2026. He received RSU grants representing 1,771 and 22,426 shares of Class A common stock under the company’s non‑employee director compensation arrangements and equity plan.
He was also granted stock options for 2,725 and 34,494 shares at an exercise price of $1.97 per share, expiring July 10, 2036. The RSUs and options vest based on continued service, with vesting tied to the earlier of specific future dates or the next annual meeting. No sales were reported.
Sera Prognostics director Sandra AJ Lawrence reported new equity compensation grants. On July 10, 2026 she received 2,276 and 22,426 Class A RSU awards plus stock options for 3,501 and 34,494 shares at an exercise price of $1.97, expiring July 10, 2036. The RSUs vest on the earlier of July 10, 2027 or the next Annual Meeting of Stockholders, and the options vest in monthly installments over one year, in each case subject to her continued service; no open-market purchases or sales were reported.
Sera Prognostics director Kim P. Kamdar received equity compensation awards on July 10, 2026. Kamdar was granted 3,421 and 22,426 RSU-linked shares of Class A Common Stock at no cost, vesting on the earlier of July 10, 2027 or the next Annual Meeting of Stockholders, contingent on continued service. Kamdar also received stock options for 5,263 and 34,494 shares at an exercise price of 1.9700 per share, expiring July 10, 2036 and vesting in monthly installments over one year, with full vesting on the earlier of the first anniversary or the next Annual Meeting, subject to continued service.
Sera Prognostics director Gregory C. Critchfield received new equity awards on 2026-07-10. He was granted 1594.0000 and 22426.0000 Class A shares in the form of restricted stock units that vest on the earlier of 2027-07-10 or the next Annual Meeting of Stockholders, subject to continued service.
He also received stock options for 2452.0000 and 34494.0000 shares of Class A Common Stock at a 1.9700 per-share exercise price, vesting in 1/12 monthly installments over one year and expiring on 2036-07-10.
Sera Prognostics director Mark Christopher Capone received equity compensation on July 10, 2026: RSU awards for 1,975 shares vesting in three annual installments from July 10, 2027, and 42,404 RSUs vesting on the earlier of July 10, 2027 or the next Annual Meeting. He also received stock options for 3,037 and 62,766 shares at a $1.97 exercise price, vesting monthly over three years and one year, respectively, with all vesting contingent on continued service.
Sera Prognostics director Jane F. Barlow received equity compensation on July 10, 2026. She was granted 1,949 and 22,426 RSUs and stock options for 2,998 and 34,494 shares at a $1.97 exercise price, with vesting tied to continued board service and the next Annual Meeting of Stockholders.
SERA PROGNOSTICS, INC. Chief Commercial Officer Dyaarl Lee Anderson Jr. reported selling 4,739 shares of Class A Common Stock at a weighted average price of $2.01 per share. According to the disclosure, these shares were sold to cover tax withholding obligations from vesting restricted stock units and the transaction was mandated by the company’s sell-to-cover requirement, rather than being a discretionary trade. Following the sale, Anderson directly holds 77,998 shares.
Sera Prognostics, Inc. Chief Financial Officer Austin Aerts reported an open-market sale of 2,037 shares of Class A common stock at a weighted average price of $2.01 per share. According to the disclosure, these shares were sold solely to cover tax withholding obligations from vesting restricted stock units under a mandatory sell-to-cover policy, rather than as a discretionary trade. Following this tax-related sale, Aerts directly holds 301,190 shares of Sera Prognostics common stock.
SERA PROGNOSTICS, INC. Chief Executive Officer and director Zhenya Lindgardt reported a sale of 6,990 shares of Class A Common Stock at a weighted average price of $2.01 per share. According to the disclosure, this was a mandated “sell to cover” transaction to satisfy tax withholding on vesting restricted stock units, not a discretionary trade. After the sale, Lindgardt directly holds 865,009 shares, indicating the sale represents a very small portion of the reported holdings.
SERA PROGNOSTICS, INC. Chief Medical Officer Tiffany Eul Davis reported a small sale of Class A Common Stock tied to tax withholding on vested equity. She sold 362 shares on June 11, 2026 at a weighted average price of $2.01 per share as part of a block trade.
According to the disclosure, this transaction was a mandated “sell to cover” to satisfy tax withholding obligations from restricted stock unit vesting and was not a discretionary sale. After this sale, she directly holds 92,075 shares of SERA common stock.
SERA PROGNOSTICS, INC. General Counsel Benjamin Jackson reported an open-market sale of 2,179 shares of Class A Common Stock at a weighted average price of $2.01 per share. According to the disclosure, this sale was mandated to cover tax withholding on vesting restricted stock units through a required “sell to cover” arrangement, rather than a discretionary trade. Following the transaction, Jackson holds 161,756 shares directly.
SERA PROGNOSTICS, INC. Chief Executive Officer Zhenya Lindgardt reported an open-market sale of Class A common stock. The filing shows 20,755 shares sold at a weighted average price of $2.08 per share. The footnotes explain this was a mandated “sell to cover” transaction to satisfy tax withholding on vesting restricted stock units, not a discretionary sale. After the transaction, Lindgardt directly holds 871,999 shares.
Sera Prognostics Chief Financial Officer Austin Aerts reported an open-market sale of 5,440 shares of Class A common stock at a weighted average price of $2.08 per share. According to the disclosure, the shares were sold solely to cover tax withholding obligations triggered by vesting of restricted stock units under a mandatory “sell to cover” election, and were not a discretionary trade. After this transaction, Aerts directly holds 303,227 shares, indicating he retains a substantial equity position in the company.
Sera Prognostics director Sandra AJ Lawrence sold 1,560 shares of Class A common stock in an open-market transaction. The sale on June 8, 2026 was executed at a weighted average price of $2.15 per share, with individual trades ranging from $2.10 to $2.23. After the sale, Lawrence directly holds 16,473 shares. The transaction was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on June 10, 2025.
SERA PROGNOSTICS, INC. director Elliott Jeffrey Thomas filed a Form 4 reporting no stock transactions or holdings in this filing. The summary data show zero purchases, zero sales, zero derivative exercises, and no gifts, tax withholdings, or restructuring-related transfers.
Sera Prognostics General Counsel Benjamin Jackson acquired additional company stock through an employee plan. On May 29, Jackson acquired 5,000 shares of Class A common stock at $1.84 per share under Sera Prognostics’ 2021 Employee Stock Purchase Plan for the purchase period from December 1, 2025 to May 29, 2026. Following this acquisition, he directly holds 163,935 shares. The transaction is classified as a grant or award-type acquisition and is exempt under Rule 16b-3(d) and Rule 16b-3(c), indicating it is a routine, compensation-related purchase rather than a discretionary open-market trade.
Sera Prognostics, Inc.’s Chief Commercial Officer, Dyaarl Lee Anderson Jr., acquired 3,168 shares of Class A Common Stock at $1.84 per share. These shares were purchased through the company’s 2021 Employee Stock Purchase Plan for the purchase period from December 1, 2025 to May 29, 2026.
Following this transaction, he directly holds 82,737 shares of Class A Common Stock. The filing characterizes the event as a grant, award, or other acquisition exempt under Rule 16b-3(d) and Rule 16b-3(c), indicating a routine employee share purchase rather than an open-market trade.
SERA PROGNOSTICS, INC. officer Paul Kearney, Chief Data Officer, filed a Form 4 reporting no insider trading activity. The filing shows no reported purchases, sales, option exercises, gifts, tax withholdings, or other equity transactions, and no derivative positions listed for this period.
SERA PROGNOSTICS, INC. executive Harrison Robert Gardner, the Chief Information Officer, filed a Form 4 insider report. The provided data shows no reported purchases, sales, gifts, exercises, or other share transactions, and no derivative positions or holdings are listed in this filing.
SERA PROGNOSTICS, INC. filed a Form 4 for Chief Scientific Officer John J. Boniface. The filing shows no reported purchases, sales, gifts, exercises, or other insider transactions, with all transaction counts and share amounts listed as zero in the summary data.
SERA PROGNOSTICS, INC. reported that Chief Executive Officer Zhenya Lindgardt received new equity awards. She was granted 154,440 shares of Class A Common Stock in the form of restricted stock units at a price of $0.00 per share and a stock option covering 239,442 shares with an exercise price of $1.99 per share.
The RSUs vest over four years, with 1/16 of the original amount vesting in quarterly installments starting on March 10, 2026, as long as she continues to provide services. The stock options vest over four years in 1/48 monthly installments beginning on March 10, 2026. After these grants, she directly holds 892,754 shares of Class A Common Stock.
Sera Prognostics, Inc. reported that its General Counsel, Benjamin Jackson, received new equity compensation awards. He was granted 44,215 shares of Class A common stock, represented by restricted stock units, and 68,550 stock options with an exercise price of $1.9900 per share.
The RSUs vest over four years, with 1/16 of the original grant vesting in quarterly installments starting on March 10, 2026, contingent on continued service. The stock options also vest over four years, with 1/48 of the grant vesting in monthly installments beginning on March 10, 2026. Following these awards, Jackson directly holds 158,935 shares of Class A common stock and 68,550 stock options.
SERA PROGNOSTICS, INC. Chief Medical Officer Tiffany Eul Davis reported receiving new equity awards. She was granted stock options covering 27,034 shares of Class A Common Stock at an exercise price of $1.99 per share, expiring on March 12, 2036.
She also received 17,437 shares of Class A Common Stock in the form of restricted stock units. According to the terms, these RSUs vest over four years in quarterly installments starting on March 10, 2026, while the options vest monthly over four years from the same date, contingent on continued service.
SERA PROGNOSTICS, INC. Chief Commercial Officer Dyaarl Lee Anderson Jr. received new equity awards as part of his compensation. He was granted stock options covering 19,310 shares of Class A common stock at an exercise price of $1.99 per share, expiring on March 12, 2036. He also received 12,455 shares of Class A common stock in the form of restricted stock units. These RSUs vest over four years, with 1/16 of the original amount vesting in quarterly installments starting on March 10, 2026, while the options vest over four years with 1/48 vesting in monthly installments from the same date. Following these awards, his direct Class A common stock holdings total 79,569 shares.
Sera Prognostics, Inc. reported that Chief Financial Officer Austin Aerts received new equity awards consisting of restricted stock units and stock options. The grant includes 44,215 shares of Class A common stock in the form of RSUs and 68,550 stock options with an exercise price of $1.99 per share.
The RSUs vest over four years, with 1/16 of the original amount vesting in quarterly installments starting on March 10, 2026, contingent on continued service. The stock options vest over four years in 1/48 monthly installments starting on March 10, 2026 and expire on March 12, 2036. Following the RSU grant, Aerts directly holds 308,667 shares of Class A common stock.
Sera Prognostics, Inc. Chief Executive Officer Zhenya Lindgardt reported selling a total of 25,612 shares of Class A common stock in two open-market transactions on March 10 and March 11, 2026 at weighted average prices of $1.90 and $2.04 per share.
According to the disclosure, these sales were mandated "sell to cover" transactions to satisfy tax withholding obligations from vesting restricted stock units, and are not discretionary trades. After the transactions, Lindgardt directly holds 738,314 shares. The trades were executed as block trades within disclosed price ranges.
Sera Prognostics Chief Data Officer Paul Kearney reported an open-market sale of 1,396 shares of Class A Common Stock at a weighted average price of $2.04 per share. According to the disclosure, the shares were sold solely to cover tax withholding on vested RSUs under a mandatory “sell to cover” arrangement, and were not a discretionary trade. After this transaction, Kearney directly holds 163,961 shares of Sera Prognostics stock.
SERA PROGNOSTICS, INC. General Counsel Benjamin Jackson reported a small mandated share sale related to equity compensation. On March 11, 2026, he sold 1,027 shares of Class A common stock in a block trade at a weighted average price of $2.04 per share.
According to the disclosure, the sale was executed solely to cover tax withholding obligations triggered by the vesting of restricted stock units under a required “sell to cover” arrangement, meaning it was not a discretionary trade. After this transaction, Jackson directly holds 114,720 shares of Sera Prognostics common stock.
SERA PROGNOSTICS, INC. Chief Information Officer Robert Gardner reported an open-market sale of 716 shares of Class A common stock at a weighted average price of $2.04 per share. This reduced his direct holdings to 76,712 shares.
According to the footnotes, the sale was mandated to cover tax withholding obligations tied to vesting restricted stock units under a required “sell to cover” arrangement, and is described as a non-discretionary transaction rather than an elective share sale. The shares were sold as part of a block trade at prices ranging from $1.90 to $2.30 per share.
Sera Prognostics Chief Scientific Officer John J. Boniface reported an open-market sale of 1,517 shares of Class A common stock at a weighted average price of $2.04 per share. The sale was used to cover tax withholding obligations related to vesting restricted stock units and was mandated by the company’s sell-to-cover policy, not a discretionary trade. After the transaction, he directly holds 145,842 shares. The shares were sold in a block trade at prices ranging from $1.90 to $2.30 per share.
Sera Prognostics Chief Financial Officer Austin Aerts reported mandatory share sales tied to tax withholding on vested RSUs. On March 10 and March 11, he sold a total of 7,088 shares of Class A common stock in open-market block trades to cover tax obligations.
The sales occurred at weighted average prices of $1.90 and $2.04 per share, within disclosed ranges from $1.77 to $2.36. After these transactions, Aerts directly held 264,452 shares of Sera Prognostics common stock. The filing states these were not discretionary trades.
Sera Prognostics Chief Data Officer Paul Kearney reported an open-market sale of 2,026 shares of Class A common stock at a weighted average price of $1.96 per share on March 9, 2026. According to the disclosure, these shares were sold solely to cover tax withholding obligations arising from the vesting of restricted stock units under a mandatory “sell to cover” arrangement, meaning the transaction was not discretionary. Following this tax-related sale, Kearney continues to hold 165,357 shares of Sera Prognostics common stock.
Sera Prognostics General Counsel Benjamin Jackson reported a sale of 3,119 shares of Class A Common Stock at a weighted average price of $1.96 per share. This reduced his direct holdings to 115,747 shares. The shares were sold to cover tax withholding obligations from vesting restricted stock units under a mandatory “sell to cover” arrangement, meaning the transaction was not discretionary. The block trade was executed at prices ranging from $1.87 to $2.03 per share.
SERA PROGNOSTICS, INC. Chief Information Officer Robert Gardner reported a mandated sale of 3,360 shares of Class A common stock at a weighted average price of $1.96 per share. The shares were sold solely to cover tax withholding obligations tied to vesting restricted stock units under a required “sell to cover” election, rather than as a discretionary trade. Following the transaction, he directly holds 77,428 shares.
Sera Prognostics Chief Scientific Officer John J. Boniface reported a mandated share sale to cover taxes on vesting RSUs. He sold 3,038 shares of Class A Common Stock at a weighted average price of $1.96 per share, in block trades between $1.87 and $2.03. The company required a “sell to cover” transaction for tax withholding, so this was not a discretionary trade. After the sale, he directly owned 147,359 shares.
SERA PROGNOSTICS, INC. Chief Financial Officer Austin Aerts reported a small, mandated sale of Class A common stock to cover taxes from vesting restricted stock units. He sold 674 shares in a block trade at a weighted average price of $1.96 per share, with individual trades ranging from $1.87 to $2.03. After this tax-related sell-to-cover transaction, Aerts directly holds 271,540 shares of the company’s stock, indicating the sale was minor relative to his overall position and not a discretionary open-market sale.
SERA PROGNOSTICS, INC. director Sandra AJ Lawrence reported an open-market sale of 1,560 shares of Class A common stock at a weighted average price of $1.95 per share. The sale was made under a Rule 10b5-1 trading plan adopted on June 10, 2025. After this transaction, she directly holds 18,033 shares.
SERA PROGNOSTICS, INC. Chief Information Officer Harrison Robert Gardner reported an open-market sale of 2,000 shares of Class A Common Stock. The shares were sold at a weighted average price of $2.34 per share, in transactions ranging from $2.23 to $2.45. After this sale, Gardner directly holds 80,788 shares of Sera Prognostics common stock. The transaction was carried out under a pre-established Rule 10b5-1 trading plan adopted by the reporting person on May 21, 2025, which is designed to systematically execute trades according to preset instructions.
Sera Prognostics, Inc. director Kim P. Kamdar reported a restructuring of her holdings through a pro rata distribution by Domain Associates, LLC. Domain Associates distributed 30,920 shares of Class A common stock it held for her indirect benefit, for no consideration, reducing her indirect holdings to zero. As part of the same distribution, Kamdar received 3,231 shares of Class A common stock directly, also for no consideration, bringing her directly held stake to 32,573 shares. The transactions are coded as “J,” reflecting the internal reallocation and not a market purchase or sale.
Sera Prognostics, Inc. insider Harrison Robert Gardner, the company’s Chief Information Officer, reported selling 2,000 shares of Class A common stock on January 27, 2026 at a reported price of $2.97 per share. After this transaction, he beneficially owned 82,788 shares directly.
The sale was carried out under a pre-established Rule 10b5-1 trading plan that Gardner adopted on May 21, 2025. The filing notes the reported price is a weighted average, with individual trades executed between $2.92 and $3.06 per share.
Sera Prognostics, Inc. reported that its Chief Data Officer sold 1,213 shares of Class A common stock on 12/10/2025 at a weighted average price of $3.31 per share. These shares were sold solely to cover tax withholding obligations triggered by the vesting of restricted stock units, under the company's mandated "sell to cover" election, so the transaction was not discretionary. Following this sale, the officer beneficially owned 167,383 shares of Class A common stock directly.
Sera Prognostics, Inc. reported that its Chief Information Officer, an officer of the company, sold 616 shares of Class A common stock on 12/10/2025 at a weighted average price of $3.31.
According to the disclosure, the shares were sold to cover tax withholding obligations arising from the vesting of restricted stock units under a sale structure mandated by the company’s sell-to-cover election, and the transaction is not discretionary for the officer. Following this sale, the officer beneficially owns 86,788 shares directly.