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Summit Investors I, LLC

CIK 1435565 · last filed 2018-11-09

Summit Investors I, LLC is a corporate insider who has filed 11 SEC Form 4 insider transactions across 5 companies since 2011. The most recent filing, for ATEN, was dated Nov 13, 2024. Across all open-market trades the lifetime net is −$1.17B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $2.02B across reported positions. The firm reports its address in Boston, MA. 44 SEC filings were submitted jointly with Summit Investors I (UK), L.P.

"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

$2.02B

Companies

5

Total Filings

11

Lifetime Open-Market Net

-$1.17B

Filer Profile

Reported Address
222 BERKLEY STREET
18TH FLOOR
BOSTON, MA 02116
Phone
(617) 824-1100
State of Incorporation
DE
Formerly Known As
SUMMIT INVESTORS I LLC (2008–2008)
Related Filers
Summit Investors I (UK), L.P. — 44 joint filings, latest 2023-03-07
Summit Partners Private Equity Fund VII B L P — 27 joint filings, latest 2018-04-30
Summit Partners Private Equity Fund VII-A, L.P. — 27 joint filings, latest 2018-04-30
SUMMIT PARTNERS L P — 19 joint filings, latest 2023-03-07
SUMMIT MASTER COMPANY, LLC — 18 joint filings, latest 2023-03-07
Summit Investors Management, LLC — 16 joint filings, latest 2022-09-09
Summit Partners Growth Equity Fund VIII-A, L.P. — 15 joint filings, latest 2023-03-07
MARTIN J MANNION — 12 joint filings, latest 2022-09-09
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

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
ATEN Director 18,943,375 $26.02 $492.91M $0 4 2018-11-09
Acacia Communications, Inc. (ACIA) Delisted 10%+ Owner 2,896,329 — — $0 1 2016-05-20
MTSI 10%+ Owner 6,215,938 $245.57 $1.53B -$5.30M 1 2015-06-02
CORPAY, INC. (FLT) Delisted 10%+ Owner 8,632,156 $303.26 $2.62B -$1.06B 1 2013-03-13
Ubiquiti Inc. (UBNT) Delisted 10%+ Owner 16,095,543 — — -$109.54M 2 2012-12-03

Recent Filings

11 filings
Insider 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
2024-11-13 ATEN Notice (144) −1,840 -$30.7K EDGAR
2024-05-20 ATEN Notice (144) −14,049 -$216.4K EDGAR
2018-11-09 ATEN Grant (A) +231,120 $0 EDGAR
2017-06-02 ATEN Grant (A) +183,590 $0 EDGAR
2016-06-03 ATEN Grant (A) +225,900 $0 EDGAR
2016-05-20 Acacia Communications, Inc. (ACIA) Delisted Conv (C) +26,066,961 $0 EDGAR
2015-06-02 MTSI Sell (S) −138,260 -$5.30M EDGAR
2014-03-28 ATEN Conv (C) +37,711,384 $0 EDGAR
2013-03-13 CORPAY, INC. (FLT) Delisted Sell (S) −15,000,000 -$1.06B EDGAR
2012-12-03 Ubiquiti Inc. (UBNT) Delisted Sell (S) −4,000,000 -$46.20M EDGAR
Showing 1–10 of 11
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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.