United States Professional & Commercial Services

Sera Prognostics Inc (SERA)

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Over the last 90 days, Sera Prognostics Inc. has seen significant insider selling activity, with a net value of -$961,324. Executives were responsible for all of this net selling. There were 31 total transactions, all of which were sales, totaling $218,275. The stock price has seen a modest increase of 8.4% over the same period.

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Ticker: SERA Exchange: NMS

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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings

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Company data & Insiders

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Trades

PAUL KEARNEY

Officer

1 sale — total 11,561 USD

Proposed sale 12 May 2026

Value US$679,434.13 | Price 63.55 | Shares 13,646

ROBERT HARRISON

Officer

1 sale — total 4,580 USD

Proposed sale 21 Apr 2026

Value US$2,682,416.08 | Price 494.47 | Shares 53,124

ROBERT HARRISON

Officer

1 sale — total 3,640 USD

Proposed sale 24 Mar 2026

Value US$3,640.00 | Price 1.82 | Shares 2,000

Lindgardt Zhenya

Chief Executive Officer

2 sales — total 12,133 USD

Sale 11 Mar 2026

Value US$6,064.92 | Price 2.04 | Shares 2,973

Proposed sale 11 Mar 2026

Value US$6,068.00 | Price 2.04 | Shares 2,973

Kearney Paul

Chief Data Officer

2 sales — total 5,698 USD

Sale 11 Mar 2026

Value US$2,847.84 | Price 2.04 | Shares 1,396

Proposed sale 11 Mar 2026

Value US$2,850.00 | Price 2.04 | Shares 1,396

Jackson Benjamin

General Counsel

2 sales — total 4,191 USD

Sale 11 Mar 2026

Value US$2,095.08 | Price 2.04 | Shares 1,027

Proposed sale 11 Mar 2026

Value US$2,096.00 | Price 2.04 | Shares 1,027

Harrison Robert Gardner

Chief Information Officer

2 sales — total 2,923 USD

Sale 11 Mar 2026

Value US$1,460.64 | Price 2.04 | Shares 716

Proposed sale 11 Mar 2026

Value US$1,462.00 | Price 2.04 | Shares 716

Aerts Austin

Chief Financial Officer

2 sales — total 4,159 USD

Sale 11 Mar 2026

Value US$2,078.76 | Price 2.04 | Shares 1,019

Proposed sale 11 Mar 2026

Value US$2,080.00 | Price 2.04 | Shares 1,019

Boniface John J.

Chief Scientific Officer

2 sales — total 6,192 USD

Sale 11 Mar 2026

Value US$3,094.68 | Price 2.04 | Shares 1,517

Proposed sale 11 Mar 2026

Value US$3,097.00 | Price 2.04 | Shares 1,517

Lindgardt Zhenya

Chief Executive Officer

2 sales — total 86,042 USD

Sale 10 Mar 2026

Value US$43,014.10 | Price 1.90 | Shares 22,639

Proposed sale 10 Mar 2026

Value US$43,028.00 | Price 1.90 | Shares 22,639

Aerts Austin

Chief Financial Officer

2 sales — total 23,066 USD

Sale 10 Mar 2026

Value US$11,531.10 | Price 1.90 | Shares 6,069

Proposed sale 10 Mar 2026

Value US$11,535.00 | Price 1.90 | Shares 6,069

Jackson Benjamin

Officer

1 sale — total 6,123 USD

Proposed sale 9 Mar 2026

Value US$6,123.00 | Price 1.96 | Shares 3,119

Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other

Notification date	Transaction date	B/S Transaction type	Insider and/or position	Nb. shares Price Value	Number of shares	Price	Value
2026-05-12	2026-05-12	PrS Proposed sale	3.5 PAUL KEARNEY Officer Officer	13,646 63.55 US$679,434	13,646	63.55	US$679,434
2026-04-21	2026-04-21	PrS Proposed sale	3.3 ROBERT HARRISON Officer Officer	53,124 494.47 US$2,682,416	53,124	494.47	US$2,682,416
2026-03-24	2026-03-24	PrS Proposed sale	3.3 ROBERT HARRISON Officer Officer	26,599 69.21 US$2,451,409	26,599	69.21	US$2,451,409
2026-03-12	2026-03-11	S Sale	3.7 Lindgardt Zhenya Chief Executive Officer Executive Director	2,973 -0.4% 2.04 US$6,065	2,973 -0.4%	2.04	US$6,065
2026-03-12	2026-03-11	S Sale	3.5 Kearney Paul Chief Data Officer Officer	1,396 -0.8% 2.04 US$2,848	1,396 -0.8%	2.04	US$2,848
2026-03-12	2026-03-11	S Sale	3.8 Jackson Benjamin General Counsel Officer	1,027 -0.9% 2.04 US$2,095	1,027 -0.9%	2.04	US$2,095
2026-03-12	2026-03-11	S Sale	3.3 Harrison Robert Gardner Chief Information Officer Officer	716 -0.9% 2.04 US$1,461	716 -0.9%	2.04	US$1,461
2026-03-12	2026-03-11	S Sale	3.5 Aerts Austin Chief Financial Officer Officer	1,019 -0.4% 2.04 US$2,079	1,019 -0.4%	2.04	US$2,079
2026-03-12	2026-03-11	S Sale	3.2 Boniface John J. Chief Scientific Officer Officer	1,517 -1.0% 2.04 US$3,095	1,517 -1.0%	2.04	US$3,095
2026-03-12	2026-03-11	PrS Proposed sale	3.7 Lindgardt Zhenya Officer; Director Executive Director	2,973 2.04 US$6,068	2,973	2.04	US$6,068
2026-03-12	2026-03-11	PrS Proposed sale	3.5 Kearney Paul Officer Officer	1,396 2.04 US$2,850	1,396	2.04	US$2,850
2026-03-12	2026-03-11	PrS Proposed sale	3.8 Jackson Benjamin Officer Officer	1,027 2.04 US$2,096	1,027	2.04	US$2,096
2026-03-12	2026-03-11	PrS Proposed sale	3.2 Boniface John J. Officer Officer	1,517 2.04 US$3,097	1,517	2.04	US$3,097
2026-03-12	2026-03-11	PrS Proposed sale	3.3 Harrison Robert Gardner Officer Officer	716 2.04 US$1,462	716	2.04	US$1,462
2026-03-12	2026-03-11	PrS Proposed sale	3.5 Aerts Austin Officer Officer	1,019 2.04 US$2,080	1,019	2.04	US$2,080
2026-03-12	2026-03-10	S Sale	3.7 Lindgardt Zhenya Chief Executive Officer Executive Director	22,639 -3.0% 1.90 US$43,014	22,639 -3.0%	1.90	US$43,014
2026-03-12	2026-03-10	S Sale	3.5 Aerts Austin Chief Financial Officer Officer	6,069 -2.2% 1.90 US$11,531	6,069 -2.2%	1.90	US$11,531
2026-03-12	2026-03-10	PrS Proposed sale	3.7 Lindgardt Zhenya Officer; Director Executive Director	22,639 1.90 US$43,028	22,639	1.90	US$43,028
2026-03-12	2026-03-10	PrS Proposed sale	3.5 Aerts Austin Officer Officer	6,069 1.90 US$11,535	6,069	1.90	US$11,535
2026-03-10	2026-03-09	PrS Proposed sale	3.8 Jackson Benjamin Officer Officer	3,119 1.96 US$6,123	3,119	1.96	US$6,123