Bi-Weekly UpdateSep 28, 2026 · 7 pages · Free to read

Offshore Support and Marine Services Bi-Weekly Industry Events & M&A Update — September 14–28, 2026

Bi-weekly market and M&A update for Offshore Support and Marine Services, covering September 14–28, 2026 price action, company news and the M&A precedent record — for board members, corporate development teams and advisors tracking the sector.

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-4.7%
Sector Median Move: +0.8%
S&P 500 Return: -10.3%
Widest Decline (SMHI): 8.8x
Precedent Deal Median

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BI-WEEKLY INDUSTRY EVENTS & M&A UPDATE

INDUSTRIALS › TRANSPORTATION › OFFSHORE SUPPORT AND MARINE SERVICES

Prices Slip Across the Board While Owners Keep Funding and Contracting

This update covers the two-week period of September 14–28, 2026 in Offshore Support and Marine Services: what moved, what companies announced, and what changed in the transaction record.

September 14–28, 2026

Prepared by NeuraCap AI   ·   Confidential

Market data through 2026-09-28 · events and transactions from the two-week period 2026-09-14 → 2026-09-28

Offshore Support and Marine Services Bi-Weekly Update   |   September 14–28, 2026   |   Confidential   |   Not investment advice

Sources & methodology

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Executive summary

All 8 covered Offshore Support and Marine Services names declined over September 14–28, 2026, at a median -4.7%, while the S&P 500 returned +0.8%. Golar LNG priced a private notes offering and Cadeler signed an offshore wind maintenance MOU, evidence that funding access and contracting activity held despite the broad pullback. No new transactions were recorded, leaving the trailing precedent record's median of 8.8x EV/LTM EBITDA as the reference point for deal pricing.

Key findings

8 of 8 covered names fell while the S&P 500 gained +0.8%.
Golar priced a private notes offering while equity prices drifted lower.
Cadeler signed an MOU to explore next-gen offshore wind maintenance work.
No new deals closed; the trailing record's median stands at 8.8x EV/EBITDA.

What each page shows

The analyst’s walkthrough of the deck, page by page.

01
BI-WEEKLY INDUSTRY EVENTS & M&A UPDATE
INDUSTRIALS › TRANSPORTATION › OFFSHORE SUPPORT AND MARINE SERVICES
Cover slide introducing the bi-weekly Offshore Support and Marine Services events and M&A update for September 14–28, 2026.
This bi-weekly update covers Offshore Support and Marine Services for September 14–28, 2026. We walk through what moved, what companies announced, and what changed in the transaction record.
Everything on this page
BI-WEEKLY INDUSTRY EVENTS & M&A UPDATE INDUSTRIALS › TRANSPORTATION › OFFSHORE SUPPORT AND MARINE SERVICES Prices Slip Across the Board While Owners Keep Funding and Contracting This update covers the two-week period of September 14–28, 2026 in Offshore Support and Marine Services: what moved, what companies announced, and what changed in the transaction record. September 14–28, 2026 Prepared by NeuraCap AI · Confidential Market data through 2026-09-28 · events and transactions from the two-week period 2026-09-14 → 2026-09-28 Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 1
02
THE BI-WEEKLY BOTTOM LINE
Every Covered Name Gave Ground While the Wider Market Edged Up
Summarizes that every covered name declined while the S&P 500 rose over the two-week period.
Every one of the 8 covered names fell in this window, with a sector median move of -4.7%, while the S&P 500 returned +0.8%. SEACOR Marine Holdings (SMHI) led declines at -10.3%, followed by Cadeler A/S (CDLR) at -9.0%. Golar LNG (GLNG) priced a private notes offering during the period, showing funding access held even as prices slipped. So what: price weakness here looks broad-based rather than company-specific, and the funding and contracting news should be read separately from the tape.
Everything on this page
THE BI-WEEKLY BOTTOM LINE Every Covered Name Gave Ground While the Wider Market Edged Up The two-week period in one page · 8 covered names, close-to-close · September 14–28, 2026 Source: NeuraCap analytics platform (universe, prices, filings, transaction records); publisher-sourced news where linked; market data through 2026-09-28. Driver attributions use calibrated language and are NeuraCap reads of the recorded evidence. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 2 1 8 of 8 Covered Names Fell; The Median Move Was -4.7% The S&P 500 returned +0.8% over the same two-week period. SEACOR Marine Holdings Inc. (SMHI) at -10.3% and Cadeler A/S (CDLR) at -9.0% sat at the wide end of the declines. 2 Golar Went to the Debt Market and Got the Offering Priced Golar LNG Limited (GLNG) began fixed income investor meetings on September 21 and announced pricing of a private offering of unsecured senior notes due 2031 on September 24. NeuraCap's read: funding access for a Premium-tier name held while equity prices drifted. 3 Wind Maintenance Work Is Being Lined up Ahead of the Fleet Cadeler A/S (CDLR) entered a memorandum of understanding with an offshore wind owner to explore next-generation offshore wind maintenance solutions. It is an exploratory step, not contracted work, but it points at where the contracting calendar is widening. 4 No New Transactions; The Existing Record Still Sets the Reference Point Deal activity was quiet in the window. The trailing precedent record of 39 transactions carries a median EV/EBITDA of 8.8x, against the sector study's CY2027E median of 11.9x on forward earnings. -0.3% Best mover — Seapeak LLC (SEAL-PA) worst: SMHI -10.3% · 0 up / 8 down of 8 covered -4.7% Sector median two-week return vs S&P 500 +0.8%
03
PUBLIC MARKET MOVERS
Broad Selling with No Company-Specific Trigger on the Two Widest Declines
Shows the period's public market moves and notes no company-specific trigger identified for the two widest declines.
Sector prices moved broadly lower, with a median close-to-close move of -4.7% against a materiality bar of +7.1%. SEACOR Marine Holdings (SMHI) and Cadeler A/S (CDLR) posted the widest declines, at -10.3% and -9.0% respectively, without a recorded company-specific filing or headline that clearly explains either move. We read this as broad, sector-wide selling rather than name-specific news. So what: for names moving on no identified catalyst, we'd treat the pullback as a sector read, not a company signal.
Everything on this page
PUBLIC MARKET MOVERS Broad Selling with No Company-Specific Trigger on the Two Widest Declines Bi-Weekly moves, close-to-close · September 14–28, 2026 · sector median -4.7% · S&P 500 +0.8% · materiality bar ±7.1% (sector-relative) Source: NeuraCap analytics platform (universe, prices, filings, transaction records); publisher-sourced news where linked; market data through 2026-09-28. Attribution links each move only to filings and headlines recorded in the window; where no driver is recorded, the page says so. Calibrated language throughout — NeuraCap reads, not asserted causation. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 3 Bi-Weekly return per company · teal above zero, amber below · sector median -4.7% Cadeler A/S (CDLR) -9.0% No notable in-window news was identified that clearly explains the move. At -9.0%, the decline ran wider than the -4.7% median, with the largest single day of -4.6% on September 24. Installation and wind-service names can slip even as the contracting calendar widens; terms and coverage carry the value. UNEXPLAINED SEACOR Marine Holdings Inc. (SMHI) -10.3% No notable in-window news was identified that clearly explains the move. The -10.3% two-week decline ran wider than the -4.7% median across the covered names. Spot-exposed supply tonnage can move without company disclosure; charter coverage and backlog are what steady the story. UNEXPLAINED
04
MAJOR NEWS & INDUSTRY CATALYSTS
Companies Spent the Period Funding Balance Sheets and Lining up Work
Highlights the period's key company news: a priced debt offering and an offshore wind maintenance collaboration.
Golar LNG (GLNG) began fixed income investor meetings on September 21 and announced pricing of a private offering of unsecured senior notes due 2031 on September 24. Cadeler A/S (CDLR) separately entered a memorandum of understanding to explore next-generation offshore wind maintenance solutions. Neither event is a transaction, but together they point to funding access holding and the contracting calendar widening. So what: we'd treat both as evidence that operating fundamentals are moving independently of the two-week price action.
Everything on this page
MAJOR NEWS & INDUSTRY CATALYSTS Companies Spent the Period Funding Balance Sheets and Lining up Work The two-week period's highest-impact events · titles link to the underlying filing or article · September 14–28, 2026 Source: NeuraCap analytics platform (universe, prices, filings, transaction records); publisher-sourced news where linked; market data through 2026-09-28. "Why it matters" lines are NeuraCap reads; each event links to its source. Sources are admitted in a fixed reliability order (SEC filings, press releases, established outlets); video and social platforms are never used. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 4 Sep 23 · NEWS · Business Wire Oceaneering set October 21 for its third-quarter results and conference call The call is the sector's next scheduled read on subsea inspection, maintenance and repair demand and remotely operated vehicle spread activity from a Core-tier name. Operators pricing autumn subsea scope now have a fixed point for a peer's demand commentary. Sep 21 · NEWS · Business Wire Cadeler signed a memorandum of understanding to develop offshore wind maintenance solutions It places a wind turbine installation owner further into the service and maintenance side of the build-out, through its dedicated offshore wind service platform. Owners with prequalified, high-specification units are being brought into maintenance scope, not just installation. Sep 24 · NEWS · GlobeNewsWire Golar priced a private offering of unsecured senior notes due 2031 Unsecured paper placed against contracted floating gas assets shows those cash flows being underwritten on a different basis from open, spot-exposed fleet. Contracted infrastructure-style assets continue to access capital on terms that cyclical tonnage does not assume. Sep 21 · NEWS · GlobeNewsWire Golar mandated a syndicate of banks and began fixed income investor meetings Going out to fixed income investors before a benchmark offering signals a company confident it can fund on its own name. NeuraCap's read: it marks where a Premium-tier owner sits with lenders in the current market. Capital availability in this sector is being set by contract cover and counterparty quality, name by name.
05
M&A & STRATEGIC ACTIVITY
A Quiet Period for Transactions Leaves the Existing Record Doing the Pricing
Notes the transaction record was quiet in the window, leaving the trailing precedent set as the reference point.
No new transactions were recorded in this window, so the trailing precedent record of 39 deals continues to set the reference point, at a median 8.8x EV/LTM EBITDA. That compares with the sector study's CY2027E median of 11.9x on forward earnings. So what: acquirers pricing off today's record should anchor to the trailing multiple until fresh deal evidence arrives.
Everything on this page
M&A & STRATEGIC ACTIVITY A Quiet Period for Transactions Leaves the Existing Record Doing the Pricing September 14–28, 2026 · precedent transactions: 39 recorded deals · median 8.8x EV/LTM EBITDA Source: NeuraCap analytics platform (universe, prices, filings, transaction records); publisher-sourced news where linked; market data through 2026-09-28. Deal multiples are LTM at announcement where disclosed; "why the deal happened" is a NeuraCap read of the recorded evidence. No old transactions are re-presented as news. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 5 No Material Transactions Announced No material sector transactions were announced during the period. The trailing record of 39 precedent transactions still carries a median EV/EBITDA of 8.8x, and that remains the reference point buyers and sellers are working from. A quiet two-week period is information: buyer appetite, financing conditions and seller expectations all read through a period with no new deals. The precedent transactions alongside still frame what buyers have paid. 39 Recorded precedent transactions the reference set buyers and sellers price against 8.8x Precedent median EV/LTM EBITDA LTM at announcement, where disclosed
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WHAT IT MEANS
What the Period Changes for Owners, Buyers and Advisors
Translates the period's evidence into implications for owners, acquirers and advisors.
For owners and operators, coverage and specification carried names through a soft two weeks in which company news — a wind maintenance MOU and a priced notes offering — stayed constructive. For acquirers, the comparison set is unchanged at a median 8.8x EV/EBITDA, against tier medians of 31.4x, 11.9x and 5.3x from the sector study. For advisors, we'd lead conversations with contract cover and funding evidence rather than the two weeks of price action, where 8 of 8 covered names fell at a median -4.7%. So what: the period's operational signals argue for a steadier narrative than the tape alone suggests.
Everything on this page
WHAT IT MEANS What the Period Changes for Owners, Buyers and Advisors The two-week period translated for the people who act on it · NeuraCap view · observations, not recommendations Source: NeuraCap analytics platform (universe, prices, filings, transaction records); publisher-sourced news where linked; market data through 2026-09-28. This page is analytical interpretation drawn from the two-week period's recorded evidence. It is not investment advice. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice Sources & methodology 6 Sector study 2026-09-28 EV / EBITDA (CY2027E) median 11.9x 6 companies in the study 3 valuation tiers Standing thesis: Three Businesses Sit Under the Offshore Support and Marine Services Label, and the Market Prices Them Far Apart FOR OWNERS & OPERATORS Coverage and Specification Carry You Through a Soft Two Weeks Prices across the covered names moved together while company news stayed positive: a wind maintenance memorandum of understanding and a priced notes offering. FOR ACQUIRERS The Reference Set Is Unchanged; The Funding Evidence Is New With no new transactions in the window, the comparison set stays the trailing record at a median 8.8x EV/EBITDA, against the study's CY2027E sector median of 11.9x and tier medians of 31.4x, 11.9x and 5.3x. FOR ADVISORS Lead with Contract Cover, Not with the Two Weeks of Price Action The period's evidence is a debt offering priced against contracted assets, an offshore wind maintenance collaboration, and a scheduled earnings date — set against 8 of 8 covered names falling with a median move of -4.7%.
07
SOURCES & METHODOLOGY
Sources, Methodology and Important Notice
Explains the sources and methodology behind the update's figures and statements.
Every figure in this update links back to the filing, press release or market data point it was taken from, and driver attributions use calibrated language reflecting our read of the recorded evidence. We hold to a fixed source reliability order, and this material is analytical interpretation, not investment advice.
Everything on this page
SOURCES & METHODOLOGY Sources, Methodology and Important Notice How this bi-weekly update is built and what each kind of statement rests on · September 14–28, 2026 · market data through 2026-09-28 Every figure in this update links to the record it was taken from; the publishers and filings drawn on for the period are listed above. Offshore Support and Marine Services Bi-Weekly Update | September 14–28, 2026 | Confidential | Not investment advice 7 OBSERVED DATA Bi-Weekly stock moves are computed close-to-close over the stated window from the platform’s price series. Deal records, values and multiples come from the platform’s transaction record (SEC 8-K extractions) exactly as recorded; each figure links to its citation. Treasury rates come from the platform’s Treasury series and are shown only when the 10-year moved at least ten basis points over the window (it did not in this window, so no rate figures appear). UNIVERSE QUALITY The update universe is the platform’s approved company set for this sector, subject to a $100M market-cap floor so small, loosely related names cannot dominate the statistics. No covered name fell below the floor in this window. EVENTS & NEWS Company events are in-window 8-K filings; news items are publisher-sourced headlines fetched for the window (and any externally supplied items, marked as such). Operational and strategic developments (deals, partnerships, launches, expansion, guidance, leadership, regulatory outcomes) are shown first; capital-return mechanics and conference appearances are limited to one each. Every event links to its source. The deck never asserts an event that has no linked record. SOURCE HIERARCHY News is admitted in a fixed order of reliability: SEC filings first, then company press releases and investor-relations communications, then transaction documents, then established outlets (Reuters, CNBC, The Wall Street Journal, Barron’s and peers). Video and social platforms — including YouTube — are never used as sources. DRIVER ATTRIBUTION A stock move is linked to an event only when the event falls inside the window, and only in calibrated language ("the move appears to reflect…", "shares moved following…"). Where no driver is recorded, the page says so and compares the move to the sector median instead. ANALYTICAL INTERPRETATION "Why it matters", "why the deal happened" and the what-it-means page are NeuraCap analytical views drawn from the recorded evidence, and are labeled as such. INHERITED CONTEXT The standing sector view (thesis, valuation lens, sector median and tiering) is inherited from the NeuraCap sector study run_20260929T084755Z_416_prod (market data as of 2026-09-28) — distilled, never re-derived. That report’s own sources page governs its content; this update reads the period against it. IMPORTANT NOTICE This report is informational only. It is not investment advice, not a recommendation to buy or sell any security, and not an offer of any kind. Readers should perform their own diligence before acting on anything described here. Linked sources this two-week period: businesswire.com · globenewswire.com

Sources and methodology

This update covers Offshore Support and Marine Services over the 14-day window September 14–28, 2026; market data runs through September 28, 2026. The universe is the 8 listed companies whose core business is Offshore Support and Marine Services under NeuraCap's industry classification, subject to a $100M market-capitalisation floor so that very small, loosely related names cannot dominate the movers and statistics. Companies covered: Cadeler A/S (CDLR), Golar LNG Limited (GLNG), Oceaneering International, Inc. (OII), Seapeak LLC (SEAL-PA), SEACOR Marine Holdings Inc. (SMHI), Tidewater Inc. (TDW), Teekay Corporation (TK), Teekay Tankers Ltd. (TNK). No covered name fell below the floor in this window.

Window and company universe

How the moves and statistics are computed

Each company's period move is the change in closing price from the last close before the window to the last close inside it (close-to-close). The sector median is the median of those moves across the covered names; the index return is computed the same way for the S&P 500 over the same dates. The largest single-day move inside the window is shown for each mover. Movers are the largest gainers and losers by period move; the attribution cards prefer movers whose in-window record explains the move. Movers carry the valuation tier assigned in the standing sector study (the latest NeuraCap sector outlook) where that study rated them.

Events, news and how a move is attributed

Company events are the 8-K filings made inside the window; news items are publisher-sourced headlines for the window, admitted in a fixed order of reliability: SEC filings first, then company press releases and investor-relations communications, then established outlets (Reuters, CNBC, The Wall Street Journal, Barron's and peers). Video and social platforms are never used. A move is linked to an event only when the event falls inside the window and only in calibrated language; where nothing in the record explains a move, the update says so rather than speculating. Every event links to its source.

Transactions in the window and the trailing record

Transactions are taken from SEC filings by announcement date; 0 were announced inside the window. The trailing record of 39 recorded transactions provides the reference multiples (EV over last-twelve-month revenue or EBITDA at announcement, as disclosed). A value whose own citation describes something other than the price paid is not shown as the deal value; transactions where the acquirer and the target are the same entity are treated as reorganisations and excluded.

Sources

Prices and index levels are market data through September 28, 2026; filings are the companies' SEC filings on EDGAR; press releases are the companies' own; other news items are from the established outlets named on each card; Treasury yields are published by the U.S. Department of the Treasury. Every figure and every event in the update links to its record.

Interpretation and important notice

'Why it matters', 'why the deal happened' and the what-it-means page are NeuraCap analytical views drawn from the recorded evidence, labelled as such. The update is informational: it is not investment advice, not a recommendation to buy or sell any security and not an offer of any kind.

This report is published for information only. It is not a recommendation to buy or sell any security, an offer or solicitation, an appraisal or a fairness opinion, and no fiduciary relationship is created by reading it. Multiples that fail NeuraCap’s plausibility gates are excluded and never plotted. See the full methodology and the disclaimer.

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Offshore Support and Marine Services Bi-Weekly Industry Events & M&A Update — September 14–28, 2026

Key figures

Read the report

Executive summary

Key findings

What each page shows

INDUSTRIALS › TRANSPORTATION › OFFSHORE SUPPORT AND MARINE SERVICES

Every Covered Name Gave Ground While the Wider Market Edged Up

Broad Selling with No Company-Specific Trigger on the Two Widest Declines

Companies Spent the Period Funding Balance Sheets and Lining up Work

A Quiet Period for Transactions Leaves the Existing Record Doing the Pricing

What the Period Changes for Owners, Buyers and Advisors

Sources, Methodology and Important Notice