PETER J BARRIS
CIK 1005561 · last filed 2026-05-26
PETER J BARRIS is a corporate insider who has filed 332 SEC Form 4 insider transactions across 60 companies since 2007. The most recent filing, for TEM, was dated May 26, 2026. Across all open-market trades the lifetime net is +$288.8M, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $19.40B 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
$19.40B
Companies
60
Total Filings
332
Lifetime Open-Market Net
$288.80M
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 |
|---|---|---|---|---|---|---|---|
| TEM | Director | 121,424 | $47.82 | $5.81M | $0 | 3 | 2026-05-26 |
| SPT | Director | 106,876 | $7.29 | $779.1K | $0 | 11 | 2026-05-21 |
| ZeroFox Holdings, Inc. (ZFOXW) Delisted | Director | 42,918 | $0.09 | $3.9K | $0 | 1 | 2022-12-15 |
| GRPN | Director | 55,175 | $17.01 | $938.5K | -$11.68M | 60 | 2022-07-25 |
| Berkshire Grey, Inc. (BGRYW) Delisted | Director | 156,713 | $0.34 | $53.3K | $0 | 3 | 2022-06-27 |
| NN | Director | 57,282 | $21.50 | $1.23M | $0 | 2 | 2022-06-23 |
| Regulus Therapeutics Inc. (RGLS) Delisted | 10%+ Owner | 2,052,454 | $8.16 | $16.75M | $1.23M | 2 | 2019-12-26 |
| ARDX | 10%+ Owner | 9,579,210 | $5.69 | $54.51M | $84.96M | 7 | 2019-12-09 |
| MIRM | 10%+ Owner | 4,186,243 | $99.34 | $415.88M | $6.75M | 1 | 2019-07-24 |
| GENOCEA BIOSCIENCES, INC. (GNCA) Delisted | 10%+ Owner | 7,225,676 | $0.00 | $4.3K | $14.69M | 2 | 2019-06-25 |
| TRVI | 10%+ Owner | 4,438,562 | $14.21 | $63.07M | $25.00M | 1 | 2019-05-13 |
| AVEO PHARMACEUTICALS, INC. (AVEO) Delisted | 10%+ Owner | 25,243,865 | $15.00 | $378.66M | $17.12M | 15 | 2019-04-08 |
| TESARO, Inc. (TSRO) Delisted | 10%+ Owner | 0 | — | — | $73.09M | 7 | 2019-01-22 |
| ESTC | 10%+ Owner | 13,864 | $60.35 | $836.7K | $0 | 1 | 2018-10-10 |
| ASND | 10%+ Owner | 82,978,668 | $218.06 | $18.09B | $49.02M | 4 | 2018-09-10 |
| BE | 10%+ Owner | 1,333,333 | $260.22 | $346.96M | $80.00M | 1 | 2018-07-31 |
| CRESCENT BIOPHARMA, INC. (GLYC) Delisted | 10%+ Owner | 4,995,664 | $15.70 | $78.43M | $7.83M | 3 | 2018-05-11 |
| Surface Oncology, Inc. (SURF) Delisted | 10%+ Owner | 3,179,544 | $1.07 | $3.40M | $2.00M | 1 | 2018-04-23 |
| 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 |
| Ra Pharmaceuticals, Inc. (RARX) Delisted | 10%+ Owner | 8,641,684 | — | — | $124.39M | 2 | 2018-02-21 |
| APPN | 10%+ Owner | 1,167 | $24.01 | $28.0K | -$66.07M | 4 | 2018-02-15 |
| SYBX | 10%+ Owner | 4,228,940 | $0.69 | $2.92M | $0 | 2 | 2018-01-26 |
| SENS | 10%+ Owner | 76,168 | $7.18 | $546.9K | $17.13M | 4 | 2017-12-08 |
| Care.com Inc (CRCM) Delisted | 10%+ Owner | 290 | — | — | $0 | 2 | 2017-11-08 |
| RYTM | 10%+ Owner | 4,359,956 | $88.38 | $385.33M | $9.35M | 1 | 2017-10-10 |
| Mersana Therapeutics, Inc. (MRSN) Delisted | 10%+ Owner | 7,140,138 | $29.08 | $207.64M | $15.00M | 1 | 2017-07-06 |
| MULESOFT, INC (MULE) Delisted | 10%+ Owner | 2,576,939 | — | — | $0 | 1 | 2017-03-22 |
| Achaogen, Inc. (AKAO) Delisted | 10%+ Owner | 5,215,128 | — | — | $6.75M | 1 | 2016-12-19 |
| XTERA COMMUNICATIONS, INC. (XCOM) Delisted | 10%+ Owner | 971,733 | — | — | $4.00M | 4 | 2016-10-13 |
| Roka BioScience, Inc. (ROKA) Delisted | 10%+ Owner | 3,216,810 | — | — | $4.60M | 3 | 2016-09-30 |
| Epizyme, Inc. (EPZM) Delisted | 10%+ Owner | 5,854,351 | $1.47 | $8.61M | $23.87M | 4 | 2016-01-12 |
| SUPN | 10%+ Owner | 0 | $44.41 | $0 | -$658.7K | 3 | 2015-11-12 |
| Avalo Therapeutics, Inc. (CERC.U) Delisted | 10%+ Owner | 594,245 | — | — | $0 | 1 | 2015-10-20 |
| SYNLOGIC, INC. (MIRN) Delisted | 10%+ Owner | 1,499,166 | — | — | $6.00M | 1 | 2015-10-06 |
| Vitae Pharmaceuticals, Inc (VTAE) Delisted | 10%+ Owner | 3,525,962 | — | — | $32.54M | 2 | 2015-07-02 |
| BOX | 10%+ Owner | 0 | $25.39 | $0 | $0 | 1 | 2015-01-29 |
| BOINGO WIRELESS, INC. (WIFI) Delisted | 10%+ Owner | 3,653,224 | $13.99 | $51.11M | -$15.63M | 5 | 2014-12-18 |
| Tableau Software Inc (DATA) Delisted | 10%+ Owner | 0 | — | — | -$110.31M | 11 | 2014-12-04 |
| CVENT INC (CVT) Delisted | 10%+ Owner | 2,639 | $8.52 | $22.5K | -$46.31M | 5 | 2014-11-28 |
| DERM | 10%+ Owner | 3,433,810 | $6.34 | $21.77M | $1.11M | 1 | 2014-10-08 |
| Viracta Therapeutics, Inc. (SNSS) Delisted | 10%+ Owner | 4,670,933 | $18.62 | $86.97M | -$6.84M | 2 | 2014-08-29 |
| Loxo Oncology, Inc. (LOXO) Delisted | 10%+ Owner | 1,789,420 | — | — | $3.00M | 1 | 2014-08-06 |
| AUDIENCE INC (ADNC) Delisted | 10%+ Owner | 14,390 | — | — | -$61.5K | 3 | 2013-11-06 |
| XOOM Corp (XOOM) Delisted | 10%+ Owner | 425 | — | — | $0 | 2 | 2013-10-31 |
| Clovis Oncology, Inc. (CLVS) Delisted | 10%+ Owner | 330 | $0.08 | $27 | $17.11M | 2 | 2013-06-05 |
| WDAY | 10%+ Owner | 117 | $130.80 | $15.3K | $0 | 2 | 2013-04-11 |
| Millennial Media Inc. (MM) Delisted | 10%+ Owner | 8,196,614 | — | — | -$21.48M | 2 | 2012-10-30 |
| FUSION-IO, INC. (FIO) Delisted | 10%+ Owner | 0 | — | — | -$44.30M | 14 | 2012-09-06 |
| HYPERION THERAPEUTICS INC (HPTX) Delisted | 10%+ Owner | 2,206,740 | — | — | $5.00M | 1 | 2012-08-02 |
| VG | Director | 262,258 | $13.08 | $3.43M | $0 | 26 | 2012-07-03 |
| INNERWORKINGS INC (WAGE) Delisted | Director | 35,549 | — | — | -$34.9K | 1 | 2012-05-31 |
| Echo Global Logistics, Inc. (ECHO) Delisted | Director | 5,847 | $48.24 | $282.1K | -$41.0K | 3 | 2012-04-30 |
| INNERWORKINGS INC (INWK) Delisted | Director | 50,549 | — | — | -$12.64M | 12 | 2012-03-30 |
| AMICUS THERAPEUTICS, INC. (FOLD) Delisted | 10%+ Owner | 1,066,029 | $14.49 | $15.45M | $6.40M | 3 | 2012-03-09 |
| TNDM | Director | 27,126 | $16.60 | $450.3K | -$25.80M | 16 | 2011-11-17 |
| Financial Engines, Inc. (FNGN) Delisted | 10%+ Owner | 49,093 | — | — | $0 | 2 | 2010-09-01 |
| INHIBITEX, INC. (INHX) Delisted | 10%+ Owner | 6,898,294 | — | — | $3.00M | 1 | 2009-10-30 |
| DZS INC. (ZHNE) Delisted | 10%+ Owner | 8,940,337 | — | — | $10.44M | 31 | 2008-03-10 |
| GLU MOBILE INC (GLUU) Delisted | 10%+ Owner | 4,794,443 | $12.50 | $59.93M | $0 | 1 | 2008-03-03 |
Recent Filings
332 filingsForm 4 transactions across all companies, newest first.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-26 | TEM | Grant (A) | +5,913 | $0 | EDGAR |
| 2026-05-21 | SPT | Grant (A) | +26,470 | $0 | EDGAR |
| 2025-05-23 | SPT | Grant (A) | +8,298 | $0 | EDGAR |
| 2025-05-22 | TEM | Grant (A) | +1,997 | $0 | EDGAR |
| 2024-06-17 | TEM | Mixed | +13,514 | $0 | EDGAR |
| 2024-05-23 | SPT | Grant (A) | +5,612 | $0 | EDGAR |
| 2023-07-24 | — | Disp (D) | −156,713 | $0 | |
| 2023-05-24 | SPT | Grant (A) | +3,895 | $0 | EDGAR |
| 2022-12-15 | ZeroFox Holdings, Inc. (ZFOXW) Delisted | Grant (A) | +42,918 | $0 | EDGAR |
| 2022-07-25 | GRPN | Grant (A) | — | $0 | EDGAR |
Showing 1–10 of 332
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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.