<strong>Five companies submitted IPO registration statements in the four trading days before Labor Day, the highest weekly filing count since mid-July, while Aggreko—the UK-domiciled temporary power provider valued near $1.8 billion—anchored the group with a planned US direct listing. The cluster arrived as four SPACs also filed, refilling a vehicle class that had gone quiet through most of August.

One direct listing and four SPACs priced and began trading during the week. Lyntris, a defense contractor focused on hypersonic systems, and First Breach, a cybersecurity platform serving government clients, both closed the holiday-shortened period above their offer prices. The defense concentration followed $427 million in combined proceeds raised by similar names earlier in August. SPAC debuts included three blank-check vehicles targeting industrials and one aimed at healthcare rollups, each raising between $50 million and $75 million. Volume was muted—First Breach traded 1.1 million shares on its debut day, roughly half the float.

Aggreko's filing matters because it tests whether US institutional buyers will pay London-market multiples for industrial equipment exposure at a time when private equity exits are channeling through public markets instead of secondary sales. The company provides mobile power generation and temperature control to events, construction sites, and emergency response operations across 30 countries. TDR Capital and I Squared Capital have owned the business since a $3.3 billion take-private in 2021 and are selling roughly 40 percent of the equity in the US listing. The sponsors are not conducting a concurrent London offering, a structure that forces US allocators to establish the price discovery rather than arbitraging against a home-market reference. Aggreko ran $1.54 billion in trailing revenue with $312 million in adjusted EBITDA as of June, implying a mid-single-digit EBITDA multiple at the upper end of the projected range. That sits below the 7x to 9x range where US-listed industrial lessors have traded year-to-date, but Aggreko's customer concentration in events and utilities creates lumpier cash flow than pure construction equipment peers.

The other four filers include two software companies, one biotech, and a consumer products distributor. None disclosed projected proceeds above $200 million. The software names—one serving state and local government procurement, the other focused on supply chain visibility for mid-market manufacturers—both carry sub-$500 million post-money valuations based on their S-1 language. The biotech, developing a monoclonal antibody for autoimmune indications, has 18 months of cash at current burn and is raising to fund a Phase IIb trial starting in the fourth quarter. The consumer distributor operates a network of 140 franchise locations selling outdoor recreation equipment and filed to raise $85 million, primarily to pay down a credit facility that matures in March 2025.

Allocators should watch whether Aggreko prices in the week of September 9, which would be the first post-Labor Day launch and would set tone for whether September's traditional IPO corridor reopens or remains gated by election-year volatility. The four SPAC filings signal that sponsors still see a path to closing acquisition targets before the 18-month deadline wave that hits in the first quarter of 2025—23 SPACs face de-SPAC or liquidation by December 31. If Aggreko trades sideways or down in its first week, expect the two sub-$500 million software filers to delay roadshows until October, when third-quarter earnings clarity could stabilize tech multiples.

The biotech's March trial start date makes it a January 2025 filer if it pulls this attempt, but the consumer distributor's credit maturity leaves no calendar cushion—it prices by Thanksgiving or restructures the facility privately.