BeStock  

Firefly Aerospace FLY

US equityMarket cap rank #2364Aerospace & DefenseSpace
$20.76 +$5.59 (+36.80%)
Market closed · Nov 6, 8:20 pm ET · Last extended-hours $20.83 +0.34%
Open$17.11
Prev close$15.18
Day range$16.31 – $20.88
Volume13.36M
Market cap$3.48B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership68.0%-0.83 pts vs. prior quarter
Institutions holding328-2 vs. prior quarter
Insider trades (recent)34 buys / 15 sellsNet buying
Short interest8.05% of floatDays to cover 4.0 · as of 15 Oct 2026
Short-sale volume share20.2%5-day average of daily volume

Short-sale volume as % of daily volume

10%18%25%32%Sep '26Oct '26Nov '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$3.82M (7 inflow days, 13 outflow days).

Net flow by order size, last 20 sessions

−$4.5MSuper+$640.7KBig+$867.3KMid+$117.0KSmall

Super/Big orders approximate institutional-size trades; Mid/Small approximate retail-size trades. Net buy minus sell value in each bucket, summed over the window.

The five largest holders on file together own 41.3% of shares outstanding.

Largest holders

  • AE Industrial Partners, LP30.26%
  • BlackRock3.53%
  • Thomas Markusic2.87%
  • State Street Global Advisors2.50%
  • Vanguard Portfolio Management, LLC2.15%
  • Vanguard Capital Management, LLC2.03%
  • Van Eck Associates Corporation1.82%
  • Two Sigma Investments, LP1.62%

By investor type

  • VC/PE Fund30.42%
  • Mutual Fund27.87%
  • Individual/Insider4.52%
  • Public Company4.38%
  • Hedge Fund4.10%
  • Private Company0.59%
  • Family Office/Trust0.38%
  • Insurance Company0.13%

Reported short interest has risen from 6.67% to 8.05% of float over the last 6 biweekly reports (31 Jul 2026 to 15 Oct 2026).

Recent institutional activity

HolderTypePeriodShare changeNew stake
Jason Kim Individual/Insider 2026/Q3 +898,738 0.5%
BlackRock Mutual Fund 2026/Q3 +3,865,915 3.5%
State Street Global Advisors Mutual Fund 2026/Q3 +3,688,226 2.5%
Two Sigma Investments, LP Hedge Fund 2026/Q3 +2,696,140 1.6%
Tema ETFs LLC Mutual Fund 2026/Q3 +2,279,159 1.4%
Tidal Investments LLC Mutual Fund 2026/Q3 +2,167,135 1.3%
JPMorgan Chase & Co. Public Company 2026/Q3 +1,826,230 1.1%
Mirae Asset Global Investments Co., Ltd Mutual Fund 2026/Q3 +1,166,249 0.7%
Vanguard Portfolio Management, LLC Mutual Fund 2026/Q3 +1,163,997 2.1%
Phoenix Investments & Finances Ltd Mutual Fund 2026/Q3 +1,152,803 1.1%
Van Eck Associates Corporation Mutual Fund 2026/Q3 +927,804 1.8%
Geode Capital Management, LLC Mutual Fund 2026/Q3 +898,084 0.9%
Vanguard Capital Management, LLC Mutual Fund 2026/Q3 +877,438 2.0%
T. Rowe Price Group, Inc. Mutual Fund 2026/Q3 +764,534 1.0%
Morgan Stanley Public Company 2026/Q3 +735,404 0.7%

Institutional buy/sell activity by reporting period, largest moves first.

Insider transactions

DateInsiderTitleTransactionSharesPriceHeld after
4 Oct 2026 Richard Ambrose Independent Director Other Acquisition +6,716 – 6,716
29 Sep 2026 AE Industrial Partners, LP Other Disposition -42,215 – 50,663,217
21 Sep 2026 Jason Kim Chief Executive Officer Derivative Exercise and Retained +43,278 $2.31 898,738
16 Sep 2026 Darren Ma Chief Financial Officer Derivative Exercise and Retained +87,519 $0.49 136,089
15 Sep 2026 Jason Kim Chief Executive Officer Sale to Issuer -86,265 $20.28 135,957
15 Sep 2026 Russel Ferring Chief Technology Officer Sale to Issuer -16,700 $20.28 347,168
15 Sep 2026 Remington Wu Sale to Issuer -1,827 $20.28 5,673
15 Sep 2026 Darren Ma Chief Financial Officer Sale to Issuer -18,565 $23.10 136,089
13 Aug 2026 Ryan Boland Independent Director Other Acquisition +3,193 – 134,120
13 Aug 2026 Ryan Boland Independent Director Other Disposition -40,821 – 134,120
3 Aug 2026 Nathan O'Konek General Counsel Other Acquisition +103,154 – 103,154
3 Jun 2026 Christopher Emerson Independent Director Other Acquisition +3,630 – 6,964
3 Jun 2026 Pamela Braden Independent Director Other Acquisition +3,630 – 6,964
3 Jun 2026 Kevin McAllister Independent Director Other Acquisition +3,630 – 6,964
3 Jun 2026 Thomas Zurbuchen Former Independent Director Other Acquisition +3,630 – 6,964
3 Jun 2026 Kirk Konert Independent Chairperson Other Acquisition +3,630 – 6,964
3 Jun 2026 Jonathan Lusczakoski Independent Director Other Acquisition +3,630 – 6,964
3 Jun 2026 Ryan Boland Independent Director Other Acquisition +3,630 – 6,964
31 May 2026 AE Industrial Partners, LP Private Disposition -8,000,000 $48.00 50,705,432
17 May 2026 David Wheeler Former Senior Vice President Derivative Exercise and Sale -3,765 $45.12 62,158

From Form 4/Form 144 filings. Negative share counts are disposals (sales, gifts, or shares withheld for taxes); positive are acquisitions.

Short interest, by report

Report dateShares short% of floatDays to cover
15 Oct 2026 13,480,890 8.1% 4.0
30 Sep 2026 11,937,187 7.1% 3.2
15 Sep 2026 11,105,681 6.6% 5.1
31 Aug 2026 10,819,717 6.5% 4.6
14 Aug 2026 11,126,799 6.6% 3.2
31 Jul 2026 10,948,785 6.7% 3.1

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