Peter W. Sonsini

CIK 1559807 · last filed 2022-12-22

Peter W. Sonsini is a corporate insider who has filed 87 SEC Form 4 insider transactions across 32 companies since 2014. The most recent filing, for ACLX, was dated Dec 22, 2022. Across all open-market trades the lifetime net is +$647.0M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $3.29B across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$3.29B

Companies

32

Total Filings

87

Lifetime Open-Market Net

$646.98M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
Arcellx, Inc. (ACLX) Delisted 10%+ Owner 4,850,214 $115.07 $558.11M $190.00M 2 2022-12-22
Akouos, Inc. (AKUS) Delisted 10%+ Owner 0 $13.29 $0 $10.00M 2 2022-12-02
IONQ.WS 10%+ Owner 0 $46.23 $0 $0 1 2022-11-18
AVEO PHARMACEUTICALS, INC. (AVEO) Delisted 10%+ Owner 24 $15.00 $360 $24.62M 17 2022-10-21
NeueHealth, Inc. (BHG) Delisted 10%+ Owner 22,288,629 $16.35 $364.42M $35.00M 3 2022-10-19
GENOCEA BIOSCIENCES, INC. (GNCA) Delisted 10%+ Owner 0 $0.00 $0 $21.03M 4 2022-05-26
HOOD Director 30,431 $93.19 $2.84M $0 5 2022-05-04
TRVI 10%+ Owner 10,421,428 $14.21 $148.09M $31.80M 4 2022-04-13
Metacrine, Inc. (MTCR) Delisted 10%+ Owner 2,734,189 $0.49 $1.35M $9.51M 2 2021-12-27
GLUE 10%+ Owner 5,973,296 $18.23 $108.92M $19.95M 1 2021-06-30
Desktop Metal, Inc. (DM) Delisted 10%+ Owner 54 $4.96 $268 $0 1 2021-06-10
Eargo, Inc. (EAR) Delisted 10%+ Owner 30,000 $2.57 $77.1K $5.60M 2 2021-05-26
OnKure Therapeutics, Inc. (RPHM) Delisted 10%+ Owner 4,785,494 $18.20 $87.10M $90.00M 1 2021-04-15
MRKR 10%+ Owner 10,714,285 $1.38 $14.79M $10.00M 1 2021-03-18
Regulus Therapeutics Inc. (RGLS) Delisted 10%+ Owner 6,451,056 $8.16 $52.64M $3.96M 3 2020-12-07
Mersana Therapeutics, Inc. (MRSN) Delisted 10%+ Owner 745 $29.08 $21.7K $150.00M 4 2020-09-16
Inozyme Pharma, Inc. (INZY) Delisted 10%+ Owner 2,187,689 $4.00 $8.75M $4.00M 1 2020-07-28
NKTX 10%+ Owner 522,639 $2.86 $1.49M $12.00M 1 2020-07-16
Surface Oncology, Inc. (SURF) Delisted 10%+ Owner 6,072,421 $1.07 $6.50M -$10.28M 2 2020-05-22
Adaptimmune Therapeutics PLC (ADAP) Delisted 10%+ Owner 82,978,668 $0.06 $4.80M $5.00M 1 2020-01-28
ARDX 10%+ Owner 3,082,186 $5.69 $17.54M $23.33M 4 2019-12-09
MIRM 10%+ Owner 3,736,243 $99.34 $371.18M $6.75M 1 2019-07-24
ASND 10%+ Owner 12,000,000 $218.06 $2.62B $49.02M 4 2018-09-10
Oruka Therapeutics, Inc. (ABIO) Delisted 10%+ Owner 0 $28.80 $0 -$731.3K 1 2018-02-27
Cascadian Therapeutics, Inc. (CASC) Delisted 10%+ Owner 10,882,574 $0 1 2018-02-22
APPN 10%+ Owner 27,581 $24.01 $662.2K -$66.07M 4 2018-02-15
SYBX 10%+ Owner 4,228,940 $0.69 $2.92M $0 2 2018-01-26
MULESOFT, INC (MULE) Delisted 10%+ Owner 12,679,970 $0 1 2017-03-22
Achaogen, Inc. (AKAO) Delisted 10%+ Owner 5,215,128 $13.50M 2 2016-12-19
Avalo Therapeutics, Inc. (CERC.U) Delisted 10%+ Owner 594,245 $0 1 2015-10-20
SYNLOGIC, INC. (MIRN) Delisted 10%+ Owner 2,082,725 $6.00M 1 2015-10-06
Loxo Oncology, Inc. (LOXO) Delisted 10%+ Owner 1,789,420 $3.00M 1 2014-08-06

Recent Filings

87 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2022-12-22 Arcellx, Inc. (ACLX) Delisted Other (J) −1,999,179 $0 EDGAR
2022-12-02 Akouos, Inc. (AKUS) Delisted U −4,294,207 $0 EDGAR
2022-11-18 IONQ.WS Other (J) −11,687,067 $0 EDGAR
2022-10-21 AVEO PHARMACEUTICALS, INC. (AVEO) Delisted Other (J) −3,951,334 $0 EDGAR
2022-10-19 NeueHealth, Inc. (BHG) Delisted Buy (P) $0 EDGAR
2022-05-26 GENOCEA BIOSCIENCES, INC. (GNCA) Delisted Sell (S) −10,376,936 -$750.7K EDGAR
2022-05-04 HOOD Other (J) −23,813,965 $0 EDGAR
2022-04-13 TRVI Buy (P) +3,580,526 $6.80M EDGAR
2022-02-09 Arcellx, Inc. (ACLX) Delisted Mixed +51,462,096 $190.00M EDGAR
2022-02-01 HOOD Other (J) −23,856,861 $0 EDGAR
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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.