DDOG CTO Le-Quoc Cashless Exercise Hidden in Form 4 M Codes

Alexis Le-Quoc, Chief Technology Officer and co-founder of Datadog, filed a Form 4 covering two trading windows in April: April 6 and April 22. The headline numbers — granular S-coded sales at $117-133 across the two sessions — describe an apparently large CEO-style monetization event. Read the full filing and the structure is more nuanced. The April 6 transactions pair Table I S codes with Table II M codes at exercise prices of $10.74 (and $0 footnote prices). That is the cashless exercise pattern — the CTO is converting option strike economics into stock, then liquidating the stock to cover both the exercise cost and the resulting tax bill. The reported S transactions are the back end of a single integrated transaction, not a discretionary view shift.

Cumulative cosales now total $1.33 billion across 1,172 Form 4 transactions. Le-Quoc retains 531,311 shares after the latest activity. The cumulative ledger plus the cashless-exercise mechanics inform how readers should interpret today's price action versus claims of "CTO dumps stock." This guide unpacks what actually happened.

What Form 4 codes M and S together mean

Form 4 transaction codes encode the legal mechanics of each line. The pairing of M (option exercise) and S (open-market sale) on the same date — especially when the M-code reports an exercise price of $0 or a footnote-only price — typically describes a cashless-exercise sequence:

1. Step 1 (M code, Table II): The insider exercises stock options at the original grant strike price. For Le-Quoc on April 6, the exercise was 18,750 shares at $10.74, plus another 18,750 with no price reported (likely RSU vest or zero-strike grant).
2. Step 2 (S code, Table I): Some or all of the resulting Class A common shares are sold on the open market at prevailing prices ($117-133 across the April windows) to cover the exercise cost and federal/state withholding taxes due.
3. Net economic result: The insider ends up with fewer shares than the gross option count, but typically with positive after-tax cash plus a residual position. This is mechanically different from a discretionary sale of an existing long position.

Reading only the Table I S lines and concluding "CTO sells $X at $Y" misses the integrated transaction. The right read is: "CTO exercised vested options and sold to cover the strike and tax liability."

The Datadog story behind the timing

April 6 was a Sunday — actual trade execution was likely the following Monday. The pricing tier ($117-118 across the small lots) is consistent with that session's intraday range. April 22 trades printed at $130-133, capturing the post-earnings recovery cycle (Datadog reported Q4 fiscal 2026 earnings in mid-February and Q1 fiscal 2027 will print in early May 2026). The mid-April window is in the open-trading window between blackout periods.

The mechanical pattern across both windows — small lots at granular price tiers, no block trades — is consistent with broker algorithmic execution. Datadog's insider trading policy almost certainly imposes a Rule 10b5-1 plan structure on top of the cashless exercise economics; the price tiers are the broker filling against the plan parameters rather than discretionary timing.

The institutional book around Le-Quoc

Datadog has a 13F holder book dominated by index inventory at the top. The active conviction picture sharpens once that is filtered:

• BlackRock: $4.16 billion, 0.07% portfolio — index sleeve.
• Vanguard Capital Management: $2.52 billion, 0.06% portfolio — index sleeve.
• Fidelity (FMR LLC): $2.48 billion, 0.13% portfolio — active equity, slight overweight.
• Jennison Associates LLC: $1.04 billion, 0.62% portfolio. This is the meaningful active conviction. Jennison runs concentrated growth-equity strategies as the active arm of PGIM (Prudential Financial). A 0.62% portfolio weight on DDOG inside Jennison's $166.6 billion book places the position in the firm's top-30 names — a deliberate growth-equity overweight.
• Janus Henderson Group at 0.38% portfolio — slight active overweight.
• Goldman Sachs Group at 0.10% portfolio — mostly client custody, some active.

Jennison's 0.62% position is the cleanest signal. The fund family overweights high-quality SaaS growth names and has held DDOG through the 2024 multiple compression and the 2026 recovery. Le-Quoc's cashless-exercise sales do not appear to have triggered any Jennison reduction in recent quarters.

The 13G picture

The Schedule 13G/A history is interesting. Vanguard Group's beneficial ownership has oscillated — 12.96% at 2025-10-30, then 10.06% at 2025-07-07, then a more recent 7.46% at 2026-04-29. These shifts are partly mechanical (Vanguard's various entities consolidate and split filings periodically), but the overall direction is mild trimming of Vanguard's passive exposure as DDOG's market cap grew and rebalanced into different indexes.

Datadog itself filed Schedule 13G in late 2025 reporting Class A beneficial ownership — likely a share buyback or treasury-stock disclosure rather than insider concentration. No external activist has emerged.

What this tells institutional readers

Three takeaways:

1. The April 6 and April 22 Form 4s are cashless-exercise mechanics, not view shifts. Treating them as "CTO dumps DDOG" overstates the signal. The right reading is "vested options converted to cash, residual position 531,311 shares."
2. Le-Quoc's residual 531,311 shares are still substantial. At April 22 closing prices, this is $69 million of remaining direct exposure. Combined with any indirect holdings (trusts, foundations, deferred-compensation accounts not reported in Table II), the founder economic exposure remains meaningful.
3. Jennison's 0.62% portfolio overweight is the active-manager view to track. If Jennison trims DDOG in the Q2 2026 13F (due August 14), that is a real signal of conviction shift. The April Form 4 alone is not.

What to watch

1. Datadog's next earnings. Q1 fiscal 2027 earnings print in early May 2026 (the immediate forward catalyst). Net-new ARR growth and Datadog's exposure to AI-workload monitoring will drive the next price leg.
2. Any 10b5-1 plan refresh. Watch for footnotes on subsequent Form 4 filings indicating a new plan adoption date. A plan refresh after a stock rally typically locks in a higher price floor for forced execution.
3. Jennison's Q2 2026 13F (August 14, 2026). Track active-manager conviction shifts via the institutional signals feed.
4. Le-Quoc's residual position. Track quarter over quarter via Alexis Le-Quoc's profile. Sustained holding indicates plan-driven monetization; rapid further reduction would shift the read toward discretionary exit.

Le-Quoc's Form 4 looks like a CEO sell signal at first glance. The mechanics are cashless exercise plus tax-cover plus a small residual discretionary slice on top. The active-conviction story for Datadog still runs through Jennison and Fidelity, both of whom are positioned through and not against the founder selling cadence. For a primer on M-code cashless exercises in Form 4 filings, our explainer hub covers the topic in depth.

Source: SEC Form 4 filings dated 2026-04-06 and 2026-04-22, accession listings at EDGAR — Le-Quoc Alexis filer index; cross-checked against Datadog Schedule 13G filings.