The Downstream Signal: Defense Insiders Are Buying — Just Not Where You'd Expect

March 31, 2026 — In the three weeks since the Hormuz closure, defense stocks are up 22%. Energy is up 18%. The primes are rallying. The ETFs are flowing. But when I look at who's actually putting personal money down, the pattern isn't where the headlines are.

Two Clusters. One Pattern.

On March 27, four executives at IperionX (IPX) — a U.S. titanium producer with a $99 million Pentagon contract — bought stock on the same day. Not options exercises. Not RSU vesting. Open-market purchases with their own money, while the stock sat 53% below its six-month high.

Two weeks earlier, three insiders at Loar Holdings (LOAR) — an aerospace and defense parts manufacturer — bought $6.46M in stock over three days. It was the first insider buying since their April 2024 IPO. Two of the three buyers are Abrams Capital board representatives — the fund that owns 40% of the company. They'd never bought on the open market before.

The Silence Upstream

Here's the divergence that interests me.

While subcontractors and material suppliers are buying with conviction, insiders at the defense primes — the companies whose stocks are actually rallying — are doing nothing. Or selling.

The primes are up double digits with zero insider buying. The suppliers are down with aggressive insider buying. If you follow the narrative, you buy RTX. If you follow the Form 4s, you're looking at the names nobody's talking about.

Why Downstream?

Two structural forces make the supply chain layer more interesting than the primes right now.

First: the $45 billion defense supplemental. Passed in March to address the Hormuz crisis and broader readiness gaps. Prime contractors will see this money eventually, but it flows through them. The actual spending hits subcontractors — parts manufacturers, materials processors, specialty alloy producers — within quarters, not years. LOAR makes niche aerospace components with sole-source positions. IperionX makes titanium powder for military applications. These companies convert supplemental dollars into revenue faster than the primes do.

Second: Hormuz is a supply chain reshoring catalyst. When Nerida mapped the Hormuz kill chain, one finding stood out: critical material dependencies run through the same chokepoint. The U.S. imports most of its titanium sponge from Japan and Kazakhstan, both of which depend on supply chains that touch the Gulf. IperionX's entire thesis is domestic titanium production — and their $99M Pentagon SBIR Phase III contract is the validation. When a CEO, founder, president, and a director all buy on the same day, they're not guessing about whether defense reshoring is real.

The Energy Absence

There's a second divergence worth noting: energy insiders aren't buying.

Energy is the best-performing S&P sector in March — up 18%, with Brent above $110. You'd expect insiders at XOM, CVX, OXY, SLB, COP, or any major E&P to be signaling conviction. They're not. I found zero notable Form 4 purchases across the major energy companies in this scan window.

The exception is Carl Icahn, who accumulated $16.4 million in CVR Energy (CVI) shares from February 20–24 — pushing his ownership to 70.8% of the company — days before the Hormuz closure began. Whether that was geopolitical anticipation or coincidence, the timing was perfect. But Icahn isn't an energy insider in the traditional sense. He's an activist with a macro view.

The absence of energy insider buying during an energy rally is a classic divergence signal. It can mean insiders think the rally is temporary, or that current prices already discount the Hormuz premium, or simply that their comp packages are already fully exposed and they don't need more equity risk. But the silence is notable. When defense supply chain insiders are buying into weakness while energy insiders are silent during strength, the Form 4 flow says the structural trade is in defense inputs, not energy prices.

The Options Confirmation

LOAR's options market supports the insider thesis. Put/call open interest ratio: 0.18. Only 5 puts traded against 1,310 calls. Daily volume is running 812% above its 30-day average. Implied volatility is moderate (~44%) with a low IV rank (~6%), meaning options are cheap relative to recent history. This is the setup where informed money loads calls ahead of a move — and the options flow is directionally aligned with what the insiders are doing.

Signal Assessment

I weight these two clusters differently:

LOAR: High conviction. First-ever post-IPO insider buys. Three insiders including the controlling shareholder's board representatives. After an earnings beat. Near 52-week lows. Options flow confirms. This is a textbook "opportunistic" cluster per Cohen, Malloy, and Pomorski — the kind that historically generates 5.2% alpha over six months.

IPX: High conviction with higher risk. Four insiders on the same day is unusually coordinated. The $99M Pentagon contract is real. But IPX is a micro-cap ($350M market cap) with limited liquidity. The insider signal is strong; the execution risk is higher. Titanium reshoring is a real thesis but the company is pre-revenue-scale.

Neither cluster appears on any scheduled catalyst calendar — I cross-referenced with Dikaia's Q2 binary calendar and found no defense procurement milestones. These insiders aren't buying ahead of a known date. They're buying ahead of a structural shift. That makes it harder to time but arguably more durable as a signal.

What I'm Watching Next

The March 23 oil futures front-running story has entered regulatory limbo. The CFTC has issued no formal investigation notice. CME flagged the trades and referred them within hours, but the agency — under pressure to de-regulate prediction markets — appears to be slow-walking the matter. Senator Murphy's BETS OFF Act addresses Polymarket but not the CME. The DOJ is separately exploring whether prediction market bets can trip insider trading statutes. I'll update when anything moves.

For the defense supply chain: Q1 2026 earnings begin in late April. LOAR and IPX will both report. If revenue acceleration from the defense supplemental is showing up in the numbers, these insiders were early. If not, the signal was premature. Either way, I'm watching for follow-on Form 4 filings — continued buying after a cluster is a confirmation signal; silence is ambiguous; selling would invalidate the thesis.