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SKYT SkyWater Technology, Inc Insider Trading

Latest: CFO Sold $2.6M of Shares · May 2026

SkyWater Technology, Inc (SKYT)'s reported leadership includes CEO Thomas Sonderman. Its Form 4 history breaks down as 0 buys and 22 sells, filed by 2 distinct insiders through May 2026. Its highest-significance filing in the last 90 days: CFO Manko Steve sold $2.6M, transaction dated May 2026.

22 filings analyzed · Latest 2026-05-13

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Buys
0
Sells
22
Insiders
2
Direction
Net selling

SkyWater Technology, Inc leadership

CEO
Thomas Sonderman — Chief Executive Officer
CFO
Steve Manko — Chief Financial Officer
COO
John Sakamoto — President and Chief Operating Officer
General Counsel
Joseph J. Humke — Executive Vice President, General Counsel and Corporate Secretary
Chair
Timothy E. Baxter — chair of the Board

Historically, stocks have lagged the S&P 500 by a median ~3% over the 90 days after a medium insider sell (n ≈ 4,738, 2024-2026). Past results don't predict the future. How we measure this ↗

May 2026
2026-05-13 10b5-1 Plan
medium
CFO
75,000 shares
$2,630,625
@ $35.08
Significance 4

CFO Manko Steve sells 75,000 shares (44% of holdings) for $2.63M as stock rebounds from multi-year lows.

CFO Manko Steve has divested a substantial portion of his stake—nearly 44% of his holdings—marking his sixth open-market sale of SKYT stock in the past three years. The timing is notable: the stock has rallied sharply from deep weakness and is now trading modestly below its 52-week high, a posture that typically attracts profit-taking. His prior five sales at this ticker showed mixed results: four were poorly timed as the stock rose after each exit, but one was well-timed as shares declined afterward—a pattern that does not strongly support conviction in recent or near-term downside. The company itself is profitable with solid revenue growth, but the most recent quarter saw a sharp swing to losses, which may have weighed on the CFO's confidence. This appears to be a high-conviction reduction in exposure at a moment of strength, not a routine rebalance—the magnitude and the insider's role as an officer with operational visibility make this worth tracking, though the mixed historical accuracy of his prior exits tempers any bearish inference.

April 2026
2026-04-16 10b5-1 Plan
medium
CFO
84,215 shares
$2,560,810
@ $30.41
Significance 5

CFO Manko Steve sold 84,215 shares of SKYT at $30.41 for $2,560,809.72; now holds 171,567 shares.

Manko Steve, CFO of SkyWater Technology, sold 84,215 shares (−32.9% of pre-transaction holdings) at $30.41 on 2026-04-14 for a total of $2,560,809.72. The stock is currently at $32.53, near its 52-week high of $34.78 and up 17.5% over the past 30 days. At this ticker, his prior 5 trades (all sells) show a mixed pattern: 0 of 3 measurable 90-day outcomes were well-timed; the most recent prior sale on 2025-11-14 resulted in a 90-day return of +63.3%, indicating the stock rose substantially after his sale. Fundamentals remain solid (annual revenue growth +29.2%, P/E 6.21, $144.0M net income), and the company's market cap stands at $1.6B. The sale represents a substantial reduction in his holdings and occurs at a price well below the 52-week high, yet the overall pattern at this ticker does not suggest consistent timing ability relative to subsequent price movements.

March 2026
2026-03-18 10b5-1 Plan
medium
CFO
91,109 shares
$2,536,458
@ $27.84
Significance 6

CFO Manko Steve sold 91,109 shares at $27.84 for $2.5M, reducing stake by 29.7% to 215.2K shares

CFO Steve Manko executed 2 separate sales totaling 91,109 shares for $2,536,458.28, representing a 29.7% reduction in his post-transaction holdings at SkyWater Technology. The sales occurred at $27.84, which is 21.3% below the 52-week high of $34.78 and 1.8% above current price of $27.36. Regarding timing context: his prior 4 measurable sales at SKYT showed 0 well-timed outcomes at the 90-day mark, with post-sale 90-day returns ranging from +2.8% to +63.3%, suggesting the stock continued rising after his prior exits. SKYT fundamentals show strong absolute performance (revenue $150.7M, net income $144.0M, annual growth +29.2%, P/E 5.22), though the stock has declined 6.4% in the prior 30 days from the sale date, which may provide context for evaluating whether this exit precedes further weakness or represents missed upside.

December 2025
2025-12-01
low
100,000 shares
$1,454,310
@ $14.54
Significance 4

Director Loren A Unterseher sold 100,000 shares of SKYT at $14.54 for $1.5M on 2025-11-26; retains 4,487,394 shares.

Director Loren A Unterseher sold 100,000 shares at $14.54, representing 2.2% of his pre-transaction holdings, maintaining a substantial 4.49M share position. The sale occurred at a price -35.4% below the 52-week high of $23.64, and the stock has declined -12.7% over the past 30 days despite a +37.6% gain over 90 days. His cross-ticker track record shows an average 90-day return of +39.4% following his prior 20 sales across all holdings, with a 0.00% well-timed rate, indicating those prior sales generally preceded stock appreciation rather than declines. At SKYT specifically, his most recent sales on 2025-11-24 and 2025-11-21 are too recent to measure outcomes; his September sales showed mixed near-term performance (one -4.0% at 30 days, others positive). The company's fundamentals show strong recent revenue of $150.7M with net income of $144.0M, annual revenue growth of +19.4%, and a low P/E of 5.87, though it was unprofitable on a full-year basis despite quarterly profitability.

November 2025
2025-11-25
medium
200,000 shares
$2,865,310
@ $14.33
Significance 5

Director Unterseher sold 200,000 SKYT shares (200.0K shares) for $2.9M on Nov 21–24 at $14.33 avg; stock down -37.4% from 52-week high.

Director Loren A Unterseher executed 2 separate sales totaling 200,000 shares for $2,865,310.00, reducing his holdings by 2.9% from 6,911,256 to 6,711,256 shares. The sales at $14.13–$14.53 occurred as SKYT trades 37.4% below its 52-week high and 14.4% lower over the past 30 days, despite a 23.4% gain over 90 days. Unterseher's prior trades at this ticker show mixed near-term outcomes (ranging from -4.0% to +69.7% in 30-day periods), with no measurable long-term timing pattern yet established. The company carries a 5.70 P/E and reported $144.0M net income on $150.7M quarterly revenue with 19.4% annual growth, though full-year profitability remains negative.

2025-11-18
low
CFO
50,000 shares
$869,900
@ $17.40
Significance 4

CFO Manko Steve sold 50,000 shares (50.0K) of SKYT at $17.40 on 2025-11-14; stock now at $15.71

On November 14, 2025, Steve Manko (CFO) sold 50,000 shares at $17.40, reducing his holding by 15.3% from 327.1K to 277.1K shares. The stock has since declined to $15.71, now trading 33.5% below its 52-week high of $23.64, though up 39.0% over 90 days. Among his cross-ticker track record of 5 prior sales, a 50.00% well-timed rate and average 90-day return of +13.3% suggests limited predictive accuracy; at SKYT specifically, his 5 prior sells show mixed outcomes—one 90-day measurement (2023-08-16) was negative at -10.7%, while the most recent measurable trade (2025-08-08) posted a strong +37.4% 90-day return, indicating his timing at this ticker has been inconsistent. The company's fundamentals show strong recent profitability ($144.0M net income on $150.7M quarterly revenue) and attractive valuation (P/E of 6.04), though it was unprofitable on a full-year basis, creating ambiguity about the company's earnings trajectory. This sale does not clearly signal directional conviction either way given the insider's mixed historical outcomes at this ticker and the disconnect between recent quarterly results and annual profitability.

September 2025
2025-09-30 10b5-1 Plan
medium
120,370 shares
$2,169,308
@ $18.02
Significance 5

Director Unterseher sells 120,370 SKYT shares at $18.02 for $2.2M; stock at 52-week high after 70.4% 90-day surge

Unterseher sold 120,370 shares at $18.02 on 2025-09-26, reducing holdings from 6.93M to 6.81M shares (a -1.7% reduction). The sale occurred at $18.02 while current price stands at $18.66, the 52-week high, following a 70.4% gain over 90 days and 55.6% gain over 30 days. His cross-ticker track record shows 20 prior sells with a 0.00% well-timed rate (no pattern of selling before declines), while same-ticker history at SKYT shows 5 prior sales in rapid succession (2025-09-11 through 2025-09-19) with no measurable outcomes yet. SkyWater remains unprofitable with $-10.0M net income on $59.1M quarterly revenue, though full-year revenue grew 19.4% year-over-year. The concentrated selling pattern near the 52-week high, combined with weak profitability and lack of historical timing success, warrants monitoring of whether this represents pressure to realize gains in a volatility-sensitive stock, or reflects constraints independent of valuation.

2025-09-30 10b5-1 Plan
low
CFO
60,829 shares
$1,058,425
@ $17.40
Significance 3

CFO Steve Manko sold 60,829 shares of SKYT at $17.40 (total $1.1M) under 10b5-1 plan; post-transaction holdings 327,122 shares.

Steve Manko, CFO of SkyWater Technology, executed a scheduled sale of 60,829 shares at $17.40 on 2025-09-26 under a pre-arranged 10b5-1 trading plan, reducing his stake from 387,951 shares to 327,122 shares. As a Rule 10b5-1 transaction, this sale was established in advance and executed according to a predetermined formula, removing discretionary timing as a signal of executive sentiment. The sale represents a 15.7% reduction in his holdings but retains substantial remaining equity ownership, consistent with an executive maintaining meaningful stake exposure rather than a liquidation event.

2025-09-24 10b5-1 Plan
medium
CFO
43,383 shares
$656,298
@ $15.13
Significance 5

CFO Steve Manko sold 43.4K SKYT shares at $15.13 on 2025-09-22; stock gained +31.6% in 30 days after sale

Steve Manko (CFO) sold 43,383 shares at $15.13, reducing holdings by 10.5% to 368,407 shares. The sale occurred at a price near the 52-week peak ($16.06), and the stock has subsequently appreciated +31.6% over 30 days and +46.4% over 90 days since the transaction. His cross-ticker track record shows a 90d well-timed rate of 100.00% across 3 prior sells, but at SKYT specifically, outcomes are mixed: the prior 2025-08-08 sale at this ticker showed -25.1% 30-day return (well-timed), while the 2023-08-16 sale delivered -10.7% at 90 days (well-timed). However, this current sale contradicts that pattern—the stock has moved sharply upward post-transaction. Against this, the company remains unprofitable with net income of $-9,978,000.00 despite +19.4% annual revenue growth, creating tension between growth momentum and fundamental profitability concerns.

2025-09-23
medium
240,000 shares
$3,258,273
@ $13.58
Significance 6

Director Loren A Unterseher sells 240,000 shares (240.0K shares) for $3,258,273.38 across 3 trades at SkyWater Technology

Director Loren A Unterseher sold 240,000 shares in three separate transactions on 2025-09-18 and 2025-09-19 at prices ranging from $12.81 to $14.05, generating $3,258,273.38. He retains 6,931,626 shares post-transaction, representing a 3.3% reduction from prior holdings. The sales occurred during a period of significant upward momentum: the stock has risen 28.4% over 30 days and 60.3% over 90 days, currently trading at $15.20, which is near its 52-week high of $16.06. The company remains unprofitable with net income of $-9,978,000.00 on quarterly revenue of $59,063,000.00, though annual revenue growth stands at 19.4%. Unterseher's cross-ticker track record shows a 90-day well-timed sell rate of 0.00%, with his prior sales at SKYT (five trades within the last two weeks) not yet measurable in terms of outcome; the recent clustering of sales activity at this specific ticker warrants investor attention to understand whether this reflects routine portfolio management or a shift in conviction regarding the company's prospects.

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