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Company
▲ Purchases (0 ops.)
▼ Sales (27 ops.)
Latest filing published 12 Mar 2026 for Sera Prognostics, INC., €1,258. Read the official filing
Filing timeline
BuySaleRobert Gardner Harrison
Insider track record
Disclosed buys
0
Disclosed sells
27
Signal history
Robert Gardner Harrison: trading record in brief
Robert Gardner Harrison is a declared insider of Sera Prognostics, Inc., with filings sourced from SEC (Form 4). In total, 30 filings cover trades dated from 6 March 2023 to 11 March 2026.
Sales make up the whole of the open-market record (27 sales, €437k). Besides market trades, the filings include 3 share grants. Since January 2026: no purchases and 4 sales on the market.
The newest entry dates from 12 March 2026: an open-market sale of €1,258, in Sera Prognostics, Inc. Typically, a trade is published a median of 1 day after it takes place. US insiders must file a Form 4 within two business days of a trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. This summary is built from SEC (Form 4) disclosures alone and does not predict where the share price will go.
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Declarations30 total
716 shares@ US$2.040.3% of flowClass A Common StockSEC:0001193125-26-104707:0
3,360 shares@ US$1.961.3% of flowClass A Common StockSEC:0001193125-26-100528:0
2,000 shares@ US$2.340.9% of flowClass A Common StockSEC:0001193125-26-067712:0
2,000 shares@ US$2.971.1% of flowClass A Common StockSEC:0001193125-26-024859:0
2,000 shares@ US$3.001.2% of flowClass A Common StockSEC:0001193125-25-337380:0
616 shares@ US$3.310.4% of flowClass A Common StockSEC:0001193125-25-316499:0
2,000 shares@ US$2.931.2% of flowClass A Common StockSEC:0001193125-25-306710:0
6,528 shares@ US$2.623.4% of flowClass A Common StockSEC:0001193125-25-277705:0
2,000 shares@ US$3.071.2% of flowClass A Common StockSEC:0001193125-25-265180:0
2,000 shares@ US$3.181.2% of flowClass A Common StockSEC:0001193125-25-234568:0
645 shares@ US$3.130.4% of flowClass A Common StockSEC:0000950170-25-114576:0
2,000 shares@ US$3.051.2% of flowClass A Common StockSEC:0001421563-25-000009:0
6,000 shares@ US$2.222.6% of flowClass A Common StockSEC:0001421563-25-000007:0
5,962 shares@ US$2.543.0% of flowClass A Common StockSEC:0001421563-25-000005:0
667 shares@ US$1.480.2% of flowClass A Common StockSEC:0000950170-25-085021:0
6,551 shares@ US$2.443.3% of flowClass A Common StockSEC:0000950170-25-068388:0
3,874 shares@ US$4.163.4% of flowClass A Common StockSEC:0000950170-25-036529:0
25,770 shares0Class A Common StockSEC:0000950170-25-035801:0
3,610 shares@ US$4.283.4% of flowClass A Common StockSEC:0000950170-25-021248:0
7,297 shares@ US$4.587.4% of flowClass A Common StockSEC:0000950170-25-021187:0
554 shares@ US$3.970.5% of flowClass A Common StockSEC:0000950170-25-020182:0
12,372 shares@ US$7.3020.1% of flowClass A Common StockSEC:0000950170-25-005575:0
4,727 shares@ US$7.327.4% of flowClass A Common StockSEC:0000950170-24-125644:0
5,022 shares@ US$7.427.8% of flowClass A Common StockSEC:0001534969-24-000165:0
4,902 shares@ US$9.5910.0% of flowClass A Common StockSEC:0001534969-24-000092:0
25 of 30 declarations
