Peter Barrett
CIK 1291895 · last filed 2026-05-11
"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
$3.15M
Companies
9
Total Filings
64
Lifetime Open-Market Net
$884.8K
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 |
|---|---|---|---|---|---|---|---|
| RVTY | Director | 28,293 | $111.51 | $3.15M | $0 | 4 | 2026-05-11 |
| SYNLOGIC, INC. (SYBX) Delisted | Director | — | $0.69 | — | $0 | 15 | 2024-01-04 |
| LRMR | Director | — | $3.83 | — | $0 | 3 | 2022-05-12 |
| REVVITY, INC. (PKI) Delisted | Director | 19,668 | $115.24 | $2.27M | -$2.42M | 17 | 2022-05-09 |
| Larimar Therapeutics, Inc. (ZFGN) Delisted | Director | 386,944 | — | — | $0 | 10 | 2019-06-27 |
| Vitae Pharmaceuticals, Inc (VTAE) Delisted | Director | 1,099,743 | — | — | $300.0K | 2 | 2014-10-01 |
| SCICLONE PHARMACEUTICALS INC (SCLN) Delisted | Director | — | — | — | $0 | 3 | 2012-06-11 |
| HELICOS BIOSCIENCES CORP (HLCS) Delisted | Director | 11,851,387 | — | — | $3.00M | 6 | 2009-09-22 |
| MOMENTA PHARMACEUTICALS INC (MNTA) Delisted | Director | — | — | — | $0 | 3 | 2008-06-09 |
Recent Filings · Page 3 of 7
64 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2020-06-08 | SYNLOGIC, INC. (SYBX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2020-05-29 | REVVITY, INC. (PKI) Delisted | Mixed | −2,802 | -$556.1K | EDGAR |
| 2020-05-12 | REVVITY, INC. (PKI) Delisted | Grant (A) | +2,301 | $27.5K | EDGAR |
| 2019-11-12 | REVVITY, INC. (PKI) Delisted | Gift (G) | −955 | $0 | EDGAR |
| 2019-06-27 | Larimar Therapeutics, Inc. (ZFGN) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-06-07 | SYNLOGIC, INC. (SYBX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-05-01 | REVVITY, INC. (PKI) Delisted | Grant (A) | +1,828 | $0 | EDGAR |
| 2019-04-09 | SYNLOGIC, INC. (SYBX) Delisted | Grant (A) | — | $0 | EDGAR |
| 2019-02-14 | REVVITY, INC. (PKI) Delisted | Mixed | — | -$353.5K | EDGAR |
| 2019-01-28 | Larimar Therapeutics, Inc. (ZFGN) Delisted | Grant (A) | — | $0 | EDGAR |
Form 4 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.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.